feat(governed): Release Source Admission (AIOS-BASELINE-1.1-RELEASE-SOURCE-ADMISSION)

Make governed release source closure explicit so a pushed governed candidate
can enter the authoritative Git/release closure without manual runtime
overwrite or fixed-recipe bypass.

- Gitea machine transport: add _safe_branch() and exact OID/branch verification.
- release_source_admission.py (new): admit a governed source by verifying remote
  branch -> exact OID, fetching only to refs/aios/release-sources/<OID>,
  validating authoritative main ancestry + tree OID, and writing a policy-bound,
  HMAC-authenticated immutable admission record (source_admission_hmac).
- trusted candidate builder: read-only admission verifier, remains
  PrivateNetwork / read-only; missing admission surfaces SOURCE_ADMISSION_REQUIRED.
- Model API / release saga: consume admission records and return machine-actionable
  SOURCE_ADMISSION_REQUIRED (not NOT_FOUND) when a non-fixed source is unadmitted.
- systemd: add aios-release-source-admission.service (oneshot, root/gitops,
  AIOS_GITOPS_WRITES_ENABLED=false, independent source_admission_hmac credential);
  wire source_admission_hmac into trusted builder; update staging unit.
- Fixed V2R2C2/V2R2C3 recipes are not overridden by admission.
- Tests: new release_source_admission + adjusted builder/model-api/live-executor/
  readiness tests.

Verified: 13-file after_sha256 byte-exact; py_compile PASS;
Linux 326 targeted passed / 0 failed; acceptance 165; regression 1401;
systemd-analyze verify 3/3 PASS.

Base: a320ea3 (agent/baseline-1.1-principal-recovery-20260908).

.gitleaks.toml

@@ -0,0 +1,10 @@
+title = "AIOS repository secret scan policy"
+
+[extend]
+useDefault = true
+
+[allowlist]
+description = "Exact non-secret Task Admission test idempotency fixture in the historical PR commit"
+condition = "AND"
+paths = ['''tests/test_task_admission_bootstrap_http\.py$''']
+regexes = ['''idempotency-1''']

active-runtime/app/aios_agent_task_api_lineage_supersession.py

@@ -0,0 +1,122 @@
+"""Staging HTTP overlay for the exact Task lineage supersession capability."""
+from __future__ import annotations
+
+from http.server import ThreadingHTTPServer
+from typing import Any, Callable, Mapping
+from urllib.parse import urlparse
+
+from aios_task_lineage_supersession import (
+    DECISION_SCHEMA,
+    TaskLineageSupersessionController,
+    TaskLineageSupersessionError,
+)
+
+SUPERSESSION_ROUTE = "/v1/control/task-lineage-supersession"
+
+
+def _status(error: TaskLineageSupersessionError) -> int:
+    return error.http_status
+
+
+class LineageSupersessionEndpoint:
+    """Framework-neutral endpoint; authentication must precede all parsing/mutation."""
+
+    def __init__(
+        self,
+        db_path,
+        verifier,
+        authenticate_control: Callable[[Mapping[str, str]], Any],
+        *,
+        clock=None,
+        identity_digest=None,
+    ) -> None:
+        self.authenticate_control = authenticate_control
+        self.controller = TaskLineageSupersessionController(
+            db_path, verifier, clock=clock, identity_digest=identity_digest
+        )
+
+    def post(self, headers: Mapping[str, str], body: Mapping[str, Any]) -> tuple[int, dict[str, Any]]:
+        self.authenticate_control(headers)
+        try:
+            result = self.controller.supersede(body)
+        except TaskLineageSupersessionError as exc:
+            return _status(exc), {"error": exc.code}
+        return (200 if result.get("idempotent") else 201), result
+
+
+def build_runtime():
+    """Bind to the already-active recovery API and its formal Owner verifier lazily."""
+    try:
+        from aios_agent_task_api import APIConfig
+        from aios_agent_task_api_p0_failed_lease_recovery import (
+            P0FailedLeaseRecoveryHandler,
+            P0FailedLeaseRecoveryTaskApplication,
+        )
+        from aios_agent_task_protocol import TaskProtocolError
+        from aios_owner_approval_verifier import (
+            GrantRootOwnerApprovalVerifier,
+            OwnerApprovalVerifierError,
+        )
+    except ImportError as exc:
+        raise RuntimeError("LINEAGE_SUPERSESSION_RUNTIME_OVERLAY_UNAVAILABLE") from exc
+
+    # The active entrypoint layers failed- and active-lease recovery on top of
+    # expired recovery.  Inherit that current layer so adding lineage does not
+    # silently remove either already-deployed recovery route.
+    class Application(P0FailedLeaseRecoveryTaskApplication):
+        def __init__(self, config: Any) -> None:
+            super().__init__(config)
+            try:
+                verifier = GrantRootOwnerApprovalVerifier()
+            except OwnerApprovalVerifierError as exc:
+                raise TaskProtocolError(str(exc), 503) from exc
+            self.lineage_supersession = LineageSupersessionEndpoint(
+                config.db_path, verifier, self.authenticate_control
+            )
+
+        def health(self) -> dict[str, Any]:
+            value = dict(super().health())
+            value.update({
+                "task_lineage_supersession": True,
+                "task_lineage_supersession_schema": DECISION_SCHEMA,
+                "task_lineage_supersession_exact_scope": True,
+                "task_lineage_supersession_exact_cas": True,
+                "task_lineage_supersession_append_only": True,
+                "task_lineage_supersession_caller_payload": False,
+            })
+            return value
+
+    class Handler(P0FailedLeaseRecoveryHandler):
+        app: Application | None = None
+
+        def do_POST(self) -> None:
+            path = urlparse(self.path).path.rstrip("/") or "/"
+            if path != SUPERSESSION_ROUTE:
+                super().do_POST()
+                return
+
+            def action() -> None:
+                if self.app is None:
+                    raise TaskProtocolError("SERVICE_UNAVAILABLE", 503)
+                status, result = self.app.lineage_supersession.post(
+                    self._headers(), self._body()
+                )
+                if "error" in result:
+                    raise TaskProtocolError(str(result["error"]), status)
+                self._json(result, status)
+
+            self._run(action)
+
+    return APIConfig, Application, Handler
+
+
+def serve(config=None) -> None:
+    APIConfig, Application, Handler = build_runtime()
+    config = config or APIConfig.from_env()
+    application = Application(config)
+    Handler.app = application
+    ThreadingHTTPServer((config.host, config.port), Handler).serve_forever()
+
+
+if __name__ == "__main__":
+    serve()

active-runtime/app/aios_agent_task_initial_execution_projection.py

@@ -389,6 +389,8 @@ class CanonicalBridgeInitialExecutionResolver:
 class InitialExecutionProjectionStore:
     """Apply the exact initial projection through one durable CAS transaction."""
 
+    allows_supersession_child = False
+
     def __init__(
         self,
         db_path: Path,
@@ -406,6 +408,32 @@ class InitialExecutionProjectionStore:
         connection.execute("PRAGMA busy_timeout=30000")
         return connection
 
+    def _validate_projection_entrypoint(
+        self, connection: sqlite3.Connection, task_id: str
+    ) -> None:
+        """Fence formal lineage children from the legacy projection entrypoint.
+
+        A supersession child carries additional append-only lineage evidence that
+        must be committed with its initial projection.  The legacy endpoint has
+        no such contract, so it must not be able to project one accidentally.
+        """
+        tables = {
+            str(row[0])
+            for row in connection.execute(
+                "SELECT name FROM sqlite_master WHERE type='table'"
+            )
+        }
+        if "task_lineage_supersessions" not in tables:
+            return
+        lineage = connection.execute(
+            "SELECT 1 FROM task_lineage_supersessions WHERE child_task_id=?",
+            (task_id,),
+        ).fetchone()
+        if lineage is not None and not self.allows_supersession_child:
+            raise InitialExecutionProjectionError(
+                "SUPERSESSION_INITIAL_PROJECTION_ENDPOINT_REQUIRED", 409
+            )
+
     @staticmethod
     def _columns(connection: sqlite3.Connection, table: str) -> dict[str, sqlite3.Row]:
         return {
@@ -622,6 +650,7 @@ class InitialExecutionProjectionStore:
         ).fetchone()
         if task is None:
             raise InitialExecutionProjectionError("TASK_NOT_FOUND", 404)
+        self._validate_projection_entrypoint(connection, task_id)
         if (
             str(task["status"]) != request.expected_status
             or int(task["revision"]) != request.expected_revision
@@ -771,6 +800,29 @@ class InitialExecutionProjectionStore:
             "trace_id": str(task["task_id"]),
         }
 
+    def _projection_event_extension(
+        self,
+        connection: sqlite3.Connection,
+        task_id: str,
+        request: InitialExecutionProjectionRequest,
+        execution: Mapping[str, Any],
+        applied_revision: int,
+    ) -> Mapping[str, Any]:
+        """Return server-derived fields for a specialized projection event."""
+        return {}
+
+    def _insert_projection_extension(
+        self,
+        connection: sqlite3.Connection,
+        task_id: str,
+        request: InitialExecutionProjectionRequest,
+        execution: Mapping[str, Any],
+        event_payload: Mapping[str, Any],
+        applied_revision: int,
+    ) -> None:
+        """Persist specialized evidence in the caller's projection transaction."""
+        return None
+
     def project(
         self,
         task_id: str,
@@ -782,6 +834,7 @@ class InitialExecutionProjectionStore:
         request_sha = _sha(request.public())
 
         with self._connect() as connection:
+            self._validate_projection_entrypoint(connection, task_id)
             self._ensure_receipt_table(connection)
             replay = connection.execute(
                 "SELECT * FROM task_initial_execution_projections "
@@ -915,6 +968,20 @@ class InitialExecutionProjectionStore:
                 "main_write": False,
                 "production_write": False,
             }
+            extension = dict(
+                self._projection_event_extension(
+                    connection,
+                    task_id,
+                    request,
+                    execution,
+                    applied_revision,
+                )
+            )
+            if set(extension).intersection(event_payload):
+                raise InitialExecutionProjectionError(
+                    "INITIAL_EXECUTION_PROJECTION_EVENT_EXTENSION_CONFLICT", 500
+                )
+            event_payload.update(extension)
             self._insert_event(connection, task_id, event_payload)
             connection.execute(
                 """
@@ -938,6 +1005,14 @@ class InitialExecutionProjectionStore:
                     _now(),
                 ),
             )
+            self._insert_projection_extension(
+                connection,
+                task_id,
+                request,
+                execution,
+                event_payload,
+                applied_revision,
+            )
             connection.commit()
             return {
                 "task_id": task_id,

active-runtime/app/aios_baseline/__init__.py

@@ -0,0 +1,2 @@
+"""Implementation Baseline 1.1 integrations for existing AIOS authorities."""
+BASELINE_VERSION = '1.1'

active-runtime/app/aios_baseline/cli.py

@@ -0,0 +1,281 @@
+"""Executable validation profile and thin Action client.
+
+This supplied ZIP does not establish the online Task authority. Consequently
+the runnable profile creates an explicitly isolated validation authority. Online
+activation requires the authority mapping gates documented in this package.
+"""
+from __future__ import annotations
+import argparse
+import json
+import os
+from pathlib import Path
+import secrets
+import re
+import signal
+import stat
+import threading
+import time
+
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey,Ed25519PublicKey
+from task_plane.store import TaskPlaneStore
+from aios_gitops_job_controller import JobStore
+from .authorization import AuthorizationService,sign_owner_delegation_grant
+from .host import SystemdHost
+from .lineage import LineageLedger
+from .operations import OperationRegistry
+from .runtime_contract import validate_contract
+from .service import BaselineService,Identity
+from .worker_policy import WorkerProfile
+
+
+def _unique_object(pairs):
+    result={}
+    for key,value in pairs:
+        if key in result: raise ValueError('DUPLICATE_JSON_KEY')
+        result[key]=value
+    return result
+
+
+def read_json(path):
+    return json.loads(_safe_read(Path(path).absolute()).decode('utf-8'),object_pairs_hook=_unique_object,
+        parse_constant=lambda _value: (_ for _ in ()).throw(ValueError('NON_FINITE_JSON')))
+
+
+def _path(value):
+    if not isinstance(value,str): raise ValueError('PATH_INVALID')
+    prefix='${CREDENTIALS_DIRECTORY}/'
+    if value.startswith(prefix):
+        directory=os.environ.get('CREDENTIALS_DIRECTORY')
+        name=value[len(prefix):]
+        if not directory or '/' in name or name in ('','.','..'): raise ValueError('CREDENTIAL_PATH_INVALID')
+        value=str(Path(directory)/name)
+    if '$' in value or not Path(value).is_absolute() or '..' in Path(value).parts:
+        raise ValueError('PATH_MUST_BE_EXPLICIT_ABSOLUTE')
+    return Path(value)
+
+
+def _safe_read(path,*,private=False):
+    path=_path(str(path))
+    fd=os.open(path,os.O_RDONLY|os.O_NOFOLLOW|os.O_CLOEXEC)
+    try:
+        info=os.fstat(fd)
+        forbidden=0o077 if private else 0o022
+        if not stat.S_ISREG(info.st_mode) or info.st_uid not in {0,os.geteuid()} or info.st_mode & forbidden or info.st_size>65536:
+            raise ValueError('CONFIG_OR_SECRET_FILE_PERMISSIONS_INVALID')
+        with os.fdopen(fd,'rb',closefd=False) as stream:
+            data=stream.read(65537)
+        if len(data)>65536: raise ValueError('CONFIG_OR_SECRET_FILE_TOO_LARGE')
+        return data
+    finally: os.close(fd)
+
+
+def secret(path):
+    return _safe_read(path,private=True)
+
+
+def load_configuration(path):
+    config=read_json(path)
+    required={'schema','profile','state_dir','listen','machine_key_id','machine_key_file',
+        'owner_public_key_files','owner_key_scopes','identities','workers','contracts','operations','host_bindings'}
+    if type(config) is not dict or set(config)-{'receipt_public_key_files'}!=required or config['schema']!='aios.baseline-server-config.v1':
+        raise ValueError('SERVER_CONFIG_FIELDS_INVALID')
+    if config['profile']!='isolated-validation': raise ValueError('PROFILE_REQUIRES_VERIFIED_AUTHORITY_ADAPTER')
+    listen=config['listen']
+    if type(listen) is not dict or set(listen)!={'host','port'} or listen['host']!='127.0.0.1' or type(listen['port']) is not int or not 1024<=listen['port']<=65535:
+        raise ValueError('LOOPBACK_LISTENER_REQUIRED')
+    state=_path(config['state_dir'])
+    if state.is_symlink() or state==Path('/') or state.name in {'aios','active-runtime','app'}:
+        raise ValueError('ISOLATED_STATE_PATH_REQUIRED')
+    if not isinstance(config['machine_key_id'],str) or not config['machine_key_id']: raise ValueError('MACHINE_ID_REQUIRED')
+    machine=serialization.load_pem_private_key(secret(config['machine_key_file']),password=None)
+    if not isinstance(machine,Ed25519PrivateKey): raise ValueError('ED25519_MACHINE_KEY_REQUIRED')
+    keys={}
+    for key_id,filename in config['owner_public_key_files'].items():
+        public=serialization.load_pem_public_key(_safe_read(filename))
+        if not isinstance(public,Ed25519PublicKey): raise ValueError('ED25519_OWNER_KEY_REQUIRED')
+        keys[key_id]=public
+    if not keys: raise ValueError('OWNER_TRUST_ROOT_REQUIRED')
+    receipt_keys={}
+    for key_id,filename in config.get('receipt_public_key_files',{}).items():
+        public=serialization.load_pem_public_key(_safe_read(filename))
+        if not isinstance(public,Ed25519PublicKey): raise ValueError('ED25519_RECEIPT_KEY_REQUIRED')
+        receipt_keys[key_id]=public
+    tokens={}
+    for entry in config['identities']:
+        if type(entry) is not dict or set(entry)-{'token_file','tenant_id','subject_id','role','worker_id'}:
+            raise ValueError('IDENTITY_FIELDS_INVALID')
+        token=secret(entry['token_file']).decode().strip()
+        if len(token)<32 or len(token)>512 or any(x.isspace() for x in token) or token in tokens: raise ValueError('TOKEN_INVALID_OR_DUPLICATE')
+        identity=Identity(**{k:v for k,v in entry.items() if k!='token_file'})
+        if identity.role not in {'user','owner','worker'} or any(not isinstance(v,str) or not v for v in (identity.tenant_id,identity.subject_id)):
+            raise ValueError('IDENTITY_INVALID')
+        if (identity.role=='worker') != bool(identity.worker_id): raise ValueError('WORKER_IDENTITY_INVALID')
+        tokens[token]=identity
+    workers={}
+    for entry in config['workers']:
+        worker=WorkerProfile.from_dict(entry)
+        if worker.worker_id in workers: raise ValueError('WORKER_DUPLICATE')
+        workers[worker.worker_id]=worker
+    for identity in tokens.values():
+        if identity.role=='worker':
+            worker=workers.get(identity.worker_id)
+            if not worker or worker.identity!=identity.subject_id or identity.tenant_id not in worker.tenant_scope:
+                raise ValueError('WORKER_IDENTITY_SCOPE_MISMATCH')
+    contracts=[validate_contract(c) for c in config['contracts']]
+    operations=OperationRegistry(config['operations'])
+    host=SystemdHost(config['host_bindings'])
+    config['_resolved']={'state':state,'machine':machine,'owner_keys':keys,'workers':workers,
+        'contracts':contracts,'operations':operations,'host':host,'tokens':tokens,'receipt_keys':receipt_keys}
+    return config,tokens
+
+
+def build_service(config):
+    resolved=config['_resolved']
+    state=resolved['state']
+    marker=state/'ISOLATED_VALIDATION_AUTHORITY'
+    if state.exists() and not marker.is_file() and any(state.iterdir()):
+        raise ValueError('EXISTING_STATE_AUTHORITY_NOT_IDENTIFIED')
+    if marker.exists() and _safe_read(marker)!=b'aios.baseline.isolated-validation.v1\n':
+        raise ValueError('STATE_AUTHORITY_MARKER_INVALID')
+    state.mkdir(parents=True,exist_ok=True,mode=0o700)
+    if state.stat().st_mode & 0o077: raise ValueError('STATE_DIRECTORY_PERMISSIONS_INVALID')
+    if not marker.exists(): marker.write_text('aios.baseline.isolated-validation.v1\n')
+    auth=AuthorizationService(state/'authorization.sqlite3',resolved['owner_keys'],resolved['machine'],config['machine_key_id'],
+        owner_key_scopes=config['owner_key_scopes'],
+        control_context_verifier=lambda ctx:isinstance(ctx,Identity) and ctx.role=='owner' and any(ctx is known for known in resolved['tokens'].values()))
+    store=TaskPlaneStore(str(state/'tasks.sqlite3'),high_assurance=True)
+    return BaselineService(store,state/'jobs',auth,resolved['contracts'],resolved['operations'],resolved['workers'],
+        resolved['host'],LineageLedger(state/'lineage.sqlite3',store,JobStore(state/'jobs').read),resolved['machine'],
+        machine_key_id=config['machine_key_id'],trusted_receipt_keys=resolved['receipt_keys'])
+
+
+def _write_json(path,value,mode=0o600):
+    data=(json.dumps(value,ensure_ascii=False,sort_keys=True,indent=2,allow_nan=False)+'\n').encode()
+    fd=os.open(path,os.O_WRONLY|os.O_CREAT|os.O_EXCL,mode)
+    with os.fdopen(fd,'wb') as out: out.write(data)
+
+
+def initialize_validation(directory,*,unit):
+    """Create explicit local-only example identities, not production trust roots."""
+    directory=Path(directory).absolute()
+    directory.mkdir(mode=0o700)  # Never overwrite an existing installation.
+    # Validate unit syntax before writing any identity material.
+    SystemdHost({'validation:staging:sample':unit})
+    owner=Ed25519PrivateKey.generate()
+    machine=Ed25519PrivateKey.generate()
+    for name,key in [('owner-private.pem',owner),('machine-private.pem',machine)]:
+        path=directory/name
+        fd=os.open(path,os.O_WRONLY|os.O_CREAT|os.O_EXCL,0o600)
+        with os.fdopen(fd,'wb') as out:
+            out.write(key.private_bytes(serialization.Encoding.PEM,serialization.PrivateFormat.PKCS8,serialization.NoEncryption()))
+    (directory/'owner-public.pem').write_bytes(owner.public_key().public_bytes(serialization.Encoding.PEM,serialization.PublicFormat.SubjectPublicKeyInfo))
+    for name in ('user.token','worker.token'):
+        fd=os.open(directory/name,os.O_WRONLY|os.O_CREAT|os.O_EXCL,0o600)
+        with os.fdopen(fd,'w') as out: out.write(secrets.token_urlsafe(48)+'\n')
+    operation={'operation_id':'service-status','version':1,'effect_class':'READ_ONLY','handler_ref':'host.service_status',
+        'input_schema':'aios.operation.service-status.input.v1','required_permissions':['service-status'],'timeout_seconds':10,
+        'readback':{'mode':'NONE','required':False},'retry':{'mode':'SAFE','max_attempts':2},'reconcile':{'mode':'NONE'},
+        'rollback':{'mode':'NONE'},'owner_boundary':{'mode':'WITHIN_GRANT'}}
+    contract={'contract_schema':'aios.runtime-contract.v1','contract_revision':1,'component_id':'sample','environment':'staging',
+        'tenant_scope':'validation','lifecycle':'active','entrypoints':{'status':{'component_id':'sample','environment':'staging','resolver_ref':'service://sample/status'}},
+        'bindings':{},'resource_refs':{},'credential_refs':{},'operations':['service-status']}
+    config={'schema':'aios.baseline-server-config.v1','profile':'isolated-validation','state_dir':str(directory/'state'),
+        'listen':{'host':'127.0.0.1','port':8769},'machine_key_id':'validation-machine','machine_key_file':str(directory/'machine-private.pem'),
+        'owner_public_key_files':{'validation-owner':str(directory/'owner-public.pem')},
+        'owner_key_scopes':{'validation-owner':{'tenant_ids':['validation'],'subject_ids':['owner']}},
+        'identities':[{'token_file':str(directory/'user.token'),'tenant_id':'validation','subject_id':'owner','role':'owner'},
+                      {'token_file':str(directory/'worker.token'),'tenant_id':'validation','subject_id':'machine-worker','role':'worker','worker_id':'diagnostic-worker'}],
+        'workers':[{'worker_id':'diagnostic-worker','identity':'machine-worker','tenant_scope':['validation'],'subject_scope':['owner'],
+            'capabilities':['service-status'],'priority':10,'fallback_executor':False,'heartbeat_seconds':15,'max_concurrency':1}],
+        'contracts':[contract],'operations':[operation],'host_bindings':{'validation:staging:sample':unit}}
+    _write_json(directory/'server.json',config)
+    _write_json(directory/'worker.json',{'schema':'aios.baseline-worker-config.v1','base_url':'http://127.0.0.1:8769',
+        'token_file':str(directory/'worker.token'),'poll_seconds':2})
+    grant=sign_owner_delegation_grant(owner,'validation-owner',grant_id='validation-grant',generation=1,
+        tenant_id='validation',subject_id='owner',mission_ids=('validation-mission',),task_ids=('*',),operations=('service-status',),
+        component_ids=('sample',),environments=('staging',),issued_at=int(time.time()),validity_mode='UNTIL_REVOKED',max_effects=20)
+    _write_json(directory/'grant.json',grant)
+    _write_json(directory/'goal.json',{'mission_id':'validation-mission','grant_id':'validation-grant','operation':'service-status',
+        'component_id':'sample','environment':'staging','inputs':{},'intent':'检查已绑定 staging 服务并生成诊断结果'})
+    return directory
+
+
+def main(argv=None):
+    parser=argparse.ArgumentParser(description=__doc__)
+    sub=parser.add_subparsers(dest='command',required=True)
+    init=sub.add_parser('init-validation');init.add_argument('--directory',required=True);init.add_argument('--service-unit',required=True)
+    for name in ('preflight','server','grant-import','grant-revoke'):
+        item=sub.add_parser(name);item.add_argument('--config',required=True)
+        if name=='grant-import': item.add_argument('--grant',required=True)
+        if name=='grant-revoke':
+            item.add_argument('--grant',required=True);item.add_argument('--owner-token-file',required=True)
+    worker=sub.add_parser('worker');worker.add_argument('--config',required=True);worker.add_argument('--once',action='store_true')
+    for name in ('goal-submit','goal-explain','task-get','task-cancel'):
+        item=sub.add_parser(name);item.add_argument('--base-url',default='http://127.0.0.1:8769');item.add_argument('--token-file',required=True)
+        if name=='goal-submit': item.add_argument('--request',required=True);item.add_argument('--idempotency-key',required=True)
+        elif name=='goal-explain': item.add_argument('--mission-id',required=True)
+        else: item.add_argument('--task-id',required=True)
+    args=parser.parse_args(argv)
+    try:
+        if args.command=='init-validation':
+            print(json.dumps({'profile':'isolated-validation','directory':str(initialize_validation(args.directory,unit=args.service_unit))}));return 0
+        if args.command in {'preflight','server','grant-import','grant-revoke'}:
+            config,tokens=load_configuration(args.config)
+            if args.command=='preflight':
+                print(json.dumps({'status':'CONFIG_VALID','profile':config['profile'],'online_authority':'NOT_VERIFIED',
+                    'production_activation':'BLOCKED','registered_operations':len(config['operations'])}));return 0
+            service=build_service(config)
+            if args.command=='grant-import':
+                grant=service.authorization.register_grant(read_json(args.grant))
+                print(json.dumps({'grant_id':grant['payload']['grant_id'],'registered':True}));return 0
+            if args.command=='grant-revoke':
+                context=tokens.get(secret(args.owner_token_file).decode().strip())
+                grant=read_json(args.grant)
+                payload=grant['payload']
+                if context is None or context.role!='owner' or payload['tenant_id']!=context.tenant_id or payload['subject_id']!=context.subject_id:
+                    raise ValueError('OWNER_SCOPE_DENIED')
+                # Register verifies signature and ID before a target can be revoked.
+                service.authorization.register_grant(grant)
+                generation=service.authorization.revoke_grant(payload['grant_id'],control_context=context)
+                print(json.dumps({'grant_id':payload['grant_id'],'revocation_generation':generation}));return 0
+            from .transport import serve
+            server=serve(service,tokens,**config['listen'])
+            stop=threading.Event()
+            def recover_loop():
+                while not stop.wait(5):
+                    try: service.recover()
+                    except Exception: service.storage_blocked=True
+            recovery=threading.Thread(target=recover_loop,daemon=True);recovery.start()
+            def shutdown(_signal,_frame):
+                stop.set();threading.Thread(target=server.shutdown,daemon=True).start()
+            signal.signal(signal.SIGTERM,shutdown);signal.signal(signal.SIGINT,shutdown)
+            print(json.dumps({'status':'LISTENING','host':config['listen']['host'],'port':config['listen']['port'],'profile':config['profile']}),flush=True)
+            try: server.serve_forever(poll_interval=0.5)
+            finally: stop.set();server.server_close()
+            return 0
+        from .transport import HttpTransport
+        if args.command=='worker':
+            from .worker import OperationWorker
+            config=read_json(args.config)
+            if type(config) is not dict or set(config)!={'schema','base_url','token_file','poll_seconds'} or config['schema']!='aios.baseline-worker-config.v1': raise ValueError('WORKER_CONFIG_INVALID')
+            transport=HttpTransport(config['base_url'],secret(config['token_file']).decode().strip(),timeout_seconds=20)
+            worker=OperationWorker(transport,poll_seconds=config['poll_seconds'])
+            if args.once: print(json.dumps(worker.run_once(),ensure_ascii=False));return 0
+            worker.run_forever();return 0
+        transport=HttpTransport(args.base_url,secret(args.token_file).decode().strip(),timeout_seconds=20)
+        if args.command=='goal-submit': result=transport.submit_goal(read_json(args.request),idempotency_key=args.idempotency_key)
+        elif args.command=='goal-explain': result=transport.explain(args.mission_id)
+        elif args.command=='task-get': result=transport.get_task(args.task_id)
+        else: result=transport.cancel_task(args.task_id)
+        print(json.dumps(result,ensure_ascii=False,indent=2,allow_nan=False));return 0
+    except (Exception,KeyboardInterrupt) as exc:
+        # Avoid dumping request bodies, credential material or Python tracebacks.
+        text=str(exc)
+        code=text if re.fullmatch(r'[A-Z][A-Z0-9_]{2,100}',text) else getattr(exc,'code',type(exc).__name__)
+        print(json.dumps({'status':'ERROR','error_type':type(exc).__name__,'code':code,'message':'See local configuration and acceptance runbook; no action was reported successful.'}))
+        return 1
+
+
+if __name__=='__main__':
+    raise SystemExit(main())

active-runtime/app/aios_baseline/evidence.py

@@ -0,0 +1,39 @@
+"""Canonical, domain-separated machine receipts, distinct from Owner grants."""
+import base64
+import hashlib
+import json
+from cryptography.exceptions import InvalidSignature
+
+
+def canonical(value):
+    return json.dumps(value,sort_keys=True,separators=(',',':'),ensure_ascii=False,allow_nan=False).encode()
+
+
+def digest(value):
+    return hashlib.sha256(canonical(value)).hexdigest()
+
+
+class ReceiptSigner:
+    def __init__(self, private_key, *, key_id='baseline-machine', trusted_public_keys=None):
+        self.private_key=private_key
+        self.public_key=private_key.public_key()
+        self.key_id=key_id
+        self.trusted_public_keys=dict(trusted_public_keys or {})
+        self.trusted_public_keys[key_id]=self.public_key
+
+    def sign(self,payload):
+        raw=canonical({'domain':'aios.operation-receipt.v1','key_id':self.key_id,'payload':payload})
+        return {'schema':'aios.operation-receipt.v1','key_id':self.key_id,'payload':payload,
+                'signature':base64.b64encode(self.private_key.sign(raw)).decode()}
+
+    def verify(self,envelope):
+        try:
+            if type(envelope) is not dict or set(envelope)!={'schema','key_id','payload','signature'} or envelope['schema']!='aios.operation-receipt.v1' or type(envelope['payload']) is not dict:
+                return False
+            public=self.trusted_public_keys.get(envelope['key_id'])
+            if public is None: return False
+            raw=canonical({'domain':envelope['schema'],'key_id':envelope['key_id'],'payload':envelope['payload']})
+            public.verify(base64.b64decode(envelope['signature'],validate=True),raw)
+            return True
+        except (ValueError,TypeError,InvalidSignature,KeyError):
+            return False

active-runtime/app/aios_baseline/host.py

@@ -0,0 +1,103 @@
+"""Small registered host diagnostics; unit bindings come from trusted configuration."""
+from __future__ import annotations
+import os
+from pathlib import Path
+import re
+import signal
+import selectors
+import stat
+import subprocess
+import time
+
+
+class HostError(RuntimeError):
+    pass
+
+
+class SystemdHost:
+    PROPERTIES = ('Id', 'ActiveState', 'SubState', 'MainPID', 'InvocationID')
+
+    def __init__(self, bindings: dict[str, str], *, executable: str = '/usr/bin/systemctl',
+                 timeout_seconds: float = 10):
+        if type(timeout_seconds) not in (int,float) or not 0 < timeout_seconds <= 60:
+            raise HostError('HOST_TIMEOUT_INVALID')
+        self.bindings = dict(bindings)
+        for binding,unit in self.bindings.items():
+            if not isinstance(binding,str) or len(binding.split(':'))!=3 or any(not re.fullmatch(r'[A-Za-z0-9_.-]+',part) for part in binding.split(':')):
+                raise HostError('HOST_TENANT_BINDING_INVALID')
+            if not isinstance(unit, str) or not re.fullmatch(r'[A-Za-z0-9_.@:-]+\.service', unit):
+                raise HostError('HOST_UNIT_INVALID')
+        if not Path(executable).is_absolute() or not Path(executable).is_file() or Path(executable).is_symlink():
+            raise HostError('HOST_EXECUTABLE_UNAVAILABLE')
+        info=Path(executable).stat()
+        if info.st_uid not in {0,os.geteuid()} or info.st_mode & 0o022:
+            raise HostError('HOST_EXECUTABLE_UNTRUSTED')
+        self._executable_identity=(info.st_dev,info.st_ino,info.st_size,info.st_mtime_ns)
+        self.executable = executable
+        self.timeout_seconds = timeout_seconds
+
+    def status(self, component_id: str, environment: str, *, tenant_id: str, deadline=None) -> dict:
+        if any(not isinstance(part,str) or not re.fullmatch(r'[A-Za-z0-9_.-]+',part) for part in (tenant_id,environment,component_id)):
+            raise HostError('HOST_SCOPE_INVALID')
+        unit = self.bindings.get(f'{tenant_id}:{environment}:{component_id}')
+        if not unit:
+            raise HostError('HOST_BINDING_NOT_FOUND')
+        remaining=self.timeout_seconds if deadline is None else min(self.timeout_seconds,deadline-time.time())
+        if remaining<=0: raise HostError('HOST_OPERATION_TIMEOUT')
+        stop_at=time.monotonic()+remaining
+        executable_fd=os.open(self.executable,os.O_RDONLY|os.O_NOFOLLOW|os.O_CLOEXEC)
+        try:
+            info=os.fstat(executable_fd)
+            if not stat.S_ISREG(info.st_mode) or (info.st_dev,info.st_ino,info.st_size,info.st_mtime_ns)!=self._executable_identity:
+                raise HostError('HOST_EXECUTABLE_IDENTITY_CHANGED')
+            executable_path=f'/proc/self/fd/{executable_fd}'
+            if not Path(executable_path).exists(): raise HostError('HOST_EXECUTOR_PLATFORM_UNSUPPORTED')
+            argv=[executable_path,'show','--no-pager','--property='+','.join(self.PROPERTIES),'--',unit]
+            process=subprocess.Popen(argv,stdin=subprocess.DEVNULL,stdout=subprocess.PIPE,stderr=subprocess.PIPE,
+                env={'PATH':'/usr/bin:/bin','LANG':'C'},start_new_session=True,pass_fds=(executable_fd,))
+        finally: os.close(executable_fd)
+        output=bytearray()
+        byte_count=0
+        try:
+            with selectors.DefaultSelector() as selector:
+                selector.register(process.stdout,selectors.EVENT_READ,'stdout')
+                selector.register(process.stderr,selectors.EVENT_READ,'stderr')
+                while selector.get_map():
+                    remaining=stop_at-time.monotonic()
+                    if remaining<=0: raise HostError('HOST_OPERATION_TIMEOUT')
+                    for event,_mask in selector.select(remaining):
+                        chunk=os.read(event.fileobj.fileno(),4096)
+                        if not chunk:
+                            selector.unregister(event.fileobj)
+                            continue
+                        byte_count+=len(chunk)
+                        if byte_count>65536: raise HostError('HOST_RESPONSE_TOO_LARGE')
+                        if event.data=='stdout': output.extend(chunk)
+            process.wait(timeout=max(0.001,stop_at-time.monotonic()))
+        except (HostError,subprocess.TimeoutExpired) as exc:
+            try: os.killpg(process.pid,signal.SIGKILL)
+            except ProcessLookupError: pass
+            process.wait()
+            if isinstance(exc,HostError): raise
+            raise HostError('HOST_OPERATION_TIMEOUT') from exc
+        finally:
+            process.stdout.close()
+            process.stderr.close()
+        if process.returncode != 0:
+            raise HostError('HOST_STATUS_UNAVAILABLE')
+        try: out=output.decode('utf-8')
+        except UnicodeDecodeError as exc: raise HostError('HOST_OBSERVATION_INVALID') from exc
+        properties = {}
+        for line in out.splitlines():
+            key, sep, value = line.partition('=')
+            if sep and key in self.PROPERTIES:
+                if key in properties:
+                    raise HostError('HOST_DUPLICATE_PROPERTY')
+                properties[key] = value
+        if set(properties) != set(self.PROPERTIES) or properties['Id'] != unit:
+            raise HostError('HOST_OBSERVATION_INCOMPLETE')
+        if not properties['MainPID'].isdigit():
+            raise HostError('HOST_OBSERVATION_INVALID')
+        return {'operation':'service-status', 'tenant_id':tenant_id, 'component_id':component_id, 'environment':environment,
+                'unit':unit, 'healthy':properties['ActiveState'] == 'active',
+                'properties':properties, 'observed_at':time.time(), 'source':'systemd.show'}

active-runtime/app/aios_baseline/lineage.py

@@ -0,0 +1,650 @@
+"""Persistent correlation relationships for the AIOS baseline.
+
+This is deliberately a relationship authority.  It does not create or advance
+Tasks, Jobs, Releases, or Deployments.  In particular, a Task is admitted only
+after the configured Task authority returns the real Task and its authenticated
+tenant/subject binding has been checked.
+"""
+
+from __future__ import annotations
+
+from dataclasses import asdict, dataclass, is_dataclass
+from datetime import datetime, timezone
+import json
+from pathlib import Path
+import sqlite3
+from typing import Any, Callable, Mapping
+
+
+class LineageError(RuntimeError):
+    """Base class for persistent lineage failures."""
+
+
+class LineageConflict(LineageError):
+    """An opaque identity was already bound to different lineage."""
+
+
+class LineageVerificationError(LineageError):
+    """An external authority did not verify the requested relationship."""
+
+
+@dataclass(frozen=True)
+class VerifiedAcceptanceEvidence:
+    """Typed output of a configured acceptance evidence verifier."""
+
+    acceptance_id: str
+    tenant_id: str
+    subject_id: str
+    component_id: str
+    deployment_id: str
+    release_id: str
+    artifact: Any
+    accepted: bool
+    evidence_id: str
+    observed: Mapping[str, Any] | None = None
+    observed_at: str | None = None
+
+
+def _now() -> str:
+    return datetime.now(timezone.utc).isoformat()
+
+
+def _required(value: Any, name: str) -> str:
+    text = str(value or "")
+    if not text or len(text) > 512 or any(ord(char) < 32 for char in text):
+        raise ValueError(f"invalid {name}")
+    return text
+
+
+def _json(value: Any) -> str:
+    return json.dumps(value, ensure_ascii=False, sort_keys=True, separators=(",", ":"), allow_nan=False)
+
+
+_SELF_HASH_FIELDS = {
+    "manifest_sha256",
+    "manifest_hash",
+    "outer_manifest_hash",
+    "outer_manifest_sha256",
+    "self_hash",
+    "self_sha256",
+}
+
+
+def canonical_artifact(artifact: Any) -> str:
+    """Return an exact artifact identity without permitting outer self-hashes."""
+
+    if not isinstance(artifact, (str, Mapping)):
+        raise ValueError("artifact must be a string or object")
+    if isinstance(artifact, str):
+        _required(artifact, "artifact")
+    else:
+        if not artifact:
+            raise ValueError("artifact must not be empty")
+        if any(not isinstance(key,str) for key in artifact):
+            raise ValueError("artifact object keys must be strings")
+        if _SELF_HASH_FIELDS.intersection(key.lower() for key in artifact):
+            raise ValueError("outer artifact manifest must not contain a self hash")
+    try:
+        return _json(artifact)
+    except (TypeError, ValueError) as exc:
+        raise ValueError("artifact must be canonical JSON") from exc
+
+
+def decode_artifact(value: str) -> Any:
+    return json.loads(value)
+
+
+def _mapping(value: Any) -> Mapping[str, Any]:
+    if isinstance(value, Mapping):
+        return value
+    if is_dataclass(value):
+        return asdict(value)
+    converter = getattr(value, "to_dict", None)
+    if not callable(converter):
+        converter = getattr(value, "as_dict", None)
+    if callable(converter):
+        try:
+            converted = converter(redact_payload=False)
+        except TypeError:
+            converted = converter()
+        if isinstance(converted, Mapping):
+            return converted
+    raise LineageVerificationError("task_authority returned an invalid Task")
+
+
+def _task_plan(task: Any) -> tuple[Mapping[str, Any], Mapping[str, Any]]:
+    raw = _mapping(task)
+    plan: Any = raw.get("plan") or raw.get("task_plan")
+    if plan is None and hasattr(task, "task_plan"):
+        plan = getattr(task, "task_plan")
+    if plan is None:
+        plan = raw
+    plan_map = _mapping(plan)
+    return raw, plan_map
+
+
+class LineageLedger:
+    """SQLite-backed authority for cross-domain identity relationships."""
+
+    def __init__(self, path: str | Path, task_authority: Any, job_authority: Any):
+        if task_authority is None:
+            raise ValueError("task_authority is required")
+        if job_authority is None:
+            raise ValueError("job_authority is required")
+        self.path = str(path)
+        self.task_authority = task_authority
+        self.job_authority = job_authority
+        Path(self.path).parent.mkdir(parents=True, exist_ok=True)
+        self._initialize()
+
+    def _connect(self) -> sqlite3.Connection:
+        connection = sqlite3.connect(self.path, timeout=30)
+        connection.row_factory = sqlite3.Row
+        connection.execute("PRAGMA foreign_keys=ON")
+        connection.execute("PRAGMA busy_timeout=30000")
+        return connection
+
+    def _initialize(self) -> None:
+        with self._connect() as connection:
+            connection.execute("PRAGMA journal_mode=WAL")
+            tables={row[0] for row in connection.execute("SELECT name FROM sqlite_master WHERE type='table'")}
+            if "lineage_tasks" in tables and "lineage_schema_meta" not in tables:
+                raise LineageConflict("unversioned candidate lineage schema requires explicit migration")
+            if "lineage_schema_meta" in tables:
+                version=connection.execute("SELECT version FROM lineage_schema_meta WHERE domain='lineage'").fetchone()
+                if version is None or version[0] != 2:
+                    raise LineageConflict("unsupported lineage schema version")
+            connection.executescript(
+                """
+                CREATE TABLE IF NOT EXISTS lineage_schema_meta (
+                    domain TEXT PRIMARY KEY,
+                    version INTEGER NOT NULL
+                );
+                CREATE TABLE IF NOT EXISTS lineage_tasks (
+                    tenant_id TEXT NOT NULL,
+                    task_id TEXT NOT NULL,
+                    subject_id TEXT NOT NULL,
+                    mission_id TEXT NOT NULL,
+                    component_id TEXT NOT NULL,
+                    grant_id TEXT NOT NULL,
+                    source_task_id TEXT,
+                    metadata_json TEXT NOT NULL,
+                    created_at TEXT NOT NULL,
+                    PRIMARY KEY (tenant_id, task_id),
+                    UNIQUE (tenant_id, task_id, subject_id, mission_id, component_id, grant_id),
+                    FOREIGN KEY (tenant_id, source_task_id)
+                      REFERENCES lineage_tasks(tenant_id, task_id)
+                );
+                CREATE TABLE IF NOT EXISTS lineage_effects (
+                    tenant_id TEXT NOT NULL,
+                    effect_id TEXT NOT NULL,
+                    subject_id TEXT NOT NULL,
+                    mission_id TEXT NOT NULL,
+                    component_id TEXT NOT NULL,
+                    grant_id TEXT NOT NULL,
+                    task_id TEXT NOT NULL,
+                    job_id TEXT NOT NULL,
+                    source_effect_id TEXT,
+                    metadata_json TEXT NOT NULL,
+                    created_at TEXT NOT NULL,
+                    PRIMARY KEY (tenant_id, effect_id),
+                    UNIQUE (tenant_id, job_id),
+                    UNIQUE (tenant_id, effect_id, subject_id, mission_id, component_id),
+                    UNIQUE (tenant_id, effect_id, subject_id, mission_id, component_id, grant_id),
+                    FOREIGN KEY (tenant_id, task_id, subject_id, mission_id, component_id, grant_id)
+                      REFERENCES lineage_tasks(tenant_id, task_id, subject_id, mission_id, component_id, grant_id),
+                    FOREIGN KEY (tenant_id, source_effect_id, subject_id, mission_id, component_id)
+                      REFERENCES lineage_effects(tenant_id, effect_id, subject_id, mission_id, component_id)
+                );
+                CREATE TABLE IF NOT EXISTS lineage_releases (
+                    tenant_id TEXT NOT NULL,
+                    release_id TEXT NOT NULL,
+                    subject_id TEXT NOT NULL,
+                    mission_id TEXT NOT NULL,
+                    component_id TEXT NOT NULL,
+                    grant_id TEXT NOT NULL,
+                    effect_id TEXT NOT NULL,
+                    source_task_id TEXT NOT NULL,
+                    source_effect_id TEXT NOT NULL,
+                    artifact_json TEXT NOT NULL,
+                    metadata_json TEXT NOT NULL,
+                    created_at TEXT NOT NULL,
+                    PRIMARY KEY (tenant_id, release_id),
+                    UNIQUE (tenant_id, effect_id),
+                    UNIQUE (tenant_id, release_id, subject_id, mission_id, component_id, artifact_json),
+                    FOREIGN KEY (tenant_id, effect_id, subject_id, mission_id, component_id, grant_id)
+                      REFERENCES lineage_effects(tenant_id, effect_id, subject_id, mission_id, component_id, grant_id),
+                    FOREIGN KEY (tenant_id, source_task_id, subject_id, mission_id, component_id, grant_id)
+                      REFERENCES lineage_tasks(tenant_id, task_id, subject_id, mission_id, component_id, grant_id)
+                );
+                CREATE TABLE IF NOT EXISTS lineage_deployments (
+                    tenant_id TEXT NOT NULL,
+                    deployment_id TEXT NOT NULL,
+                    subject_id TEXT NOT NULL,
+                    mission_id TEXT NOT NULL,
+                    component_id TEXT NOT NULL,
+                    release_id TEXT NOT NULL,
+                    environment TEXT NOT NULL,
+                    target_revision INTEGER NOT NULL,
+                    artifact_json TEXT NOT NULL,
+                    metadata_json TEXT NOT NULL,
+                    created_at TEXT NOT NULL,
+                    PRIMARY KEY (tenant_id, deployment_id),
+                    UNIQUE (tenant_id, deployment_id, subject_id, mission_id, component_id, release_id, artifact_json),
+                    FOREIGN KEY (tenant_id, release_id, subject_id, mission_id, component_id, artifact_json)
+                      REFERENCES lineage_releases(tenant_id, release_id, subject_id, mission_id, component_id, artifact_json)
+                );
+                CREATE TABLE IF NOT EXISTS lineage_acceptances (
+                    tenant_id TEXT NOT NULL,
+                    acceptance_id TEXT NOT NULL,
+                    subject_id TEXT NOT NULL,
+                    mission_id TEXT NOT NULL,
+                    component_id TEXT NOT NULL,
+                    deployment_id TEXT NOT NULL,
+                    release_id TEXT NOT NULL,
+                    artifact_json TEXT NOT NULL,
+                    accepted INTEGER NOT NULL CHECK (accepted IN (0,1)),
+                    evidence_id TEXT NOT NULL,
+                    evidence_json TEXT NOT NULL,
+                    created_at TEXT NOT NULL,
+                    PRIMARY KEY (tenant_id, acceptance_id),
+                    FOREIGN KEY (tenant_id, deployment_id, subject_id, mission_id, component_id, release_id, artifact_json)
+                      REFERENCES lineage_deployments(
+                        tenant_id, deployment_id, subject_id, mission_id, component_id, release_id, artifact_json
+                      )
+                );
+                """
+            )
+            connection.execute("INSERT OR IGNORE INTO lineage_schema_meta(domain,version) VALUES('lineage',2)")
+
+    def close(self) -> None:
+        """Compatibility hook; connections are transaction-scoped."""
+
+    def _authorized_task(self, tenant_id: str, subject_id: str, task_id: str) -> Any:
+        authority = self.task_authority
+        try:
+            if hasattr(authority, "get_task"):
+                task = authority.get_task(task_id)
+            elif callable(authority):
+                try:
+                    task = authority(tenant_id, subject_id, task_id)
+                except TypeError:
+                    task = authority(task_id)
+            else:
+                raise TypeError("authority has no task lookup")
+        except Exception as exc:
+            raise LineageVerificationError("task_authority did not confirm task") from exc
+        raw, plan = _task_plan(task)
+        returned_id = raw.get("task_id") or plan.get("task_id") or getattr(task, "task_id", None)
+        if str(returned_id or "") != task_id:
+            raise LineageVerificationError("task_authority returned wrong task_id")
+        issuer = plan.get("issuer") if isinstance(plan.get("issuer"), Mapping) else {}
+        metadata = plan.get("metadata") if isinstance(plan.get("metadata"), Mapping) else {}
+        baseline = metadata.get("baseline") if isinstance(metadata.get("baseline"), Mapping) else {}
+        tenant_values = [value for value in (issuer.get("tenant_id"), metadata.get("tenant_id"), baseline.get("tenant_id")) if value is not None]
+        subject_values = [
+            value for value in (issuer.get("subject_id"), metadata.get("subject_id"), baseline.get("subject_id")) if value is not None
+        ]
+        # issuer.id is accepted as subject identity only when no explicit subject_id exists.
+        if not subject_values and issuer.get("id") is not None:
+            subject_values.append(issuer["id"])
+        if not tenant_values or any(str(value) != tenant_id for value in tenant_values):
+            raise LineageVerificationError("task_authority tenant mismatch")
+        if not subject_values or any(str(value) != subject_id for value in subject_values):
+            raise LineageVerificationError("task_authority subject mismatch")
+        return task
+
+    def _authorized_job(
+        self, tenant_id: str, subject_id: str, mission_id: str, grant_id: str,
+        task_id: str, effect_id: str, job_id: str,
+    ) -> None:
+        authority=self.job_authority
+        try:
+            if hasattr(authority,"get_job"):
+                job=authority.get_job(job_id)
+            elif hasattr(authority,"read"):
+                job=authority.read(job_id)
+            elif callable(authority):
+                job=authority(job_id)
+            else:
+                raise TypeError("authority has no Job lookup")
+        except Exception as exc:
+            raise LineageVerificationError("job_authority did not confirm Job") from exc
+        raw=_mapping(job)
+        request=raw.get("request") or raw.get("binding")
+        if request is None and isinstance(raw.get("request_json"),str):
+            try:
+                request=json.loads(raw["request_json"])
+            except json.JSONDecodeError as exc:
+                raise LineageVerificationError("job_authority returned invalid request") from exc
+        if not isinstance(request,Mapping):
+            request=raw
+        if isinstance(request.get("binding"),Mapping):
+            request=request["binding"]
+        bindings={
+            "job_id":raw.get("job_id") or request.get("job_id"),
+            "tenant_id":request.get("tenant_id"),"subject_id":request.get("subject_id"),
+            "mission_id":request.get("mission_id"),"grant_id":request.get("grant_id"),
+            "task_id":request.get("task_id"),"effect_id":request.get("effect_id"),
+        }
+        expected={"job_id":job_id,"tenant_id":tenant_id,"subject_id":subject_id,
+                  "mission_id":mission_id,"grant_id":grant_id,"task_id":task_id,"effect_id":effect_id}
+        if any(str(bindings[key] or "") != value for key,value in expected.items()):
+            raise LineageVerificationError("job_authority binding mismatch")
+
+    @staticmethod
+    def _check_task_context(task: Any, mission_id: str, grant_id: str) -> None:
+        _, plan = _task_plan(task)
+        metadata = plan.get("metadata") if isinstance(plan.get("metadata"), Mapping) else {}
+        baseline = metadata.get("baseline") if isinstance(metadata.get("baseline"), Mapping) else {}
+        mission_values = [value for value in (metadata.get("mission_id"), baseline.get("mission_id")) if value is not None]
+        grant_values = [value for value in (metadata.get("grant_id"), baseline.get("grant_id")) if value is not None]
+        if any(str(value) != mission_id for value in mission_values):
+            raise LineageVerificationError("task_authority mission mismatch")
+        if any(str(value) != grant_id for value in grant_values):
+            raise LineageVerificationError("task_authority grant mismatch")
+
+    @staticmethod
+    def _task_component(task: Any, requested: str | None) -> str:
+        _, plan = _task_plan(task)
+        metadata = plan.get("metadata") if isinstance(plan.get("metadata"), Mapping) else {}
+        baseline = metadata.get("baseline") if isinstance(metadata.get("baseline"), Mapping) else {}
+        values=[value for value in (metadata.get("component_id"),baseline.get("component_id")) if value is not None]
+        if requested is not None:
+            requested=_required(requested,"component_id")
+            if any(str(value) != requested for value in values):
+                raise LineageVerificationError("task_authority component mismatch")
+            return requested
+        if not values or any(str(value) != str(values[0]) for value in values):
+            raise LineageVerificationError("task_authority component missing or inconsistent")
+        return _required(values[0],"component_id")
+
+    def link_task(
+        self,
+        tenant_id: str,
+        subject_id: str,
+        mission_id: str,
+        grant_id: str,
+        task_id: str,
+        *,
+        component_id: str | None = None,
+        source_task_id: str | None = None,
+        metadata: Mapping[str, Any] | None = None,
+    ) -> dict[str, Any]:
+        tenant_id, subject_id, mission_id, grant_id, task_id = (
+            _required(tenant_id, "tenant_id"), _required(subject_id, "subject_id"),
+            _required(mission_id, "mission_id"), _required(grant_id, "grant_id"),
+            _required(task_id, "task_id"),
+        )
+        task = self._authorized_task(tenant_id, subject_id, task_id)
+        self._check_task_context(task, mission_id, grant_id)
+        component_id=self._task_component(task,component_id)
+        source_task_id = _required(source_task_id, "source_task_id") if source_task_id else None
+        raw_task, task_plan = _task_plan(task)
+        authoritative_source = task_plan.get("parent_task_id") or raw_task.get("parent_task_id")
+        if authoritative_source is not None:
+            authoritative_source = _required(authoritative_source, "authoritative source_task_id")
+            if source_task_id is not None and source_task_id != authoritative_source:
+                raise LineageVerificationError("source_task_id does not match Task authority")
+            source_task_id = authoritative_source
+        metadata_json = _json(dict(metadata or {}))
+        values = (subject_id, mission_id, component_id, grant_id, source_task_id)
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            existing = connection.execute(
+                "SELECT * FROM lineage_tasks WHERE tenant_id=? AND task_id=?", (tenant_id, task_id)
+            ).fetchone()
+            if existing:
+                if tuple(existing[key] for key in ("subject_id", "mission_id", "component_id", "grant_id", "source_task_id")) != values:
+                    raise LineageConflict("task_id already has different lineage")
+                return self._task_row(existing)
+            if source_task_id:
+                self._require_row(connection, "lineage_tasks", "task_id", tenant_id, source_task_id, subject_id, mission_id, component_id)
+            connection.execute(
+                "INSERT INTO lineage_tasks VALUES(?,?,?,?,?,?,?,?,?)",
+                (tenant_id, task_id, subject_id, mission_id, component_id, grant_id, source_task_id, metadata_json, _now()),
+            )
+            row = connection.execute(
+                "SELECT * FROM lineage_tasks WHERE tenant_id=? AND task_id=?", (tenant_id, task_id)
+            ).fetchone()
+            return self._task_row(row)
+
+    @staticmethod
+    def _require_row(connection, table, id_column, tenant_id, object_id, subject_id, mission_id, component_id=None):
+        row = connection.execute(
+            f"SELECT * FROM {table} WHERE tenant_id=? AND {id_column}=?", (tenant_id, object_id)
+        ).fetchone()
+        if row is None:
+            raise LineageConflict(f"{id_column} has no linked authority record")
+        if row["subject_id"] != subject_id or row["mission_id"] != mission_id:
+            raise LineageConflict(f"{id_column} belongs to different subject or mission")
+        if component_id is not None and row["component_id"] != component_id:
+            raise LineageConflict(f"{id_column} belongs to different component")
+        return row
+
+    def link_effect(
+        self, tenant_id: str, subject_id: str, mission_id: str, task_id: str,
+        effect_id: str, job_id: str, *, source_effect_id: str | None = None,
+        metadata: Mapping[str, Any] | None = None,
+    ) -> dict[str, Any]:
+        tenant_id, subject_id, mission_id, task_id, effect_id, job_id = map(
+            lambda pair: _required(pair[0], pair[1]),
+            ((tenant_id,"tenant_id"),(subject_id,"subject_id"),(mission_id,"mission_id"),
+             (task_id,"task_id"),(effect_id,"effect_id"),(job_id,"job_id")),
+        )
+        source_effect_id = _required(source_effect_id, "source_effect_id") if source_effect_id else None
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            task=self._require_row(connection, "lineage_tasks", "task_id", tenant_id, task_id, subject_id, mission_id)
+            component_id=task["component_id"]
+            grant_id=task["grant_id"]
+            self._authorized_job(tenant_id,subject_id,mission_id,grant_id,task_id,effect_id,job_id)
+            existing = connection.execute(
+                "SELECT * FROM lineage_effects WHERE tenant_id=? AND effect_id=?", (tenant_id, effect_id)
+            ).fetchone()
+            expected = (subject_id, mission_id, component_id, grant_id, task_id, job_id, source_effect_id)
+            if existing:
+                actual = tuple(existing[key] for key in ("subject_id","mission_id","component_id","grant_id","task_id","job_id","source_effect_id"))
+                if actual != expected:
+                    raise LineageConflict("effect_id already has different task/job identity")
+                return self._effect_row(existing)
+            job = connection.execute(
+                "SELECT effect_id,task_id,subject_id FROM lineage_effects WHERE tenant_id=? AND job_id=?",
+                (tenant_id, job_id),
+            ).fetchone()
+            if job:
+                raise LineageConflict("job_id already belongs to exactly one Task/effect")
+            if source_effect_id:
+                self._require_row(connection, "lineage_effects", "effect_id", tenant_id, source_effect_id, subject_id, mission_id, component_id)
+            connection.execute(
+                "INSERT INTO lineage_effects VALUES(?,?,?,?,?,?,?,?,?,?,?)",
+                (tenant_id,effect_id,subject_id,mission_id,component_id,grant_id,task_id,job_id,source_effect_id,_json(dict(metadata or {})),_now()),
+            )
+            row = connection.execute("SELECT * FROM lineage_effects WHERE tenant_id=? AND effect_id=?",(tenant_id,effect_id)).fetchone()
+            return self._effect_row(row)
+
+    def link_release(
+        self, tenant_id: str, subject_id: str, mission_id: str, effect_id: str,
+        release_id: str, artifact: Any, *, metadata: Mapping[str, Any] | None = None,
+    ) -> dict[str, Any]:
+        tenant_id, subject_id, mission_id, effect_id, release_id = map(
+            lambda pair: _required(pair[0],pair[1]),
+            ((tenant_id,"tenant_id"),(subject_id,"subject_id"),(mission_id,"mission_id"),
+             (effect_id,"effect_id"),(release_id,"release_id")),
+        )
+        artifact_json = canonical_artifact(artifact)
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            effect = self._require_row(connection,"lineage_effects","effect_id",tenant_id,effect_id,subject_id,mission_id)
+            existing = connection.execute("SELECT * FROM lineage_releases WHERE tenant_id=? AND release_id=?",(tenant_id,release_id)).fetchone()
+            expected = (subject_id,mission_id,effect["component_id"],effect["grant_id"],effect_id,effect["task_id"],effect_id,artifact_json)
+            if existing:
+                actual = tuple(existing[key] for key in ("subject_id","mission_id","component_id","grant_id","effect_id","source_task_id","source_effect_id","artifact_json"))
+                if actual != expected:
+                    raise LineageConflict("release_id already has different source lineage")
+                return self._release_row(existing)
+            producer = connection.execute("SELECT release_id FROM lineage_releases WHERE tenant_id=? AND effect_id=?",(tenant_id,effect_id)).fetchone()
+            if producer:
+                raise LineageConflict("release-producing effect already points to a unique release")
+            connection.execute(
+                "INSERT INTO lineage_releases VALUES(?,?,?,?,?,?,?,?,?,?,?,?)",
+                (tenant_id,release_id,subject_id,mission_id,effect["component_id"],effect["grant_id"],effect_id,effect["task_id"],effect_id,artifact_json,_json(dict(metadata or {})),_now()),
+            )
+            row=connection.execute("SELECT * FROM lineage_releases WHERE tenant_id=? AND release_id=?",(tenant_id,release_id)).fetchone()
+            return self._release_row(row)
+
+    def link_deployment(
+        self, tenant_id: str, subject_id: str, mission_id: str, release_id: str,
+        deployment_id: str, component_id: str, environment: str, target_revision: int, artifact: Any,
+        *, metadata: Mapping[str, Any] | None = None,
+    ) -> dict[str, Any]:
+        tenant_id,subject_id,mission_id,release_id,deployment_id,component_id,environment=map(
+            lambda pair:_required(pair[0],pair[1]),
+            ((tenant_id,"tenant_id"),(subject_id,"subject_id"),(mission_id,"mission_id"),
+             (release_id,"release_id"),(deployment_id,"deployment_id"),(component_id,"component_id"),(environment,"environment")),
+        )
+        if not isinstance(target_revision,int) or isinstance(target_revision,bool) or target_revision < 1:
+            raise ValueError("invalid target_revision")
+        artifact_json=canonical_artifact(artifact)
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            release=self._require_row(connection,"lineage_releases","release_id",tenant_id,release_id,subject_id,mission_id,component_id)
+            if release["artifact_json"] != artifact_json:
+                raise LineageConflict("deployment artifact does not match release")
+            existing=connection.execute("SELECT * FROM lineage_deployments WHERE tenant_id=? AND deployment_id=?",(tenant_id,deployment_id)).fetchone()
+            expected=(subject_id,mission_id,component_id,release_id,environment,target_revision,artifact_json)
+            if existing:
+                actual=tuple(existing[key] for key in ("subject_id","mission_id","component_id","release_id","environment","target_revision","artifact_json"))
+                if actual != expected:
+                    raise LineageConflict("deployment_id already has different release identity")
+                return self._deployment_row(existing)
+            connection.execute(
+                "INSERT INTO lineage_deployments VALUES(?,?,?,?,?,?,?,?,?,?,?)",
+                (tenant_id,deployment_id,subject_id,mission_id,component_id,release_id,environment,target_revision,artifact_json,_json(dict(metadata or {})),_now()),
+            )
+            row=connection.execute("SELECT * FROM lineage_deployments WHERE tenant_id=? AND deployment_id=?",(tenant_id,deployment_id)).fetchone()
+            return self._deployment_row(row)
+
+    def record_acceptance(
+        self, tenant_id: str, subject_id: str, mission_id: str, component_id: str, acceptance_id: str,
+        deployment_id: str, release_id: str, artifact: Any, accepted: bool, *,
+        evidence: Any, verifier: Callable[[Any, Mapping[str, Any]], VerifiedAcceptanceEvidence],
+    ) -> dict[str, Any]:
+        if not callable(verifier):
+            raise LineageVerificationError("acceptance verifier is required")
+        tenant_id,subject_id,mission_id,component_id,acceptance_id,deployment_id,release_id=map(
+            lambda pair:_required(pair[0],pair[1]),
+            ((tenant_id,"tenant_id"),(subject_id,"subject_id"),(mission_id,"mission_id"),(component_id,"component_id"),
+             (acceptance_id,"acceptance_id"),(deployment_id,"deployment_id"),(release_id,"release_id")),
+        )
+        if type(accepted) is not bool:
+            raise ValueError("accepted must be boolean")
+        artifact_json=canonical_artifact(artifact)
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            deployment=self._require_row(connection,"lineage_deployments","deployment_id",tenant_id,deployment_id,subject_id,mission_id,component_id)
+            if deployment["release_id"] != release_id:
+                raise LineageConflict("acceptance release_id does not match deployment")
+            if deployment["artifact_json"] != artifact_json:
+                raise LineageConflict("acceptance artifact does not match deployment")
+            expected={"acceptance_id":acceptance_id,"tenant_id":tenant_id,"subject_id":subject_id,"component_id":component_id,
+                      "deployment_id":deployment_id,"release_id":release_id,"artifact":decode_artifact(artifact_json),
+                      "accepted":accepted}
+            try:
+                verified=verifier(evidence,expected)
+            except Exception as exc:
+                raise LineageVerificationError("acceptance evidence was not verified") from exc
+            if not isinstance(verified,VerifiedAcceptanceEvidence):
+                raise LineageVerificationError("verifier must return VerifiedAcceptanceEvidence")
+            bindings=(verified.acceptance_id,verified.tenant_id,verified.subject_id,verified.component_id,verified.deployment_id,verified.release_id,canonical_artifact(verified.artifact),verified.accepted)
+            if bindings != (acceptance_id,tenant_id,subject_id,component_id,deployment_id,release_id,artifact_json,accepted):
+                raise LineageVerificationError("verified acceptance evidence binding mismatch")
+            evidence_id=_required(verified.evidence_id,"evidence_id")
+            evidence_json=_json({
+                "evidence_id":evidence_id,
+                "observed":dict(verified.observed or {}),
+                "observed_at":verified.observed_at,
+                "signed_envelope":dict(evidence) if isinstance(evidence,Mapping) else None,
+            })
+            existing=connection.execute("SELECT * FROM lineage_acceptances WHERE tenant_id=? AND acceptance_id=?",(tenant_id,acceptance_id)).fetchone()
+            expected_row=(subject_id,mission_id,component_id,deployment_id,release_id,artifact_json,int(accepted),evidence_id,evidence_json)
+            if existing:
+                actual=tuple(existing[key] for key in ("subject_id","mission_id","component_id","deployment_id","release_id","artifact_json","accepted","evidence_id","evidence_json"))
+                if actual != expected_row:
+                    raise LineageConflict("acceptance_id already has different binding")
+                return self._acceptance_row(existing)
+            connection.execute(
+                "INSERT INTO lineage_acceptances VALUES(?,?,?,?,?,?,?,?,?,?,?,?)",
+                (tenant_id,acceptance_id,subject_id,mission_id,component_id,deployment_id,release_id,artifact_json,int(accepted),evidence_id,evidence_json,_now()),
+            )
+            row=connection.execute("SELECT * FROM lineage_acceptances WHERE tenant_id=? AND acceptance_id=?",(tenant_id,acceptance_id)).fetchone()
+            return self._acceptance_row(row)
+
+    def explain(self, tenant_id: str, subject_id: str, mission_id: str) -> dict[str, Any]:
+        tenant_id,subject_id,mission_id=(_required(tenant_id,"tenant_id"),_required(subject_id,"subject_id"),_required(mission_id,"mission_id"))
+        specs=(("tasks","lineage_tasks",self._task_row),("effects","lineage_effects",self._effect_row),
+               ("releases","lineage_releases",self._release_row),("deployments","lineage_deployments",self._deployment_row),
+               ("acceptances","lineage_acceptances",self._acceptance_row))
+        result={"tenant_id":tenant_id,"subject_id":subject_id,"mission_id":mission_id}
+        with self._connect() as connection:
+            for key,table,converter in specs:
+                rows=connection.execute(f"SELECT * FROM {table} WHERE tenant_id=? AND subject_id=? AND mission_id=? ORDER BY created_at",(tenant_id,subject_id,mission_id)).fetchall()
+                result[key]=[converter(row) for row in rows]
+        return result
+
+    def get_release(self, tenant_id: str, subject_id: str, release_id: str) -> dict[str, Any]:
+        """Resolve an exact tenant/subject release without disclosing other scopes."""
+
+        tenant_id, subject_id, release_id = (
+            _required(tenant_id, "tenant_id"), _required(subject_id, "subject_id"),
+            _required(release_id, "release_id"),
+        )
+        with self._connect() as connection:
+            row = connection.execute(
+                "SELECT * FROM lineage_releases WHERE tenant_id=? AND release_id=? AND subject_id=?",
+                (tenant_id, release_id, subject_id),
+            ).fetchone()
+        if row is None:
+            raise KeyError("release lineage not found")
+        return self._release_row(row)
+
+    def get_release_for_component(self, tenant_id: str, component_id: str, release_id: str) -> dict[str, Any]:
+        tenant_id,component_id,release_id=(_required(tenant_id,"tenant_id"),_required(component_id,"component_id"),_required(release_id,"release_id"))
+        with self._connect() as connection:
+            row=connection.execute(
+                "SELECT * FROM lineage_releases WHERE tenant_id=? AND release_id=? AND component_id=?",
+                (tenant_id,release_id,component_id),
+            ).fetchone()
+        if row is None:
+            raise KeyError("release component lineage not found")
+        return self._release_row(row)
+
+    @staticmethod
+    def _common(row):
+        return {key:row[key] for key in row.keys() if not key.endswith("_json")}
+
+    @classmethod
+    def _task_row(cls,row):
+        value=cls._common(row); value["metadata"]=json.loads(row["metadata_json"]); return value
+
+    @classmethod
+    def _effect_row(cls,row):
+        value=cls._common(row); value["metadata"]=json.loads(row["metadata_json"]); return value
+
+    @classmethod
+    def _release_row(cls,row):
+        value=cls._common(row); value["artifact"]=decode_artifact(row["artifact_json"]); value["metadata"]=json.loads(row["metadata_json"]); return value
+
+    @classmethod
+    def _deployment_row(cls,row):
+        value=cls._common(row); value["artifact"]=decode_artifact(row["artifact_json"]); value["metadata"]=json.loads(row["metadata_json"]); return value
+
+    @classmethod
+    def _acceptance_row(cls,row):
+        value=cls._common(row); value["artifact"]=decode_artifact(row["artifact_json"]); value["accepted"]=bool(row["accepted"]); value["evidence"]=json.loads(row["evidence_json"]); return value
+
+
+__all__ = [
+    "LineageConflict", "LineageError", "LineageLedger", "LineageVerificationError",
+    "VerifiedAcceptanceEvidence", "canonical_artifact", "decode_artifact",
+]

active-runtime/app/aios_baseline/operations.py

@@ -0,0 +1,258 @@
+"""Declarative, non-executing operation registry and timeout safety rules."""
+from __future__ import annotations
+
+from copy import deepcopy
+from dataclasses import dataclass
+from datetime import datetime, timezone
+import math
+import re
+from typing import Any, Iterable, Mapping, Sequence
+
+
+EFFECT_CLASSES = frozenset(
+    {"READ_ONLY", "IDEMPOTENT", "CONDITIONAL", "RECONCILABLE", "IRREVERSIBLE"}
+)
+_FORBIDDEN_EXECUTION_FIELDS = frozenset({"command", "shell", "argv", "executable", "script"})
+_HANDLER_REF = re.compile(r"^[A-Za-z][A-Za-z0-9_.:-]{0,126}$")
+
+
+def _invalid(code: str, field: str = "") -> ValueError:
+    return ValueError(f"{code}:{field}" if field else code)
+
+
+def _text(value: object, field: str) -> str:
+    if not isinstance(value, str) or not value.strip():
+        raise _invalid("field_invalid", field)
+    return value.strip()
+
+
+def _policy(value: object, field: str, allowed_modes: set[str]) -> dict[str, Any]:
+    if not isinstance(value, Mapping):
+        raise _invalid("policy_invalid", field)
+    result = deepcopy(dict(value))
+    mode = _text(result.get("mode"), f"{field}.mode").upper()
+    if mode not in allowed_modes:
+        raise _invalid("policy_mode_invalid", f"{field}.mode")
+    result["mode"] = mode
+    return result
+
+
+@dataclass(frozen=True, slots=True)
+class OperationDefinition:
+    operation_id: str
+    version: int | str
+    effect_class: str
+    handler_ref: str
+    input_schema: str | Mapping[str, Any]
+    required_permissions: tuple[str, ...]
+    timeout_seconds: float
+    readback: Mapping[str, Any]
+    retry: Mapping[str, Any]
+    reconcile: Mapping[str, Any]
+    rollback: Mapping[str, Any]
+    owner_boundary: Mapping[str, Any]
+
+    @classmethod
+    def from_dict(cls, data: Mapping[str, Any]) -> "OperationDefinition":
+        if not isinstance(data, Mapping):
+            raise _invalid("operation_definition_invalid")
+        forbidden = sorted(_FORBIDDEN_EXECUTION_FIELDS.intersection(data))
+        if forbidden:
+            raise _invalid("arbitrary_execution_forbidden", forbidden[0])
+        operation_id = _text(data.get("operation_id"), "operation_id")
+        version = data.get("version")
+        if (
+            isinstance(version, bool)
+            or not isinstance(version, (int, str))
+            or (isinstance(version, int) and version < 1)
+            or (isinstance(version, str) and not version.strip())
+        ):
+            raise _invalid("field_invalid", "version")
+        effect_class = _text(data.get("effect_class"), "effect_class").upper()
+        if effect_class not in EFFECT_CLASSES:
+            raise _invalid("effect_class_invalid", "effect_class")
+        handler_ref = _text(data.get("handler_ref", data.get("handler")), "handler_ref")
+        if not _HANDLER_REF.fullmatch(handler_ref):
+            raise _invalid("handler_ref_invalid", "handler_ref")
+        input_schema = data.get("input_schema")
+        if not isinstance(input_schema, (str, Mapping)) or not input_schema:
+            raise _invalid("field_invalid", "input_schema")
+        input_schema = deepcopy(input_schema)
+        permissions = data.get("required_permissions", data.get("permissions"))
+        if not isinstance(permissions, Sequence) or isinstance(permissions, (str, bytes, bytearray)):
+            raise _invalid("field_invalid", "required_permissions")
+        required_permissions = tuple(
+            _text(permission, f"required_permissions[{index}]")
+            for index, permission in enumerate(permissions)
+        )
+        if len(set(required_permissions)) != len(required_permissions):
+            raise _invalid("duplicate_permission", "required_permissions")
+        timeout_seconds = data.get("timeout_seconds")
+        if (
+            isinstance(timeout_seconds, bool)
+            or not isinstance(timeout_seconds, (int, float))
+            or not math.isfinite(timeout_seconds)
+            or timeout_seconds <= 0
+        ):
+            raise _invalid("field_invalid", "timeout_seconds")
+
+        readback = _policy(data.get("readback"), "readback", {"NONE", "STATE", "EXACT"})
+        if "required" in readback and not isinstance(readback["required"], bool):
+            raise _invalid("field_invalid", "readback.required")
+        retry = _policy(
+            data.get("retry"),
+            "retry",
+            {"NEVER", "SAFE", "AFTER_READBACK", "RECONCILE_FIRST"},
+        )
+        attempts = retry.get("max_attempts", 1)
+        if isinstance(attempts, bool) or not isinstance(attempts, int) or attempts < 1:
+            raise _invalid("field_invalid", "retry.max_attempts")
+        retry["max_attempts"] = attempts
+        reconcile = _policy(
+            data.get("reconcile"), "reconcile", {"NONE", "EXACT_READBACK", "CUSTOM", "REQUIRED"}
+        )
+        rollback = _policy(
+            data.get("rollback"), "rollback", {"NONE", "OPERATION", "COMPENSATE"}
+        )
+        if rollback["mode"] == "OPERATION":
+            _text(rollback.get("operation_id"), "rollback.operation_id")
+        owner_boundary = _policy(
+            data.get("owner_boundary"),
+            "owner_boundary",
+            {"NONE", "WITHIN_GRANT", "EXPLICIT_AUTHORIZATION", "CROSS_BOUNDARY_DENIED"},
+        )
+
+        restart_operation = (
+            "service.restart" in operation_id
+            or "service-restart" in operation_id
+            or handler_ref.endswith("service_restart")
+        )
+        if restart_operation and (
+            readback["mode"] != "EXACT"
+            or not readback.get("required", False)
+            or reconcile["mode"] == "NONE"
+        ):
+            raise _invalid("service_restart_exact_readback_required")
+
+        return cls(
+            operation_id=operation_id,
+            version=version,
+            effect_class=effect_class,
+            handler_ref=handler_ref,
+            input_schema=input_schema,
+            required_permissions=required_permissions,
+            timeout_seconds=float(timeout_seconds),
+            readback=readback,
+            retry=retry,
+            reconcile=reconcile,
+            rollback=rollback,
+            owner_boundary=owner_boundary,
+        )
+
+    def timeout_action(self, outcome: str, attempts: int = 1) -> str:
+        return operation_timeout_action(self, outcome=outcome, attempts=attempts)
+
+    @property
+    def permissions(self) -> tuple[str, ...]:
+        return self.required_permissions
+
+
+class OperationRegistry:
+    """Lookup-only registry; it deliberately has no execute or shell interface."""
+
+    def __init__(self, definitions: Iterable[OperationDefinition | Mapping[str, Any]]) -> None:
+        self._definitions: dict[str, OperationDefinition] = {}
+        for raw in definitions:
+            definition = raw if isinstance(raw, OperationDefinition) else OperationDefinition.from_dict(raw)
+            if definition.operation_id in self._definitions:
+                raise _invalid("duplicate_operation_id", definition.operation_id)
+            self._definitions[definition.operation_id] = definition
+
+    def get(self, operation_id: str) -> OperationDefinition:
+        return self._definitions[_text(operation_id, "operation_id")]
+
+    @property
+    def definitions(self) -> tuple[OperationDefinition, ...]:
+        return tuple(self._definitions.values())
+
+
+def operation_timeout_action(
+    definition: OperationDefinition,
+    outcome: str = "AMBIGUOUS",
+    attempts: int = 1,
+) -> str:
+    """Return ``RETRY``, ``RECONCILE`` or ``STOP`` after a timeout.
+
+    An unknown response from a mutating sink never authorizes a blind repeat.
+    Exact readback/reconciliation must first establish whether the effect happened.
+    """
+
+    if not isinstance(definition, OperationDefinition):
+        raise _invalid("operation_definition_invalid")
+    normalized_outcome = _text(outcome, "outcome").upper()
+    if isinstance(attempts, bool) or not isinstance(attempts, int) or attempts < 1:
+        raise _invalid("field_invalid", "attempts")
+    if definition.effect_class == "IRREVERSIBLE":
+        return "STOP"
+    if definition.effect_class != "READ_ONLY" and normalized_outcome in {
+        "AMBIGUOUS",
+        "UNKNOWN",
+        "MAY_HAVE_SUCCEEDED",
+    }:
+        if definition.reconcile["mode"] != "NONE" or definition.readback.get("required", False):
+            return "RECONCILE"
+        return "STOP"
+    retry_mode = definition.retry["mode"]
+    if attempts >= definition.retry["max_attempts"] or retry_mode == "NEVER":
+        return "STOP"
+    if retry_mode in {"AFTER_READBACK", "RECONCILE_FIRST"} and normalized_outcome not in {
+        "NOT_OBSERVED",
+        "PROVEN_ABSENT",
+    }:
+        return "RECONCILE" if definition.reconcile["mode"] != "NONE" else "STOP"
+    return "RETRY"
+
+
+def _timestamp(value: object) -> datetime | None:
+    if not isinstance(value, str):
+        return None
+    try:
+        parsed = datetime.fromisoformat(value.replace("Z", "+00:00"))
+    except ValueError:
+        return None
+    if parsed.tzinfo is None or parsed.utcoffset() is None:
+        return None
+    return parsed.astimezone(timezone.utc)
+
+
+def verify_service_restart(
+    before: Mapping[str, Any], after: Mapping[str, Any]
+) -> dict[str, Any]:
+    """Verify a restart with instance identity and start-time evidence.
+
+    Merely observing an active unit proves current activity, not that the requested
+    restart occurred.
+    """
+
+    if not isinstance(before, Mapping) or not isinstance(after, Mapping):
+        return {"status": "UNKNOWN", "reasons": ["restart_observation_invalid"]}
+    if not isinstance(after.get("active"), bool):
+        return {"status": "UNKNOWN", "reasons": ["service_active_invalid"]}
+    if after["active"] is False:
+        return {"status": "DRIFT", "reasons": ["service_not_active"]}
+    before_id = before.get("instance_id")
+    after_id = after.get("instance_id")
+    before_started = _timestamp(before.get("started_at"))
+    after_started = _timestamp(after.get("started_at"))
+    if (
+        not isinstance(before_id, str)
+        or not before_id
+        or not isinstance(after_id, str)
+        or not after_id
+        or before_started is None
+        or after_started is None
+    ):
+        return {"status": "UNKNOWN", "reasons": ["restart_identity_missing"]}
+    if before_id == after_id or after_started <= before_started:
+        return {"status": "DRIFT", "reasons": ["restart_not_observed"]}
+    return {"status": "VERIFIED", "reasons": []}

active-runtime/app/aios_baseline/optimization.py

@@ -0,0 +1,866 @@
+"""Bounded, task-only optimization proposals for Baseline 1.1.
+
+This module deliberately has no configuration or policy write adapter.  Its only
+effect boundary is ``submit_task``, supplied by the authenticated root service.
+"""
+
+from __future__ import annotations
+
+import hashlib
+import json
+import math
+from dataclasses import dataclass
+from pathlib import Path
+import re
+import sqlite3
+import time
+from typing import Any, Callable, Mapping
+
+
+ENVELOPE_SCHEMA = "aios.optimization-envelope.v1"
+PROPOSAL_SCHEMA = "aios.optimization-proposal.v1"
+TASK_REQUEST_SCHEMA = "aios.optimization-task-request.v1"
+
+_IDENTIFIER = re.compile(r"[A-Za-z0-9][A-Za-z0-9_.:-]{0,127}")
+_DIGEST = re.compile(r"sha256:[0-9a-f]{64}")
+
+# An envelope may narrow these limits but cannot introduce another path or
+# expand a range.  Every entry describes a low-risk operational tuning knob.
+_HARD_PARAMETER_LIMITS: dict[str, tuple[float, float, bool]] = {
+    "retry.max_attempts": (1, 10, True),
+    "retry.backoff_seconds": (0, 60, False),
+    "backoff.initial_seconds": (0, 60, False),
+    "backoff.maximum_seconds": (0.1, 600, False),
+    "routing.candidate_weight_percent": (0, 25, False),
+    "routing.weight_percent": (0, 25, False),
+    "evidence_reuse.max_age_seconds": (0, 3600, True),
+    "evidence_reuse.ttl_seconds": (0, 3600, True),
+    "timeout.operation_seconds": (0.1, 300, False),
+    "timeout.seconds": (0.1, 300, False),
+    "poll.interval_seconds": (0.1, 300, False),
+    "notification_dedup.window_seconds": (0, 3600, True),
+    "test_selection.optional_sample_percent": (1, 100, False),
+    "test_selection.optional_percentage": (1, 100, False),
+}
+_NON_PRODUCTION_ENVIRONMENTS = frozenset({"development", "test", "staging", "canary"})
+
+
+class OptimizationError(RuntimeError):
+    """A fail-closed optimization boundary error with a stable code."""
+
+    def __init__(self, code: str):
+        self.code = code
+        super().__init__(code)
+
+
+def canonical_json_bytes(value: Any) -> bytes:
+    try:
+        return json.dumps(
+            value,
+            sort_keys=True,
+            separators=(",", ":"),
+            ensure_ascii=False,
+            allow_nan=False,
+        ).encode("utf-8")
+    except (TypeError, ValueError) as exc:
+        raise OptimizationError("OPTIMIZATION_DOCUMENT_NOT_CANONICAL") from exc
+
+
+def _digest(value: Any) -> str:
+    return "sha256:" + hashlib.sha256(canonical_json_bytes(value)).hexdigest()
+
+
+def _number(value: Any, code: str, *, minimum: float | None = None,
+            maximum: float | None = None) -> int | float:
+    if isinstance(value, bool) or not isinstance(value, (int, float)):
+        raise OptimizationError(code)
+    if not math.isfinite(float(value)):
+        raise OptimizationError(code)
+    if minimum is not None and value < minimum:
+        raise OptimizationError(code)
+    if maximum is not None and value > maximum:
+        raise OptimizationError(code)
+    return value
+
+
+def _identifier(value: Any, code: str) -> str:
+    if not isinstance(value, str) or _IDENTIFIER.fullmatch(value) is None:
+        raise OptimizationError(code)
+    return value
+
+
+def _unique_identifiers(value: Any, code: str, *, maximum: int = 256) -> tuple[str, ...]:
+    if not isinstance(value, (list, tuple)) or len(value) > maximum:
+        raise OptimizationError(code)
+    items = tuple(_identifier(item, code) for item in value)
+    if len(set(items)) != len(items):
+        raise OptimizationError(code)
+    return items
+
+
+@dataclass(frozen=True)
+class ParameterRange:
+    minimum: int | float
+    maximum: int | float
+    integer: bool
+
+
+@dataclass(frozen=True)
+class QualityFloor:
+    direction: str
+    threshold: int | float
+
+
+@dataclass(frozen=True)
+class PromotionRules:
+    objective_metric: str
+    minimum_improvement: int | float
+    mandatory_tests: tuple[str, ...]
+    mandatory_quality_gates: tuple[str, ...]
+    required_receipt_schema: str
+
+
+@dataclass(frozen=True)
+class OptimizationEnvelope:
+    schema: str
+    envelope_id: str
+    tenant_id: str
+    allowed_parameters: Mapping[str, ParameterRange]
+    allowed_components: tuple[str, ...]
+    allowed_environments: tuple[str, ...]
+    max_change_size: int
+    max_compute_budget: int | float
+    quality_floor: Mapping[str, QualityFloor]
+    rollback_requirement: bool
+    promotion_rules: PromotionRules
+    source_config_digest: str
+    key_id: str
+    signature: str
+
+    @classmethod
+    def from_dict(
+        cls,
+        data: Mapping[str, Any],
+        *,
+        verify_envelope: Callable[[str, bytes, str], bool] | None,
+    ) -> "OptimizationEnvelope":
+        """Parse a trusted-config envelope after authenticating its exact bytes.
+
+        ``verify_envelope`` is intentionally mandatory.  The caller cannot mark
+        a document trusted with a boolean or construct an unrestricted envelope.
+        """
+        if verify_envelope is None or not callable(verify_envelope):
+            raise OptimizationError("OPTIMIZATION_ENVELOPE_VERIFIER_REQUIRED")
+        if not isinstance(data, Mapping):
+            raise OptimizationError("OPTIMIZATION_ENVELOPE_INVALID")
+        required = {
+            "schema", "envelope_id", "tenant_id", "allowed_parameters",
+            "allowed_components", "allowed_environments", "max_change_size",
+            "max_compute_budget", "quality_floor", "rollback_requirement",
+            "promotion_rules", "source_config_digest", "key_id", "signature",
+        }
+        if set(data) != required:
+            raise OptimizationError("OPTIMIZATION_ENVELOPE_FIELDS_INVALID")
+        unsigned = dict(data)
+        signature = unsigned.pop("signature")
+        key_id = data.get("key_id")
+        if not isinstance(signature, str) or not signature or not isinstance(key_id, str):
+            raise OptimizationError("OPTIMIZATION_ENVELOPE_SIGNATURE_INVALID")
+        try:
+            verified = verify_envelope(key_id, canonical_json_bytes(unsigned), signature)
+        except Exception as exc:
+            raise OptimizationError("OPTIMIZATION_ENVELOPE_SIGNATURE_INVALID") from exc
+        if verified is not True:
+            raise OptimizationError("OPTIMIZATION_ENVELOPE_SIGNATURE_INVALID")
+
+        if data["schema"] != ENVELOPE_SCHEMA:
+            raise OptimizationError("OPTIMIZATION_ENVELOPE_SCHEMA_INVALID")
+        envelope_id = _identifier(data["envelope_id"], "OPTIMIZATION_ENVELOPE_ID_INVALID")
+        tenant_id = _identifier(data["tenant_id"], "OPTIMIZATION_TENANT_INVALID")
+        if not _DIGEST.fullmatch(str(data["source_config_digest"])):
+            raise OptimizationError("OPTIMIZATION_SOURCE_CONFIG_DIGEST_INVALID")
+        key_id = _identifier(key_id, "OPTIMIZATION_ENVELOPE_KEY_ID_INVALID")
+
+        raw_parameters = data["allowed_parameters"]
+        if not isinstance(raw_parameters, Mapping) or not raw_parameters or len(raw_parameters) > 16:
+            raise OptimizationError("OPTIMIZATION_ALLOWED_PARAMETERS_INVALID")
+        parameters: dict[str, ParameterRange] = {}
+        for path, raw_rule in raw_parameters.items():
+            if path not in _HARD_PARAMETER_LIMITS:
+                raise OptimizationError("OPTIMIZATION_PARAMETER_PATH_FORBIDDEN")
+            if not isinstance(raw_rule, Mapping) or not {"minimum", "maximum"} <= set(raw_rule):
+                raise OptimizationError("OPTIMIZATION_PARAMETER_RANGE_INVALID")
+            if set(raw_rule) - {"minimum", "maximum", "integer"}:
+                raise OptimizationError("OPTIMIZATION_PARAMETER_RANGE_INVALID")
+            hard_min, hard_max, hard_integer = _HARD_PARAMETER_LIMITS[path]
+            minimum = _number(raw_rule["minimum"], "OPTIMIZATION_PARAMETER_RANGE_INVALID")
+            maximum = _number(raw_rule["maximum"], "OPTIMIZATION_PARAMETER_RANGE_INVALID")
+            integer = raw_rule.get("integer", hard_integer)
+            if type(integer) is not bool or minimum > maximum:
+                raise OptimizationError("OPTIMIZATION_PARAMETER_RANGE_INVALID")
+            if minimum < hard_min or maximum > hard_max or (hard_integer and not integer):
+                raise OptimizationError("OPTIMIZATION_PARAMETER_RANGE_TOO_BROAD")
+            if integer and (type(minimum) is not int or type(maximum) is not int):
+                raise OptimizationError("OPTIMIZATION_PARAMETER_RANGE_INVALID")
+            parameters[path] = ParameterRange(minimum, maximum, integer)
+
+        components = _unique_identifiers(
+            data["allowed_components"], "OPTIMIZATION_COMPONENTS_INVALID", maximum=32
+        )
+        environments = _unique_identifiers(
+            data["allowed_environments"], "OPTIMIZATION_ENVIRONMENTS_INVALID", maximum=4
+        )
+        if not components or not environments or not set(environments) <= _NON_PRODUCTION_ENVIRONMENTS:
+            raise OptimizationError("OPTIMIZATION_ENVIRONMENTS_INVALID")
+        max_change_size = _number(
+            data["max_change_size"], "OPTIMIZATION_CHANGE_SIZE_INVALID", minimum=1, maximum=16
+        )
+        if type(max_change_size) is not int:
+            raise OptimizationError("OPTIMIZATION_CHANGE_SIZE_INVALID")
+        max_compute_budget = _number(
+            data["max_compute_budget"],
+            "OPTIMIZATION_COMPUTE_BUDGET_INVALID",
+            minimum=0.001,
+            maximum=10_000,
+        )
+
+        raw_quality = data["quality_floor"]
+        if not isinstance(raw_quality, Mapping) or not raw_quality or len(raw_quality) > 16:
+            raise OptimizationError("OPTIMIZATION_QUALITY_FLOOR_INVALID")
+        quality: dict[str, QualityFloor] = {}
+        for metric, raw_rule in raw_quality.items():
+            metric = _identifier(metric, "OPTIMIZATION_QUALITY_METRIC_INVALID")
+            if not isinstance(raw_rule, Mapping) or set(raw_rule) != {"direction", "threshold"}:
+                raise OptimizationError("OPTIMIZATION_QUALITY_FLOOR_INVALID")
+            if raw_rule["direction"] not in {"higher", "lower"}:
+                raise OptimizationError("OPTIMIZATION_QUALITY_DIRECTION_INVALID")
+            threshold = _number(
+                raw_rule["threshold"], "OPTIMIZATION_QUALITY_FLOOR_INVALID",
+                minimum=-1e12, maximum=1e12,
+            )
+            quality[metric] = QualityFloor(raw_rule["direction"], threshold)
+
+        if type(data["rollback_requirement"]) is not bool:
+            raise OptimizationError("OPTIMIZATION_ROLLBACK_REQUIREMENT_INVALID")
+        raw_promotion = data["promotion_rules"]
+        promotion_fields = {
+            "objective_metric", "minimum_improvement", "mandatory_tests",
+            "mandatory_quality_gates", "required_receipt_schema",
+        }
+        if not isinstance(raw_promotion, Mapping) or set(raw_promotion) != promotion_fields:
+            raise OptimizationError("OPTIMIZATION_PROMOTION_RULES_INVALID")
+        objective = _identifier(
+            raw_promotion["objective_metric"], "OPTIMIZATION_OBJECTIVE_METRIC_INVALID"
+        )
+        if objective not in quality:
+            raise OptimizationError("OPTIMIZATION_OBJECTIVE_METRIC_INVALID")
+        minimum_improvement = _number(
+            raw_promotion["minimum_improvement"],
+            "OPTIMIZATION_MINIMUM_IMPROVEMENT_INVALID",
+            minimum=0,
+            maximum=1e12,
+        )
+        mandatory_tests = _unique_identifiers(
+            raw_promotion["mandatory_tests"], "OPTIMIZATION_MANDATORY_TESTS_INVALID"
+        )
+        mandatory_gates = _unique_identifiers(
+            raw_promotion["mandatory_quality_gates"], "OPTIMIZATION_MANDATORY_GATES_INVALID"
+        )
+        if not mandatory_tests or not mandatory_gates:
+            raise OptimizationError("OPTIMIZATION_PROMOTION_RULES_INVALID")
+        receipt_schema = _identifier(
+            raw_promotion["required_receipt_schema"], "OPTIMIZATION_RECEIPT_SCHEMA_INVALID"
+        )
+        if not receipt_schema.startswith("aios."):
+            raise OptimizationError("OPTIMIZATION_RECEIPT_SCHEMA_INVALID")
+        promotion = PromotionRules(
+            objective, minimum_improvement, mandatory_tests, mandatory_gates, receipt_schema
+        )
+        return cls(
+            ENVELOPE_SCHEMA, envelope_id, tenant_id, parameters, components,
+            environments, max_change_size, max_compute_budget, quality,
+            data["rollback_requirement"], promotion, data["source_config_digest"],
+            key_id, signature,
+        )
+
+
+_PROPOSAL_REQUIRED = {
+    "schema", "proposal_id", "envelope_id", "tenant_id", "component",
+    "environment", "changes", "compute_budget", "tests", "quality_gates",
+    "baseline_metrics", "rollback_plan",
+}
+
+
+def validate_proposal(envelope: OptimizationEnvelope, proposal: Mapping[str, Any]) -> dict:
+    """Return a canonical candidate constrained by ``envelope``."""
+    if not isinstance(envelope, OptimizationEnvelope):
+        raise OptimizationError("OPTIMIZATION_ENVELOPE_REQUIRED")
+    if not isinstance(proposal, Mapping):
+        raise OptimizationError("OPTIMIZATION_PROPOSAL_INVALID")
+    allowed_fields = _PROPOSAL_REQUIRED | {"evidence_reuse"}
+    if set(proposal) - allowed_fields or not _PROPOSAL_REQUIRED <= set(proposal):
+        raise OptimizationError("OPTIMIZATION_PROPOSAL_FIELDS_INVALID")
+    if proposal["schema"] != PROPOSAL_SCHEMA:
+        raise OptimizationError("OPTIMIZATION_PROPOSAL_SCHEMA_INVALID")
+    proposal_id = _identifier(proposal["proposal_id"], "OPTIMIZATION_PROPOSAL_ID_INVALID")
+    if proposal["envelope_id"] != envelope.envelope_id:
+        raise OptimizationError("OPTIMIZATION_ENVELOPE_BINDING_MISMATCH")
+    if proposal["tenant_id"] != envelope.tenant_id:
+        raise OptimizationError("OPTIMIZATION_PROPOSAL_TENANT_MISMATCH")
+    component = _identifier(proposal["component"], "OPTIMIZATION_COMPONENT_INVALID")
+    if component not in envelope.allowed_components:
+        raise OptimizationError("OPTIMIZATION_COMPONENT_FORBIDDEN")
+    environment = _identifier(proposal["environment"], "OPTIMIZATION_ENVIRONMENT_INVALID")
+    if environment not in envelope.allowed_environments:
+        raise OptimizationError("OPTIMIZATION_ENVIRONMENT_FORBIDDEN")
+
+    raw_changes = proposal["changes"]
+    if not isinstance(raw_changes, list) or not raw_changes or len(raw_changes) > envelope.max_change_size:
+        raise OptimizationError("OPTIMIZATION_CHANGE_SIZE_EXCEEDED")
+    changes: list[dict[str, Any]] = []
+    paths: set[str] = set()
+    for change in raw_changes:
+        if not isinstance(change, Mapping) or set(change) != {"path", "value"}:
+            raise OptimizationError("OPTIMIZATION_CHANGE_INVALID")
+        path = change["path"]
+        if not isinstance(path, str) or path not in envelope.allowed_parameters:
+            raise OptimizationError("OPTIMIZATION_PARAMETER_PATH_FORBIDDEN")
+        if path in paths:
+            raise OptimizationError("OPTIMIZATION_PARAMETER_DUPLICATE")
+        paths.add(path)
+        rule = envelope.allowed_parameters[path]
+        value = _number(change["value"], "OPTIMIZATION_PARAMETER_VALUE_INVALID")
+        if rule.integer and type(value) is not int:
+            raise OptimizationError("OPTIMIZATION_PARAMETER_VALUE_INVALID")
+        if value < rule.minimum or value > rule.maximum:
+            raise OptimizationError("OPTIMIZATION_PARAMETER_OUT_OF_RANGE")
+        changes.append({"path": path, "value": value})
+
+    compute_budget = _number(
+        proposal["compute_budget"],
+        "OPTIMIZATION_COMPUTE_BUDGET_EXCEEDED",
+        minimum=0.001,
+        maximum=float(envelope.max_compute_budget),
+    )
+    tests = _unique_identifiers(proposal["tests"], "OPTIMIZATION_TESTS_INVALID")
+    gates = _unique_identifiers(proposal["quality_gates"], "OPTIMIZATION_QUALITY_GATES_INVALID")
+    for mandatory in envelope.promotion_rules.mandatory_tests:
+        if mandatory not in tests:
+            raise OptimizationError("OPTIMIZATION_MANDATORY_TEST_MISSING")
+    for mandatory in envelope.promotion_rules.mandatory_quality_gates:
+        if mandatory not in gates:
+            raise OptimizationError("OPTIMIZATION_MANDATORY_GATE_MISSING")
+
+    raw_baseline = proposal["baseline_metrics"]
+    if not isinstance(raw_baseline, Mapping) or set(raw_baseline) != set(envelope.quality_floor):
+        raise OptimizationError("OPTIMIZATION_BASELINE_METRICS_INVALID")
+    baseline = {
+        metric: _number(raw_baseline[metric], "OPTIMIZATION_BASELINE_METRICS_INVALID")
+        for metric in sorted(raw_baseline)
+    }
+
+    rollback_plan = proposal["rollback_plan"]
+    if envelope.rollback_requirement:
+        if (
+            not isinstance(rollback_plan, Mapping)
+            or set(rollback_plan) != {"strategy", "reference"}
+            or rollback_plan.get("strategy") != "restore_previous_values"
+        ):
+            raise OptimizationError("OPTIMIZATION_ROLLBACK_PLAN_REQUIRED")
+        _identifier(rollback_plan.get("reference"), "OPTIMIZATION_ROLLBACK_PLAN_INVALID")
+        normalized_rollback: dict[str, str] | None = {
+            "strategy": "restore_previous_values",
+            "reference": rollback_plan["reference"],
+        }
+    else:
+        if rollback_plan is not None:
+            raise OptimizationError("OPTIMIZATION_ROLLBACK_PLAN_INVALID")
+        normalized_rollback = None
+
+    normalized_evidence = None
+    if "evidence_reuse" in proposal:
+        evidence = proposal["evidence_reuse"]
+        if not isinstance(evidence, Mapping) or set(evidence) != {"scope", "evidence_ids"}:
+            raise OptimizationError("OPTIMIZATION_EVIDENCE_REUSE_INVALID")
+        expected_scope = {
+            "tenant_id": envelope.tenant_id,
+            "component": component,
+            "environment": environment,
+        }
+        if evidence["scope"] != expected_scope:
+            raise OptimizationError("OPTIMIZATION_EVIDENCE_SCOPE_MISMATCH")
+        evidence_ids = _unique_identifiers(
+            evidence["evidence_ids"], "OPTIMIZATION_EVIDENCE_REUSE_INVALID", maximum=128
+        )
+        normalized_evidence = {"scope": expected_scope, "evidence_ids": list(evidence_ids)}
+
+    normalized = {
+        "schema": PROPOSAL_SCHEMA,
+        "proposal_id": proposal_id,
+        "envelope_id": envelope.envelope_id,
+        "tenant_id": envelope.tenant_id,
+        "component": component,
+        "environment": environment,
+        "changes": changes,
+        "compute_budget": float(compute_budget),
+        "tests": list(tests),
+        "quality_gates": list(gates),
+        "baseline_metrics": baseline,
+        "rollback_plan": normalized_rollback,
+    }
+    if normalized_evidence is not None:
+        normalized["evidence_reuse"] = normalized_evidence
+    if len(canonical_json_bytes(normalized)) > 65_536:
+        raise OptimizationError("OPTIMIZATION_PROPOSAL_TOO_LARGE")
+    return normalized
+
+
+class OptimizationController:
+    """Durable proposal state machine whose only external effect is task admission."""
+
+    def __init__(
+        self,
+        path: str | Path,
+        envelope: OptimizationEnvelope,
+        submit_task: Callable[[Mapping[str, Any]], Mapping[str, Any]],
+        *,
+        verify_receipt: Callable[[Mapping[str, Any]], bool],
+    ):
+        if not isinstance(envelope, OptimizationEnvelope):
+            raise OptimizationError("OPTIMIZATION_ENVELOPE_REQUIRED")
+        if not callable(submit_task):
+            raise OptimizationError("OPTIMIZATION_TASK_SUBMITTER_REQUIRED")
+        if not callable(verify_receipt):
+            raise OptimizationError("OPTIMIZATION_RECEIPT_VERIFIER_REQUIRED")
+        self.path = Path(path)
+        self.path.parent.mkdir(parents=True, exist_ok=True)
+        self.envelope = envelope
+        self.submit_task = submit_task
+        self.verify_receipt = verify_receipt
+        self._initialize()
+
+    def _connect(self) -> sqlite3.Connection:
+        connection = sqlite3.connect(self.path, timeout=30)
+        connection.row_factory = sqlite3.Row
+        connection.execute("PRAGMA foreign_keys=ON")
+        return connection
+
+    def _initialize(self) -> None:
+        with self._connect() as connection:
+            connection.execute("PRAGMA journal_mode=WAL")
+            connection.execute(
+                """
+                CREATE TABLE IF NOT EXISTS optimization_proposals (
+                    proposal_id TEXT PRIMARY KEY,
+                    tenant_id TEXT NOT NULL,
+                    subject_id TEXT NOT NULL,
+                    grant_id TEXT NOT NULL,
+                    mission_id TEXT NOT NULL,
+                    envelope_id TEXT NOT NULL,
+                    proposal_digest TEXT NOT NULL,
+                    proposal_json TEXT NOT NULL,
+                    status TEXT NOT NULL,
+                    evaluation_task_id TEXT,
+                    promotion_task_id TEXT,
+                    baseline_json TEXT NOT NULL,
+                    candidate_json TEXT,
+                    effect_json TEXT,
+                    evaluation_json TEXT,
+                    receipt_json TEXT,
+                    error_code TEXT,
+                    created_at REAL NOT NULL,
+                    updated_at REAL NOT NULL
+                )
+                """
+            )
+
+    def _context(self, value: Mapping[str, Any]) -> dict[str, str]:
+        if not isinstance(value, Mapping):
+            raise OptimizationError("OPTIMIZATION_AUTHENTICATED_CONTEXT_REQUIRED")
+        fields = ("tenant_id", "subject_id", "grant_id", "mission_id", "service_identity")
+        try:
+            context = {
+                field: _identifier(value[field], "OPTIMIZATION_AUTHENTICATED_CONTEXT_INVALID")
+                for field in fields
+            }
+        except KeyError as exc:
+            raise OptimizationError("OPTIMIZATION_AUTHENTICATED_CONTEXT_REQUIRED") from exc
+        if context["service_identity"] != "aios-root-service":
+            raise OptimizationError("OPTIMIZATION_ROOT_SERVICE_REQUIRED")
+        if context["tenant_id"] != self.envelope.tenant_id:
+            raise OptimizationError("OPTIMIZATION_CONTEXT_TENANT_MISMATCH")
+        return context
+
+    def _row(self, proposal_id: str) -> sqlite3.Row:
+        with self._connect() as connection:
+            row = connection.execute(
+                "SELECT * FROM optimization_proposals WHERE proposal_id=?", (proposal_id,)
+            ).fetchone()
+        if row is None:
+            raise OptimizationError("OPTIMIZATION_PROPOSAL_NOT_FOUND")
+        return row
+
+    def _authorized_row(self, proposal_id: str, context: Mapping[str, Any]) -> sqlite3.Row:
+        checked = self._context(context)
+        row = self._row(_identifier(proposal_id, "OPTIMIZATION_PROPOSAL_ID_INVALID"))
+        if row["tenant_id"] != checked["tenant_id"]:
+            raise OptimizationError("OPTIMIZATION_CONTEXT_TENANT_MISMATCH")
+        if row["subject_id"] != checked["subject_id"]:
+            raise OptimizationError("OPTIMIZATION_CONTEXT_SUBJECT_MISMATCH")
+        if row["grant_id"] != checked["grant_id"]:
+            raise OptimizationError("OPTIMIZATION_CONTEXT_GRANT_MISMATCH")
+        if row["mission_id"] != checked["mission_id"]:
+            raise OptimizationError("OPTIMIZATION_CONTEXT_MISSION_MISMATCH")
+        return row
+
+    @staticmethod
+    def _decode(value: str | None) -> Any:
+        return None if value is None else json.loads(value)
+
+    def _record(self, row: sqlite3.Row) -> dict:
+        proposal = self._decode(row["proposal_json"])
+        result = dict(proposal)
+        result.update(
+            {
+                "proposal_id": row["proposal_id"],
+                "proposal_digest": row["proposal_digest"],
+                "status": row["status"],
+                "evaluation_task_id": row["evaluation_task_id"],
+                "promotion_task_id": row["promotion_task_id"],
+                "baseline_metrics": self._decode(row["baseline_json"]),
+                "candidate_metrics": self._decode(row["candidate_json"]),
+                "effect_comparison": self._decode(row["effect_json"]),
+                "error_code": row["error_code"],
+            }
+        )
+        return result
+
+    def get_proposal(self, proposal_id: str, *, authenticated_context: Mapping[str, Any]) -> dict:
+        return self._record(self._authorized_row(proposal_id, authenticated_context))
+
+    def _persist_invalid(self, proposal: Mapping[str, Any], context: Mapping[str, str],
+                         error: OptimizationError) -> None:
+        proposal_id = proposal.get("proposal_id")
+        tenant_id = proposal.get("tenant_id")
+        if (
+            not isinstance(proposal_id, str)
+            or _IDENTIFIER.fullmatch(proposal_id) is None
+            or tenant_id != self.envelope.tenant_id
+        ):
+            return
+        try:
+            encoded = canonical_json_bytes(proposal)
+        except OptimizationError:
+            return
+        if len(encoded) > 65_536:
+            return
+        digest = "sha256:" + hashlib.sha256(encoded).hexdigest()
+        baseline = proposal.get("baseline_metrics")
+        if not isinstance(baseline, Mapping):
+            baseline = {}
+        now = time.time()
+        with self._connect() as connection:
+            connection.execute(
+                """
+                INSERT OR IGNORE INTO optimization_proposals
+                (proposal_id,tenant_id,subject_id,grant_id,mission_id,envelope_id,
+                 proposal_digest,proposal_json,status,baseline_json,error_code,created_at,updated_at)
+                VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?)
+                """,
+                (
+                    proposal_id, self.envelope.tenant_id, context["subject_id"],
+                    context["grant_id"], context["mission_id"], self.envelope.envelope_id,
+                    digest, encoded.decode("utf-8"), "STOPPED_INVALID",
+                    canonical_json_bytes(baseline).decode("utf-8"), error.code, now, now,
+                ),
+            )
+
+    def propose(self, proposal: Mapping[str, Any], *, authenticated_context: Mapping[str, Any]) -> dict:
+        context = self._context(authenticated_context)
+        try:
+            normalized = validate_proposal(self.envelope, proposal)
+        except OptimizationError as exc:
+            if isinstance(proposal, Mapping):
+                self._persist_invalid(proposal, context, exc)
+            raise
+        proposal_digest = _digest(normalized)
+        proposal_id = normalized["proposal_id"]
+        now = time.time()
+        encoded = canonical_json_bytes(normalized).decode("utf-8")
+        with self._connect() as connection:
+            existing = connection.execute(
+                "SELECT * FROM optimization_proposals WHERE proposal_id=?", (proposal_id,)
+            ).fetchone()
+            if existing is not None:
+                if existing["proposal_digest"] != proposal_digest:
+                    raise OptimizationError("OPTIMIZATION_PROPOSAL_ID_CONFLICT")
+                if (
+                    existing["tenant_id"] != context["tenant_id"]
+                    or existing["subject_id"] != context["subject_id"]
+                    or existing["grant_id"] != context["grant_id"]
+                    or existing["mission_id"] != context["mission_id"]
+                ):
+                    raise OptimizationError("OPTIMIZATION_CONTEXT_BINDING_MISMATCH")
+                if existing["status"] != "PROPOSAL_RECORDED":
+                    return self._record(existing)
+            else:
+                connection.execute(
+                    """
+                    INSERT INTO optimization_proposals
+                    (proposal_id,tenant_id,subject_id,grant_id,mission_id,envelope_id,
+                     proposal_digest,proposal_json,status,baseline_json,created_at,updated_at)
+                    VALUES(?,?,?,?,?,?,?,?,?,?,?,?)
+                    """,
+                    (
+                        proposal_id, context["tenant_id"], context["subject_id"],
+                        context["grant_id"], context["mission_id"], self.envelope.envelope_id,
+                        proposal_digest, encoded, "PROPOSAL_RECORDED",
+                        canonical_json_bytes(normalized["baseline_metrics"]).decode("utf-8"),
+                        now, now,
+                    ),
+                )
+
+        requested_task_id = f"optimization-evaluate-{proposal_id}"
+        task_request = {
+            "schema": TASK_REQUEST_SCHEMA,
+            "task_id": requested_task_id,
+            "action": "evaluate",
+            "tenant_id": context["tenant_id"],
+            "subject_id": context["subject_id"],
+            "grant_id": context["grant_id"],
+            "mission_id": context["mission_id"],
+            "proposal_id": proposal_id,
+            "proposal_digest": proposal_digest,
+            "component": normalized["component"],
+            "environment": normalized["environment"],
+            "compute_budget": normalized["compute_budget"],
+        }
+        try:
+            receipt = self.submit_task(task_request)
+            if not isinstance(receipt, Mapping):
+                raise OptimizationError("OPTIMIZATION_TASK_SUBMISSION_INVALID")
+            task_id = _identifier(
+                receipt.get("task_id"), "OPTIMIZATION_TASK_SUBMISSION_INVALID"
+            )
+        except Exception as exc:
+            with self._connect() as connection:
+                connection.execute(
+                    "UPDATE optimization_proposals SET status=?,error_code=?,updated_at=? "
+                    "WHERE proposal_id=? AND status='PROPOSAL_RECORDED'",
+                    ("STOPPED_SUBMISSION_FAILED", "OPTIMIZATION_TASK_SUBMISSION_FAILED", time.time(), proposal_id),
+                )
+            if isinstance(exc, OptimizationError):
+                raise
+            raise OptimizationError("OPTIMIZATION_TASK_SUBMISSION_FAILED") from exc
+        with self._connect() as connection:
+            connection.execute(
+                "UPDATE optimization_proposals SET status=?,evaluation_task_id=?,updated_at=? "
+                "WHERE proposal_id=? AND status='PROPOSAL_RECORDED'",
+                ("EVALUATION_SUBMITTED", task_id, time.time(), proposal_id),
+            )
+        return self.get_proposal(proposal_id, authenticated_context=context)
+
+    def _trusted_receipt(self, receipt: Any) -> Mapping[str, Any]:
+        if not isinstance(receipt, Mapping):
+            raise OptimizationError("OPTIMIZATION_RECEIPT_INVALID")
+        try:
+            trusted = self.verify_receipt(receipt)
+        except Exception as exc:
+            raise OptimizationError("OPTIMIZATION_RECEIPT_UNTRUSTED") from exc
+        if trusted is not True:
+            raise OptimizationError("OPTIMIZATION_RECEIPT_UNTRUSTED")
+        return receipt
+
+    def record_evaluation(
+        self,
+        proposal_id: str,
+        evaluation: Mapping[str, Any],
+        *,
+        authenticated_context: Mapping[str, Any],
+    ) -> dict:
+        row = self._authorized_row(proposal_id, authenticated_context)
+        if row["status"] != "EVALUATION_SUBMITTED":
+            raise OptimizationError("OPTIMIZATION_EVALUATION_STATE_INVALID")
+        if not isinstance(evaluation, Mapping) or set(evaluation) != {
+            "candidate_metrics", "compute_used", "tests_passed",
+            "quality_gates_passed", "receipt",
+        }:
+            raise OptimizationError("OPTIMIZATION_EVALUATION_INVALID")
+        result_body = {key: evaluation[key] for key in evaluation if key != "receipt"}
+        receipt = self._trusted_receipt(evaluation["receipt"])
+        required_receipt = {
+            "schema", "task_id", "proposal_id", "proposal_digest", "action",
+            "success", "result_digest", "key_id", "signature",
+        }
+        if set(receipt) != required_receipt:
+            raise OptimizationError("OPTIMIZATION_RECEIPT_INVALID")
+        if receipt["schema"] != self.envelope.promotion_rules.required_receipt_schema:
+            raise OptimizationError("OPTIMIZATION_RECEIPT_SCHEMA_MISMATCH")
+        if receipt["task_id"] != row["evaluation_task_id"]:
+            raise OptimizationError("OPTIMIZATION_RECEIPT_TASK_MISMATCH")
+        if receipt["proposal_id"] != row["proposal_id"]:
+            raise OptimizationError("OPTIMIZATION_RECEIPT_PROPOSAL_MISMATCH")
+        if receipt["proposal_digest"] != row["proposal_digest"]:
+            raise OptimizationError("OPTIMIZATION_RECEIPT_PROPOSAL_DIGEST_MISMATCH")
+        if receipt["action"] != "evaluate" or receipt["success"] is not True:
+            raise OptimizationError("OPTIMIZATION_RECEIPT_RESULT_INVALID")
+        if receipt["result_digest"] != _digest(result_body):
+            raise OptimizationError("OPTIMIZATION_RECEIPT_RESULT_DIGEST_MISMATCH")
+
+        proposal = self._decode(row["proposal_json"])
+        compute_used = _number(
+            evaluation["compute_used"], "OPTIMIZATION_EVALUATION_BUDGET_EXCEEDED", minimum=0
+        )
+        if compute_used > proposal["compute_budget"] or compute_used > self.envelope.max_compute_budget:
+            status = "STOPPED_BUDGET_EXCEEDED"
+            error_code = "OPTIMIZATION_EVALUATION_BUDGET_EXCEEDED"
+            return self._store_evaluation(row, evaluation, receipt, {}, status, error_code)
+        tests_passed = _unique_identifiers(
+            evaluation["tests_passed"], "OPTIMIZATION_EVALUATION_TESTS_INVALID"
+        )
+        gates_passed = _unique_identifiers(
+            evaluation["quality_gates_passed"], "OPTIMIZATION_EVALUATION_GATES_INVALID"
+        )
+        if not set(self.envelope.promotion_rules.mandatory_tests) <= set(tests_passed):
+            return self._store_evaluation(
+                row, evaluation, receipt, {}, "STOPPED_MANDATORY_TEST_FAILED",
+                "OPTIMIZATION_MANDATORY_TEST_FAILED",
+            )
+        if not set(self.envelope.promotion_rules.mandatory_quality_gates) <= set(gates_passed):
+            return self._store_evaluation(
+                row, evaluation, receipt, {}, "STOPPED_MANDATORY_GATE_FAILED",
+                "OPTIMIZATION_MANDATORY_GATE_FAILED",
+            )
+        raw_candidate = evaluation["candidate_metrics"]
+        if not isinstance(raw_candidate, Mapping) or set(raw_candidate) != set(self.envelope.quality_floor):
+            raise OptimizationError("OPTIMIZATION_CANDIDATE_METRICS_INVALID")
+        candidate = {
+            metric: _number(raw_candidate[metric], "OPTIMIZATION_CANDIDATE_METRICS_INVALID")
+            for metric in sorted(raw_candidate)
+        }
+        baseline = self._decode(row["baseline_json"])
+        effect: dict[str, float] = {}
+        quality_regression = False
+        for metric in sorted(self.envelope.quality_floor):
+            rule = self.envelope.quality_floor[metric]
+            if rule.direction == "higher":
+                delta = float(candidate[metric]) - float(baseline[metric])
+                below_floor = candidate[metric] < rule.threshold
+            else:
+                delta = float(baseline[metric]) - float(candidate[metric])
+                below_floor = candidate[metric] > rule.threshold
+            effect[metric] = round(delta, 12)
+            quality_regression = quality_regression or below_floor or delta < -1e-12
+        objective = self.envelope.promotion_rules.objective_metric
+        if quality_regression:
+            status, error_code = "STOPPED_QUALITY_REGRESSION", "OPTIMIZATION_QUALITY_REGRESSION"
+        elif effect[objective] + 1e-12 < self.envelope.promotion_rules.minimum_improvement:
+            status, error_code = "STOPPED_NO_IMPROVEMENT", "OPTIMIZATION_NO_IMPROVEMENT"
+        else:
+            status, error_code = "ELIGIBLE", None
+        return self._store_evaluation(row, evaluation, receipt, effect, status, error_code, candidate)
+
+    def _store_evaluation(
+        self,
+        row: sqlite3.Row,
+        evaluation: Mapping[str, Any],
+        receipt: Mapping[str, Any],
+        effect: Mapping[str, Any],
+        status: str,
+        error_code: str | None,
+        candidate: Mapping[str, Any] | None = None,
+    ) -> dict:
+        candidate = dict(candidate or {})
+        with self._connect() as connection:
+            connection.execute(
+                """
+                UPDATE optimization_proposals
+                SET status=?,candidate_json=?,effect_json=?,evaluation_json=?,receipt_json=?,
+                    error_code=?,updated_at=?
+                WHERE proposal_id=?
+                """,
+                (
+                    status, canonical_json_bytes(candidate).decode("utf-8"),
+                    canonical_json_bytes(effect).decode("utf-8"),
+                    canonical_json_bytes({k: evaluation[k] for k in evaluation if k != "receipt"}).decode("utf-8"),
+                    canonical_json_bytes(receipt).decode("utf-8"), error_code, time.time(),
+                    row["proposal_id"],
+                ),
+            )
+        return self._record(self._row(row["proposal_id"]))
+
+    def promote(
+        self,
+        proposal_id: str,
+        promotion: Mapping[str, Any],
+        *,
+        authenticated_context: Mapping[str, Any],
+    ) -> dict:
+        context = self._context(authenticated_context)
+        row = self._authorized_row(proposal_id, context)
+        if not isinstance(promotion, Mapping) or set(promotion) != {
+            "evaluation_task_id", "proposal_digest"
+        }:
+            raise OptimizationError("OPTIMIZATION_PROMOTION_REQUEST_INVALID")
+        if promotion["evaluation_task_id"] != row["evaluation_task_id"]:
+            raise OptimizationError("OPTIMIZATION_PROMOTION_TASK_MISMATCH")
+        if promotion["proposal_digest"] != row["proposal_digest"]:
+            raise OptimizationError("OPTIMIZATION_PROMOTION_PROPOSAL_MISMATCH")
+        if row["status"] == "PROMOTION_SUBMITTED":
+            return self._record(row)
+        if row["status"] != "ELIGIBLE":
+            raise OptimizationError("OPTIMIZATION_NOT_PROMOTABLE")
+        stored_receipt = self._trusted_receipt(self._decode(row["receipt_json"]))
+        if (
+            stored_receipt.get("task_id") != row["evaluation_task_id"]
+            or stored_receipt.get("proposal_digest") != row["proposal_digest"]
+            or stored_receipt.get("action") != "evaluate"
+            or stored_receipt.get("success") is not True
+        ):
+            raise OptimizationError("OPTIMIZATION_PROMOTION_RECEIPT_BINDING_INVALID")
+        evaluation = self._decode(row["evaluation_json"])
+        if stored_receipt.get("result_digest") != _digest(evaluation):
+            raise OptimizationError("OPTIMIZATION_PROMOTION_QUALITY_RESULT_INVALID")
+
+        task_request = {
+            "schema": TASK_REQUEST_SCHEMA,
+            "task_id": f"optimization-promote-{proposal_id}",
+            "action": "promote",
+            "tenant_id": context["tenant_id"],
+            "subject_id": context["subject_id"],
+            "grant_id": context["grant_id"],
+            "mission_id": context["mission_id"],
+            "proposal_id": row["proposal_id"],
+            "proposal_digest": row["proposal_digest"],
+            "evaluation_task_id": row["evaluation_task_id"],
+            "evaluation_result_digest": stored_receipt["result_digest"],
+        }
+        try:
+            submission = self.submit_task(task_request)
+            if not isinstance(submission, Mapping):
+                raise OptimizationError("OPTIMIZATION_TASK_SUBMISSION_INVALID")
+            task_id = _identifier(
+                submission.get("task_id"), "OPTIMIZATION_TASK_SUBMISSION_INVALID"
+            )
+        except Exception as exc:
+            with self._connect() as connection:
+                connection.execute(
+                    "UPDATE optimization_proposals SET status=?,error_code=?,updated_at=? WHERE proposal_id=?",
+                    ("STOPPED_PROMOTION_SUBMISSION_FAILED", "OPTIMIZATION_TASK_SUBMISSION_FAILED", time.time(), proposal_id),
+                )
+            if isinstance(exc, OptimizationError):
+                raise
+            raise OptimizationError("OPTIMIZATION_TASK_SUBMISSION_FAILED") from exc
+        with self._connect() as connection:
+            connection.execute(
+                "UPDATE optimization_proposals SET status=?,promotion_task_id=?,error_code=NULL,updated_at=? "
+                "WHERE proposal_id=? AND status='ELIGIBLE'",
+                ("PROMOTION_SUBMITTED", task_id, time.time(), proposal_id),
+            )
+        return self.get_proposal(proposal_id, authenticated_context=context)
+
+
+__all__ = [
+    "OptimizationController", "OptimizationEnvelope", "OptimizationError",
+    "canonical_json_bytes", "validate_proposal",
+]

active-runtime/app/aios_baseline/release.py

@@ -0,0 +1,742 @@
+"""Release-owned deployment targets and a receipt-gated persistent saga.
+
+The module persists intent before invoking a governed operation adapter.  It
+does not contain a shell runner, production signer, or success simulator.  A
+configured verifier must translate an adapter/sink receipt into a typed,
+operation-bound :class:`VerifiedReceipt` before a stage can advance.
+"""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+from datetime import datetime, timezone
+import hashlib
+import json
+from pathlib import Path
+import sqlite3
+from typing import Any, Callable, Mapping, Sequence
+
+from .lineage import (
+    LineageLedger,
+    VerifiedAcceptanceEvidence,
+    canonical_artifact,
+    decode_artifact,
+)
+
+
+class ReleaseError(RuntimeError):
+    pass
+
+
+class ReleaseConflict(ReleaseError):
+    pass
+
+
+class ReleaseVerificationError(ReleaseError):
+    pass
+
+
+class ReleaseAuthorizationError(ReleaseError):
+    pass
+
+
+class ReleaseReconciliationRequired(ReleaseError):
+    pass
+
+
+@dataclass(frozen=True)
+class VerifiedReceipt:
+    """Trusted verifier output, fully bound to one persisted stage effect."""
+
+    receipt_id: str
+    tenant_id: str
+    subject_id: str
+    component_id: str
+    task_id: str
+    source_task_id: str
+    source_effect_id: str
+    grant_id: str
+    job_id: str
+    effect_id: str
+    operation_id: str
+    deployment_id: str
+    release_id: str
+    artifact: Any
+    observed: Mapping[str, Any]
+    outcome: str = "SUCCEEDED"
+    observed_at: str | None = None
+
+
+@dataclass(frozen=True)
+class EnvironmentDeploymentTarget:
+    tenant_id: str
+    component_id: str
+    environment: str
+    release_id: str
+    artifact: Any
+    revision: int
+    stage: str
+    source_revision: str | None
+    observed_main_revision: str | None
+    previous_release_id: str | None
+    previous_artifact: Any | None
+    rollback_release_id: str | None
+    rollback_artifact: Any | None
+    rollback_compatible: bool
+    updated_by_subject_id: str
+    updated_at: str
+
+
+def _now() -> str:
+    return datetime.now(timezone.utc).isoformat()
+
+
+def _required(value: Any, name: str) -> str:
+    text = str(value or "")
+    if not text or len(text) > 512 or any(ord(char) < 32 for char in text):
+        raise ValueError(f"invalid {name}")
+    return text
+
+
+def _json(value: Any) -> str:
+    return json.dumps(value, ensure_ascii=False, sort_keys=True, separators=(",", ":"), allow_nan=False)
+
+
+def _recipe_digest(stages: Sequence[Mapping[str, Any]]) -> str:
+    return hashlib.sha256(_json(list(stages)).encode()).hexdigest()
+
+
+class ReleaseLedger:
+    """The release domain authority for dynamic targets and deployment sagas."""
+
+    TARGET_STAGES = {"STAGED", "ACTIVE", "ROLLBACK_STAGED"}
+
+    def __init__(
+        self,
+        path: str | Path,
+        *,
+        lineage: LineageLedger,
+        receipt_verifier: Callable[[Any, Mapping[str, Any]], VerifiedReceipt],
+        target_authorizer: Callable[[str,str,str,str,str], bool],
+    ):
+        if not isinstance(lineage, LineageLedger):
+            raise ValueError("lineage ledger is required")
+        if not callable(receipt_verifier):
+            raise ValueError("receipt_verifier is required")
+        if not callable(target_authorizer):
+            raise ValueError("target_authorizer is required")
+        self.path = str(path)
+        self.lineage = lineage
+        self.receipt_verifier = receipt_verifier
+        self.target_authorizer = target_authorizer
+        Path(self.path).parent.mkdir(parents=True, exist_ok=True)
+        self._initialize()
+
+    def _connect(self) -> sqlite3.Connection:
+        connection = sqlite3.connect(self.path, timeout=30)
+        connection.row_factory = sqlite3.Row
+        connection.execute("PRAGMA foreign_keys=ON")
+        connection.execute("PRAGMA busy_timeout=30000")
+        return connection
+
+    def _initialize(self) -> None:
+        with self._connect() as connection:
+            connection.execute("PRAGMA journal_mode=WAL")
+            tables={row[0] for row in connection.execute("SELECT name FROM sqlite_master WHERE type='table'")}
+            if "release_targets" in tables and "release_schema_meta" not in tables:
+                raise ReleaseConflict("unversioned candidate release schema requires explicit migration")
+            if "release_schema_meta" in tables:
+                version=connection.execute("SELECT version FROM release_schema_meta WHERE domain='release'").fetchone()
+                if version is None or version[0] != 2:
+                    raise ReleaseConflict("unsupported release schema version")
+            connection.executescript(
+                """
+                CREATE TABLE IF NOT EXISTS release_schema_meta (
+                    domain TEXT PRIMARY KEY,
+                    version INTEGER NOT NULL
+                );
+                CREATE TABLE IF NOT EXISTS release_recipes (
+                    recipe_id TEXT PRIMARY KEY,
+                    recipe_digest TEXT NOT NULL,
+                    stages_json TEXT NOT NULL,
+                    created_at TEXT NOT NULL
+                );
+                CREATE TABLE IF NOT EXISTS release_targets (
+                    tenant_id TEXT NOT NULL,
+                    component_id TEXT NOT NULL,
+                    environment TEXT NOT NULL,
+                    release_id TEXT NOT NULL,
+                    artifact_json TEXT NOT NULL,
+                    revision INTEGER NOT NULL,
+                    stage TEXT NOT NULL,
+                    source_revision TEXT,
+                    observed_main_revision TEXT,
+                    previous_release_id TEXT,
+                    previous_artifact_json TEXT,
+                    rollback_release_id TEXT,
+                    rollback_artifact_json TEXT,
+                    rollback_compatible INTEGER NOT NULL CHECK (rollback_compatible IN (0,1)),
+                    updated_by_subject_id TEXT NOT NULL,
+                    updated_at TEXT NOT NULL,
+                    PRIMARY KEY (tenant_id, component_id, environment)
+                );
+                CREATE TABLE IF NOT EXISTS release_sagas (
+                    tenant_id TEXT NOT NULL,
+                    saga_id TEXT NOT NULL,
+                    subject_id TEXT NOT NULL,
+                    mission_id TEXT NOT NULL,
+                    component_id TEXT NOT NULL,
+                    source_task_id TEXT NOT NULL,
+                    source_effect_id TEXT NOT NULL,
+                    grant_id TEXT NOT NULL,
+                    release_id TEXT NOT NULL,
+                    deployment_id TEXT NOT NULL,
+                    environment TEXT NOT NULL,
+                    artifact_json TEXT NOT NULL,
+                    recipe_id TEXT NOT NULL,
+                    recipe_digest TEXT NOT NULL,
+                    target_revision INTEGER NOT NULL,
+                    stage_index INTEGER NOT NULL,
+                    state TEXT NOT NULL,
+                    revision INTEGER NOT NULL,
+                    created_at TEXT NOT NULL,
+                    updated_at TEXT NOT NULL,
+                    PRIMARY KEY (tenant_id, saga_id),
+                    UNIQUE (tenant_id, deployment_id),
+                    FOREIGN KEY (recipe_id) REFERENCES release_recipes(recipe_id)
+                );
+                CREATE TABLE IF NOT EXISTS release_effect_intents (
+                    tenant_id TEXT NOT NULL,
+                    saga_id TEXT NOT NULL,
+                    stage_index INTEGER NOT NULL,
+                    stage_id TEXT NOT NULL,
+                    operation_id TEXT NOT NULL,
+                    effect_id TEXT NOT NULL,
+                    job_id TEXT,
+                    state TEXT NOT NULL,
+                    receipt_id TEXT,
+                    receipt_json TEXT,
+                    created_at TEXT NOT NULL,
+                    updated_at TEXT NOT NULL,
+                    PRIMARY KEY (tenant_id, saga_id, stage_index),
+                    UNIQUE (tenant_id, effect_id),
+                    FOREIGN KEY (tenant_id, saga_id)
+                      REFERENCES release_sagas(tenant_id, saga_id)
+                );
+                CREATE TABLE IF NOT EXISTS release_deployment_facts (
+                    tenant_id TEXT NOT NULL,
+                    fact_id INTEGER PRIMARY KEY AUTOINCREMENT,
+                    subject_id TEXT NOT NULL,
+                    mission_id TEXT NOT NULL,
+                    component_id TEXT NOT NULL,
+                    task_id TEXT NOT NULL,
+                    grant_id TEXT NOT NULL,
+                    job_id TEXT NOT NULL,
+                    deployment_id TEXT NOT NULL,
+                    release_id TEXT NOT NULL,
+                    artifact_json TEXT NOT NULL,
+                    saga_id TEXT NOT NULL,
+                    stage_id TEXT NOT NULL,
+                    operation_id TEXT NOT NULL,
+                    effect_id TEXT NOT NULL,
+                    receipt_id TEXT NOT NULL,
+                    observed_json TEXT NOT NULL,
+                    created_at TEXT NOT NULL,
+                    UNIQUE (tenant_id, effect_id, receipt_id),
+                    FOREIGN KEY (tenant_id, saga_id)
+                      REFERENCES release_sagas(tenant_id, saga_id)
+                );
+                """
+            )
+            connection.execute("INSERT OR IGNORE INTO release_schema_meta(domain,version) VALUES('release',2)")
+
+    def close(self) -> None:
+        """Compatibility hook; connections are transaction-scoped."""
+
+    def _authorize(self, tenant_id: str, subject_id: str, component_id: str, environment: str, action: str) -> None:
+        try:
+            authorized=self.target_authorizer(tenant_id,subject_id,component_id,environment,action)
+        except Exception as exc:
+            raise ReleaseAuthorizationError("deployment target authorization unavailable") from exc
+        if authorized is not True:
+            raise ReleaseAuthorizationError("deployment target authorization denied")
+
+    def register_recipe(self, recipe_id: str, stages: Sequence[Mapping[str, Any]]) -> dict[str, Any]:
+        recipe_id = _required(recipe_id, "recipe_id")
+        if not isinstance(stages, Sequence) or isinstance(stages, (str, bytes)) or not stages:
+            raise ValueError("recipe stages must be a non-empty sequence")
+        normalized = []
+        stage_ids = set()
+        for item in stages:
+            if not isinstance(item, Mapping) or set(item) - {"stage_id", "operation_id", "parameters"}:
+                raise ValueError("invalid recipe stage")
+            stage_id = _required(item.get("stage_id"), "stage_id")
+            operation_id = _required(item.get("operation_id"), "operation_id")
+            if stage_id in stage_ids:
+                raise ValueError("duplicate recipe stage_id")
+            stage_ids.add(stage_id)
+            parameters = item.get("parameters", {})
+            if not isinstance(parameters, Mapping):
+                raise ValueError("stage parameters must be an object")
+            normalized.append({"stage_id": stage_id, "operation_id": operation_id, "parameters": dict(parameters)})
+        stages_json = _json(normalized)
+        digest = _recipe_digest(normalized)
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            existing = connection.execute("SELECT * FROM release_recipes WHERE recipe_id=?", (recipe_id,)).fetchone()
+            if existing:
+                if existing["recipe_digest"] != digest:
+                    raise ReleaseConflict("recipe_id already has different immutable stages")
+            else:
+                connection.execute("INSERT INTO release_recipes VALUES(?,?,?,?)", (recipe_id, digest, stages_json, _now()))
+        return {"recipe_id": recipe_id, "recipe_digest": digest, "stages": normalized}
+
+    def set_target(
+        self,
+        tenant_id: str,
+        subject_id: str,
+        component_id: str,
+        environment: str,
+        release_id: str,
+        artifact: Any,
+        *,
+        expected_revision: int | None,
+        stage: str = "STAGED",
+        source_revision: str | None = None,
+        observed_main_revision: str | None = None,
+        rollback_release_id: str | None = None,
+        rollback_artifact: Any | None = None,
+        rollback_compatible: bool = False,
+    ) -> EnvironmentDeploymentTarget:
+        tenant_id, subject_id, component_id, environment, release_id = map(
+            lambda pair: _required(pair[0], pair[1]),
+            ((tenant_id,"tenant_id"),(subject_id,"subject_id"),(component_id,"component_id"),(environment,"environment"),(release_id,"release_id")),
+        )
+        self._authorize(tenant_id,subject_id,component_id,environment,"write")
+        if stage not in self.TARGET_STAGES:
+            raise ValueError("invalid target stage")
+        if expected_revision is not None and (not isinstance(expected_revision, int) or isinstance(expected_revision, bool) or expected_revision < 0):
+            raise ValueError("invalid expected_revision")
+        if type(rollback_compatible) is not bool:
+            raise ValueError("rollback_compatible must be boolean")
+        artifact_json = canonical_artifact(artifact)
+        try:
+            linked_release = self.lineage.get_release_for_component(tenant_id, component_id, release_id)
+        except KeyError as exc:
+            raise ReleaseConflict("deployment target release has no lineage") from exc
+        if canonical_artifact(linked_release["artifact"]) != artifact_json:
+            raise ReleaseConflict("deployment target artifact does not match release")
+        rollback_artifact_json = canonical_artifact(rollback_artifact) if rollback_artifact is not None else None
+        source_revision = _required(source_revision, "source_revision") if source_revision else None
+        observed_main_revision = _required(observed_main_revision, "observed_main_revision") if observed_main_revision else None
+        rollback_release_id = _required(rollback_release_id, "rollback_release_id") if rollback_release_id else None
+        if (rollback_release_id is None) != (rollback_artifact_json is None):
+            raise ValueError("rollback release and artifact must be supplied together")
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            current = connection.execute(
+                "SELECT * FROM release_targets WHERE tenant_id=? AND component_id=? AND environment=?",
+                (tenant_id, component_id, environment),
+            ).fetchone()
+            if current is None:
+                if expected_revision is not None:
+                    raise ReleaseConflict("expected revision does not match absent target")
+                if stage == "ROLLBACK_STAGED":
+                    raise ReleaseConflict("rollback requires a current target")
+                revision = 1
+                previous_release_id = previous_artifact_json = None
+            else:
+                if expected_revision != current["revision"]:
+                    raise ReleaseConflict("expected revision does not match target")
+                if stage == "ROLLBACK_STAGED":
+                    if not current["rollback_compatible"]:
+                        raise ReleaseConflict("current target has no compatible rollback")
+                    if release_id != current["rollback_release_id"] or artifact_json != current["rollback_artifact_json"]:
+                        raise ReleaseConflict("rollback target does not match compatible rollback binding")
+                revision = current["revision"] + 1
+                previous_release_id = current["release_id"]
+                previous_artifact_json = current["artifact_json"]
+                if rollback_compatible and rollback_release_id is None:
+                    rollback_release_id = previous_release_id
+                    rollback_artifact_json = previous_artifact_json
+            if rollback_compatible and current is not None and rollback_release_id is None:
+                raise ReleaseConflict("compatible rollback requires a previous target")
+            now = _now()
+            connection.execute(
+                """INSERT INTO release_targets VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
+                   ON CONFLICT(tenant_id,component_id,environment) DO UPDATE SET
+                     release_id=excluded.release_id, artifact_json=excluded.artifact_json,
+                     revision=excluded.revision, stage=excluded.stage,
+                     source_revision=excluded.source_revision,
+                     observed_main_revision=excluded.observed_main_revision,
+                     previous_release_id=excluded.previous_release_id,
+                     previous_artifact_json=excluded.previous_artifact_json,
+                     rollback_release_id=excluded.rollback_release_id,
+                     rollback_artifact_json=excluded.rollback_artifact_json,
+                     rollback_compatible=excluded.rollback_compatible,
+                     updated_by_subject_id=excluded.updated_by_subject_id,
+                     updated_at=excluded.updated_at""",
+                (tenant_id,component_id,environment,release_id,artifact_json,revision,stage,
+                 source_revision,observed_main_revision,previous_release_id,previous_artifact_json,
+                 rollback_release_id,rollback_artifact_json,int(rollback_compatible),subject_id,now),
+            )
+            row = connection.execute(
+                "SELECT * FROM release_targets WHERE tenant_id=? AND component_id=? AND environment=?",
+                (tenant_id,component_id,environment),
+            ).fetchone()
+            return self._target(row)
+
+    def get_target(self, tenant_id: str, subject_id: str, component_id: str, environment: str) -> EnvironmentDeploymentTarget:
+        tenant_id,subject_id,component_id,environment=(
+            _required(tenant_id,"tenant_id"),_required(subject_id,"subject_id"),
+            _required(component_id,"component_id"),_required(environment,"environment"),
+        )
+        self._authorize(tenant_id,subject_id,component_id,environment,"read")
+        with self._connect() as connection:
+            row = connection.execute(
+                "SELECT * FROM release_targets WHERE tenant_id=? AND component_id=? AND environment=?",
+                (tenant_id,component_id,environment),
+            ).fetchone()
+        if row is None:
+            raise KeyError("deployment target not found")
+        return self._target(row)
+
+    @staticmethod
+    def _target(row: sqlite3.Row) -> EnvironmentDeploymentTarget:
+        return EnvironmentDeploymentTarget(
+            tenant_id=row["tenant_id"], component_id=row["component_id"], environment=row["environment"],
+            release_id=row["release_id"], artifact=decode_artifact(row["artifact_json"]), revision=row["revision"],
+            stage=row["stage"], source_revision=row["source_revision"], observed_main_revision=row["observed_main_revision"],
+            previous_release_id=row["previous_release_id"],
+            previous_artifact=decode_artifact(row["previous_artifact_json"]) if row["previous_artifact_json"] else None,
+            rollback_release_id=row["rollback_release_id"],
+            rollback_artifact=decode_artifact(row["rollback_artifact_json"]) if row["rollback_artifact_json"] else None,
+            rollback_compatible=bool(row["rollback_compatible"]),
+            updated_by_subject_id=row["updated_by_subject_id"], updated_at=row["updated_at"],
+        )
+
+    def start_saga(
+        self, tenant_id: str, subject_id: str, mission_id: str, component_id: str, saga_id: str,
+        release_id: str, deployment_id: str, environment: str, artifact: Any,
+        recipe_id: str, *, expected_target_revision: int,
+    ) -> dict[str, Any]:
+        tenant_id,subject_id,mission_id,component_id,saga_id,release_id,deployment_id,environment,recipe_id=map(
+            lambda pair:_required(pair[0],pair[1]),
+            ((tenant_id,"tenant_id"),(subject_id,"subject_id"),(mission_id,"mission_id"),(component_id,"component_id"),(saga_id,"saga_id"),
+             (release_id,"release_id"),(deployment_id,"deployment_id"),(environment,"environment"),(recipe_id,"recipe_id")),
+        )
+        if not isinstance(expected_target_revision,int) or isinstance(expected_target_revision,bool) or expected_target_revision < 1:
+            raise ValueError("invalid expected_target_revision")
+        self._authorize(tenant_id,subject_id,component_id,environment,"deploy")
+        artifact_json=canonical_artifact(artifact)
+        target=self.get_target(tenant_id,subject_id,component_id,environment)
+        if target.revision != expected_target_revision:
+            raise ReleaseConflict("expected target revision does not match")
+        if target.stage not in {"STAGED","ROLLBACK_STAGED"}:
+            raise ReleaseConflict("deployment target is not staged")
+        if target.release_id != release_id or canonical_artifact(target.artifact) != artifact_json:
+            raise ReleaseConflict("saga does not match deployment target")
+        graph=self.lineage.explain(tenant_id,subject_id,mission_id)
+        release=next((item for item in graph["releases"] if item["release_id"] == release_id),None)
+        if release is None or release["component_id"] != component_id or canonical_artifact(release["artifact"]) != artifact_json:
+            raise ReleaseConflict("release has no exact source lineage")
+        source_task=next((item for item in graph["tasks"] if item["task_id"] == release["source_task_id"]),None)
+        if source_task is None or source_task["component_id"] != component_id:
+            raise ReleaseConflict("release source Task component lineage missing")
+        with self._connect() as connection:
+            recipe=connection.execute("SELECT * FROM release_recipes WHERE recipe_id=?",(recipe_id,)).fetchone()
+            if recipe is None:
+                raise ReleaseConflict("recipe not found")
+        # The relationship is durable before saga admission and is idempotent on retry.
+        self.lineage.link_deployment(
+            tenant_id,subject_id,mission_id,release_id,deployment_id,component_id,environment,
+            expected_target_revision,decode_artifact(artifact_json),
+            metadata={"saga_id":saga_id,"recipe_id":recipe_id,"recipe_digest":recipe["recipe_digest"]},
+        )
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            existing=connection.execute("SELECT * FROM release_sagas WHERE tenant_id=? AND saga_id=?",(tenant_id,saga_id)).fetchone()
+            expected=(subject_id,mission_id,component_id,release["source_task_id"],release["source_effect_id"],source_task["grant_id"],release_id,deployment_id,environment,artifact_json,recipe_id,recipe["recipe_digest"],expected_target_revision)
+            if existing:
+                actual=tuple(existing[key] for key in ("subject_id","mission_id","component_id","source_task_id","source_effect_id","grant_id","release_id","deployment_id","environment","artifact_json","recipe_id","recipe_digest","target_revision"))
+                if actual != expected:
+                    raise ReleaseConflict("saga_id already has different immutable binding")
+                return self._saga(connection,existing)
+            collision=connection.execute("SELECT saga_id FROM release_sagas WHERE tenant_id=? AND deployment_id=?",(tenant_id,deployment_id)).fetchone()
+            if collision:
+                raise ReleaseConflict("deployment_id already has a different saga")
+            now=_now()
+            connection.execute(
+                "INSERT INTO release_sagas VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
+                (tenant_id,saga_id,subject_id,mission_id,component_id,release["source_task_id"],release["source_effect_id"],source_task["grant_id"],release_id,deployment_id,environment,artifact_json,
+                 recipe_id,recipe["recipe_digest"],expected_target_revision,0,"RUNNING",0,now,now),
+            )
+            row=connection.execute("SELECT * FROM release_sagas WHERE tenant_id=? AND saga_id=?",(tenant_id,saga_id)).fetchone()
+            return self._saga(connection,row)
+
+    def get_saga(self, tenant_id: str, subject_id: str, saga_id: str) -> dict[str, Any]:
+        with self._connect() as connection:
+            row=connection.execute("SELECT * FROM release_sagas WHERE tenant_id=? AND saga_id=?",(_required(tenant_id,"tenant_id"),_required(saga_id,"saga_id"))).fetchone()
+            if row is None:
+                raise KeyError("release saga not found")
+            if row["subject_id"] != _required(subject_id,"subject_id"):
+                raise ReleaseAuthorizationError("release saga subject denied")
+            return self._saga(connection,row)
+
+    @staticmethod
+    def _stages(connection: sqlite3.Connection, recipe_id: str) -> list[dict[str, Any]]:
+        row=connection.execute("SELECT stages_json FROM release_recipes WHERE recipe_id=?",(recipe_id,)).fetchone()
+        if row is None:
+            raise ReleaseConflict("persisted recipe missing")
+        return json.loads(row["stages_json"])
+
+    def _saga(self, connection: sqlite3.Connection, row: sqlite3.Row) -> dict[str, Any]:
+        stages=self._stages(connection,row["recipe_id"])
+        index=row["stage_index"]
+        return {
+            "tenant_id":row["tenant_id"],"subject_id":row["subject_id"],"mission_id":row["mission_id"],
+            "component_id":row["component_id"],"source_task_id":row["source_task_id"],
+            "source_effect_id":row["source_effect_id"],"grant_id":row["grant_id"],
+            "saga_id":row["saga_id"],"release_id":row["release_id"],"deployment_id":row["deployment_id"],
+            "environment":row["environment"],"artifact":decode_artifact(row["artifact_json"]),
+            "recipe_id":row["recipe_id"],"recipe_digest":row["recipe_digest"],
+            "target_revision":row["target_revision"],"stage_index":index,
+            "stage_id":stages[index]["stage_id"] if index < len(stages) else None,
+            "state":row["state"],"revision":row["revision"],"created_at":row["created_at"],"updated_at":row["updated_at"],
+        }
+
+    def advance_saga(
+        self, tenant_id: str, subject_id: str, saga_id: str, expected_revision: int,
+        operation_adapter: Any,
+    ) -> dict[str, Any]:
+        tenant_id,subject_id,saga_id=(
+            _required(tenant_id,"tenant_id"),_required(subject_id,"subject_id"),_required(saga_id,"saga_id")
+        )
+        if not isinstance(expected_revision,int) or isinstance(expected_revision,bool) or expected_revision < 0:
+            raise ValueError("invalid expected_revision")
+        prepare=getattr(operation_adapter,"prepare",None)
+        execute=getattr(operation_adapter,"execute",None)
+        if not callable(prepare) or not callable(execute):
+            raise ValueError("governed operation adapter requires prepare and execute")
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            saga=connection.execute(
+                "SELECT * FROM release_sagas WHERE tenant_id=? AND saga_id=?",(tenant_id,saga_id)
+            ).fetchone()
+            if saga is None:
+                raise KeyError("release saga not found")
+            if saga["subject_id"] != subject_id:
+                raise ReleaseAuthorizationError("saga belongs to different subject")
+            self._authorize(tenant_id,subject_id,saga["component_id"],saga["environment"],"deploy")
+            if saga["revision"] != expected_revision:
+                raise ReleaseConflict("expected revision does not match saga")
+            if saga["state"] == "COMPLETED":
+                return self._saga(connection,saga)
+            stages=self._stages(connection,saga["recipe_id"])
+            stage=stages[saga["stage_index"]]
+            effect_id=f"release:{saga_id}:{saga['stage_index']}:{stage['stage_id']}"
+            intent=connection.execute(
+                "SELECT * FROM release_effect_intents WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                (tenant_id,saga_id,saga["stage_index"]),
+            ).fetchone()
+            if intent is None:
+                now=_now()
+                connection.execute(
+                    "INSERT INTO release_effect_intents VALUES(?,?,?,?,?,?,?,?,?,?,?,?)",
+                    (tenant_id,saga_id,saga["stage_index"],stage["stage_id"],stage["operation_id"],effect_id,
+                     None,"PENDING_JOB",None,None,now,now),
+                )
+            elif (intent["effect_id"],intent["stage_id"],intent["operation_id"]) != (
+                effect_id,stage["stage_id"],stage["operation_id"]
+            ):
+                raise ReleaseConflict("persisted stage effect identity mismatch")
+        operation={
+            "tenant_id":tenant_id,"subject_id":subject_id,"mission_id":saga["mission_id"],
+            "component_id":saga["component_id"],"task_id":saga["source_task_id"],
+            "source_task_id":saga["source_task_id"],"source_effect_id":saga["source_effect_id"],
+            "grant_id":saga["grant_id"],"saga_id":saga_id,
+            "deployment_id":saga["deployment_id"],"release_id":saga["release_id"],
+            "environment":saga["environment"],"artifact":decode_artifact(saga["artifact_json"]),
+            "target_revision":saga["target_revision"],"stage_index":saga["stage_index"],
+            "stage_id":stage["stage_id"],"operation_id":stage["operation_id"],"effect_id":effect_id,
+            "parameters":stage.get("parameters",{}),
+        }
+        with self._connect() as connection:
+            intent=connection.execute(
+                "SELECT * FROM release_effect_intents WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                (tenant_id,saga_id,saga["stage_index"]),
+            ).fetchone()
+        job_id=intent["job_id"]
+        if job_id is None:
+            prepared=prepare(dict(operation))
+            job_id=prepared.get("job_id") if isinstance(prepared,Mapping) else prepared
+            job_id=_required(job_id,"prepared job_id")
+            # This is the first point where the relationship graph may name a Job:
+            # link_effect independently resolves the configured real Job authority.
+            self.lineage.link_effect(
+                tenant_id,subject_id,saga["mission_id"],saga["source_task_id"],effect_id,job_id,
+                source_effect_id=saga["source_effect_id"],
+                metadata={"deployment_id":saga["deployment_id"],"release_id":saga["release_id"],
+                          "component_id":saga["component_id"],"stage_id":stage["stage_id"]},
+            )
+            with self._connect() as connection:
+                connection.execute("BEGIN IMMEDIATE")
+                current=connection.execute(
+                    "SELECT revision,stage_index FROM release_sagas WHERE tenant_id=? AND saga_id=?",
+                    (tenant_id,saga_id),
+                ).fetchone()
+                if current is None or current["revision"] != expected_revision or current["stage_index"] != saga["stage_index"]:
+                    raise ReleaseConflict("expected revision changed before Job binding")
+                bound=connection.execute(
+                    "SELECT job_id FROM release_effect_intents WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                    (tenant_id,saga_id,saga["stage_index"]),
+                ).fetchone()
+                if bound["job_id"] not in (None,job_id):
+                    raise ReleaseConflict("stage effect already bound to different Job")
+                connection.execute(
+                    "UPDATE release_effect_intents SET job_id=?,state='JOB_LINKED',updated_at=? WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                    (job_id,_now(),tenant_id,saga_id,saga["stage_index"]),
+                )
+        operation["job_id"]=job_id
+        with self._connect() as connection:
+            intent=connection.execute(
+                "SELECT * FROM release_effect_intents WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                (tenant_id,saga_id,saga["stage_index"]),
+            ).fetchone()
+        if intent["receipt_json"]:
+            raw_receipt=json.loads(intent["receipt_json"])
+        elif intent["state"] == "EFFECT_UNKNOWN":
+            reconcile=getattr(operation_adapter,"reconcile",None)
+            if not callable(reconcile):
+                raise ReleaseReconciliationRequired("RECONCILIATION_REQUIRED: adapter readback unavailable")
+            raw_receipt=reconcile(dict(operation))
+        else:
+            try:
+                raw_receipt=execute(dict(operation))
+            except Exception:
+                with self._connect() as connection:
+                    connection.execute(
+                        "UPDATE release_effect_intents SET state='EFFECT_UNKNOWN',updated_at=? WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                        (_now(),tenant_id,saga_id,saga["stage_index"]),
+                    )
+                raise
+        if not isinstance(raw_receipt,Mapping):
+            with self._connect() as connection:
+                connection.execute(
+                    "UPDATE release_effect_intents SET state='EFFECT_UNKNOWN',updated_at=? WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                    (_now(),tenant_id,saga_id,saga["stage_index"]),
+                )
+            raise ReleaseVerificationError("operation adapter receipt must be an object")
+        try:
+            unverified_receipt_json=_json(dict(raw_receipt))
+        except (TypeError,ValueError) as exc:
+            raise ReleaseVerificationError("operation adapter receipt must be canonical JSON") from exc
+        if len(unverified_receipt_json.encode("utf-8")) > 262_144:
+            raise ReleaseVerificationError("operation adapter receipt is too large")
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            current=connection.execute(
+                "SELECT revision,stage_index FROM release_sagas WHERE tenant_id=? AND saga_id=?",(tenant_id,saga_id)
+            ).fetchone()
+            if current is None or current["revision"] != expected_revision or current["stage_index"] != saga["stage_index"]:
+                raise ReleaseConflict("expected revision changed before receipt persistence")
+            connection.execute(
+                "UPDATE release_effect_intents SET state='RECEIPT_UNVERIFIED',receipt_json=?,updated_at=? WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                (unverified_receipt_json,_now(),tenant_id,saga_id,saga["stage_index"]),
+            )
+        expected={key:operation[key] for key in (
+            "tenant_id","subject_id","component_id","task_id","source_task_id","source_effect_id","grant_id",
+            "job_id","effect_id","operation_id","deployment_id","release_id","artifact"
+        )}
+        try:
+            verified=self.receipt_verifier(raw_receipt,expected)
+        except Exception as exc:
+            raise ReleaseVerificationError("configured verifier rejected operation receipt") from exc
+        if not isinstance(verified,VerifiedReceipt):
+            raise ReleaseVerificationError("receipt_verifier must return VerifiedReceipt")
+        if verified.outcome != "SUCCEEDED":
+            raise ReleaseVerificationError("verified receipt outcome is not SUCCEEDED")
+        fields=("tenant_id","subject_id","component_id","task_id","source_task_id","source_effect_id","grant_id",
+                "job_id","effect_id","operation_id","deployment_id","release_id","artifact")
+        bindings=tuple(canonical_artifact(getattr(verified,name)) if name == "artifact" else getattr(verified,name) for name in fields)
+        expected_bindings=tuple(canonical_artifact(operation[name]) if name == "artifact" else operation[name] for name in fields)
+        if bindings != expected_bindings:
+            wrong=next(name for name,actual,wanted in zip(fields,bindings,expected_bindings) if actual != wanted)
+            raise ReleaseVerificationError(f"verified receipt {wrong} binding mismatch")
+        receipt_id=_required(verified.receipt_id,"receipt_id")
+        if not isinstance(verified.observed,Mapping):
+            raise ReleaseVerificationError("verified receipt observation must be an object")
+        observed_json=_json(dict(verified.observed))
+        with self._connect() as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            current=connection.execute("SELECT * FROM release_sagas WHERE tenant_id=? AND saga_id=?",(tenant_id,saga_id)).fetchone()
+            if current["revision"] != expected_revision or current["stage_index"] != saga["stage_index"]:
+                raise ReleaseConflict("expected revision changed before receipt commit")
+            connection.execute(
+                "UPDATE release_effect_intents SET state='VERIFIED',receipt_id=?,updated_at=? WHERE tenant_id=? AND saga_id=? AND stage_index=?",
+                (receipt_id,_now(),tenant_id,saga_id,saga["stage_index"]),
+            )
+            connection.execute(
+                """INSERT OR IGNORE INTO release_deployment_facts
+                   (tenant_id,subject_id,mission_id,component_id,task_id,grant_id,job_id,deployment_id,release_id,artifact_json,saga_id,stage_id,operation_id,effect_id,receipt_id,observed_json,created_at)
+                   VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)""",
+                (tenant_id,subject_id,saga["mission_id"],saga["component_id"],saga["source_task_id"],saga["grant_id"],job_id,
+                 saga["deployment_id"],saga["release_id"],saga["artifact_json"],saga_id,stage["stage_id"],stage["operation_id"],
+                 effect_id,receipt_id,observed_json,_now()),
+            )
+            next_index=saga["stage_index"]+1
+            state="COMPLETED" if next_index == len(stages) else "RUNNING"
+            updated=connection.execute(
+                "UPDATE release_sagas SET stage_index=?,state=?,revision=revision+1,updated_at=? WHERE tenant_id=? AND saga_id=? AND revision=?",
+                (next_index,state,_now(),tenant_id,saga_id,expected_revision),
+            )
+            if updated.rowcount != 1:
+                raise ReleaseConflict("expected revision changed")
+            row=connection.execute("SELECT * FROM release_sagas WHERE tenant_id=? AND saga_id=?",(tenant_id,saga_id)).fetchone()
+            return self._saga(connection,row)
+
+
+    def deployment_facts(self, tenant_id: str, subject_id: str, component_id: str, deployment_id: str) -> list[dict[str, Any]]:
+        tenant_id,subject_id,component_id,deployment_id=(
+            _required(tenant_id,"tenant_id"),_required(subject_id,"subject_id"),
+            _required(component_id,"component_id"),_required(deployment_id,"deployment_id"),
+        )
+        with self._connect() as connection:
+            saga=connection.execute(
+                "SELECT environment,subject_id,component_id FROM release_sagas WHERE tenant_id=? AND deployment_id=?",
+                (tenant_id,deployment_id),
+            ).fetchone()
+            if saga is None or saga["subject_id"] != subject_id or saga["component_id"] != component_id:
+                raise ReleaseAuthorizationError("deployment facts scope denied")
+            self._authorize(tenant_id,subject_id,component_id,saga["environment"],"read")
+            rows=connection.execute(
+                "SELECT * FROM release_deployment_facts WHERE tenant_id=? AND subject_id=? AND component_id=? AND deployment_id=? ORDER BY fact_id",
+                (tenant_id,subject_id,component_id,deployment_id),
+            ).fetchall()
+        return [{**{key:row[key] for key in row.keys() if not key.endswith("_json")},
+                 "artifact":decode_artifact(row["artifact_json"]),"observed":json.loads(row["observed_json"])} for row in rows]
+
+    def record_acceptance(
+        self, tenant_id: str, subject_id: str, mission_id: str, component_id: str, acceptance_id: str,
+        deployment_id: str, release_id: str, artifact: Any, accepted: bool, *,
+        evidence: Any,
+        verifier: Callable[[Any, Mapping[str, Any]], VerifiedAcceptanceEvidence],
+    ) -> dict[str, Any]:
+        with self._connect() as connection:
+            saga=connection.execute(
+                "SELECT environment,subject_id,component_id FROM release_sagas WHERE tenant_id=? AND deployment_id=?",
+                (tenant_id,deployment_id),
+            ).fetchone()
+        if saga is None or saga["subject_id"] != subject_id or saga["component_id"] != component_id:
+            raise ReleaseAuthorizationError("acceptance deployment scope denied")
+        self._authorize(tenant_id,subject_id,component_id,saga["environment"],"accept")
+        return self.lineage.record_acceptance(
+            tenant_id,subject_id,mission_id,component_id,acceptance_id,deployment_id,release_id,
+            artifact,accepted,evidence=evidence,verifier=verifier,
+        )
+
+
+__all__ = [
+    "EnvironmentDeploymentTarget", "ReleaseAuthorizationError", "ReleaseConflict", "ReleaseError", "ReleaseLedger",
+    "ReleaseReconciliationRequired", "ReleaseVerificationError", "VerifiedReceipt",
+]

active-runtime/app/aios_baseline/runtime_contract.py

@@ -0,0 +1,375 @@
+"""Pure validation and deployment-truth evaluation for runtime contracts.
+
+Runtime contracts describe stable structure.  A release-owned deployment target
+is supplied separately so that changing a release does not rewrite structural
+configuration or turn a source branch into runtime evidence.
+"""
+from __future__ import annotations
+
+from copy import deepcopy
+from datetime import datetime, timezone
+import re
+from pathlib import PurePosixPath
+from typing import Any, Mapping, Sequence
+
+
+CONTRACT_SCHEMA = "aios.runtime-contract.v1"
+LIFECYCLES = frozenset({"active", "candidate", "legacy", "example"})
+_DYNAMIC_FIELDS = frozenset(
+    {"desired", "desired_commit", "desired_release", "desired_target", "desired_targets"}
+)
+_SECRET_FIELDS = frozenset(
+    {"secret", "secret_bytes", "token", "password", "private_key", "credential_value", "value"}
+)
+_DIGEST = re.compile(r"^(?:sha256:)?[0-9a-fA-F]{64}$")
+_SAFE_SYMBOLIC_REF = re.compile(r"^[A-Za-z][A-Za-z0-9+.-]*:[/A-Za-z0-9_.:@+-]+$")
+
+
+def _error(code: str, path: str = "") -> ValueError:
+    return ValueError(f"{code}:{path}" if path else code)
+
+
+def _nonempty_string(value: object, path: str) -> str:
+    if not isinstance(value, str) or not value.strip():
+        raise _error("field_invalid", path)
+    return value.strip()
+
+
+def _positive_int(value: object, path: str) -> int:
+    if isinstance(value, bool) or not isinstance(value, int) or value < 1:
+        raise _error("field_invalid", path)
+    return value
+
+
+def _reject_dynamic_fields(value: object, path: str = "contract") -> None:
+    if isinstance(value, Mapping):
+        for key, child in value.items():
+            if not isinstance(key, str):
+                raise _error("field_name_invalid", path)
+            child_path = f"{path}.{key}"
+            if key.lower() in _DYNAMIC_FIELDS:
+                raise _error("dynamic_field_forbidden", child_path)
+            _reject_dynamic_fields(child, child_path)
+    elif isinstance(value, Sequence) and not isinstance(value, (str, bytes, bytearray)):
+        for index, child in enumerate(value):
+            _reject_dynamic_fields(child, f"{path}[{index}]")
+
+
+def _safe_path_ref(value: object, path: str) -> str:
+    text = _nonempty_string(value, path)
+    if "\x00" in text or "\\" in text:
+        raise _error("unsafe_path_ref", path)
+    candidate = PurePosixPath(text)
+    if candidate.is_absolute() or any(part in {"", ".", ".."} for part in candidate.parts):
+        raise _error("unsafe_path_ref", path)
+    return text
+
+
+def _symbolic_ref(value: object, path: str) -> str:
+    text = _nonempty_string(value, path)
+    if "\x00" in text or ".." in text or not _SAFE_SYMBOLIC_REF.fullmatch(text):
+        raise _error("resolver_ref_invalid", path)
+    return text
+
+
+def _credential_ref(value: object, path: str) -> str:
+    text = _nonempty_string(value, path)
+    allowed = (
+        text.startswith("credential://")
+        or text.startswith("secret://")
+        or text.startswith("systemd-credential:")
+    )
+    if not allowed or "\x00" in text or ".." in text or text.startswith("/run/credentials/"):
+        raise _error("credential_ref_invalid", path)
+    return text
+
+
+def _validate_binding_group(
+    group: object,
+    group_name: str,
+    component_id: str,
+    environment: str,
+    tenant_scope: str,
+) -> dict[str, Any]:
+    if not isinstance(group, Mapping):
+        raise _error("binding_group_invalid", group_name)
+    normalized: dict[str, Any] = {}
+    for name, raw in group.items():
+        item_path = f"{group_name}.{name}"
+        _nonempty_string(name, f"{group_name}.name")
+        if isinstance(raw, str):
+            reference_field = (
+                "credential_ref"
+                if group_name == "credential_refs"
+                else "path_ref"
+                if group_name == "resource_refs" and ":" not in raw
+                else "resolver_ref"
+            )
+            item = {
+                "component_id": component_id,
+                "environment": environment,
+                reference_field: raw,
+            }
+        elif isinstance(raw, Mapping):
+            item = deepcopy(dict(raw))
+        else:
+            raise _error("binding_invalid", item_path)
+        if _nonempty_string(item.get("component_id"), f"{item_path}.component_id") != component_id:
+            raise _error("binding_component_mismatch", item_path)
+        if _nonempty_string(item.get("environment"), f"{item_path}.environment") != environment:
+            raise _error("binding_environment_mismatch", item_path)
+        if "tenant_scope" in item and (
+            _nonempty_string(item["tenant_scope"], f"{item_path}.tenant_scope") != tenant_scope
+        ):
+            raise _error("binding_tenant_mismatch", item_path)
+
+        reference_fields = [key for key in ("resolver_ref", "path_ref", "credential_ref") if key in item]
+        if len(reference_fields) != 1:
+            raise _error("binding_reference_invalid", item_path)
+        reference_field = reference_fields[0]
+        reference_path = f"{item_path}.{reference_field}"
+        if group_name == "credential_refs" or reference_field == "credential_ref":
+            for key in item:
+                if key.lower() in _SECRET_FIELDS:
+                    raise _error("secret_material_forbidden", f"{item_path}.{key}")
+            item[reference_field] = _credential_ref(item[reference_field], reference_path)
+        elif reference_field == "path_ref":
+            item[reference_field] = _safe_path_ref(item[reference_field], reference_path)
+        else:
+            item[reference_field] = _symbolic_ref(item[reference_field], reference_path)
+        normalized[str(name)] = item
+    return normalized
+
+
+def validate_contract(document: Mapping[str, Any]) -> dict[str, Any]:
+    """Validate and copy a stable ``aios.runtime-contract.v1`` document.
+
+    The returned mapping owns its nested containers, so callers cannot mutate the
+    source after validation.  Invalid contracts raise ``ValueError`` with a stable
+    machine-readable code prefix.
+    """
+
+    if not isinstance(document, Mapping):
+        raise _error("contract_invalid")
+    _reject_dynamic_fields(document)
+    result = deepcopy(dict(document))
+    if result.get("contract_schema") != CONTRACT_SCHEMA:
+        raise _error("contract_schema_invalid", "contract_schema")
+    result["contract_revision"] = _positive_int(result.get("contract_revision"), "contract_revision")
+    component_id = _nonempty_string(result.get("component_id"), "component_id")
+    environment = _nonempty_string(result.get("environment"), "environment")
+    result["component_id"] = component_id
+    result["environment"] = environment
+    tenant_scope = _nonempty_string(result.get("tenant_scope"), "tenant_scope")
+    result["tenant_scope"] = tenant_scope
+    lifecycle = _nonempty_string(result.get("lifecycle"), "lifecycle").lower()
+    if lifecycle not in LIFECYCLES:
+        raise _error("lifecycle_invalid", "lifecycle")
+    result["lifecycle"] = lifecycle
+
+    if "resources" in result and "resource_refs" in result:
+        raise _error("duplicate_resource_group")
+    if "resources" in result:
+        result["resource_refs"] = result.pop("resources")
+    for group_name in ("entrypoints", "bindings", "resource_refs", "credential_refs"):
+        result[group_name] = _validate_binding_group(
+            result.get(group_name), group_name, component_id, environment, tenant_scope
+        )
+
+    operations = result.get("operations")
+    if (
+        not isinstance(operations, Sequence)
+        or isinstance(operations, (str, bytes, bytearray))
+        or not operations
+    ):
+        raise _error("operations_invalid", "operations")
+    normalized_operations = [
+        _nonempty_string(operation, f"operations[{index}]")
+        for index, operation in enumerate(operations)
+    ]
+    if len(set(normalized_operations)) != len(normalized_operations):
+        raise _error("duplicate_operation", "operations")
+    result["operations"] = normalized_operations
+    return result
+
+
+def _unknown(*reasons: str) -> dict[str, Any]:
+    return {
+        "status": "UNKNOWN",
+        "state": "UNKNOWN",
+        "verification": "UNKNOWN",
+        "converged": False,
+        "reasons": list(dict.fromkeys(reasons)),
+    }
+
+
+def _drift(reasons: list[str]) -> dict[str, Any]:
+    return {
+        "status": "DRIFT",
+        "state": "DRIFT",
+        "verification": "FAILED",
+        "converged": False,
+        "reasons": list(dict.fromkeys(reasons)),
+    }
+
+
+def _parse_time(value: object) -> datetime | None:
+    if isinstance(value, datetime):
+        parsed = value
+    elif isinstance(value, str):
+        try:
+            parsed = datetime.fromisoformat(value.strip().replace("Z", "+00:00"))
+        except ValueError:
+            return None
+    else:
+        return None
+    if parsed.tzinfo is None or parsed.utcoffset() is None:
+        return None
+    return parsed.astimezone(timezone.utc)
+
+
+def _digest_value(document: Mapping[str, Any], *names: str) -> object:
+    for name in names:
+        if name in document:
+            return document[name]
+    return None
+
+
+def _valid_digest(value: object) -> bool:
+    return isinstance(value, str) and bool(_DIGEST.fullmatch(value))
+
+
+def evaluate_deployment(
+    contract: Mapping[str, Any],
+    target: Mapping[str, Any] | None,
+    observation: Mapping[str, Any] | None,
+    provenance: Mapping[str, Any] | None,
+    now: datetime | str,
+) -> dict[str, Any]:
+    """Evaluate one target using fresh runtime and provenance evidence.
+
+    Missing or malformed evidence is ``UNKNOWN``.  ``DRIFT`` is reserved for a
+    complete evidence set that proves an incompatible target or runtime fact.
+    Repository HEAD is intentionally not an input to this decision.
+    """
+
+    stable = validate_contract(contract)
+    missing: list[str] = []
+    if target is None:
+        missing.append("target_missing")
+    elif not isinstance(target, Mapping):
+        missing.append("target_invalid")
+    if observation is None:
+        missing.append("observation_missing")
+    elif not isinstance(observation, Mapping):
+        missing.append("observation_invalid")
+    if provenance is None:
+        missing.append("provenance_missing")
+    elif not isinstance(provenance, Mapping):
+        missing.append("provenance_invalid")
+    current_time = _parse_time(now)
+    if current_time is None:
+        missing.append("now_invalid")
+    if missing:
+        return _unknown(*missing)
+    assert target is not None and observation is not None and provenance is not None
+    assert current_time is not None
+
+    target_errors: list[str] = []
+    for field in ("component_id", "environment", "release_id", "deployment_id"):
+        if not isinstance(target.get(field), str) or not str(target[field]).strip():
+            target_errors.append(f"target_{field}_invalid")
+    if "tenant_scope" in target and (
+        not isinstance(target["tenant_scope"], str) or not target["tenant_scope"].strip()
+    ):
+        target_errors.append("target_tenant_scope_invalid")
+    target_artifact = target.get("artifact_digest")
+    if not _valid_digest(target_artifact):
+        target_errors.append("target_artifact_digest_invalid")
+    if isinstance(target.get("revision"), bool) or not isinstance(target.get("revision"), int) or target.get("revision", 0) < 1:
+        target_errors.append("target_revision_invalid")
+
+    observed_at = _parse_time(observation.get("observed_at"))
+    max_age = observation.get("max_age_seconds", observation.get("max_age"))
+    observed_artifact = _digest_value(
+        observation, "actual_artifact_digest", "actual_artifact", "artifact_digest"
+    )
+    observation_errors: list[str] = []
+    if observed_at is None:
+        observation_errors.append("observation_observed_at_invalid")
+    if isinstance(max_age, bool) or not isinstance(max_age, (int, float)) or max_age <= 0:
+        observation_errors.append("observation_max_age_invalid")
+    if not isinstance(observation.get("source"), str) or not observation.get("source", "").strip():
+        observation_errors.append("observation_source_invalid")
+    if not _valid_digest(observed_artifact):
+        observation_errors.append("observation_actual_artifact_invalid")
+    if not isinstance(observation.get("healthy"), bool):
+        observation_errors.append("observation_healthy_invalid")
+    for field in ("component_id", "environment", "tenant_scope", "deployment_id"):
+        if field in observation and (
+            not isinstance(observation[field], str) or not observation[field].strip()
+        ):
+            observation_errors.append(f"observation_{field}_invalid")
+    if "revision" in observation and (
+        isinstance(observation["revision"], bool)
+        or not isinstance(observation["revision"], int)
+        or observation["revision"] < 1
+    ):
+        observation_errors.append("observation_revision_invalid")
+
+    artifact_provenance = _digest_value(provenance, "artifact_digest", "artifact_hash")
+    source_provenance = _digest_value(provenance, "source_digest", "source_hash")
+    builder_provenance = _digest_value(provenance, "builder_digest", "builder_hash")
+    provenance_errors: list[str] = []
+    if not _valid_digest(artifact_provenance):
+        provenance_errors.append("provenance_artifact_digest_invalid")
+    if not _valid_digest(source_provenance):
+        provenance_errors.append("provenance_source_digest_invalid")
+    if not _valid_digest(builder_provenance):
+        provenance_errors.append("provenance_builder_digest_invalid")
+
+    evidence_errors = target_errors + observation_errors + provenance_errors
+    if evidence_errors:
+        return _unknown(*evidence_errors)
+    assert observed_at is not None and isinstance(max_age, (int, float))
+    age = (current_time - observed_at).total_seconds()
+    if age < 0:
+        return _unknown("observation_from_future")
+    if age > max_age:
+        return _unknown("observation_stale")
+
+    drift: list[str] = []
+    if target["component_id"] != stable["component_id"]:
+        drift.append("target_component_id_mismatch")
+    if target["environment"] != stable["environment"]:
+        drift.append("target_environment_mismatch")
+    if "tenant_scope" in target and target["tenant_scope"] != stable["tenant_scope"]:
+        drift.append("target_tenant_scope_mismatch")
+    if "tenant_scope" in observation and observation["tenant_scope"] != stable["tenant_scope"]:
+        drift.append("observation_tenant_scope_mismatch")
+    for field in ("component_id", "environment", "deployment_id", "revision"):
+        if field in observation and observation[field] != target[field]:
+            drift.append(f"observation_{field}_mismatch")
+    if observed_artifact != target_artifact:
+        drift.append("artifact_mismatch")
+    if artifact_provenance != target_artifact:
+        drift.append("provenance_artifact_mismatch")
+    if observation["healthy"] is False:
+        drift.append("observation_unhealthy")
+    if drift:
+        return _drift(drift)
+    return {
+        "status": "VERIFIED",
+        "state": "CONVERGED",
+        "verification": "VERIFIED",
+        "converged": True,
+        "reasons": [],
+        "component_id": target["component_id"],
+        "environment": target["environment"],
+        "release_id": target["release_id"],
+        "deployment_id": target["deployment_id"],
+        "artifact_digest": target_artifact,
+        "revision": target["revision"],
+        "observed_at": observation["observed_at"],
+        "observation_source": observation["source"],
+    }

active-runtime/app/aios_baseline/service.py

@@ -0,0 +1,450 @@
+"""Thin authenticated application service over existing TaskPlaneStore and JobStore.
+
+This module owns no second Task lifecycle store. Added task runtime columns live
+in the supplied Task authority database; the lineage ledger owns only relations.
+The built-in host adapter is READ_ONLY. Mutating operations require separately
+registered governed adapters with receiver fencing/readback, never arbitrary argv.
+"""
+from __future__ import annotations
+from dataclasses import dataclass
+from contextlib import contextmanager
+from datetime import datetime,timezone
+import base64
+import json
+import re
+import sqlite3
+import threading
+import time
+from pathlib import Path
+from typing import Mapping
+
+from task_plane.models import TaskPlan,WorkerRegistration,ProbeEvidence,ProbeOutcome,Budget
+from task_plane.errors import TaskPlaneHTTPError
+from aios_gitops_job_controller import GitOpsJobController,JobStore,JobState,JobError
+from .evidence import ReceiptSigner,canonical,digest
+from .runtime_contract import validate_contract
+from .worker_policy import eligible
+from .authorization import AuthorizationError
+from .host import HostError
+
+
+class ServiceError(RuntimeError):
+    def __init__(self,code,status=409):
+        super().__init__(code)
+        self.code=code
+        self.status=status
+
+
+@dataclass(frozen=True)
+class Identity:
+    tenant_id: str
+    subject_id: str
+    role: str
+    worker_id: str | None=None
+
+
+class BaselineService:
+    def __init__(self,store,job_root,authorization,contracts,operations,worker_profiles,host,lineage,machine_key,
+                 *,machine_key_id='baseline-machine',trusted_receipt_keys=None):
+        self.store=store
+        self.signer=ReceiptSigner(machine_key,key_id=machine_key_id,trusted_public_keys=trusted_receipt_keys)
+        self.jobs=GitOpsJobController(JobStore(Path(job_root)),generic_receipt_verifier=self.signer.verify)
+        self.authorization=authorization
+        self.contracts={}
+        for entry in contracts:
+            value=validate_contract(entry)
+            key=(value['tenant_scope'],value['environment'],value['component_id'])
+            if key in self.contracts: raise ServiceError('CONTRACT_DUPLICATE')
+            self.contracts[key]=value
+        self.operations=operations
+        self.worker_profiles=dict(worker_profiles)
+        self.host=host
+        self.lineage=lineage
+        self.storage_blocked=False
+        self._execute_lock=threading.Lock()
+        with self.store._transaction():
+            self.store.conn.execute('''CREATE TABLE IF NOT EXISTS baseline_task_runtime(
+                task_id TEXT PRIMARY KEY REFERENCES tasks(task_id),ready_at REAL,
+                blocker_code TEXT,job_id TEXT,effect_id TEXT NOT NULL UNIQUE)''')
+            self.store.conn.execute('''CREATE TABLE IF NOT EXISTS baseline_worker_policy(
+                worker_id TEXT PRIMARY KEY,policy_json TEXT NOT NULL)''')
+        self.store.probe_attestation_verifier=self._verify_probe
+
+    def _user(self,identity):
+        if not isinstance(identity,Identity) or identity.role not in {'user','owner'}:
+            raise ServiceError('USER_IDENTITY_REQUIRED',403)
+
+    def _worker(self,identity):
+        if not isinstance(identity,Identity) or identity.role!='worker':
+            raise ServiceError('WORKER_IDENTITY_REQUIRED',403)
+        profile=self.worker_profiles.get(identity.worker_id)
+        if not profile or profile.identity!=identity.subject_id or identity.tenant_id not in profile.tenant_scope:
+            raise ServiceError('WORKER_SCOPE_DENIED',403)
+        return profile
+
+    def _task(self,identity,task_id):
+        task=self.store.get_task(task_id)
+        meta=task.task_plan.metadata.get('baseline',{})
+        if meta.get('tenant_id')!=identity.tenant_id or meta.get('subject_id')!=identity.subject_id:
+            raise ServiceError('TASK_SCOPE_DENIED',403)
+        return task
+
+    def _scope(self,task):
+        meta=task.task_plan.metadata['baseline']
+        return {**{key:meta[key] for key in ('tenant_id','subject_id','mission_id','operation','component_id','environment')},'task_id':task.task_id}
+
+    def _principal(self,task):
+        meta=task.task_plan.metadata['baseline']
+        return self.authorization.issue_principal(meta['grant_id'],ttl_seconds=60,**self._scope(task))
+
+    def _fresh_write(self):
+        if self.storage_blocked: raise ServiceError('STORAGE_RECOVERY_REQUIRED',503)
+        try:
+            with self.store._transaction():
+                self.store.conn.execute('UPDATE baseline_task_runtime SET blocker_code=blocker_code WHERE 0')
+        except (sqlite3.Error,OSError) as exc:
+            self.storage_blocked=True
+            raise ServiceError('TASK_STORAGE_UNAVAILABLE',503) from exc
+
+    def submit_goal(self,identity,request,*,idempotency_key):
+        self._user(identity)
+        allowed={'mission_id','grant_id','operation','component_id','environment','inputs','intent'}
+        if type(request) is not dict or set(request)!=allowed or not isinstance(idempotency_key,str) or not 1<=len(idempotency_key)<=128:
+            raise ServiceError('GOAL_SCHEMA_INVALID',400)
+        if any(not isinstance(request[key],str) or not request[key] or len(request[key])>2048 for key in allowed-{'inputs'}):
+            raise ServiceError('GOAL_SCHEMA_INVALID',400)
+        if request['inputs']!={}: raise ServiceError('OPERATION_INPUT_SCHEMA_INVALID',400)
+        if not re.fullmatch(r'[A-Za-z0-9][A-Za-z0-9_.:-]{0,127}',request['mission_id']): raise ServiceError('MISSION_ID_INVALID',400)
+        operation=self.operations.get(request['operation'])
+        if operation.handler_ref!='host.service_status' or operation.effect_class!='READ_ONLY' or operation.required_permissions!=(operation.operation_id,):
+            raise ServiceError('REGISTERED_HANDLER_UNAVAILABLE',503)
+        contract=self.contracts.get((identity.tenant_id,request['environment'],request['component_id']))
+        if not contract or contract['lifecycle']!='active' or request['operation'] not in contract['operations']:
+            raise ServiceError('CONTRACT_OPERATION_UNAVAILABLE',403)
+        host_key=identity.tenant_id+':'+request['environment']+':'+request['component_id']
+        if host_key not in self.host.bindings: raise ServiceError('HOST_BINDING_UNAVAILABLE',503)
+        key=digest({'tenant':identity.tenant_id,'subject':identity.subject_id,'key':idempotency_key})
+        task_id='task-'+key[:40]
+        effect_id='effect-'+digest({'tenant':identity.tenant_id,'task':task_id,'request':request})[:40]
+        meta={**request,'tenant_id':identity.tenant_id,'subject_id':identity.subject_id,'effect_id':effect_id,
+              'operation_version':operation.version,'contract_revision':contract['contract_revision']}
+        plan=TaskPlan.from_dict({'task_id':task_id,'task_type':'host.diagnostic','intent':request['intent'],
+            'issuer':{'id':identity.subject_id,'tenant_id':identity.tenant_id,'subject_id':identity.subject_id},
+            'required_capabilities':[request['operation']],'risk':'low','approval_policy':'governed-grant',
+            'correlation_id':request['mission_id'],'metadata':{'baseline':meta},
+            'budgets':{'attempts':operation.retry['max_attempts'],'time_seconds':30*operation.retry['max_attempts']},'evidence_requirements':['diagnostic']})
+        # Validate business authorization before creating an executable task.
+        self.authorization.issue_principal(request['grant_id'],ttl_seconds=60,tenant_id=identity.tenant_id,
+            subject_id=identity.subject_id,task_id=task_id,**{key:request[key] for key in ('mission_id','operation','component_id','environment')})
+        self._fresh_write()
+        try:
+            with self.store._transaction():
+                task=self.store.create_task_with_event(plan,idempotency_key=key)
+                self.store.conn.execute('INSERT OR IGNORE INTO baseline_task_runtime(task_id,ready_at,effect_id) VALUES(?,?,?)',
+                    (task_id,time.time(),effect_id))
+            self.lineage.link_task(identity.tenant_id,identity.subject_id,request['mission_id'],request['grant_id'],task_id)
+            return self.get_task(identity,task_id)
+        except TaskPlaneHTTPError as exc:
+            raise ServiceError('TASK_CONFLICT') from exc
+        except (sqlite3.Error,OSError) as exc:
+            self.storage_blocked=True
+            raise ServiceError('TASK_STORAGE_UNAVAILABLE',503) from exc
+
+    def get_task(self,identity,task_id):
+        self._user(identity)
+        task=self._task(identity,task_id)
+        with self.store._transaction():
+            row=self.store.conn.execute('SELECT * FROM baseline_task_runtime WHERE task_id=?',(task_id,)).fetchone()
+        result=task.to_dict()
+        if row:
+            result.update({'ready_at':row['ready_at'],'blocker_code':row['blocker_code'],'effect_id':row['effect_id'],'job_id':row['job_id']})
+            if row['job_id']:
+                job=self.jobs.store.read(row['job_id'])
+                result['job_state']=job['state']
+                result['side_effect_state']=job['side_effect_state']
+                envelope=json.loads(job['receipt_json']) if job.get('receipt_json') else None
+                if self._receipt_valid(task,envelope): result['receipt']=envelope['payload']
+        result['remaining_budget']=self.store.get_task_budget(task_id).to_dict()
+        return result
+
+    def explain(self,identity,mission_id):
+        self._user(identity)
+        result=self.lineage.explain(identity.tenant_id,identity.subject_id,mission_id)
+        result['tasks_runtime']=[self.get_task(identity,t.task_id) for t in self.store.list_tasks()
+            if t.task_plan.metadata.get('baseline',{}).get('mission_id')==mission_id and
+            t.task_plan.issuer.get('tenant_id')==identity.tenant_id and t.task_plan.issuer.get('subject_id')==identity.subject_id]
+        return result
+
+    def register_worker(self,identity):
+        profile=self._worker(identity)
+        try:
+            existing=self.store.get_worker(profile.worker_id)
+        except TaskPlaneHTTPError:
+            existing=None
+        now=time.time()
+        worker=WorkerRegistration.from_dict({'worker_id':profile.worker_id,'worker_type':'baseline-operation-worker',
+            'identity':profile.identity,'capabilities':list(profile.capabilities),'trust_zone':'governed-host',
+            'max_concurrency':profile.max_concurrency,'heartbeat_interval_seconds':profile.heartbeat_seconds,
+            'supported_protocols':['aios-baseline-worker-v1'],'last_heartbeat':now})
+        self.store.register_worker(worker,actor_identity=profile.identity,is_admin=False,
+            expected_revision=existing.registration_revision if existing else None)
+        with self.store._transaction():
+            self.store.conn.execute('INSERT INTO baseline_worker_policy VALUES(?,?) ON CONFLICT(worker_id) DO UPDATE SET policy_json=excluded.policy_json',
+                (profile.worker_id,canonical(profile.__dict__).decode()))
+        return {'worker_id':profile.worker_id,'registered':True,'fallback_executor':profile.fallback_executor}
+
+    def heartbeat(self,identity):
+        profile=self._worker(identity)
+        worker=self.store.get_worker(profile.worker_id)
+        self.store.heartbeat_worker(profile.worker_id,actor_identity=profile.identity,expected_revision=worker.registration_revision)
+        return {'worker_id':profile.worker_id,'alive':True}
+
+    def claim_next(self,identity):
+        profile=self._worker(identity)
+        worker=self.store.get_worker(profile.worker_id)
+        if worker.disabled: raise ServiceError('WORKER_DISABLED',403)
+        self._fresh_write()
+        for task in sorted(self.store.list_tasks(),key=lambda t:(t.created_at,t.task_id)):
+            meta=task.task_plan.metadata.get('baseline',{})
+            if not meta or task.status not in {'CREATED','QUEUED','FAILED_RECOVERABLE'}: continue
+            with self.store._transaction():
+                row=self.store.conn.execute('SELECT ready_at FROM baseline_task_runtime WHERE task_id=?',(task.task_id,)).fetchone()
+            if not row: continue
+            now=time.time()
+            task_scope={**meta,'ready_at':row['ready_at']}
+            if not eligible(profile,task_scope,now=now,last_heartbeat=worker.last_heartbeat): continue
+            # Priority is configuration on ordinary eligible workers; no special main actor.
+            candidates=[]
+            for registered in self.store.list_workers():
+                peer=self.worker_profiles.get(registered.worker_id)
+                if not peer or registered.disabled or not eligible(peer,task_scope,now=now,last_heartbeat=registered.last_heartbeat): continue
+                with self.store._transaction():
+                    active=self.store.conn.execute("SELECT count(*) FROM claims WHERE worker_id=? AND status='ACTIVE' AND lease_until>?",(peer.worker_id,now)).fetchone()[0]
+                if active<peer.max_concurrency: candidates.append(peer)
+            if not candidates or sorted(candidates,key=lambda p:(-p.priority,p.worker_id))[0].worker_id!=profile.worker_id: continue
+            try:
+                self._principal(task)
+                with self.store._transaction():
+                    self.store.consume_budget(task.task_id,Budget(attempts=1,time_seconds=30))
+                    claim=self.store.claim_task(task.task_id,profile.worker_id,profile.identity,lease_seconds=30,
+                        expected_revision=task.revision,operation_digest=task.task_plan.operation_digest())
+            except TaskPlaneHTTPError:
+                budget=self.store.get_task_budget(task.task_id)
+                if budget.attempts==0 or budget.time_seconds==0:
+                    with self.store._transaction():
+                        self.store.conn.execute('UPDATE baseline_task_runtime SET blocker_code=? WHERE task_id=?',('TASK_BUDGET_EXHAUSTED',task.task_id))
+                continue
+            except AuthorizationError:
+                with self.store._transaction():
+                    self.store.conn.execute('UPDATE baseline_task_runtime SET blocker_code=? WHERE task_id=?',('AUTHORIZATION_REQUIRED',task.task_id))
+                continue
+            return {'task_id':task.task_id,'claim_id':claim.claim_id,'generation':claim.attempt,
+                    'lease_until':claim.lease_until,'operation':meta['operation']}
+        return None
+
+    def renew(self,identity,task_id,claim_id):
+        profile=self._worker(identity)
+        claim=self.store.get_claim(claim_id)
+        if claim.task_id!=task_id or claim.worker_id!=profile.worker_id or claim.worker_identity!=profile.identity:
+            raise ServiceError('CLAIM_IDENTITY_MISMATCH',403)
+        task=self.store.get_task(task_id)
+        meta=task.task_plan.metadata.get('baseline',{})
+        if meta.get('tenant_id') not in profile.tenant_scope or meta.get('subject_id') not in profile.subject_scope or task.status=='CANCELLED':
+            raise ServiceError('CLAIM_SCOPE_OR_STATE_DENIED',403)
+        self._principal(task)
+        self.store.heartbeat_claim(task_id,claim_id,30)
+        return {'task_id':task_id,'claim_id':claim_id,'renewed':True}
+
+    def _advance(self,job_id,state,**kwargs):
+        row=self.jobs.store.read(job_id)
+        return self.jobs.advance(job_id,state,expected_revision=int(row['revision']),**kwargs)
+
+    @contextmanager
+    def _execution_slot(self,deadline):
+        remaining=deadline-time.time()
+        if remaining<=0 or not self._execute_lock.acquire(timeout=remaining):
+            raise ServiceError('EXECUTION_DEADLINE_EXPIRED',408)
+        try:
+            if time.time()>=deadline: raise ServiceError('EXECUTION_DEADLINE_EXPIRED',408)
+            yield
+        finally: self._execute_lock.release()
+
+    def execute_claim(self,identity,task_id,claim_id,*,deadline=None):
+        profile=self._worker(identity)
+        deadline=time.time()+30 if deadline is None else deadline
+        with self._execution_slot(deadline):
+            self._fresh_write()
+            task=self.store.get_task(task_id)
+            meta=task.task_plan.metadata.get('baseline',{})
+            claim=self.store.get_claim(claim_id)
+            if claim.task_id!=task_id or claim.worker_id!=profile.worker_id or claim.worker_identity!=profile.identity:
+                raise ServiceError('CLAIM_IDENTITY_MISMATCH',403)
+            if meta.get('tenant_id') not in profile.tenant_scope or meta.get('subject_id') not in profile.subject_scope:
+                raise ServiceError('WORKER_SCOPE_DENIED',403)
+            user=Identity(meta['tenant_id'],meta['subject_id'],'user')
+            if task.status=='COMPLETED': return self.get_task(user,task_id)
+            if claim.status!='ACTIVE' or claim.lease_until<=time.time() or task.status=='CANCELLED':
+                raise ServiceError('CLAIM_EXPIRED_OR_CANCELLED')
+            principal=self._principal(task)
+            self.authorization.authorize(principal,**self._scope(task))
+            operation=self.operations.get(meta['operation'])
+            if operation.handler_ref!='host.service_status' or operation.effect_class!='READ_ONLY':
+                raise ServiceError('HANDLER_NOT_REGISTERED',503)
+            self.authorization.assert_effect_bounds(principal,operation,**self._scope(task))
+            request={'schema':'aios.operation-job.v1','tenant_id':meta['tenant_id'],'subject_id':meta['subject_id'],
+                'mission_id':meta['mission_id'],'grant_id':meta['grant_id'],'task_id':task_id,'effect_id':meta['effect_id'],
+                'operation':meta['operation'],'operation_version':str(operation.version),'resource_kind':'systemd-service',
+                'resource_id':digest({'tenant':meta['tenant_id'],'environment':meta['environment'],'component':meta['component_id']}),'input_digest':digest(meta['inputs'])}
+            try:
+                job=self.jobs.submit(request)
+                with self.store._transaction():
+                    self.store.conn.execute('UPDATE baseline_task_runtime SET job_id=? WHERE task_id=?',(job.job_id,task_id))
+                self.lineage.link_task(meta['tenant_id'],meta['subject_id'],meta['mission_id'],meta['grant_id'],task_id)
+                self.lineage.link_effect(meta['tenant_id'],meta['subject_id'],meta['mission_id'],task_id,meta['effect_id'],job.job_id)
+                row=self.jobs.store.read(job.job_id)
+                if row['state']=='COMPLETED':
+                    self._close_task(task,claim,json.loads(row['receipt_json']))
+                    return self.get_task(user,task_id)
+                if row['state'] not in {'REQUESTED','AUTHORIZED'}:
+                    raise ServiceError('JOB_RECONCILIATION_REQUIRED')
+                self.jobs.assert_effect_admission(exclude_job_id=job.job_id)
+                self.authorization.reserve_effect(meta['grant_id'],meta['effect_id'],principal,**self._scope(task))
+                if row['state']=='REQUESTED': self._advance(job.job_id,JobState.AUTHORIZED,side_effect_state='AUTHORIZED')
+                row=self.jobs.store.read(job.job_id)
+                self.jobs.lease_resource_job(job.job_id,lease_id=claim_id,resource_kind=request['resource_kind'],
+                    resource_id=request['resource_id'],generation=None,
+                    lease_expires_at=datetime.fromtimestamp(min(claim.lease_until,time.time()+30,deadline),timezone.utc).isoformat(),
+                    expected_revision=int(row['revision']))
+                effect_lease=self.jobs.get_execution_lease(job.job_id)
+                fence_generation=int(effect_lease['generation'])
+                self._advance(job.job_id,JobState.EXECUTING,side_effect_state='IN_PROGRESS')
+                # Last authorization/claim check directly before the registered host boundary.
+                self.authorization.authorize(principal,**self._scope(task))
+                if self.store.get_task(task_id).status=='CANCELLED' or self.store.get_claim(claim_id).lease_until<=time.time():
+                    raise ServiceError('CLAIM_EXPIRED_OR_CANCELLED')
+                self.jobs.assert_execution_lease(job.job_id,generation=fence_generation,lease_id=claim_id)
+                if time.time()>=deadline: raise ServiceError('EXECUTION_DEADLINE_EXPIRED',408)
+                observation=self.host.status(meta['component_id'],meta['environment'],tenant_id=meta['tenant_id'],deadline=deadline)
+                if time.time()>=deadline or self.store.get_claim(claim_id).lease_until<=time.time():
+                    raise ServiceError('EXECUTION_DEADLINE_EXPIRED',408)
+                envelope=self.signer.sign({'task_id':task_id,'job_id':job.job_id,'effect_id':meta['effect_id'],
+                    'tenant_id':meta['tenant_id'],'subject_id':meta['subject_id'],'mission_id':meta['mission_id'],
+                    'grant_id':meta['grant_id'],'claim_id':claim_id,'generation':fence_generation,
+                    'operation':meta['operation'],'operation_version':str(operation.version),
+                    'input_digest':request['input_digest'],'resource_kind':request['resource_kind'],
+                    'resource_id':request['resource_id'],'observation':observation,'verified':True})
+                self._advance(job.job_id,JobState.LOCAL_VERIFIED,side_effect_state='READBACK_VERIFIED',receipt=envelope)
+                self._advance(job.job_id,JobState.COMPLETED,side_effect_state='READBACK_VERIFIED',receipt=envelope)
+                self._close_task(task,claim,envelope)
+                return self.get_task(user,task_id)
+            except (sqlite3.Error,OSError) as exc:
+                self.storage_blocked=True
+                raise ServiceError('STORAGE_RECOVERY_REQUIRED',503) from exc
+            except HostError as exc:
+                try:
+                    self._advance(job.job_id,JobState.RECONCILIATION_REQUIRED,side_effect_state='UNKNOWN')
+                    with self.store._transaction():
+                        self.store.conn.execute('UPDATE baseline_task_runtime SET blocker_code=? WHERE task_id=?',(str(exc),task_id))
+                except (sqlite3.Error,OSError,JobError): self.storage_blocked=True
+                raise ServiceError(str(exc),503) from exc
+            except JobError as exc:
+                if 'UNAVAILABLE' in str(exc) or 'STORAGE' in str(exc): self.storage_blocked=True
+                raise ServiceError(str(exc),503 if self.storage_blocked else 409) from exc
+
+    def _receipt_valid(self,task,envelope):
+        meta=task.task_plan.metadata['baseline']
+        if not self.signer.verify(envelope): return False
+        payload=envelope['payload']
+        with self.store._transaction():
+            runtime=self.store.conn.execute('SELECT job_id FROM baseline_task_runtime WHERE task_id=?',(task.task_id,)).fetchone()
+        if not runtime or not runtime['job_id']: return False
+        expected={**{k:meta[k] for k in ('effect_id','tenant_id','subject_id','mission_id','grant_id','operation')},
+            'task_id':task.task_id,'job_id':runtime['job_id'],'operation_version':str(meta['operation_version']),
+            'input_digest':digest(meta['inputs']),'resource_kind':'systemd-service',
+            'resource_id':digest({'tenant':meta['tenant_id'],'environment':meta['environment'],'component':meta['component_id']})}
+        if any(payload.get(k)!=v for k,v in expected.items()) or payload.get('verified') is not True: return False
+        try:
+            lease=self.jobs.get_execution_lease(runtime['job_id'])
+            source_claim=self.store.get_claim(payload.get('claim_id'))
+            if payload.get('claim_id')!=lease['lease_id'] or payload.get('generation')!=lease['generation']: return False
+            if source_claim.task_id!=task.task_id or source_claim.operation_digest!=task.task_plan.operation_digest(): return False
+        except (JobError,TaskPlaneHTTPError,TypeError): return False
+        observation=payload.get('observation')
+        if type(observation) is not dict: return False
+        for k in ('operation','tenant_id','component_id','environment'):
+            if observation.get(k)!=meta[k]: return False
+        binding=meta['tenant_id']+':'+meta['environment']+':'+meta['component_id']
+        if observation.get('unit')!=self.host.bindings.get(binding) or observation.get('source')!='systemd.show': return False
+        return True
+
+    def _close_task(self,task,claim,envelope):
+        if not self._receipt_valid(task,envelope): raise ServiceError('RESULT_ATTESTATION_INVALID',403)
+        current=self.store.get_task(task.task_id)
+        if current.status=='CANCELLED': raise ServiceError('TASK_CANCELLED')
+        if current.status=='CLAIMED': self.store.update_task_status(task.task_id,current.revision,'RUNNING')
+        self.store.complete_claim(task.task_id,claim.claim_id,'COMPLETED',envelope,
+            evidence_entries=[('diagnostic',envelope,claim.worker_identity)])
+
+    def cancel_task(self,identity,task_id):
+        self._user(identity)
+        task=self._task(identity,task_id)
+        self.store.cancel_task_with_event(task_id,task.revision,'cancelled by authenticated subject')
+        return self.get_task(identity,task_id)
+
+    def _verify_probe(self,probe):
+        try:
+            self.signer.public_key.verify(base64.b64decode(probe.signature,validate=True),canonical(probe.digest_payload()))
+            return True
+        except Exception:
+            return False
+
+    def recover(self):
+        """Reconcile expired baseline claims from durable signed receipts; never fake a result."""
+        with self._execute_lock:
+            return self._recover_locked()
+
+    def _recover_locked(self):
+        recovered=[]
+        with self.store._transaction():
+            rows=self.store.conn.execute("SELECT claim_id FROM claims WHERE status='ACTIVE' AND lease_until<?",(time.time(),)).fetchall()
+        for row in rows:
+            claim=self.store.get_claim(row['claim_id'])
+            task=self.store.get_task(claim.task_id)
+            meta=task.task_plan.metadata.get('baseline')
+            if not meta: continue
+            with self.store._transaction():
+                rt=self.store.conn.execute('SELECT job_id FROM baseline_task_runtime WHERE task_id=?',(task.task_id,)).fetchone()
+            outcome=ProbeOutcome.NOT_APPLIED
+            ref='read-only-no-persistent-effect'
+            if rt and rt['job_id']:
+                job=self.jobs.store.read(rt['job_id'])
+                env=json.loads(job['receipt_json']) if job.get('receipt_json') else None
+                if job['state']=='COMPLETED':
+                    if self._receipt_valid(task,env):
+                        outcome=ProbeOutcome.APPLIED_VERIFIED
+                        ref=digest(env)
+                    else: outcome=ProbeOutcome.INDETERMINATE
+                elif self.operations.get(meta['operation']).effect_class!='READ_ONLY':
+                    outcome=ProbeOutcome.INDETERMINATE
+            now=time.time()
+            probe=ProbeEvidence.create(task_id=task.task_id,claim_id=claim.claim_id,worker_id=claim.worker_id,
+                worker_identity=claim.worker_identity,operation_digest=claim.operation_digest,outcome=outcome,
+                observed_at=now,expires_at=now+30,probe_executor_identity='baseline-reconciler',attestation_ref=ref)
+            from dataclasses import replace
+            probe=replace(probe,signature=base64.b64encode(self.signer.private_key.sign(canonical(probe.digest_payload()))).decode())
+            self.store.recover_claim_with_probe_and_event(task.task_id,claim.claim_id,probe)
+            if outcome==ProbeOutcome.NOT_APPLIED and rt and rt['job_id']:
+                job=self.jobs.store.read(rt['job_id'])
+                if job['state']!='COMPLETED':
+                    self._advance(rt['job_id'],JobState.RECONCILIATION_REQUIRED,side_effect_state='UNKNOWN')
+                    self.jobs.reconcile(rt['job_id'],lambda _:{'state':'REQUESTED','side_effect_state':'READ_ONLY_SAFE_TO_RETRY'})
+            recovered.append({'task_id':task.task_id,'outcome':outcome.value})
+        # A successful writable transaction permits recovery processing, not blind effect replay.
+        with self.store._transaction():
+            self.store.conn.execute('UPDATE baseline_task_runtime SET blocker_code=blocker_code WHERE 0')
+        try:
+            self.jobs.assert_effect_admission()
+            self.storage_blocked=False
+        except JobError:
+            self.storage_blocked=True
+        return recovered

active-runtime/app/aios_baseline/transport.py

@@ -0,0 +1,513 @@
+"""Authenticated loopback HTTP transport for the Baseline 1.1 service."""
+
+from __future__ import annotations
+
+from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
+import ipaddress
+import json
+import math
+import re
+import time
+import threading
+from typing import Any, Mapping
+from urllib.error import HTTPError, URLError
+from urllib.parse import quote, unquote, urlsplit
+from urllib.request import HTTPRedirectHandler, ProxyHandler, Request, build_opener
+
+from .service import Identity, ServiceError
+
+
+MAX_REQUEST_BYTES = 65_536
+MAX_RESPONSE_BYTES = 1_048_576
+MAX_DEADLINE_SECONDS = 30
+_IDENTIFIER = re.compile(r"[A-Za-z0-9][A-Za-z0-9_.:-]{0,127}")
+_IDENTITY_FIELDS = frozenset({"tenant_id", "subject_id", "role", "worker_id", "identity"})
+
+
+class TransportError(RuntimeError):
+    def __init__(self, code: str, status: int | None = None):
+        self.code = code
+        self.status = status
+        super().__init__(code)
+
+
+class _RequestError(RuntimeError):
+    def __init__(self, code: str, status: int):
+        self.code = code
+        self.status = status
+        super().__init__(code)
+
+
+def _safe_identifier(value: Any, code: str = "HTTP_PATH_INVALID") -> str:
+    if not isinstance(value, str) or _IDENTIFIER.fullmatch(value) is None:
+        raise _RequestError(code, 400)
+    return value
+
+
+def _has_identity_field(value: Any) -> bool:
+    if isinstance(value, Mapping):
+        if any(key in _IDENTITY_FIELDS for key in value):
+            return True
+        return any(_has_identity_field(item) for item in value.values())
+    if isinstance(value, list):
+        return any(_has_identity_field(item) for item in value)
+    return False
+
+
+def _loopback_host(host: str, code: str) -> str:
+    if not isinstance(host, str):
+        raise TransportError(code)
+    try:
+        address = ipaddress.ip_address(host)
+    except ValueError as exc:
+        raise TransportError(code) from exc
+    if not address.is_loopback or address.version != 4:
+        raise TransportError(code)
+    return str(address)
+
+
+class _BaselineHTTPServer(ThreadingHTTPServer):
+    daemon_threads = True
+    allow_reuse_address = True
+
+    def __init__(self, address, handler, service, identities):
+        self.baseline_service = service
+        self.trusted_identities = identities
+        self.request_slots=threading.BoundedSemaphore(16)
+        super().__init__(address, handler)
+
+    def get_request(self):
+        connection, address = super().get_request()
+        connection.settimeout(MAX_DEADLINE_SECONDS)
+        return connection, address
+
+    def process_request(self,request,client_address):
+        if not self.request_slots.acquire(blocking=False):
+            try:
+                body=b'{"error":{"code":"HTTP_CAPACITY_EXCEEDED"}}'
+                request.sendall(b'HTTP/1.1 503 Service Unavailable\r\nContent-Type: application/json\r\nConnection: close\r\nContent-Length: '+str(len(body)).encode()+b'\r\n\r\n'+body)
+            except OSError: pass
+            self.shutdown_request(request)
+            return
+        try: super().process_request(request,client_address)
+        except Exception:
+            self.request_slots.release()
+            raise
+
+    def process_request_thread(self,request,client_address):
+        try: super().process_request_thread(request,client_address)
+        finally: self.request_slots.release()
+
+
+class _Handler(BaseHTTPRequestHandler):
+    protocol_version = "HTTP/1.1"
+    server_version = "AIOSBaselineHTTP/1"
+    sys_version = ""
+
+    def log_message(self, _format, *_args):
+        # Request paths can contain tenant-owned identifiers; do not emit them or
+        # bearer-related failure details through the default stderr logger.
+        return
+
+    def send_error(self, code, message=None, explain=None):
+        # BaseHTTPRequestHandler otherwise emits an HTML page which may include
+        # parser details. Keep pre-dispatch protocol failures in the same closed
+        # JSON error format.
+        status = code if isinstance(code, int) and 400 <= code <= 599 else 400
+        self._send(status, {"error": {"code": "HTTP_PROTOCOL_ERROR"}})
+
+    def _send(self, status: int, value: Any) -> None:
+        try:
+            body = json.dumps(
+                value, sort_keys=True, separators=(",", ":"), ensure_ascii=False,
+                allow_nan=False,
+            ).encode("utf-8")
+        except (TypeError, ValueError):
+            status = 500
+            body = b'{"error":{"code":"HTTP_RESPONSE_INVALID"}}'
+        if len(body) > MAX_RESPONSE_BYTES:
+            status = 500
+            body = b'{"error":{"code":"HTTP_RESPONSE_TOO_LARGE"}}'
+        self.send_response(status)
+        self.send_header("Content-Type", "application/json")
+        self.send_header("Content-Length", str(len(body)))
+        self.send_header("Cache-Control", "no-store")
+        self.send_header("X-Content-Type-Options", "nosniff")
+        self.send_header("Connection", "close")
+        self.end_headers()
+        try:
+            self.wfile.write(body)
+        except OSError:
+            # A peer can disconnect or let its deadline expire while a response
+            # is being written. Do not let the server print a handler traceback.
+            pass
+        self.close_connection = True
+
+    def _error(self, error: _RequestError) -> None:
+        self._send(error.status, {"error": {"code": error.code}})
+
+    def _deadline(self) -> float:
+        values = self.headers.get_all("X-AIOS-Deadline", [])
+        if len(values) != 1:
+            raise _RequestError("HTTP_DEADLINE_REQUIRED", 400)
+        try:
+            deadline = float(values[0])
+        except (TypeError, ValueError) as exc:
+            raise _RequestError("HTTP_DEADLINE_INVALID", 400) from exc
+        now = time.time()
+        if not math.isfinite(deadline) or deadline > now + MAX_DEADLINE_SECONDS:
+            raise _RequestError("HTTP_DEADLINE_INVALID", 400)
+        if deadline <= now:
+            raise _RequestError("HTTP_DEADLINE_EXPIRED", 408)
+        self.connection.settimeout(deadline - now)
+        return deadline
+
+    def _identity(self) -> Identity:
+        values = self.headers.get_all("Authorization", [])
+        if len(values) != 1 or not values[0].startswith("Bearer "):
+            raise _RequestError("HTTP_UNAUTHORIZED", 401)
+        token = values[0][7:]
+        if not token or any(ord(char) < 33 or ord(char) > 126 for char in token):
+            raise _RequestError("HTTP_UNAUTHORIZED", 401)
+        identity = self.server.trusted_identities.get(token)
+        if identity is None:
+            raise _RequestError("HTTP_UNAUTHORIZED", 401)
+        return identity
+
+    def _json_body(self) -> dict:
+        if self.headers.get("Transfer-Encoding") is not None:
+            raise _RequestError("HTTP_TRANSFER_ENCODING_FORBIDDEN", 400)
+        content_types = self.headers.get_all("Content-Type", [])
+        if content_types != ["application/json"]:
+            raise _RequestError("HTTP_CONTENT_TYPE_INVALID", 415)
+        lengths = self.headers.get_all("Content-Length", [])
+        if len(lengths) != 1 or not lengths[0].isdigit():
+            raise _RequestError("HTTP_CONTENT_LENGTH_INVALID", 411)
+        length = int(lengths[0])
+        if length > MAX_REQUEST_BYTES:
+            raise _RequestError("HTTP_BODY_TOO_LARGE", 413)
+        if length <= 0:
+            raise _RequestError("HTTP_BODY_REQUIRED", 400)
+        raw = self.rfile.read(length)
+        if len(raw) != length:
+            raise _RequestError("HTTP_BODY_TRUNCATED", 400)
+        try:
+            def unique_object(pairs):
+                result = {}
+                for key, item in pairs:
+                    if key in result:
+                        raise _RequestError("HTTP_JSON_DUPLICATE_KEY", 400)
+                    result[key] = item
+                return result
+
+            def reject_constant(_value):
+                raise _RequestError("HTTP_JSON_NON_FINITE", 400)
+
+            value = json.loads(
+                raw.decode("utf-8"), object_pairs_hook=unique_object,
+                parse_constant=reject_constant,
+            )
+        except (UnicodeDecodeError, json.JSONDecodeError) as exc:
+            raise _RequestError("HTTP_JSON_INVALID", 400) from exc
+        if type(value) is not dict:
+            raise _RequestError("HTTP_JSON_OBJECT_REQUIRED", 400)
+        if _has_identity_field(value):
+            raise _RequestError("HTTP_IDENTITY_FIELD_FORBIDDEN", 400)
+        return value
+
+    def _path(self) -> list[str]:
+        parsed = urlsplit(self.path)
+        if parsed.query or parsed.fragment or not parsed.path.startswith("/"):
+            raise _RequestError("HTTP_PATH_INVALID", 400)
+        raw_segments = parsed.path.split("/")[1:]
+        if any(not segment for segment in raw_segments):
+            raise _RequestError("HTTP_NOT_FOUND", 404)
+        segments = [unquote(segment) for segment in raw_segments]
+        if any("/" in segment or "\\" in segment for segment in segments):
+            raise _RequestError("HTTP_PATH_INVALID", 400)
+        return segments
+
+    @staticmethod
+    def _exact(body: Mapping[str, Any], fields: set[str]) -> None:
+        if set(body) != fields:
+            raise _RequestError("HTTP_BODY_SCHEMA_INVALID", 400)
+
+    def _dispatch(self, method: str, identity: Identity, segments: list[str], body: dict | None):
+        service = self.server.baseline_service
+        if method == "POST" and segments == ["v1", "goals", "submit"]:
+            self._exact(body, {"request", "idempotency_key"})
+            if type(body["request"]) is not dict:
+                raise _RequestError("HTTP_BODY_SCHEMA_INVALID", 400)
+            return 201, service.submit_goal(
+                identity, body["request"], idempotency_key=body["idempotency_key"]
+            )
+        if method == "GET" and len(segments) == 3 and segments[:2] == ["v1", "tasks"]:
+            return 200, service.get_task(identity, _safe_identifier(segments[2]))
+        if (
+            method == "POST" and len(segments) == 4
+            and segments[:2] == ["v1", "tasks"] and segments[3] == "cancel"
+        ):
+            self._exact(body, set())
+            return 200, service.cancel_task(identity, _safe_identifier(segments[2]))
+        if (
+            method == "GET" and len(segments) == 4
+            and segments[:2] == ["v1", "missions"] and segments[3] == "explain"
+        ):
+            return 200, service.explain(identity, _safe_identifier(segments[2]))
+        if method == "POST" and segments == ["v1", "workers", "register"]:
+            self._exact(body, set())
+            return 200, service.register_worker(identity)
+        if method == "POST" and segments == ["v1", "workers", "heartbeat"]:
+            self._exact(body, set())
+            return 200, service.heartbeat(identity)
+        if method == "POST" and segments == ["v1", "workers", "claim"]:
+            self._exact(body, set())
+            return 200, service.claim_next(identity)
+        if method == "POST" and segments == ["v1", "workers", "renew"]:
+            self._exact(body, {"task_id", "claim_id"})
+            return 200, service.renew(
+                identity, _safe_identifier(body["task_id"]), _safe_identifier(body["claim_id"])
+            )
+        if method == "POST" and segments == ["v1", "workers", "execute"]:
+            self._exact(body, {"task_id", "claim_id"})
+            return 200, service.execute_claim(
+                identity, _safe_identifier(body["task_id"]), _safe_identifier(body["claim_id"]),deadline=self.request_deadline
+            )
+        raise _RequestError("HTTP_NOT_FOUND", 404)
+
+    def _handle(self, method: str) -> None:
+        try:
+            self.request_deadline=self._deadline()
+            identity = self._identity()
+            segments = self._path()
+            body = self._json_body() if method == "POST" else None
+            if method == "GET":
+                lengths = self.headers.get_all("Content-Length", [])
+                if self.headers.get("Transfer-Encoding") is not None:
+                    raise _RequestError("HTTP_GET_BODY_FORBIDDEN", 400)
+                if len(lengths) > 1 or (lengths and (not lengths[0].isdigit() or int(lengths[0]) != 0)):
+                    raise _RequestError("HTTP_GET_BODY_FORBIDDEN", 400)
+            status, result = self._dispatch(method, identity, segments, body)
+            self._send(status, result)
+        except _RequestError as exc:
+            self._error(exc)
+        except ServiceError as exc:
+            status = exc.status if isinstance(exc.status, int) and 400 <= exc.status <= 599 else 500
+            self._send(status, {"error": {"code": exc.code}})
+        except TimeoutError:
+            self._send(408, {"error": {"code": "HTTP_DEADLINE_EXPIRED"}})
+        except Exception:
+            # No exception string, traceback, request headers, or token crosses
+            # this boundary.
+            self._send(500, {"error": {"code": "HTTP_INTERNAL_ERROR"}})
+
+    def do_GET(self):
+        self._handle("GET")
+
+    def do_POST(self):
+        self._handle("POST")
+
+    def _method_not_allowed(self):
+        try:
+            self._deadline()
+            self._identity()
+            self._send(405, {"error": {"code": "HTTP_METHOD_NOT_ALLOWED"}})
+        except _RequestError as exc:
+            self._error(exc)
+
+    do_PUT = _method_not_allowed
+    do_PATCH = _method_not_allowed
+    do_DELETE = _method_not_allowed
+    do_OPTIONS = _method_not_allowed
+    do_HEAD = _method_not_allowed
+    do_TRACE = _method_not_allowed
+    do_CONNECT = _method_not_allowed
+
+
+def serve(
+    service: Any,
+    tokens: Mapping[str, Identity],
+    host: str = "127.0.0.1",
+    port: int = 0,
+) -> ThreadingHTTPServer:
+    """Build an unstarted real HTTP server bound only to an IPv4 loopback."""
+    host = _loopback_host(host, "HTTP_LOOPBACK_REQUIRED")
+    if type(port) is not int or not 0 <= port <= 65_535:
+        raise TransportError("HTTP_PORT_INVALID")
+    if not isinstance(tokens, Mapping) or not tokens:
+        raise TransportError("HTTP_TRUSTED_IDENTITIES_REQUIRED")
+    identities: dict[str, Identity] = {}
+    for token, identity in tokens.items():
+        if (
+            not isinstance(token, str) or not 32<=len(token)<=512
+            or any(ord(char) < 33 or ord(char) > 126 for char in token)
+            or not isinstance(identity, Identity)
+        ):
+            raise TransportError("HTTP_TRUSTED_IDENTITY_INVALID")
+        identities[token] = identity
+    return _BaselineHTTPServer((host, port), _Handler, service, identities)
+
+
+class _NoRedirect(HTTPRedirectHandler):
+    def redirect_request(self, req, fp, code, msg, headers, newurl):
+        return None
+
+
+class HttpTransport:
+    """Small urllib client for the loopback API; redirects and proxies are off."""
+
+    def __init__(
+        self,
+        base_url: str,
+        token: str,
+        *,
+        timeout_seconds: float = 15,
+        max_response_bytes: int = MAX_RESPONSE_BYTES,
+    ):
+        try:
+            parsed = urlsplit(base_url)
+            parsed_port = parsed.port
+        except ValueError as exc:
+            raise TransportError("TRANSPORT_BASE_URL_INVALID") from exc
+        if (
+            parsed.scheme != "http" or parsed.username is not None or parsed.password is not None
+            or parsed.query or parsed.fragment or parsed.path not in {"", "/"}
+            or parsed.hostname is None or parsed_port is None
+        ):
+            raise TransportError("TRANSPORT_BASE_URL_INVALID")
+        _loopback_host(parsed.hostname, "TRANSPORT_LOOPBACK_REQUIRED")
+        if not isinstance(token, str) or not 32<=len(token)<=512 or any(
+            ord(char) < 33 or ord(char) > 126 for char in token
+        ):
+            raise TransportError("TRANSPORT_TOKEN_INVALID")
+        if (
+            isinstance(timeout_seconds, bool)
+            or not isinstance(timeout_seconds, (int, float))
+            or not math.isfinite(float(timeout_seconds))
+            or not 0.1 <= timeout_seconds <= MAX_DEADLINE_SECONDS
+        ):
+            raise TransportError("TRANSPORT_TIMEOUT_INVALID")
+        if type(max_response_bytes) is not int or not 1 <= max_response_bytes <= 4 * 1024 * 1024:
+            raise TransportError("TRANSPORT_RESPONSE_LIMIT_INVALID")
+        self.base_url = f"http://{parsed.hostname}:{parsed_port}"
+        self.token = token
+        self.timeout_seconds = float(timeout_seconds)
+        self.max_response_bytes = max_response_bytes
+        self._opener = build_opener(ProxyHandler({}), _NoRedirect())
+
+    def _decode(self, response) -> Any:
+        content_type = response.headers.get("Content-Type", "").split(";", 1)[0]
+        if content_type != "application/json":
+            raise TransportError("TRANSPORT_RESPONSE_TYPE_INVALID")
+        declared = response.headers.get("Content-Length")
+        if declared is None or not declared.isdigit() or int(declared) > self.max_response_bytes:
+            raise TransportError("TRANSPORT_RESPONSE_TOO_LARGE")
+        raw = response.read(self.max_response_bytes + 1)
+        if len(raw) > self.max_response_bytes or len(raw) != int(declared):
+            raise TransportError("TRANSPORT_RESPONSE_SIZE_INVALID")
+        try:
+            def unique_object(pairs):
+                result = {}
+                for key, item in pairs:
+                    if key in result:
+                        raise ValueError("duplicate")
+                    result[key] = item
+                return result
+
+            return json.loads(
+                raw.decode("utf-8"), object_pairs_hook=unique_object,
+                parse_constant=lambda _value: (_ for _ in ()).throw(ValueError("non-finite")),
+            )
+        except (UnicodeDecodeError, json.JSONDecodeError, ValueError) as exc:
+            raise TransportError("TRANSPORT_RESPONSE_JSON_INVALID") from exc
+
+    def _request(self, method: str, path: str, body: Mapping[str, Any] | None = None) -> Any:
+        if not isinstance(path, str) or not path.startswith("/") or "?" in path or "#" in path:
+            raise TransportError("TRANSPORT_PATH_INVALID")
+        data = None
+        headers = {
+            "Authorization": "Bearer " + self.token,
+            "Accept": "application/json",
+            "X-AIOS-Deadline": str(time.time() + self.timeout_seconds),
+        }
+        if method == "POST":
+            if not isinstance(body, Mapping):
+                raise TransportError("TRANSPORT_BODY_INVALID")
+            try:
+                data = json.dumps(
+                    body, sort_keys=True, separators=(",", ":"), ensure_ascii=False,
+                    allow_nan=False,
+                ).encode("utf-8")
+            except (TypeError, ValueError) as exc:
+                raise TransportError("TRANSPORT_BODY_INVALID") from exc
+            if not data or len(data) > MAX_REQUEST_BYTES:
+                raise TransportError("TRANSPORT_BODY_TOO_LARGE")
+            headers["Content-Type"] = "application/json"
+        request = Request(self.base_url + path, data=data, headers=headers, method=method)
+        try:
+            with self._opener.open(request, timeout=self.timeout_seconds) as response:
+                return self._decode(response)
+        except HTTPError as exc:
+            if 300 <= exc.code < 400:
+                exc.close()
+                raise TransportError("TRANSPORT_REDIRECT_REJECTED", exc.code) from None
+            try:
+                payload = self._decode(exc)
+            except TransportError:
+                payload = None
+            except (TimeoutError, OSError):
+                raise TransportError("TRANSPORT_UNAVAILABLE") from None
+            finally:
+                exc.close()
+            code = None
+            if isinstance(payload, Mapping) and isinstance(payload.get("error"), Mapping):
+                code = payload["error"].get("code")
+            if not isinstance(code, str) or _IDENTIFIER.fullmatch(code) is None:
+                code = "TRANSPORT_HTTP_ERROR"
+            raise TransportError(code, exc.code) from None
+        except (URLError, TimeoutError, OSError):
+            raise TransportError("TRANSPORT_UNAVAILABLE") from None
+
+    def submit_goal(self, request: Mapping[str, Any], *, idempotency_key: str) -> dict:
+        return self._request(
+            "POST", "/v1/goals/submit",
+            {"request": request, "idempotency_key": idempotency_key},
+        )
+
+    def get_task(self, task_id: str) -> dict:
+        return self._request("GET", "/v1/tasks/" + quote(task_id, safe=""))
+
+    def cancel_task(self, task_id: str) -> dict:
+        return self._request("POST", "/v1/tasks/" + quote(task_id, safe="") + "/cancel", {})
+
+    def explain(self, mission_id: str) -> dict:
+        return self._request("GET", "/v1/missions/" + quote(mission_id, safe="") + "/explain")
+
+    def register_worker(self) -> dict:
+        return self._request("POST", "/v1/workers/register", {})
+
+    def heartbeat(self) -> dict:
+        return self._request("POST", "/v1/workers/heartbeat", {})
+
+    def claim_next(self) -> dict | None:
+        return self._request("POST", "/v1/workers/claim", {})
+
+    def renew(self, task_id: str, claim_id: str) -> dict:
+        return self._request(
+            "POST", "/v1/workers/renew", {"task_id": task_id, "claim_id": claim_id}
+        )
+
+    def execute_claim(self, task_id: str, claim_id: str) -> dict:
+        return self._request(
+            "POST", "/v1/workers/execute", {"task_id": task_id, "claim_id": claim_id}
+        )
+
+    # Goal-oriented names used by thin clients.
+    submit = submit_goal
+    query = get_task
+    cancel = cancel_task
+
+
+Transport = HttpTransport
+
+__all__ = ["HttpTransport", "Transport", "TransportError", "serve"]

active-runtime/app/aios_baseline/verifiers.py

@@ -0,0 +1,204 @@
+"""Verification-only Ed25519 boundaries for release and acceptance evidence."""
+
+from __future__ import annotations
+
+import base64
+import json
+import re
+from types import MappingProxyType
+from typing import Any, Callable, Mapping
+
+from cryptography.exceptions import InvalidSignature
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PublicKey
+
+from .lineage import VerifiedAcceptanceEvidence, canonical_artifact
+from .release import VerifiedReceipt
+
+
+RELEASE_RECEIPT_DOMAIN = b"aios.release-operation-receipt.v1"
+ACCEPTANCE_EVIDENCE_DOMAIN = b"aios.release-acceptance-evidence.v1"
+
+_ENVELOPE_FIELDS = {"schema", "key_id", "payload", "signature"}
+_RECEIPT_FIELDS = {
+    "receipt_id", "tenant_id", "subject_id", "component_id", "task_id",
+    "source_task_id", "source_effect_id", "grant_id", "job_id", "effect_id", "operation_id",
+    "deployment_id", "release_id", "artifact", "outcome", "observed", "observed_at",
+}
+_ACCEPTANCE_FIELDS = {
+    "acceptance_id", "tenant_id", "subject_id", "component_id", "deployment_id", "release_id",
+    "artifact", "accepted", "evidence_id", "observed", "observed_at",
+}
+_B64URL = re.compile(r"[A-Za-z0-9_-]+")
+
+
+class SignatureVerificationError(ValueError):
+    """A configured trust root did not authenticate an exact evidence payload."""
+
+
+def _canonical(value: Any) -> bytes:
+    try:
+        return json.dumps(
+            value, ensure_ascii=False, sort_keys=True, separators=(",", ":"),
+            allow_nan=False,
+        ).encode("utf-8")
+    except (TypeError, ValueError) as exc:
+        raise SignatureVerificationError("signed payload is not canonical JSON") from exc
+
+
+def _decode_urlsafe(value: Any, name: str, expected_size: int) -> bytes:
+    if not isinstance(value, str) or not value or not _B64URL.fullmatch(value) or "=" in value:
+        raise SignatureVerificationError(f"invalid {name} encoding")
+    try:
+        raw = base64.urlsafe_b64decode(value + "=" * (-len(value) % 4))
+    except (ValueError, TypeError) as exc:
+        raise SignatureVerificationError(f"invalid {name} encoding") from exc
+    if len(raw) != expected_size:
+        raise SignatureVerificationError(f"invalid {name} size")
+    return raw
+
+
+def _public_key(value: Any) -> Ed25519PublicKey:
+    if isinstance(value, Ed25519PublicKey):
+        return value
+    if isinstance(value, bytes):
+        raw = value
+    elif isinstance(value, str):
+        raw = _decode_urlsafe(value, "trusted public key", 32)
+    else:
+        raise ValueError("trusted public key must be Ed25519PublicKey, raw bytes, or base64url")
+    if len(raw) != 32:
+        raise ValueError("trusted Ed25519 public key must be 32 bytes")
+    return Ed25519PublicKey.from_public_bytes(raw)
+
+
+def _trusted_keys(values: Mapping[str, Any]) -> Mapping[str, Ed25519PublicKey]:
+    if not isinstance(values, Mapping) or not values:
+        raise ValueError("trusted_public_keys must be a non-empty mapping")
+    keys: dict[str, Ed25519PublicKey] = {}
+    for key_id, value in values.items():
+        if not isinstance(key_id, str) or not key_id or len(key_id) > 128:
+            raise ValueError("invalid trusted key_id")
+        keys[key_id] = _public_key(value)
+    return MappingProxyType(keys)
+
+
+def _verified_payload(
+    envelope: Any,
+    keys: Mapping[str, Ed25519PublicKey],
+    *,
+    schema: str,
+    domain: bytes,
+    payload_fields: set[str],
+) -> Mapping[str, Any]:
+    if not isinstance(envelope, Mapping) or set(envelope) != _ENVELOPE_FIELDS:
+        raise SignatureVerificationError("signed envelope fields invalid")
+    if envelope.get("schema") != schema:
+        raise SignatureVerificationError("signed envelope schema mismatch")
+    key_id = envelope.get("key_id")
+    if not isinstance(key_id, str) or key_id not in keys:
+        raise SignatureVerificationError("untrusted signing key_id")
+    payload = envelope.get("payload")
+    if not isinstance(payload, Mapping) or set(payload) != payload_fields:
+        raise SignatureVerificationError("signed payload fields invalid")
+    signature = _decode_urlsafe(envelope.get("signature"), "signature", 64)
+    try:
+        keys[key_id].verify(signature, domain + b"\x00" + _canonical(dict(payload)))
+    except InvalidSignature as exc:
+        raise SignatureVerificationError("Ed25519 signature invalid") from exc
+    return payload
+
+
+def _text(payload: Mapping[str, Any], name: str) -> str:
+    value = payload.get(name)
+    if not isinstance(value, str) or not value or len(value) > 512:
+        raise SignatureVerificationError(f"signed {name} invalid")
+    return value
+
+
+def _expected(payload: Mapping[str, Any], expected: Mapping[str, Any], fields: tuple[str, ...]) -> None:
+    for name in fields:
+        if name not in expected:
+            raise SignatureVerificationError(f"verifier expected {name} missing")
+        actual = canonical_artifact(payload[name]) if name == "artifact" else payload[name]
+        wanted = canonical_artifact(expected[name]) if name == "artifact" else expected[name]
+        if actual != wanted:
+            raise SignatureVerificationError(f"signed {name} binding mismatch")
+
+
+def ed25519_release_receipt_verifier(
+    trusted_public_keys: Mapping[str, Any],
+) -> Callable[[Any, Mapping[str, Any]], VerifiedReceipt]:
+    """Build a receipt verifier from local/configured public keys only."""
+
+    keys = _trusted_keys(trusted_public_keys)
+
+    def verify(envelope: Any, expected: Mapping[str, Any]) -> VerifiedReceipt:
+        payload = _verified_payload(
+            envelope, keys,
+            schema="aios.release-operation-receipt-envelope.v1",
+            domain=RELEASE_RECEIPT_DOMAIN,
+            payload_fields=_RECEIPT_FIELDS,
+        )
+        _expected(
+            payload, expected,
+            ("tenant_id", "subject_id", "component_id", "task_id", "source_task_id", "source_effect_id",
+             "grant_id", "job_id", "effect_id", "operation_id", "deployment_id", "release_id", "artifact"),
+        )
+        if payload.get("outcome") != "SUCCEEDED":
+            raise SignatureVerificationError("signed receipt outcome is not SUCCEEDED")
+        if not isinstance(payload.get("observed"), Mapping):
+            raise SignatureVerificationError("signed receipt observation invalid")
+        return VerifiedReceipt(
+            receipt_id=_text(payload, "receipt_id"), tenant_id=_text(payload, "tenant_id"),
+            subject_id=_text(payload, "subject_id"), effect_id=_text(payload, "effect_id"),
+            component_id=_text(payload,"component_id"), task_id=_text(payload,"task_id"),
+            source_task_id=_text(payload,"source_task_id"), source_effect_id=_text(payload,"source_effect_id"),
+            grant_id=_text(payload,"grant_id"), job_id=_text(payload,"job_id"),
+            operation_id=_text(payload, "operation_id"), deployment_id=_text(payload, "deployment_id"),
+            release_id=_text(payload, "release_id"), artifact=payload["artifact"],
+            observed=dict(payload["observed"]), outcome="SUCCEEDED",
+            observed_at=_text(payload, "observed_at"),
+        )
+
+    return verify
+
+
+def ed25519_acceptance_evidence_verifier(
+    trusted_public_keys: Mapping[str, Any],
+) -> Callable[[Any, Mapping[str, Any]], VerifiedAcceptanceEvidence]:
+    """Build an acceptance verifier in a domain separate from stage receipts."""
+
+    keys = _trusted_keys(trusted_public_keys)
+
+    def verify(envelope: Any, expected: Mapping[str, Any]) -> VerifiedAcceptanceEvidence:
+        payload = _verified_payload(
+            envelope, keys,
+            schema="aios.release-acceptance-evidence-envelope.v1",
+            domain=ACCEPTANCE_EVIDENCE_DOMAIN,
+            payload_fields=_ACCEPTANCE_FIELDS,
+        )
+        _expected(
+            payload, expected,
+            ("acceptance_id", "tenant_id", "subject_id", "component_id", "deployment_id", "release_id", "artifact", "accepted"),
+        )
+        if type(payload.get("accepted")) is not bool:
+            raise SignatureVerificationError("signed accepted decision invalid")
+        if not isinstance(payload.get("observed"), Mapping):
+            raise SignatureVerificationError("signed acceptance observation invalid")
+        return VerifiedAcceptanceEvidence(
+            acceptance_id=_text(payload, "acceptance_id"), tenant_id=_text(payload, "tenant_id"),
+            subject_id=_text(payload, "subject_id"), deployment_id=_text(payload, "deployment_id"),
+            component_id=_text(payload,"component_id"),
+            release_id=_text(payload, "release_id"), artifact=payload["artifact"],
+            accepted=payload["accepted"], evidence_id=_text(payload, "evidence_id"),
+            observed=dict(payload["observed"]), observed_at=_text(payload, "observed_at"),
+        )
+
+    return verify
+
+
+__all__ = [
+    "ACCEPTANCE_EVIDENCE_DOMAIN", "RELEASE_RECEIPT_DOMAIN",
+    "SignatureVerificationError", "ed25519_acceptance_evidence_verifier",
+    "ed25519_release_receipt_verifier",
+]

active-runtime/app/aios_baseline/worker.py

@@ -0,0 +1,121 @@
+"""Thin resident worker loop over the authenticated HTTP transport.
+
+Worker policy, operation handlers, effects, receipts, and completion remain in
+the trusted server.  This process only maintains its registered transport
+identity and asks the service to run an offered claim.
+"""
+
+from __future__ import annotations
+
+import math
+import threading
+import time
+from typing import Any
+
+from .transport import TransportError
+
+
+class WorkerError(RuntimeError):
+    pass
+
+
+class OperationWorker:
+    HEARTBEAT_INTERVAL_SECONDS = 15.0
+
+    def __init__(self, transport: Any, poll_seconds: float = 1.0, stop_event=None):
+        required = (
+            "register_worker", "heartbeat", "claim_next", "renew", "execute_claim"
+        )
+        if transport is None or any(not callable(getattr(transport, name, None)) for name in required):
+            raise WorkerError("WORKER_TRANSPORT_INVALID")
+        if (
+            isinstance(poll_seconds, bool)
+            or not isinstance(poll_seconds, (int, float))
+            or not math.isfinite(float(poll_seconds))
+            or not 0.001 <= poll_seconds <= 60
+        ):
+            raise WorkerError("WORKER_POLL_INTERVAL_INVALID")
+        if stop_event is not None and (
+            not callable(getattr(stop_event, "is_set", None))
+            or not callable(getattr(stop_event, "wait", None))
+        ):
+            raise WorkerError("WORKER_STOP_EVENT_INVALID")
+        self.transport = transport
+        self.poll_seconds = float(poll_seconds)
+        self.stop_event = stop_event if stop_event is not None else threading.Event()
+        self.registered = False
+        self.worker_id: str | None = None
+        self._last_heartbeat = 0.0
+        self.last_error: str | None = None
+
+    def _register(self) -> None:
+        result = self.transport.register_worker()
+        if (
+            not isinstance(result, dict) or result.get("registered") is not True
+            or not isinstance(result.get("worker_id"), str) or not result["worker_id"]
+        ):
+            raise WorkerError("WORKER_REGISTRATION_RESULT_INVALID")
+        self.worker_id = result["worker_id"]
+        self.registered = True
+
+    def _heartbeat(self, *, force: bool = False) -> None:
+        now = time.monotonic()
+        if not force and now < self._last_heartbeat + self.HEARTBEAT_INTERVAL_SECONDS:
+            return
+        result = self.transport.heartbeat()
+        if (
+            not isinstance(result, dict) or result.get("alive") is not True
+            or result.get("worker_id") != self.worker_id
+        ):
+            raise WorkerError("WORKER_HEARTBEAT_RESULT_INVALID")
+        self._last_heartbeat = time.monotonic()
+
+    def run_once(self):
+        """Perform one register/heartbeat/claim/renew/execute iteration."""
+        if self.stop_event.is_set():
+            return None
+        just_registered = False
+        if not self.registered:
+            self._register()
+            just_registered = True
+        self._heartbeat(force=just_registered)
+        claim = self.transport.claim_next()
+        if claim is None:
+            self.last_error = None
+            return None
+        required = {"task_id", "claim_id", "generation", "lease_until", "operation"}
+        if not isinstance(claim, dict) or set(claim) != required:
+            raise WorkerError("WORKER_CLAIM_RESULT_INVALID")
+        task_id = claim["task_id"]
+        claim_id = claim["claim_id"]
+        if not isinstance(task_id, str) or not task_id or not isinstance(claim_id, str) or not claim_id:
+            raise WorkerError("WORKER_CLAIM_RESULT_INVALID")
+        renewed = self.transport.renew(task_id, claim_id)
+        if (
+            not isinstance(renewed, dict) or renewed.get("renewed") is not True
+            or renewed.get("task_id") != task_id or renewed.get("claim_id") != claim_id
+        ):
+            raise WorkerError("WORKER_RENEW_RESULT_INVALID")
+        result = self.transport.execute_claim(task_id, claim_id)
+        if not isinstance(result, dict) or result.get("task_id") != task_id:
+            raise WorkerError("WORKER_EXECUTION_RESULT_INVALID")
+        self.last_error = None
+        return result
+
+    def run_forever(self) -> None:
+        """Run until the supplied stop event is set, using interruptible waits."""
+        while not self.stop_event.is_set():
+            try:
+                self.run_once()
+            except TransportError as exc:
+                # Transport failures are observable and retried on the next
+                # bounded poll. Re-register after a server restart; programming
+                # and schema errors still terminate.
+                self.last_error = exc.code
+                self.registered = False
+            self.stop_event.wait(self.poll_seconds)
+
+
+Worker = OperationWorker
+
+__all__ = ["OperationWorker", "Worker", "WorkerError"]

active-runtime/app/aios_baseline/worker_policy.py

@@ -0,0 +1,51 @@
+"""Registered worker eligibility; fallback is deployment policy, never a special actor."""
+from dataclasses import dataclass
+import math
+from typing import Mapping
+
+
+@dataclass(frozen=True)
+class WorkerProfile:
+    worker_id: str
+    identity: str
+    tenant_scope: tuple[str, ...]
+    subject_scope: tuple[str, ...]
+    capabilities: tuple[str, ...]
+    priority: int
+    fallback_executor: bool
+    heartbeat_seconds: int
+    max_concurrency: int
+
+    @classmethod
+    def from_dict(cls, value: Mapping):
+        if set(value) != set(cls.__dataclass_fields__):
+            raise ValueError('WORKER_PROFILE_FIELDS_INVALID')
+        data = dict(value)
+        for name in ('worker_id', 'identity'):
+            if not isinstance(data[name], str) or not data[name] or len(data[name]) > 128:
+                raise ValueError('WORKER_ID_INVALID')
+        for name in ('tenant_scope', 'subject_scope', 'capabilities'):
+            items = data[name]
+            if not isinstance(items, (list, tuple)) or not items or any(not isinstance(x, str) or not x or '*' in x for x in items):
+                raise ValueError('WORKER_SCOPE_INVALID')
+            data[name] = tuple(sorted(set(items)))
+        if type(data['fallback_executor']) is not bool:
+            raise ValueError('WORKER_FALLBACK_INVALID')
+        for name, lower, upper in (('priority', 0, 1000), ('heartbeat_seconds', 1, 300), ('max_concurrency', 1, 32)):
+            if type(data[name]) is not int or not lower <= data[name] <= upper:
+                raise ValueError('WORKER_LIMIT_INVALID')
+        return cls(**data)
+
+
+def eligible(worker: WorkerProfile, task: Mapping, *, now: float, last_heartbeat: float,
+             fallback_seconds: int = 600) -> bool:
+    ready_at = task.get('ready_at')
+    if any(type(value) not in (int,float) or not math.isfinite(value) for value in (ready_at,now,last_heartbeat)) or ready_at > now:
+        return False
+    if last_heartbeat > now or now > last_heartbeat + worker.heartbeat_seconds * 3:
+        return False
+    if task.get('tenant_id') not in worker.tenant_scope or task.get('subject_id') not in worker.subject_scope:
+        return False
+    if task.get('operation') not in worker.capabilities:
+        return False
+    return not worker.fallback_executor or now >= ready_at + fallback_seconds

active-runtime/app/aios_chatgpt_actions_api.py

@@ -24,7 +24,13 @@ from gitea_tag_publication import (
     validate_version,
     validate_gitea_api_url,
 )
-from orchestrator.action_monitor import ActionMonitor
+try:
+    from orchestrator.action_monitor import ActionMonitor
+except ModuleNotFoundError:
+    # The deployed service normally supplies runtime/agent-os on sys.path.
+    # Keep direct, isolated contract execution bound to the repository copy.
+    sys.path.insert(0, str(Path(__file__).resolve().parents[2] / "runtime" / "agent-os"))
+    from orchestrator.action_monitor import ActionMonitor
 from silent_release_hardening import (
     ApprovalKeyRing,
     ApprovalRevocationStore,
@@ -64,6 +70,11 @@ except ModuleNotFoundError:
         repository_snapshot,
         run_authoritative_git,
     )
+try:
+    from aios_repository_discovery import RepositoryDiscovery, RepositoryDiscoveryError
+except ModuleNotFoundError:
+    sys.path.insert(0, str(Path(__file__).resolve().parent))
+    from aios_repository_discovery import RepositoryDiscovery, RepositoryDiscoveryError
 
 ROOT = Path(os.getenv('AIOS_GITOPS_ROOT', '/data/aios-gitops'))
 WS = Path(os.getenv('AIOS_GITOPS_WORKSPACE', str(ROOT / 'workspace')))
@@ -109,6 +120,8 @@ READ_ONLY_GET_PATHS = frozenset({
     '/admin/ai-evolution/api/data',
     '/api/release-consistency', '/api/tag-publication-status',
     '/api/release-acceptance',
+    '/api/repository/tree', '/api/repository/search',
+    '/api/repository/diff-index', '/api/repository/file',
     '/getReleaseCandidate', '/getReleasePlan', '/getReleaseAcceptance',
     '/getApprovalEnvelope', '/getReleaseSaga', '/getCapabilityStatus',
     '/getRecoveryStatus',
@@ -342,6 +355,77 @@ def required_authoritative_git_dir() -> Path:
     return Path(str(snapshot["authoritative_git_dir"]))
 
 
+_DISCOVERY_ACTIONS = {
+    '/api/repository/tree': (
+        'list_repository_tree',
+        {'repository', 'ref', 'limit'},
+        {'prefix', 'depth', 'cursor'},
+    ),
+    '/api/repository/search': (
+        'search_repository_source',
+        {'repository', 'ref', 'query', 'max_matches', 'max_bytes'},
+        {'path_globs', 'cursor'},
+    ),
+    '/api/repository/diff-index': (
+        'get_diff_index',
+        {'repository', 'from', 'to', 'limit'},
+        {'path_prefix', 'cursor'},
+    ),
+    '/api/repository/file': (
+        'read_repository_file',
+        {'repository', 'ref', 'path'},
+        {'max_bytes'},
+    ),
+}
+
+
+def repository_discovery_request(
+    path: str, query: dict[str, list[str]]
+) -> dict[str, Any]:
+    operation, required, optional = _DISCOVERY_ACTIONS[path]
+    if set(query) - required - optional:
+        raise ValueError('unknown repository discovery query field')
+    request: dict[str, Any] = {}
+    for key, values in query.items():
+        if key == 'path_globs':
+            if not values:
+                raise ValueError('empty repository discovery path glob')
+            request[key] = list(values)
+            continue
+        if len(values) != 1:
+            raise ValueError('duplicate repository discovery query field')
+        value: Any = values[0]
+        if key in {'depth', 'limit', 'max_matches', 'max_bytes'}:
+            try:
+                value = int(value, 10)
+            except (TypeError, ValueError) as exc:
+                raise ValueError('invalid repository discovery integer') from exc
+        request[key] = value
+    if required - set(request):
+        raise ValueError('missing repository discovery query field')
+    if not REPOSITORY_IDENTITY:
+        raise RepositoryDiscoveryError('REPOSITORY_DISCOVERY_UNAVAILABLE')
+    try:
+        discovery = RepositoryDiscovery(
+            allowed_repositories=(REPOSITORY_IDENTITY,),
+            git_dir=required_authoritative_git_dir(),
+            cursor_secret=os.getenv('AIOS_REPOSITORY_DISCOVERY_CURSOR_SECRET'),
+        )
+    except RuntimeError as exc:
+        if isinstance(exc, RepositoryDiscoveryError):
+            raise
+        raise RepositoryDiscoveryError('REPOSITORY_DISCOVERY_UNAVAILABLE') from exc
+    public_to_internal = {
+        'ref': 'revision',
+        'path': 'file_path',
+        'path_prefix': 'prefix',
+    }
+    internal_request = {
+        public_to_internal.get(key, key): value for key, value in request.items()
+    }
+    return dict(getattr(discovery, operation)(internal_request))
+
+
 def publication_publisher() -> TagPublisher:
     authoritative_repo = required_authoritative_git_dir()
     publisher = TagPublisher(
@@ -441,6 +525,8 @@ class H(BaseHTTPRequestHandler):
             return self.sendj({'error': 'GOVERNED_BRIDGE_UNAVAILABLE', 'detail': type(exc).__name__}, 503)
     def do_POST(self):
         path = urllib.parse.urlparse(self.path).path
+        if path in _DISCOVERY_ACTIONS:
+            return self.sendj({'error': 'method_not_allowed'},405)
         if path in {
             '/createTagApprovalRequest', '/requestOrCreateTag', '/getTagPublicationStatus',
             '/buildProductionArtifact', '/executeApprovedProductionRelease',
@@ -456,12 +542,21 @@ class H(BaseHTTPRequestHandler):
     def do_GET(self):
         u=urllib.parse.urlparse(self.path); path=u.path.rstrip('/') if u.path != '/' else u.path
         if path not in READ_ONLY_GET_PATHS: return self.sendj({'error':'not_found','path':path},404)
-        q=urllib.parse.parse_qs(u.query)
+        if len(self.path) > 8192:
+            return self.sendj({'error':'query_too_large'},413)
+        try:
+            q=urllib.parse.parse_qs(
+                u.query, keep_blank_values=True, max_num_fields=64
+            )
+        except ValueError:
+            return self.sendj({'error':'query_invalid'},400)
         try:
             if path in ('/health','/api/health'): return self.sendj({'status':'ok','service':'chatgpt-gitops-adapter','workspace':str(WS)})
             if path in ('/api/openapi.yaml','/api/openapi-chatgpt-actions.yaml','/api/schema'):
                 return self.sendt(OPENAPI.read_text(encoding='utf-8'), 'application/yaml; charset=utf-8') if OPENAPI.exists() else self.sendj({'error':'schema_missing'},404)
             if path in ('/api','/api/status'): return self.sendj(api_spec())
+            if path in _DISCOVERY_ACTIONS:
+                return self.sendj(repository_discovery_request(path, q))
             if path in ('/api/base','/api/baseline','/base'):
                 data=jload(WS/'baseline'/'current.json', {})
                 data.setdefault('authoritative_repository', repository_snapshot(
@@ -648,6 +743,8 @@ class H(BaseHTTPRequestHandler):
             return self.sendj({'error':'not_found','path':path},404)
         except FileNotFoundError:
             return self.sendj({'error':'release candidate not found'},404)
+        except RepositoryDiscoveryError as e:
+            return self.sendj({'error': redact(e)}, getattr(e, 'status_code', 400))
         except ValueError as e:
             error=redact(e)
             monitor.record_failure('do_GET', error, {'path':path})
@@ -664,6 +761,8 @@ class H(BaseHTTPRequestHandler):
         return self.sendj({'error':'not_found','path':path},404)
     def do_POST(self):
         path=urllib.parse.urlparse(self.path).path.rstrip('/')
+        if path in _DISCOVERY_ACTIONS:
+            return self.sendj({'error':'method_not_allowed'},405)
         if reject_non_read_http(self, 'POST', path): return
         data=self.body()
         try:
@@ -960,7 +1059,7 @@ return{vs,cmds,ar,cmd,cdet,tot,sok,sfail,runs,baseline,refreshMsg,loadCmd,selVer
 
 
 def api_spec():
-    return {'version':'V1R1C0-chatgpt-actions','openapi':'/api/openapi.yaml','read':['GET /api/base','GET /api/ver','GET /api/diff','GET /api/patch','GET /api/model','GET /api/run','GET /getReleaseCandidate','GET /getApprovalEnvelope','GET /getReleaseSaga','GET /admin/ai-evolution'],'write':['POST /api/branch','POST /api/file','POST /api/commit','POST /api/patch','POST /api/tag','POST /api/rollback','POST /api/model','PUT /api/model-priority','POST /api/nl','POST /createReleaseCandidate','POST /submitOwnerApproval','POST /startDeployment'],'policy':{'bearer_required_for_write':True,'direct_main_push':False,'delete_tag':False,'owner_approval_required_for_v_level':True,'api_keys_in_git':False,'git_secret_field':'secret_ref','online_git_sync':True,'silent_release_execution_enabled':SILENT_RELEASE_EXECUTION_ENABLED,'silent_release_shadow_default':True}}
+    return {'version':'V1R1C0-chatgpt-actions','openapi':'/api/openapi.yaml','read':['GET /api/base','GET /api/ver','GET /api/diff','GET /api/repository/tree','GET /api/repository/search','GET /api/repository/diff-index','GET /api/repository/file','GET /api/patch','GET /api/model','GET /api/run','GET /getReleaseCandidate','GET /getApprovalEnvelope','GET /getReleaseSaga','GET /admin/ai-evolution'],'write':['POST /api/branch','POST /api/file','POST /api/commit','POST /api/patch','POST /api/tag','POST /api/rollback','POST /api/model','PUT /api/model-priority','POST /api/nl','POST /createReleaseCandidate','POST /submitOwnerApproval','POST /startDeployment'],'policy':{'bearer_required_for_write':True,'direct_main_push':False,'delete_tag':False,'owner_approval_required_for_v_level':True,'api_keys_in_git':False,'git_secret_field':'secret_ref','online_git_sync':True,'silent_release_execution_enabled':SILENT_RELEASE_EXECUTION_ENABLED,'silent_release_shadow_default':True}}
 
 def main():
     validate_gitea_api_url(os.getenv('AIOS_GITOPS_GITEA_API_URL', ''))

active-runtime/app/aios_chatgpt_bridge_v2.py

@@ -6,6 +6,12 @@ import hashlib
 from pathlib import Path
 from typing import Any, Callable, Mapping
 
+from aios_task_admission_bridge_contract import (
+    TASK_ADMISSION_OPERATION_OPTIONAL_FIELDS,
+    TASK_ADMISSION_OPERATION_REQUIRED_FIELDS,
+    TASK_ADMISSION_ROUTES,
+)
+
 
 BRIDGE_SCHEMA_VERSION = "aios.chatgpt-gitops-bridge.v2"
 BRIDGE_OPERATIONS = (
@@ -27,17 +33,23 @@ BRIDGE_OPERATIONS = (
     "getReleaseConsistency",
     "runReleaseAcceptance",
     "getControlPlaneSnapshot",
+    "listRepositoryTree",
+    "searchRepositorySource",
+    "getDiffIndex",
+    "readRepositoryFile",
 )
 
+TASK_ADMISSION_OPERATIONS = tuple(TASK_ADMISSION_OPERATION_REQUIRED_FIELDS)
+
 OPERATION_REQUIRED_FIELDS = {
     "createGovernedTask": ("task_id", "repository", "base_oid", "target_branch", "risk", "description", "idempotency_key"),
     "projectOnlineAgentExecution": ("task_id", "required_capabilities"),
-    "acquireWriterLease": ("schema", "task_id", "repository", "branch_mode", "base_oid", "expected_branch_oid", "target_branch", "generation", "lease_seconds"),
-    "commitFileGoverned": ("task_id", "repository", "expected_branch_oid", "target_branch", "generation", "idempotency_key", "path", "content_base64", "message"),
-    "commitFilesGoverned": ("task_id", "repository", "expected_branch_oid", "target_branch", "generation", "idempotency_key", "files", "message"),
-    "getGitOpsJob": ("job_id",),
-    "resumeGitOpsJob": ("job_id", "expected_revision"),
-    "reconcileGitOpsJob": ("job_id", "expected_revision"),
+    "acquireWriterLease": ("schema", "task_id", "job_id", "repository", "branch_mode", "base_oid", "expected_branch_oid", "target_branch", "generation", "idempotency_key", "lease_seconds"),
+    "commitFileGoverned": ("task_id", "job_id", "repository", "expected_branch_oid", "target_branch", "generation", "idempotency_key", "path", "content_base64", "message"),
+    "commitFilesGoverned": ("task_id", "job_id", "repository", "expected_branch_oid", "target_branch", "generation", "idempotency_key", "files", "message"),
+    "getGitOpsJob": ("task_id", "job_id"),
+    "resumeGitOpsJob": ("task_id", "job_id", "expected_revision"),
+    "reconcileGitOpsJob": ("task_id", "job_id", "expected_revision"),
     "createTagApprovalRequest": ("version", "target_oid", "evidence_closure_oid", "approval_plan_id", "owner_approval", "execute"),
     "requestOrCreateTag": ("version", "target_oid", "evidence_closure_oid", "approval_plan_id", "execute"),
     "getTagPublicationStatus": ("version",),
@@ -46,8 +58,32 @@ OPERATION_REQUIRED_FIELDS = {
     "getReleaseConsistency": ("version", "target_oid", "evidence_closure_oid", "approval_plan_id"),
     "runReleaseAcceptance": ("version", "target_oid", "evidence_closure_oid", "approval_plan_id"),
     "getControlPlaneSnapshot": (),
+    **TASK_ADMISSION_OPERATION_REQUIRED_FIELDS,
+    "listRepositoryTree": ("repository", "ref", "limit"),
+    "searchRepositorySource": ("repository", "ref", "query", "max_matches", "max_bytes"),
+    "getDiffIndex": ("repository", "from", "to", "limit"),
+    "readRepositoryFile": ("repository", "ref", "path"),
 }
 
+OPERATION_OPTIONAL_FIELDS = {
+    "listRepositoryTree": ("prefix", "depth", "cursor"),
+    "searchRepositorySource": ("path_globs", "cursor"),
+    "getDiffIndex": ("path_prefix", "cursor"),
+    "readRepositoryFile": ("max_bytes",),
+}
+
+READ_ONLY_OPERATIONS = frozenset(
+    {
+        "getRuntimeStatus",
+        "getGovernedWriteCapabilities",
+        "getControlPlaneSnapshot",
+        "listRepositoryTree",
+        "searchRepositorySource",
+        "getDiffIndex",
+        "readRepositoryFile",
+    }
+)
+
 _OPERATION_PATHS = {
     "createGovernedTask": "/v2/governed-task",
     "projectOnlineAgentExecution": "/v2/execution-envelope",
@@ -60,19 +96,54 @@ _OPERATION_PATHS = {
     "getTagPublicationStatus": "/v2/tag/status",
     "getReleaseConsistency": "/v2/release/consistency",
     "runReleaseAcceptance": "/v2/release/acceptance",
+    **{operation: path for path, operation in TASK_ADMISSION_ROUTES.items()},
+    "listRepositoryTree": "/v2/repository/tree",
+    "searchRepositorySource": "/v2/repository/search",
+    "getDiffIndex": "/v2/repository/diff-index",
+    "readRepositoryFile": "/v2/repository/file",
 }
 
 
-def operation_contracts() -> dict[str, dict[str, object]]:
+def _has_complete_task_admission_handlers(
+    handlers: Mapping[str, Callable[[Mapping[str, Any]], Any]] | None,
+) -> bool:
+    return handlers is not None and all(
+        callable(handlers.get(operation)) for operation in TASK_ADMISSION_OPERATIONS
+    )
+
+
+def operation_contracts(
+    handlers: Mapping[str, Callable[[Mapping[str, Any]], Any]] | None = None,
+) -> dict[str, dict[str, object]]:
     """Return the runtime contract consumed by adapters and schema tooling."""
-    return {
+    contracts = {
         operation: {
-            "method": "POST",
+            "method": "GET" if operation in OPERATION_OPTIONAL_FIELDS else "POST",
             "path": _OPERATION_PATHS.get(operation),
             "required_fields": list(fields),
+            "optional_fields": list(OPERATION_OPTIONAL_FIELDS.get(operation, ())),
+            "read_only": operation in READ_ONLY_OPERATIONS,
         }
         for operation, fields in OPERATION_REQUIRED_FIELDS.items()
+        if operation not in TASK_ADMISSION_OPERATIONS
     }
+    if _has_complete_task_admission_handlers(handlers):
+        contracts.update(
+            {
+                operation: {
+                    "method": "GET" if operation == "getTaskAdmissionStatus" else "POST",
+                    "path": _OPERATION_PATHS[operation],
+                    "required_fields": list(
+                        TASK_ADMISSION_OPERATION_REQUIRED_FIELDS[operation]
+                    ),
+                    "optional_fields": list(
+                        TASK_ADMISSION_OPERATION_OPTIONAL_FIELDS[operation]
+                    ),
+                }
+                for operation in TASK_ADMISSION_OPERATIONS
+            }
+        )
+    return contracts
 
 
 def render_openapi_contract_fragment() -> str:
@@ -85,6 +156,8 @@ def render_openapi_contract_fragment() -> str:
         "    post:\n"
         "      operationId: commitFilesGoverned\n"
         "      summary: Submit one atomic governed commit containing multiple files\n"
+        "      security: [{taskPrincipalAuth: []}]\n"
+        "      x-aios-task-principal: Bridge resolves a fresh server-side TaskPrincipal from the authoritative admitted+claimed Task and re-verifies its Owner epoch, then checks exact task/job/repository/branch/generation/capability binding; caller JSON cannot provide a principal and missing verification is denied. An explicitly injected legacy bearer verifier may still be used by a trusted host.\n"
         "      requestBody:\n"
         "        required: true\n"
         "        content:\n"
@@ -116,8 +189,12 @@ def render_openapi_contract_fragment() -> str:
         "                message: {type: string, minLength: 1, maxLength: 200}\n"
         "      responses:\n"
         "        '200': {description: Governed commit job and verified branch result}\n"
+        "        '202': {description: Existing external Job alias requires authoritative reconciliation; no replacement Job is created}\n"
+        "        '401': {description: No verified Task principal is available}\n"
+        "        '403': {description: Verified Task principal lacks exact task, external Job, or capability scope}\n"
         "        '400': {description: Contract or policy rejection}\n"
         "        '409': {description: Branch CAS or idempotency conflict}\n"
+        "        '423': {description: Narrow P0 Task-principal mutation gate is frozen; assertion is not consumed}\n"
     )
 
 
@@ -183,20 +260,38 @@ class ControlPlaneReleaseManifest:
 class BridgeV2Adapter:
     """Thin operation adapter; all mutating handlers are injected seams."""
 
-    def __init__(self, *, runtime_status: Mapping[str, Any], handlers: Mapping[str, Callable[[Mapping[str, Any]], Any]] | None = None) -> None:
-        self.runtime_status = dict(runtime_status)
+    def __init__(self, *, runtime_status: Mapping[str, Any] | Callable[[], Mapping[str, Any]], handlers: Mapping[str, Callable[[Mapping[str, Any]], Any]] | None = None) -> None:
+        self._runtime_status_source = runtime_status if callable(runtime_status) else dict(runtime_status)
         self.handlers = dict(handlers or {})
 
+    def _runtime_status(self) -> dict[str, Any]:
+        value = self._runtime_status_source() if callable(self._runtime_status_source) else self._runtime_status_source
+        if not isinstance(value, Mapping):
+            raise BridgeV2Error("RUNTIME_STATUS_INVALID")
+        return dict(value)
+
     def getRuntimeStatus(self) -> dict[str, Any]:
-        return {"bridge_schema_version": BRIDGE_SCHEMA_VERSION, **self.runtime_status}
+        return {"bridge_schema_version": BRIDGE_SCHEMA_VERSION, **self._runtime_status()}
 
     def getGovernedWriteCapabilities(self) -> dict[str, Any]:
+        runtime_status = self._runtime_status()
+        governed_writes_enabled = runtime_status.get("governed_writes_enabled") is True
         return {
             "bridge_schema_version": BRIDGE_SCHEMA_VERSION,
             "legacy_writes_enabled": False,
-            "governed_writes_enabled": True,
-            "operations": list(BRIDGE_OPERATIONS),
-            "operation_contracts": operation_contracts(),
+            "governed_writes_enabled": governed_writes_enabled,
+            "governed_write_blockers": list(
+                runtime_status.get("governed_write_blockers") or []
+            ),
+            "operations": [
+                *BRIDGE_OPERATIONS,
+                *(
+                    TASK_ADMISSION_OPERATIONS
+                    if _has_complete_task_admission_handlers(self.handlers)
+                    else ()
+                ),
+            ],
+            "operation_contracts": operation_contracts(self.handlers),
             "force_push": False,
             "main_write": False,
             "tag_write": False,
@@ -213,12 +308,16 @@ class BridgeV2Adapter:
 
     @staticmethod
     def legacy_write_disabled() -> dict[str, object]:
-        return {"error": "LEGACY_WRITE_DISABLED", "replacement": "createGovernedTask", "governed_writes_available": True}
+        return {"error": "LEGACY_WRITE_DISABLED", "replacement": "createGovernedTask", "governed_writes_available": False}
 
     def _call(self, operation: str, request: Mapping[str, Any]) -> Any:
         required = OPERATION_REQUIRED_FIELDS[operation]
         if any(key not in request for key in required):
             raise BridgeV2Error("BRIDGE_REQUEST_FIELDS_MISSING")
+        if operation in OPERATION_OPTIONAL_FIELDS:
+            allowed = set(required) | set(OPERATION_OPTIONAL_FIELDS[operation])
+            if set(request) - allowed:
+                raise BridgeV2Error("BRIDGE_REQUEST_FIELDS_UNKNOWN")
         handler = self.handlers.get(operation)
         if handler is None:
             raise BridgeV2Error("GOVERNED_HANDLER_UNAVAILABLE")
@@ -239,5 +338,12 @@ class BridgeV2Adapter:
     def executeApprovedProductionRelease(self, request: Mapping[str, Any]) -> Any: return self._call("executeApprovedProductionRelease", request)
     def getReleaseConsistency(self, request: Mapping[str, Any]) -> Any: return self._call("getReleaseConsistency", request)
     def runReleaseAcceptance(self, request: Mapping[str, Any]) -> Any: return self._call("runReleaseAcceptance", request)
+    def getTaskAdmissionEnvelope(self, request: Mapping[str, Any]) -> Any: return self._call("getTaskAdmissionEnvelope", request)
+    def submitTaskAdmissionAuthorization(self, request: Mapping[str, Any]) -> Any: return self._call("submitTaskAdmissionAuthorization", request)
+    def getTaskAdmissionStatus(self, request: Mapping[str, Any]) -> Any: return self._call("getTaskAdmissionStatus", request)
+    def listRepositoryTree(self, request: Mapping[str, Any]) -> Any: return self._call("listRepositoryTree", request)
+    def searchRepositorySource(self, request: Mapping[str, Any]) -> Any: return self._call("searchRepositorySource", request)
+    def getDiffIndex(self, request: Mapping[str, Any]) -> Any: return self._call("getDiffIndex", request)
+    def readRepositoryFile(self, request: Mapping[str, Any]) -> Any: return self._call("readRepositoryFile", request)
 
     def getControlPlaneSnapshot(self, request: Mapping[str, Any] | None = None) -> Any: return self._call("getControlPlaneSnapshot", request or {})

active-runtime/app/aios_chatgpt_bridge_v2_server.py

@@ -11,19 +11,40 @@ from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 from pathlib import Path
 import re
 import sqlite3
-from typing import Any, Mapping
+import stat
+from typing import Any, Callable, Mapping
+from urllib.parse import parse_qsl, urlsplit
 
 from aios_authority_git_executor import AuthorityGitExecutor
-from aios_chatgpt_bridge_v2 import BridgeV2Adapter, BridgeV2Error, OPERATION_REQUIRED_FIELDS
+from aios_chatgpt_bridge_v2 import (
+    BridgeV2Adapter,
+    BridgeV2Error,
+    OPERATION_OPTIONAL_FIELDS,
+    OPERATION_REQUIRED_FIELDS,
+    TASK_ADMISSION_OPERATIONS,
+    TASK_ADMISSION_OPERATION_OPTIONAL_FIELDS,
+    TASK_ADMISSION_ROUTES,
+)
+from aios_repository_discovery import RepositoryDiscovery, RepositoryDiscoveryError
+from aios_task_admission_bootstrap import TaskAdmissionError
 from gitea_tag_publication import validate_gitea_api_url
 from aios_continuation_executor import AuthorityGitAdapter, ContinuationCommit, ContinuationExecutor, ContinuationPermissions, ContinuationRuntimeBinding, DetachedGitWorkspace, GiteaContinuationRemote, ServerSideCredentialProjection
 from aios_continuation_lease import WriterLeaseRequestV2
 from aios_control_plane_snapshot import build_control_plane_snapshot
 from aios_gitops_job_controller import GitOpsJobController, JobState, JobStore, _RECOVERABLE, sha256_json
-from aios_governed_task_bootstrap import BootstrapError, GovernedTaskBootstrap
+from aios_governed_task_bootstrap import (
+    BootstrapError,
+    GovernedTaskBinding,
+    GovernedTaskBootstrap,
+)
 from governed_production_release import build_executor_config
+from aios_baseline.runtime_contract import evaluate_deployment
 
 MAX_BODY = 2 * 1024 * 1024
+TaskPrincipalVerifier = Callable[
+    [Mapping[str, Any], Mapping[str, Any]], Mapping[str, Any] | None
+]
+_PRIVATE_PRINCIPAL = "_verified_task_principal"
 ROUTES = {
     "/v2/runtime": "getRuntimeStatus",
     "/v2/capabilities": "getGovernedWriteCapabilities",
@@ -42,8 +63,27 @@ ROUTES = {
     "/v2/release/execute": "executeApprovedProductionRelease",
     "/v2/release/consistency": "getReleaseConsistency",
     "/v2/release/acceptance": "runReleaseAcceptance",
+    "/v2/task-admission/envelope": "getTaskAdmissionEnvelope",
+    "/v2/task-admission/authorize": "submitTaskAdmissionAuthorization",
+    "/v2/task-admission/status": "getTaskAdmissionStatus",
+    "/v2/repository/tree": "listRepositoryTree",
+    "/v2/repository/search": "searchRepositorySource",
+    "/v2/repository/diff-index": "getDiffIndex",
+    "/v2/repository/file": "readRepositoryFile",
 }
 
+# Admission is deliberately separate from a TaskPrincipal.  A successful
+# admission can create only its durable, Owner-authorized Task record; every
+# Git-mutating operation still requires a verified TaskPrincipal and this
+# independently evaluated runtime gate.
+_TASK_PRINCIPAL_MUTATING_OPERATIONS = frozenset({
+    "acquireWriterLease",
+    "commitFileGoverned",
+    "commitFilesGoverned",
+    "resumeGitOpsJob",
+    "reconcileGitOpsJob",
+})
+
 
 @dataclass(frozen=True, slots=True)
 class RuntimeConfig:
@@ -63,12 +103,84 @@ class RuntimeConfig:
     baseline_path: Path = Path("/var/lib/aios-gitops-runtime-anchor/baseline/current.json")
     health_url: str = "http://127.0.0.1:18927/health"
     release_plan_path: Path | None = None
+    repository_discovery_cursor_secret: str | bytes | None = None
 
 
 def _safe(value: str) -> str:
     return re.sub(r"[^A-Za-z0-9_.-]+", "-", value).strip("-")[:120] or "runtime"
 
 
+def _unknown_production() -> dict[str, Any]:
+    return {
+        "baseline_version": None,
+        "target_oid": None,
+        "deployment_state": "UNKNOWN",
+    }
+
+
+def load_production_observation(
+    path: Path,
+    now: datetime | str | None = None,
+) -> dict[str, Any]:
+    """Project production fields only from a fresh validated observation bundle."""
+
+    try:
+        metadata = path.lstat()
+        if (
+            stat.S_ISLNK(metadata.st_mode)
+            or not stat.S_ISREG(metadata.st_mode)
+            or metadata.st_mode & 0o022
+            or metadata.st_size < 2
+            or metadata.st_size > 1024 * 1024
+        ):
+            return _unknown_production()
+
+        def strict_object(pairs: list[tuple[str, Any]]) -> dict[str, Any]:
+            result: dict[str, Any] = {}
+            for key, value in pairs:
+                if key in result:
+                    raise ValueError("PRODUCTION_OBSERVATION_DUPLICATE_FIELD")
+                result[key] = value
+            return result
+
+        bundle = json.loads(path.read_text(encoding="utf-8"), object_pairs_hook=strict_object)
+    except (OSError, UnicodeError, ValueError, TypeError):
+        return _unknown_production()
+    if not isinstance(bundle, dict) or set(bundle) != {
+        "contract",
+        "target",
+        "observation",
+        "provenance",
+    }:
+        return _unknown_production()
+    try:
+        result = evaluate_deployment(
+            bundle["contract"],
+            bundle["target"],
+            bundle["observation"],
+            bundle["provenance"],
+            now or datetime.now(timezone.utc),
+        )
+    except (TypeError, ValueError):
+        return _unknown_production()
+    target = bundle["target"]
+    release_id = target.get("release_id") if isinstance(target, Mapping) else None
+    target_oid = target.get("target_oid") if isinstance(target, Mapping) else None
+    if (
+        result.get("status") != "VERIFIED"
+        or not isinstance(release_id, str)
+        or not release_id.strip()
+        or not isinstance(target_oid, str)
+        or re.fullmatch(r"[0-9a-f]{40}", target_oid) is None
+    ):
+        return _unknown_production()
+    return {
+        "baseline_version": release_id,
+        "target_oid": target_oid,
+        "deployment_state": "ACTIVE",
+    }
+
+
 class GovernedRuntime:
     def __init__(self, config: RuntimeConfig) -> None:
         self.config = config
@@ -79,6 +191,7 @@ class GovernedRuntime:
         self.controllers: dict[str, GitOpsJobController] = {}
         self.bindings: dict[str, dict[str, Any]] = {}
         self.release = build_executor_config(config)
+        self._repository_discovery_instance: RepositoryDiscovery | None = None
         metadata_root = config.state_root / "task-bindings"
         if metadata_root.is_dir():
             for metadata in metadata_root.glob("*.json"):
@@ -95,6 +208,34 @@ class GovernedRuntime:
         os.environ.setdefault("GIT_ASKPASS", str(askpass)); os.environ.setdefault("GIT_ASKPASS_REQUIRE", "force"); os.environ.setdefault("GIT_TERMINAL_PROMPT", "0"); os.environ.setdefault("GITEA_MACHINE_ACTOR", "aios-autonomy-agent")
 
     def runtime_status(self) -> dict[str, Any]:
+        verifier = BridgeHandler.principal_verifier
+        readiness_reader = getattr(verifier, "readiness", None)
+        if callable(readiness_reader):
+            try:
+                principal_readiness = dict(readiness_reader())
+            except Exception:
+                principal_readiness = {
+                    "ready": False,
+                    "error": "TASK_PRINCIPAL_SEALED_READINESS_UNAVAILABLE",
+                }
+        else:
+            principal_readiness = {
+                "ready": False,
+                "error": "TASK_PRINCIPAL_SEALED_READINESS_UNAVAILABLE",
+            }
+        legacy_global_writes_enabled = os.environ.get(
+            "AIOS_GITOPS_WRITES_ENABLED", "false"
+        ).strip().lower() in {"1", "true", "yes", "on"}
+        task_principal_writes_enabled = os.environ.get(
+            "AIOS_P0_TASK_PRINCIPAL_WRITES_ENABLED", "false"
+        ).strip().lower() in {"1", "true", "yes", "on"}
+        blockers: list[str] = []
+        if principal_readiness.get("ready") is not True:
+            blockers.append("TASK_PRINCIPAL_VERIFIER_NOT_READY")
+        if legacy_global_writes_enabled:
+            blockers.append("LEGACY_GLOBAL_WRITES_MUST_REMAIN_DISABLED")
+        if not task_principal_writes_enabled:
+            blockers.append("TASK_PRINCIPAL_WRITES_DISABLED")
         return {
             "status": "active",
             "health": 200,
@@ -109,9 +250,100 @@ class GovernedRuntime:
             "repository": self.config.repository,
             "repository_identity": self.config.repository,
             "authoritative_git_dir": str(self.config.authoritative_git_dir),
-            "legacy_global_writes_enabled": False,
+            "legacy_global_writes_enabled": legacy_global_writes_enabled,
+            "task_principal_writes_enabled": task_principal_writes_enabled,
+            "principal_verifier_configured": verifier is not None,
+            "task_principal_readiness": principal_readiness,
+            "governed_writes_enabled": not blockers,
+            "governed_write_blockers": blockers,
         }
 
+    def project_admitted_task(
+        self,
+        grant: Any,
+        task_result: Mapping[str, Any],
+    ) -> Mapping[str, Any]:
+        """Durably bind one verified admission to its exact local Job input.
+
+        This hook is called only after the Agent Task API returns an exact
+        readback.  It writes a local binding, not a Job or a lease; later
+        TaskPrincipal-gated continuation remains responsible for every Git
+        side effect.
+        """
+        task_id = str(getattr(grant, "task_id", ""))
+        repository = str(getattr(grant, "repository", ""))
+        base_oid = str(getattr(grant, "authority_base_oid", ""))
+        target_branch = str(getattr(grant, "target_branch", ""))
+        risk = str(getattr(grant, "risk", ""))
+        generation = int(getattr(grant, "generation", 0))
+        external_job_id = str(task_result.get("external_job_id") or "")
+        if (
+            not task_id
+            or repository != self.config.repository
+            or not base_oid
+            or not target_branch
+            or generation < 1
+            or re.fullmatch(r"job-[0-9a-f]{32}", external_job_id) is None
+        ):
+            raise RuntimeError("TASK_ADMISSION_PROJECTION_COORDINATES_INVALID")
+        projection_key = "task-admission:" + task_id
+        description = (
+            "P0 governed execution projection for officially admitted Agent Task."
+        )
+        try:
+            existing = self.bootstrap.get_binding(task_id)
+        except BootstrapError as exc:
+            if str(exc) != "TASK_EXECUTION_PROJECTION_MISSING":
+                raise
+            existing = None
+        if existing is not None:
+            if (
+                existing.repository != repository
+                or existing.base_oid != base_oid
+                or existing.target_branch != target_branch
+                or existing.risk != risk
+                or existing.description != description
+                or existing.idempotency_key != projection_key
+                or existing.generation != generation
+                or existing.job_id != external_job_id
+            ):
+                raise RuntimeError("TASK_ADMISSION_PROJECTION_BINDING_CONFLICT")
+            result = existing.response(idempotent=True)
+        else:
+            if not self.authority.commit_exists(base_oid):
+                raise RuntimeError("TASK_ADMISSION_PROJECTION_BASE_NOT_FOUND")
+            current_branch_oid = self.authority.read_ref(
+                "refs/heads/" + target_branch
+            )
+            if current_branch_oid is None:
+                branch_mode = "CREATE_NEW"
+                expected_branch_oid = base_oid
+            elif current_branch_oid == base_oid:
+                branch_mode = "CONTINUE_EXISTING"
+                expected_branch_oid = current_branch_oid
+            else:
+                raise RuntimeError("TASK_ADMISSION_PROJECTION_BRANCH_CONFLICT")
+            binding = GovernedTaskBinding(
+                task_id=task_id,
+                repository=repository,
+                base_oid=base_oid,
+                target_branch=target_branch,
+                risk=risk,
+                description=description,
+                idempotency_key=projection_key,
+                expected_branch_oid=expected_branch_oid,
+                branch_mode=branch_mode,
+                generation=generation,
+                job_id=external_job_id,
+            )
+            self.bootstrap._write(binding)
+            readback = self.bootstrap.get_binding(task_id)
+            if readback != binding:
+                raise RuntimeError("TASK_ADMISSION_PROJECTION_READBACK_MISMATCH")
+            result = readback.response()
+        self.bindings[task_id] = dict(result)
+        return result
+
     def _job_root(self, task_id: str) -> Path:
         return self.config.state_root / "jobs" / _safe(task_id)
 
@@ -175,6 +407,32 @@ class GovernedRuntime:
         )
         result = self.bootstrap.create(request); self.bindings[result["task_id"]] = result; return result
 
+    def _repository_discovery(self) -> RepositoryDiscovery:
+        if self._repository_discovery_instance is None:
+            self._repository_discovery_instance = RepositoryDiscovery(
+                allowed_repositories=(self.config.repository,),
+                git_dir=self.config.authoritative_git_dir,
+                cursor_secret=(
+                    self.config.repository_discovery_cursor_secret
+                    if self.config.repository_discovery_cursor_secret is not None
+                    else os.environ.get("AIOS_REPOSITORY_DISCOVERY_CURSOR_SECRET")
+                ),
+            )
+        return self._repository_discovery_instance
+
+    def repository_discovery(
+        self, operation: str, request: Mapping[str, Any]
+    ) -> dict[str, Any]:
+        method = {
+            "listRepositoryTree": "list_repository_tree",
+            "searchRepositorySource": "search_repository_source",
+            "getDiffIndex": "get_diff_index",
+            "readRepositoryFile": "read_repository_file",
+        }.get(operation)
+        if method is None:
+            raise ValueError("REPOSITORY_DISCOVERY_OPERATION_INVALID")
+        return getattr(self._repository_discovery(), method)(request)
+
     def acquire_lease(self, request: Mapping[str, Any]) -> dict[str, Any]:
         replay = self._durable_completed_replay_lease(request)
         if replay is not None:
@@ -732,7 +990,11 @@ class GovernedRuntime:
 
     def snapshot(self) -> dict[str, Any]:
         task = self._snapshot_task()
-        return build_control_plane_snapshot(target_version=self.config.target_version, runtime=self.runtime_status(), repository={"identity": self.config.repository, "authority_git_dir": str(self.config.authoritative_git_dir), "authority_main_oid": self.authority.read_ref("refs/heads/main")}, production={"baseline_version": "V2R1C7", "target_oid": "c7adece1cc8beffe7c718d53c775898b45d6c7f8", "deployment_state": "ACTIVE"}, task=task, capabilities={"legacy_writes_enabled": False, "governed_writes_enabled": True, "force_push": False, "main_write": False, "tag_write": False, "baseline_write": False, "production_write": False}, credential_broker={"status": "SERVER_SIDE_ONLY", "provider": "FileCredentialProvider"})
+        runtime = self.runtime_status()
+        production = load_production_observation(
+            self.config.state_root / "production-observation.json"
+        )
+        return build_control_plane_snapshot(target_version=self.config.target_version, runtime=runtime, repository={"identity": self.config.repository, "authority_git_dir": str(self.config.authoritative_git_dir), "authority_main_oid": self.authority.read_ref("refs/heads/main")}, production=production, task=task, capabilities={"legacy_writes_enabled": False, "governed_writes_enabled": runtime["governed_writes_enabled"], "force_push": False, "main_write": False, "tag_write": False, "baseline_write": False, "production_write": False}, credential_broker={"status": "SERVER_SIDE_ONLY", "provider": "FileCredentialProvider"})
 
     def handlers(self) -> dict[str, Any]:
         return {
@@ -745,6 +1007,18 @@ class GovernedRuntime:
             "resumeGitOpsJob": lambda request: self.job(request, "resume"),
             "reconcileGitOpsJob": lambda request: self.job(request, "reconcile"),
             "getControlPlaneSnapshot": lambda request: self.snapshot(),
+            "listRepositoryTree": lambda request: self.repository_discovery(
+                "listRepositoryTree", request
+            ),
+            "searchRepositorySource": lambda request: self.repository_discovery(
+                "searchRepositorySource", request
+            ),
+            "getDiffIndex": lambda request: self.repository_discovery(
+                "getDiffIndex", request
+            ),
+            "readRepositoryFile": lambda request: self.repository_discovery(
+                "readRepositoryFile", request
+            ),
             "createTagApprovalRequest": self.release.approval_request,
             "requestOrCreateTag": self.release.publish_tag,
             "getTagPublicationStatus": self.release.tag_status,
@@ -760,47 +1034,284 @@ def build_governed_handlers(runtime_config: RuntimeConfig | Mapping[str, Any]) -
     return GovernedRuntime(runtime_config).handlers()
 
 
+def build_bridge_adapter(
+    runtime: GovernedRuntime,
+    *,
+    task_admission_handlers: Mapping[str, Callable[[Mapping[str, Any]], Any]] | None = None,
+) -> BridgeV2Adapter:
+    handlers = dict(runtime.handlers())
+    if task_admission_handlers is not None:
+        if (
+            set(task_admission_handlers) != set(TASK_ADMISSION_OPERATIONS)
+            or any(
+                not callable(task_admission_handlers.get(operation))
+                for operation in TASK_ADMISSION_OPERATIONS
+            )
+        ):
+            raise ValueError("TASK_ADMISSION_HANDLERS_INCOMPLETE")
+        handlers.update(task_admission_handlers)
+    return BridgeV2Adapter(runtime_status=runtime.runtime_status, handlers=handlers)
+
+
 class _HTTPError(RuntimeError): pass
 
 
 class BridgeHandler(BaseHTTPRequestHandler):
     adapter: BridgeV2Adapter | None = None
+    principal_verifier: TaskPrincipalVerifier | None = None
+
     def log_message(self, *_args: Any) -> None: return
+
     def _json(self, value: Any, status: int = 200) -> None:
         raw = json.dumps(value, sort_keys=True, separators=(",", ":")).encode(); self.send_response(status); self.send_header("Content-Type", "application/json"); self.send_header("Content-Length", str(len(raw))); self.end_headers(); self.wfile.write(raw)
+
+    @staticmethod
+    def _result_status(value: Any) -> int:
+        status = value.get("http_status") if isinstance(value, Mapping) else None
+        return status if isinstance(status, int) and 100 <= status <= 599 else 200
+
     def _body(self) -> dict[str, Any]:
         try: length = int(self.headers.get("Content-Length", "-1"))
         except ValueError as exc: raise _HTTPError("CONTENT_LENGTH_INVALID") from exc
         if length < 0 or length > MAX_BODY: raise _HTTPError("REQUEST_TOO_LARGE")
-        value = json.loads(self.rfile.read(length).decode("utf-8"))
+        def strict_object(pairs: list[tuple[str, Any]]) -> dict[str, Any]:
+            value: dict[str, Any] = {}
+            for key, item in pairs:
+                if key in value:
+                    raise _HTTPError("JSON_DUPLICATE_FIELD")
+                value[key] = item
+            return value
+        value = json.loads(
+            self.rfile.read(length).decode("utf-8"),
+            object_pairs_hook=strict_object,
+        )
         if not isinstance(value, dict): raise _HTTPError("JSON_OBJECT_REQUIRED")
         return value
+
     def _allowed(self, operation: str, body: Mapping[str, Any]) -> None:
-        allowed = set(OPERATION_REQUIRED_FIELDS[operation]) | {"schema", "lease_seconds", "create_target_branch", "worktree_mode", "cas_ref_update_required", "expected_branch_oid", "generation", "branch_mode", "source_lease_epoch"}
+        if operation in TASK_ADMISSION_OPERATIONS:
+            allowed = set(OPERATION_REQUIRED_FIELDS[operation]) | set(
+                TASK_ADMISSION_OPERATION_OPTIONAL_FIELDS[operation]
+            )
+        elif operation in OPERATION_OPTIONAL_FIELDS:
+            allowed = set(OPERATION_REQUIRED_FIELDS[operation]) | set(
+                OPERATION_OPTIONAL_FIELDS[operation]
+            )
+        else:
+            allowed = set(OPERATION_REQUIRED_FIELDS[operation]) | {"schema", "lease_seconds", "create_target_branch", "worktree_mode", "cas_ref_update_required", "expected_branch_oid", "expected_revision", "generation", "branch_mode", "source_lease_epoch"}
+        if operation == "projectOnlineAgentExecution": allowed.add("execution")
         if operation == "commitFilesGoverned": allowed.add("files")
-        allowed.update({"owner_approval", "execute", "job_id", "historical_lease_head_oid"})
+        if operation not in TASK_ADMISSION_OPERATIONS and operation not in OPERATION_OPTIONAL_FIELDS:
+            allowed.update({"owner_approval", "execute", "job_id", "historical_lease_head_oid"})
+        if "principal" in body or _PRIVATE_PRINCIPAL in body:
+            raise _HTTPError("CALLER_PRINCIPAL_FORBIDDEN")
         if set(body) - allowed: raise _HTTPError("UNKNOWN_FIELDS")
+
+    def _verified_request(self, operation: str, body: Mapping[str, Any]) -> dict[str, Any]:
+        protected = {
+            "createGovernedTask", "projectOnlineAgentExecution",
+            "acquireWriterLease", "commitFileGoverned", "commitFilesGoverned",
+            "getGitOpsJob", "resumeGitOpsJob", "reconcileGitOpsJob",
+        }
+        if operation not in protected:
+            return dict(body)
+        if operation in _TASK_PRINCIPAL_MUTATING_OPERATIONS:
+            adapter = self.adapter
+            if adapter is None:
+                raise _HTTPError("TASK_PRINCIPAL_WRITES_DISABLED")
+            try:
+                runtime = adapter.getRuntimeStatus()
+            except Exception as exc:
+                raise _HTTPError("TASK_PRINCIPAL_WRITES_DISABLED") from exc
+            if (
+                not isinstance(runtime, Mapping)
+                or runtime.get("governed_writes_enabled") is not True
+                or runtime.get("legacy_global_writes_enabled") is not False
+                or runtime.get("task_principal_writes_enabled") is not True
+            ):
+                raise _HTTPError("TASK_PRINCIPAL_WRITES_DISABLED")
+        verifier = type(self).principal_verifier
+        if verifier is None:
+            raise _HTTPError("TASK_PRINCIPAL_VERIFIER_UNAVAILABLE")
+        get_all = getattr(self.headers, "get_all", None)
+        if callable(get_all):
+            authorization_values = get_all("Authorization") or []
+        else:
+            authorization = self.headers.get("Authorization")
+            authorization_values = [] if authorization is None else [authorization]
+        transport = {
+            "operation": operation,
+            "client_address": self.client_address[0] if self.client_address else None,
+            "headers": {
+                "authorization": authorization_values[0] if len(authorization_values) == 1 else None,
+                "x-request-id": self.headers.get("X-Request-Id"),
+            },
+        }
+        principal = verifier(transport, dict(body))
+        if not isinstance(principal, Mapping):
+            raise _HTTPError("TASK_PRINCIPAL_REJECTED")
+        return {**body, _PRIVATE_PRINCIPAL: dict(principal)}
+
+    def _query_body(self, operation: str) -> dict[str, Any]:
+        parsed = urlsplit(self.path)
+        if len(self.path) > 8192:
+            raise _HTTPError("QUERY_TOO_LARGE")
+        try:
+            pairs = parse_qsl(
+                parsed.query,
+                keep_blank_values=True,
+                strict_parsing=False,
+                max_num_fields=64,
+            )
+        except ValueError as exc:
+            raise _HTTPError("QUERY_INVALID") from exc
+        allowed = set(OPERATION_REQUIRED_FIELDS[operation]) | set(
+            OPERATION_OPTIONAL_FIELDS[operation]
+        )
+        result: dict[str, Any] = {}
+        for key, value in pairs:
+            if key not in allowed:
+                raise _HTTPError("UNKNOWN_FIELDS")
+            if key == "path_globs":
+                result.setdefault(key, []).append(value)
+                continue
+            if key in result:
+                raise _HTTPError("DUPLICATE_FIELD")
+            if key in {"depth", "limit", "max_matches", "max_bytes"}:
+                try:
+                    value = int(value, 10)
+                except (TypeError, ValueError) as exc:
+                    raise _HTTPError("INVALID_INTEGER") from exc
+            result[key] = value
+        if set(OPERATION_REQUIRED_FIELDS[operation]) - set(result):
+            raise _HTTPError("MISSING_FIELDS")
+        return result
+
     def do_GET(self) -> None:
         if self.adapter is None: self._json({"error": "RUNTIME_UNAVAILABLE"}, 503); return
-        if self.path == "/v2/runtime": self._json(self.adapter.getRuntimeStatus()); return
-        if self.path == "/v2/capabilities": self._json(self.adapter.getGovernedWriteCapabilities()); return
-        if self.path == "/v2/control-plane-snapshot": self._json(self.adapter.getControlPlaneSnapshot({})); return
+        parsed = urlsplit(self.path)
+        if parsed.path == "/v2/runtime": self._json(self.adapter.getRuntimeStatus()); return
+        if parsed.path == "/v2/capabilities": self._json(self.adapter.getGovernedWriteCapabilities()); return
+        if parsed.path == "/v2/control-plane-snapshot": self._json(self.adapter.getControlPlaneSnapshot({})); return
+        if parsed.path == "/v2/task-admission/status":
+            if not callable(self.adapter.handlers.get("getTaskAdmissionStatus")):
+                self._json({"error": "NOT_FOUND"}, 404)
+                return
+            try:
+                parameters = parse_qsl(parsed.query, keep_blank_values=True)
+                if (
+                    len(parameters) != 1
+                    or parameters[0][0] != "envelope_id"
+                    or not parameters[0][1]
+                ):
+                    raise _HTTPError("TASK_ADMISSION_QUERY_INVALID")
+                result = self.adapter.getTaskAdmissionStatus(
+                    {"envelope_id": parameters[0][1]}
+                )
+                self._json(result, self._result_status(result))
+            except TaskAdmissionError as exc:
+                self._json({"error": str(exc)}, exc.status)
+            except _HTTPError as exc:
+                self._json({"error": str(exc)}, 400)
+            except (ValueError, BridgeV2Error) as exc:
+                self._json({"error": str(exc)}, 400)
+            except Exception as exc:
+                self._json({"error": str(exc) or type(exc).__name__}, 503)
+            return
+        operation = ROUTES.get(parsed.path)
+        if operation in OPERATION_OPTIONAL_FIELDS:
+            try:
+                body = self._query_body(operation)
+                self._allowed(operation, body)
+                result = getattr(self.adapter, operation)(body)
+                self._json(result, self._result_status(result))
+            except _HTTPError as exc:
+                status = 413 if str(exc) == "QUERY_TOO_LARGE" else 400
+                self._json({"error": str(exc)}, status)
+            except RepositoryDiscoveryError as exc:
+                self._json({"error": exc.code}, exc.status_code)
+            except (BridgeV2Error, ValueError) as exc:
+                self._json({"error": str(exc)}, 400)
+            except Exception as exc:
+                self._json({"error": str(exc) or type(exc).__name__}, 503)
+            return
         self._json({"error": "NOT_FOUND"}, 404)
+
     def do_POST(self) -> None:
-        operation = ROUTES.get(self.path)
+        operation = ROUTES.get(urlsplit(self.path).path)
+        if operation in OPERATION_OPTIONAL_FIELDS:
+            self._json({"error": "METHOD_NOT_ALLOWED"}, 405)
+            return
         if operation is None or operation in ("getRuntimeStatus", "getGovernedWriteCapabilities") or self.adapter is None: self._json({"error": "NOT_FOUND"}, 404); return
+        if operation in TASK_ADMISSION_OPERATIONS and not callable(self.adapter.handlers.get(operation)):
+            self._json({"error": "NOT_FOUND"}, 404)
+            return
         try:
-            body = self._body(); self._allowed(operation, body); self._json(getattr(self.adapter, operation)(body))
-        except _HTTPError as exc: self._json({"error": str(exc)}, 413 if str(exc) == "REQUEST_TOO_LARGE" else 400)
+            body = self._body(); self._allowed(operation, body)
+            result = getattr(self.adapter, operation)(self._verified_request(operation, body))
+            self._json(result, self._result_status(result))
+        except _HTTPError as exc:
+            error = str(exc)
+            if error == "REQUEST_TOO_LARGE":
+                status = 413
+            elif error == "TASK_PRINCIPAL_WRITES_DISABLED":
+                status = 423
+            else:
+                status = 401 if error.startswith("TASK_PRINCIPAL_") else 400
+            self._json({"error": error}, status)
+        except TaskAdmissionError as exc: self._json({"error": str(exc)}, exc.status)
         except (BootstrapError, ValueError, BridgeV2Error) as exc: self._json({"error": str(exc)}, 409 if "CONFLICT" in str(exc) else 400)
-        except Exception as exc: self._json({"error": str(exc) or type(exc).__name__}, 409 if any(token in str(exc) for token in ("CONFLICT", "EXPECTATION", "MONOTONIC")) else 503)
+        except Exception as exc:
+            error = str(exc) or type(exc).__name__
+            if error.startswith("TASK_PRINCIPAL_"):
+                status = 403
+            elif any(token in error for token in ("CONFLICT", "EXPECTATION", "MONOTONIC", "REVISION_CAS")):
+                status = 409
+            else:
+                status = 503
+            self._json({"error": error}, status)
 
 
 def serve(adapter: BridgeV2Adapter, host: str = "127.0.0.1", port: int = 18892) -> None:
     BridgeHandler.adapter = adapter; ThreadingHTTPServer((host, port), BridgeHandler).serve_forever()
 
 
-def main() -> None:
+def main(
+    *,
+    task_admission_handlers: Mapping[str, Callable[[Mapping[str, Any]], Any]] | None = None,
+    task_principal_verifier: TaskPrincipalVerifier | None = None,
+) -> None:
+    activation_raw = os.environ.get(
+        "AIOS_TASK_ADMISSION_ACTIVATION_FILE",
+        "/var/lib/aios-gitops/bridge-v2-staging/task-admission-activation.json",
+    ).strip()
+    discovery_secret_file = os.environ.get(
+        "AIOS_REPOSITORY_DISCOVERY_CURSOR_SECRET_FILE", ""
+    ).strip()
+    if discovery_secret_file:
+        secret_path = Path(discovery_secret_file)
+        try:
+            secret_metadata = secret_path.lstat()
+            if (
+                stat.S_ISLNK(secret_metadata.st_mode)
+                or not stat.S_ISREG(secret_metadata.st_mode)
+                or secret_metadata.st_mode & 0o022
+                or secret_metadata.st_size > 4096
+            ):
+                raise RuntimeError("REPOSITORY_DISCOVERY_CURSOR_SECRET_INVALID")
+            discovery_cursor_secret: str | bytes | None = secret_path.read_bytes()
+        except (OSError, RuntimeError) as exc:
+            if str(exc) == "REPOSITORY_DISCOVERY_CURSOR_SECRET_INVALID":
+                raise
+            raise RuntimeError(
+                "REPOSITORY_DISCOVERY_CURSOR_SECRET_UNAVAILABLE"
+            ) from exc
+        if not discovery_cursor_secret:
+            raise RuntimeError("REPOSITORY_DISCOVERY_CURSOR_SECRET_EMPTY")
+    else:
+        discovery_cursor_secret = os.environ.get(
+            "AIOS_REPOSITORY_DISCOVERY_CURSOR_SECRET"
+        )
     state_root = Path("/var/lib/aios-gitops/bridge-v2-staging")
     token_path = Path(os.environ.get("AIOS_GITEA_TOKEN_FILE", "/run/credentials/aios-chatgpt-bridge-v2-staging.service/gitea_token"))
     ssh_key_path = Path(os.environ.get("AIOS_GITEA_SSH_KEY_PATH", "/home/aiman/.ssh/id_ed25519_codex_tmp"))
@@ -820,10 +1331,41 @@ def main() -> None:
             "AIOS_GITOPS_BASELINE_AUTHORITY",
             "/var/lib/aios-gitops-runtime-anchor/baseline/current.json",
         )),
+        repository_discovery_cursor_secret=discovery_cursor_secret,
     )
     runtime = GovernedRuntime(config)
+    # Prefer a server-side TaskPrincipal provider recovered from the same
+    # verified Task-admission runtime.  This removes the caller-side credential
+    # bootstrap loop while keeping every mutation dependent on a currently
+    # claimed Task and a freshly re-verified Owner epoch.  Hosts may still
+    # inject an independently authenticated verifier explicitly.
+    BridgeHandler.principal_verifier = task_principal_verifier
+    if task_admission_handlers is None:
+        admission_runtime = None
+        if os.environ.get("AIOS_TASK_ADMISSION_EPOCH_ROOT", "").strip():
+            from aios_task_admission_live_adapters import (
+                build_task_admission_runtime_from_environment,
+            )
+            admission_runtime = build_task_admission_runtime_from_environment(
+                post_admission=runtime.project_admitted_task,
+            )
+        elif activation_raw and Path(activation_raw).is_file():
+            from aios_task_admission_live_adapters import (
+                build_task_admission_runtime_from_activation_file,
+            )
+            admission_runtime = build_task_admission_runtime_from_activation_file(
+                Path(activation_raw),
+                post_admission=runtime.project_admitted_task,
+            )
+        if admission_runtime is not None:
+            task_admission_handlers = admission_runtime.handlers
+            if BridgeHandler.principal_verifier is None:
+                BridgeHandler.principal_verifier = admission_runtime.principal_verifier
     serve(
-        BridgeV2Adapter(runtime_status=runtime.runtime_status(), handlers=runtime.handlers()),
+        build_bridge_adapter(
+            runtime,
+            task_admission_handlers=task_admission_handlers,
+        ),
         port=int(os.environ.get("AIOS_BRIDGE_V2_PORT", "18892")),
     )
 

active-runtime/app/aios_gitea_machine_transport.py

@@ -24,6 +24,25 @@ def _safe_oid(value: str, field: str) -> str:
     return value
 
 
+def _safe_branch(value: str) -> str:
+    branch = str(value or "")
+    if (
+        not branch
+        or len(branch) > 240
+        or branch != branch.strip()
+        or branch.startswith(("/", "-", "."))
+        or branch.endswith(("/", ".", ".lock"))
+        or ".." in branch
+        or "//" in branch
+        or "@{" in branch
+        or "\\" in branch
+        or any(part in {"", ".", ".."} for part in branch.split("/"))
+        or any(ch not in "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789._/-" for ch in branch)
+    ):
+        raise GiteaTransportError("BRANCH_INVALID")
+    return branch
+
+
 @dataclass(slots=True)
 class GiteaMachineTransport:
     api_base: str
@@ -91,6 +110,7 @@ class GiteaMachineTransport:
         return self.repository_info()
 
     def read_branch(self, branch: str) -> str | None:
+        branch = _safe_branch(branch)
         owner, name = self.repository_id.split("/", 1)
         try:
             value = self._request("GET", f"/repos/{quote(owner)}/{quote(name)}/branches/{quote(branch, safe='/')}")[1]
@@ -136,6 +156,99 @@ class GiteaMachineTransport:
         finally:
             askpass.unlink(missing_ok=True)
 
+    def fetch_branch_exact(self, branch: str, expected_oid: str) -> str:
+        """Fetch one exact remote branch tip into a quarantine ref.
+
+        This never updates ``main`` or any caller-visible branch.  The remote
+        ref is read before and after the fetch so a concurrent branch move
+        cannot be silently admitted.
+        """
+
+        branch = _safe_branch(branch)
+        expected_oid = _safe_oid(expected_oid, "expected_oid")
+        remote_before = self.read_branch(branch)
+        if remote_before != expected_oid:
+            raise GiteaTransportError("GITEA_SOURCE_REF_MISMATCH")
+        target_ref = f"refs/aios/release-sources/{expected_oid}"
+
+        current = subprocess.run(
+            [
+                "git",
+                f"--git-dir={self.authority_git_dir}",
+                "rev-parse",
+                "--verify",
+                f"{target_ref}^{{commit}}",
+            ],
+            text=True,
+            capture_output=True,
+            check=False,
+            timeout=self.timeout,
+        )
+        if current.returncode == 0 and current.stdout.strip().lower() == expected_oid:
+            remote_after = self.read_branch(branch)
+            if remote_after != expected_oid:
+                raise GiteaTransportError("GITEA_SOURCE_REF_MOVED")
+            return expected_oid
+
+        askpass, additions = self._askpass()
+        environment = os.environ.copy()
+        environment.update(additions)
+        try:
+            result = subprocess.run(
+                [
+                    "git",
+                    f"--git-dir={self.authority_git_dir}",
+                    "fetch",
+                    "--no-tags",
+                    "--no-write-fetch-head",
+                    self.remote_url,
+                    f"refs/heads/{branch}:{target_ref}",
+                ],
+                text=True,
+                capture_output=True,
+                check=False,
+                env=environment,
+                timeout=self.timeout,
+            )
+            if result.returncode != 0:
+                raise GiteaTransportError("GITEA_SOURCE_FETCH_FAILED")
+        finally:
+            askpass.unlink(missing_ok=True)
+
+        local = subprocess.run(
+            [
+                "git",
+                f"--git-dir={self.authority_git_dir}",
+                "rev-parse",
+                "--verify",
+                f"{target_ref}^{{commit}}",
+            ],
+            text=True,
+            capture_output=True,
+            check=False,
+            timeout=self.timeout,
+        )
+        local_oid = local.stdout.strip().lower()
+        if local.returncode != 0 or local_oid != expected_oid:
+            subprocess.run(
+                [
+                    "git",
+                    f"--git-dir={self.authority_git_dir}",
+                    "update-ref",
+                    "-d",
+                    target_ref,
+                ],
+                text=True,
+                capture_output=True,
+                check=False,
+                timeout=self.timeout,
+            )
+            raise GiteaTransportError("GITEA_SOURCE_FETCH_MISMATCH")
+        remote_after = self.read_branch(branch)
+        if remote_after != expected_oid:
+            raise GiteaTransportError("GITEA_SOURCE_REF_MOVED")
+        return expected_oid
+
     def compare_and_swap_branch(self, branch: str, expected_oid: str, new_oid: str) -> str:
         _safe_oid(expected_oid, "expected_oid")
         _safe_oid(new_oid, "new_oid")

active-runtime/app/aios_gitops_job_controller.py

@@ -9,13 +9,14 @@ from __future__ import annotations
 
 from dataclasses import dataclass
 from enum import Enum
+import base64
 import hashlib
 import json
 import os
 from pathlib import Path
 import sqlite3
 import tempfile
-from datetime import datetime, timezone
+from datetime import datetime, timedelta, timezone
 from typing import Any, Callable, Mapping
 
 
@@ -61,18 +62,52 @@ _ORDER = {
     JobState.COMPLETED: 8,
 }
 _RECOVERABLE = {JobState.RECOVERABLE_FAILURE, JobState.RECONCILIATION_REQUIRED}
+_RECONCILABLE = _RECOVERABLE | {
+    JobState.RECONCILING,
+    JobState.EXECUTING,
+    JobState.LOCAL_VERIFIED,
+    JobState.REMOTE_SYNCING,
+    JobState.REMOTE_VERIFIED,
+}
 _TERMINAL = {
     JobState.COMPLETED,
     JobState.FAILED,
     JobState.CANCELLED,
     JobState.MANUAL_OWNER_REVIEW_REQUIRED,
 }
+_GENERIC_TRANSITIONS = {
+    JobState.REQUESTED: {JobState.AUTHORIZED, JobState.CANCELLED},
+    JobState.AUTHORIZED: {JobState.LEASED, JobState.CANCELLED},
+    JobState.LEASED: {JobState.WORKTREE_READY, JobState.EXECUTING, JobState.CANCELLED},
+    JobState.WORKTREE_READY: {JobState.EXECUTING, JobState.CANCELLED},
+    JobState.EXECUTING: {JobState.LOCAL_VERIFIED},
+    JobState.LOCAL_VERIFIED: {JobState.COMPLETED},
+}
 
 
 def utc_now() -> str:
     return datetime.now(timezone.utc).isoformat().replace("+00:00", "Z")
 
 
+def _utc_datetime(value: str | datetime) -> datetime:
+    if isinstance(value, datetime):
+        parsed = value
+    elif isinstance(value, str):
+        try:
+            parsed = datetime.fromisoformat(value.replace("Z", "+00:00"))
+        except ValueError as exc:
+            raise JobError("TIMESTAMP_INVALID") from exc
+    else:
+        raise JobError("TIMESTAMP_INVALID")
+    if parsed.tzinfo is None:
+        raise JobError("TIMESTAMP_TIMEZONE_REQUIRED")
+    return parsed.astimezone(timezone.utc)
+
+
+def _iso_utc(value: datetime) -> str:
+    return value.astimezone(timezone.utc).isoformat().replace("+00:00", "Z")
+
+
 def canonical_json(value: Any) -> bytes:
     return (
         json.dumps(value, sort_keys=True, separators=(",", ":"), ensure_ascii=False) + "\n"
@@ -273,6 +308,27 @@ class JobStore:
                       kind TEXT NOT NULL, digest TEXT NOT NULL, payload_json TEXT NOT NULL,
                       created_at TEXT NOT NULL, FOREIGN KEY(job_id) REFERENCES jobs(job_id)
                     );
+                    CREATE TABLE IF NOT EXISTS resource_leases (
+                      lease_id TEXT PRIMARY KEY, job_id TEXT NOT NULL UNIQUE,
+                      resource_kind TEXT NOT NULL, resource_id TEXT NOT NULL,
+                      generation INTEGER NOT NULL, lease_expires_at TEXT NOT NULL,
+                      state TEXT NOT NULL, revision INTEGER NOT NULL,
+                      FOREIGN KEY(job_id) REFERENCES jobs(job_id)
+                    );
+                    CREATE TABLE IF NOT EXISTS resource_fences (
+                      resource_kind TEXT NOT NULL, resource_id TEXT NOT NULL,
+                      generation INTEGER NOT NULL, job_id TEXT NOT NULL,
+                      updated_at TEXT NOT NULL,
+                      PRIMARY KEY(resource_kind,resource_id),
+                      FOREIGN KEY(job_id) REFERENCES jobs(job_id)
+                    );
+                    CREATE TABLE IF NOT EXISTS reconciliation_claims (
+                      job_id TEXT PRIMARY KEY, claim_id TEXT NOT NULL UNIQUE,
+                      reconcile_epoch INTEGER NOT NULL, base_revision INTEGER NOT NULL,
+                      lease_expires_at TEXT NOT NULL, state TEXT NOT NULL,
+                      revision INTEGER NOT NULL, updated_at TEXT NOT NULL,
+                      FOREIGN KEY(job_id) REFERENCES jobs(job_id)
+                    );
                     CREATE TABLE IF NOT EXISTS completed_replay_reconciliations (
                       reconciliation_id TEXT PRIMARY KEY, job_id TEXT NOT NULL,
                       identity_digest TEXT NOT NULL UNIQUE,
@@ -579,11 +635,62 @@ class JobStore:
 
 
 class GitOpsJobController:
-    def __init__(self, store: JobStore) -> None:
+    def __init__(
+        self,
+        store: JobStore,
+        *,
+        clock: Callable[[], datetime] | None = None,
+        max_lease_seconds: int = 300,
+        reconcile_lease_seconds: int = 30,
+        generic_receipt_verifier: Callable[[Mapping[str, Any]], bool] | None = None,
+    ) -> None:
+        if max_lease_seconds < 1 or reconcile_lease_seconds < 1:
+            raise JobError("LEASE_CONFIGURATION_INVALID")
         self.store = store
+        self._clock = clock or (lambda: datetime.now(timezone.utc))
+        self.max_lease_seconds = max_lease_seconds
+        self.reconcile_lease_seconds = reconcile_lease_seconds
+        self.generic_receipt_verifier = generic_receipt_verifier
+
+    def _now(self) -> datetime:
+        return _utc_datetime(self._clock())
+
+    def _validated_deadline(self, value: str) -> str:
+        deadline = _utc_datetime(value)
+        now = self._now()
+        if deadline <= now:
+            raise JobError("LEASE_EXPIRED")
+        if deadline > now + timedelta(seconds=self.max_lease_seconds):
+            raise JobError("LEASE_DURATION_EXCEEDED")
+        return _iso_utc(deadline)
 
     @staticmethod
     def _binding(request: Mapping[str, Any]) -> dict[str, str]:
+        if request.get("schema") == "aios.operation-job.v1":
+            fields = (
+                "schema", "tenant_id", "subject_id", "mission_id", "grant_id",
+                "task_id", "effect_id", "operation", "operation_version",
+                "resource_kind", "resource_id", "input_digest",
+            )
+            if any(not isinstance(request.get(field), str) or not request[field].strip() for field in fields):
+                raise JobError("OPERATION_JOB_BINDING_INVALID")
+            digest = str(request["input_digest"])
+            if len(digest) != 64 or any(ch not in "0123456789abcdef" for ch in digest):
+                raise JobError("INPUT_DIGEST_INVALID")
+            binding = {field: str(request[field]).strip() for field in fields}
+            expected = request.get("expected_resource_revision")
+            if expected is not None:
+                if isinstance(expected, bool) or not isinstance(expected, (str, int)) or not str(expected).strip():
+                    raise JobError("EXPECTED_RESOURCE_REVISION_INVALID")
+                binding["expected_resource_revision"] = str(expected).strip()
+            idempotency_key = request.get("idempotency_key")
+            if idempotency_key is not None:
+                if not isinstance(idempotency_key, str) or not idempotency_key.strip():
+                    raise JobError("IDEMPOTENCY_KEY_INVALID")
+                binding["idempotency_key"] = idempotency_key.strip()
+            if any(len(value) > 512 for value in binding.values()):
+                raise JobError("OPERATION_JOB_BINDING_INVALID")
+            return binding
         fields = ("campaign_id", "repository", "operation", "branch", "expected_branch_oid", "payload_digest")
         if any(not isinstance(request.get(field), str) or not request[field].strip() for field in fields):
             raise JobError("JOB_BINDING_INVALID")
@@ -634,20 +741,29 @@ class GitOpsJobController:
 
     def submit(self, request: Mapping[str, Any], *, payload: bytes | None = None) -> JobReceipt:
         binding = self._binding(request)
+        bound_digest = binding.get("payload_digest", binding.get("input_digest"))
+        assert bound_digest is not None
         payload_ref = request.get("payload_ref")
         payload_size = request.get("payload_size")
         if payload is not None:
-            payload_ref, payload_size = self.store.payloads.put(payload, binding["payload_digest"])
-        if payload_ref is not None and payload_ref != f"sha256/{binding['payload_digest']}":
+            payload_ref, payload_size = self.store.payloads.put(payload, bound_digest)
+        if payload_ref is not None and payload_ref != f"sha256/{bound_digest}":
             raise JobError("PAYLOAD_REFERENCE_MISMATCH")
         if payload_ref is not None and (not isinstance(payload_size, int) or payload_size < 0):
             raise JobError("PAYLOAD_SIZE_INVALID")
         client_idempotency_key = binding.get("idempotency_key")
-        if client_idempotency_key is not None:
-            if len(client_idempotency_key) > 128 or not all(
-                character.isalnum() or character in "._:-" for character in client_idempotency_key
-            ):
-                raise JobError("IDEMPOTENCY_KEY_INVALID")
+        if client_idempotency_key is not None and (
+            len(client_idempotency_key) > 128
+            or not all(character.isalnum() or character in "._:-" for character in client_idempotency_key)
+        ):
+            raise JobError("IDEMPOTENCY_KEY_INVALID")
+        if binding.get("schema") == "aios.operation-job.v1":
+            key = sha256_json({
+                "schema": binding["schema"],
+                "tenant_id": binding["tenant_id"],
+                "effect_id": binding["effect_id"],
+            })
+        elif client_idempotency_key is not None:
             key = sha256_json({"client_idempotency_key": client_idempotency_key})
         else:
             key = sha256_json(binding)
@@ -666,9 +782,15 @@ class GitOpsJobController:
                     row = dict(existing)
                     connection.commit()
                     return self.store._receipt(row, duplicate=True)
+                generic = binding.get("schema") == "aios.operation-job.v1"
+                storage_campaign = binding["mission_id"] if generic else binding["campaign_id"]
+                storage_repository = "__operation_job__" if generic else binding["repository"]
+                storage_branch = "__operation_job__" if generic else binding["branch"]
+                storage_oid = "0" * 40 if generic else binding["expected_branch_oid"]
+                storage_digest = binding["input_digest"] if generic else binding["payload_digest"]
                 connection.execute(
                     "INSERT INTO jobs(job_id,idempotency_key,campaign_id,repository,operation,branch,expected_branch_oid,payload_digest,payload_ref,payload_size,state,side_effect_state,revision,request_json,receipt_json,created_at,updated_at) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
-                    (job_id, key, binding["campaign_id"], binding["repository"], binding["operation"], binding["branch"], binding["expected_branch_oid"], binding["payload_digest"], payload_ref, payload_size, JobState.REQUESTED.value, "NONE", 0, json.dumps({"binding": binding, **durable_request}, sort_keys=True), None, now, now),
+                    (job_id, key, storage_campaign, storage_repository, binding["operation"], storage_branch, storage_oid, storage_digest, payload_ref, payload_size, JobState.REQUESTED.value, "NONE", 0, json.dumps({"binding": binding, **durable_request}, sort_keys=True), None, now, now),
                 )
                 connection.execute("INSERT INTO idempotency_keys(key,job_id,binding_json,created_at) VALUES(?,?,?,?)", (key, job_id, json.dumps(binding, sort_keys=True), now))
                 connection.execute("INSERT INTO state_transitions(job_id,from_state,to_state,revision,side_effect_state,created_at) VALUES(?,?,?,?,?,?)", (job_id, None, JobState.REQUESTED.value, 0, "NONE", now))
@@ -697,8 +819,12 @@ class GitOpsJobController:
         expected_revision: int,
     ) -> JobReceipt:
         """Atomically create a branch lease and move its Job to LEASED."""
-        if generation < 1 or any(len(oid) != 40 for oid in (lineage_anchor_oid, current_head_oid)):
+        if isinstance(generation, bool) or generation < 1 or any(
+            len(oid) != 40 or any(ch not in "0123456789abcdef" for ch in oid)
+            for oid in (lineage_anchor_oid, current_head_oid)
+        ):
             raise JobError("LEASE_BINDING_INVALID")
+        deadline = self._validated_deadline(lease_expires_at)
         try:
             with self.store._connect() as connection:
                 connection.execute("BEGIN IMMEDIATE")
@@ -707,10 +833,23 @@ class GitOpsJobController:
                     raise JobError("JOB_NOT_FOUND")
                 if int(row["revision"]) != expected_revision:
                     raise JobError("REVISION_CAS_CONFLICT")
+                if JobState(row["state"]) != JobState.AUTHORIZED:
+                    raise JobError("LEASE_JOB_STATE_INVALID")
                 if row["branch"] in {"main", "master"}:
                     raise JobError("PROTECTED_BRANCH_REJECTED")
                 now = utc_now()
-                connection.execute("INSERT INTO branch_leases(lease_id,job_id,branch,lineage_anchor_oid,current_head_oid,generation,lease_expires_at,state,revision) VALUES(?,?,?,?,?,?,?,?,?)", (lease_id, job_id, row["branch"], lineage_anchor_oid, current_head_oid, generation, lease_expires_at, "ACTIVE", 0))
+                existing_lease = connection.execute(
+                    "SELECT * FROM branch_leases WHERE job_id=?", (job_id,)
+                ).fetchone()
+                if existing_lease is None:
+                    connection.execute("INSERT INTO branch_leases(lease_id,job_id,branch,lineage_anchor_oid,current_head_oid,generation,lease_expires_at,state,revision) VALUES(?,?,?,?,?,?,?,?,?)", (lease_id, job_id, row["branch"], lineage_anchor_oid, current_head_oid, generation, deadline, "ACTIVE", 0))
+                elif existing_lease["state"] == "ACTIVE" and _utc_datetime(existing_lease["lease_expires_at"]) > self._now():
+                    raise JobError("LEASE_CONFLICT")
+                else:
+                    connection.execute(
+                        "UPDATE branch_leases SET lease_id=?,lineage_anchor_oid=?,current_head_oid=?,generation=?,lease_expires_at=?,state='ACTIVE',revision=revision+1 WHERE job_id=?",
+                        (lease_id, lineage_anchor_oid, current_head_oid, generation, deadline, job_id),
+                    )
                 next_revision = expected_revision + 1
                 updated = connection.execute("UPDATE jobs SET state=?,side_effect_state=?,revision=?,updated_at=? WHERE job_id=? AND revision=?", (JobState.LEASED.value, "LEASED", next_revision, now, job_id, expected_revision))
                 if updated.rowcount != 1:
@@ -734,6 +873,13 @@ class GitOpsJobController:
         try:
             with self.store._connect() as connection:
                 connection.execute("BEGIN IMMEDIATE")
+                lease = connection.execute("SELECT * FROM branch_leases WHERE lease_id=?", (lease_id,)).fetchone()
+                if lease is None:
+                    raise JobError("LEASE_NOT_FOUND")
+                if lease["state"] != "ACTIVE" or _utc_datetime(lease["lease_expires_at"]) <= self._now():
+                    raise JobError("LEASE_EXPIRED")
+                if int(lease["generation"]) != generation:
+                    raise JobError("LEASE_FENCE_REJECTED")
                 updated = connection.execute("UPDATE branch_leases SET current_head_oid=?,generation=?,state=?,revision=revision+1 WHERE lease_id=? AND revision=?", (current_head_oid, generation, state, lease_id, expected_revision))
                 if updated.rowcount != 1:
                     raise JobError("LEASE_REVISION_CAS_CONFLICT")
@@ -743,6 +889,182 @@ class GitOpsJobController:
         except sqlite3.Error as exc:
             raise ServiceUnavailable("JOB_DB_UNAVAILABLE") from exc
 
+    def lease_resource_job(
+        self,
+        job_id: str,
+        *,
+        lease_id: str,
+        resource_kind: str,
+        resource_id: str,
+        generation: int | None = None,
+        lease_expires_at: str,
+        expected_revision: int,
+    ) -> JobReceipt:
+        """Lease a scoped non-Git resource without pretending it is a branch."""
+        if not lease_id or not resource_kind or not resource_id or isinstance(generation, bool):
+            raise JobError("LEASE_BINDING_INVALID")
+        deadline = self._validated_deadline(lease_expires_at)
+        try:
+            with self.store._connect() as connection:
+                connection.execute("BEGIN IMMEDIATE")
+                row = connection.execute("SELECT * FROM jobs WHERE job_id=?", (job_id,)).fetchone()
+                if row is None:
+                    raise JobError("JOB_NOT_FOUND")
+                request = json.loads(row["request_json"])
+                binding = request.get("binding", request)
+                if binding.get("schema") != "aios.operation-job.v1":
+                    raise JobError("RESOURCE_LEASE_PROFILE_REQUIRED")
+                if binding.get("resource_kind") != resource_kind or binding.get("resource_id") != resource_id:
+                    raise JobError("RESOURCE_LEASE_BINDING_MISMATCH")
+                if int(row["revision"]) != expected_revision:
+                    raise JobError("REVISION_CAS_CONFLICT")
+                if JobState(row["state"]) != JobState.AUTHORIZED:
+                    raise JobError("LEASE_JOB_STATE_INVALID")
+                active = connection.execute(
+                    "SELECT 1 FROM resource_leases WHERE resource_kind=? AND resource_id=? AND state='ACTIVE' AND lease_expires_at>?",
+                    (resource_kind, resource_id, _iso_utc(self._now())),
+                ).fetchone()
+                if active is not None:
+                    raise JobError("RESOURCE_LEASE_ACTIVE")
+                fence = connection.execute(
+                    "SELECT generation FROM resource_fences WHERE resource_kind=? AND resource_id=?",
+                    (resource_kind, resource_id),
+                ).fetchone()
+                prior_generation = 0 if fence is None else int(fence["generation"])
+                assigned_generation = prior_generation + 1 if generation is None else generation
+                if assigned_generation <= prior_generation:
+                    raise JobError("LEASE_FENCE_REJECTED")
+                old_job_lease = connection.execute(
+                    "SELECT * FROM resource_leases WHERE job_id=?", (job_id,)
+                ).fetchone()
+                if old_job_lease is None:
+                    connection.execute(
+                        "INSERT INTO resource_leases(lease_id,job_id,resource_kind,resource_id,generation,lease_expires_at,state,revision) VALUES(?,?,?,?,?,?,?,0)",
+                        (lease_id, job_id, resource_kind, resource_id, assigned_generation, deadline, "ACTIVE"),
+                    )
+                else:
+                    connection.execute(
+                        "UPDATE resource_leases SET lease_id=?,resource_kind=?,resource_id=?,generation=?,lease_expires_at=?,state='ACTIVE',revision=revision+1 WHERE job_id=?",
+                        (lease_id, resource_kind, resource_id, assigned_generation, deadline, job_id),
+                    )
+                connection.execute(
+                    "INSERT INTO resource_fences(resource_kind,resource_id,generation,job_id,updated_at) VALUES(?,?,?,?,?) ON CONFLICT(resource_kind,resource_id) DO UPDATE SET generation=excluded.generation,job_id=excluded.job_id,updated_at=excluded.updated_at",
+                    (resource_kind, resource_id, assigned_generation, job_id, utc_now()),
+                )
+                next_revision = expected_revision + 1
+                now = utc_now()
+                updated = connection.execute(
+                    "UPDATE jobs SET state=?,side_effect_state=?,revision=?,updated_at=? WHERE job_id=? AND revision=?",
+                    (JobState.LEASED.value, "LEASED", next_revision, now, job_id, expected_revision),
+                )
+                if updated.rowcount != 1:
+                    raise JobError("REVISION_CAS_CONFLICT")
+                connection.execute(
+                    "INSERT INTO state_transitions(job_id,from_state,to_state,revision,side_effect_state,created_at) VALUES(?,?,?,?,?,?)",
+                    (job_id, row["state"], JobState.LEASED.value, next_revision, "LEASED", now),
+                )
+                result = dict(connection.execute("SELECT * FROM jobs WHERE job_id=?", (job_id,)).fetchone())
+                connection.commit()
+        except sqlite3.IntegrityError as exc:
+            raise JobError("LEASE_CONFLICT") from exc
+        except JobError:
+            raise
+        except sqlite3.Error as exc:
+            raise ServiceUnavailable("JOB_DB_UNAVAILABLE") from exc
+        result["request"] = json.loads(result["request_json"])
+        self.store._mirror(result)
+        return self.store._receipt(result, duplicate=True)
+
+    def assert_execution_lease(
+        self, job_id: str, *, generation: int, lease_id: str | None = None
+    ) -> Mapping[str, Any]:
+        """Fence a receiver-side effect by the active lease and generation."""
+        try:
+            with self.store._connect() as connection:
+                job = connection.execute("SELECT request_json,state FROM jobs WHERE job_id=?", (job_id,)).fetchone()
+                if job is None:
+                    raise JobError("JOB_NOT_FOUND")
+                if JobState(job["state"]) not in {
+                    JobState.LEASED, JobState.WORKTREE_READY, JobState.EXECUTING,
+                    JobState.LOCAL_VERIFIED, JobState.REMOTE_SYNCING,
+                }:
+                    raise JobError("LEASE_JOB_STATE_INVALID")
+                binding = json.loads(job["request_json"]).get("binding", {})
+                table = "resource_leases" if binding.get("schema") == "aios.operation-job.v1" else "branch_leases"
+                lease = connection.execute(f"SELECT * FROM {table} WHERE job_id=?", (job_id,)).fetchone()
+                if lease is None:
+                    raise JobError("LEASE_NOT_FOUND")
+                if (
+                    lease["state"] != "ACTIVE"
+                    or _utc_datetime(lease["lease_expires_at"]) <= self._now()
+                    or int(lease["generation"]) != generation
+                    or (lease_id is not None and lease["lease_id"] != lease_id)
+                ):
+                    raise JobError("LEASE_FENCE_REJECTED")
+                if table == "resource_leases":
+                    fence = connection.execute(
+                        "SELECT generation,job_id FROM resource_fences WHERE resource_kind=? AND resource_id=?",
+                        (lease["resource_kind"], lease["resource_id"]),
+                    ).fetchone()
+                    if (
+                        fence is None
+                        or int(fence["generation"]) != int(lease["generation"])
+                        or fence["job_id"] != job_id
+                    ):
+                        raise JobError("LEASE_FENCE_REJECTED")
+                return dict(lease)
+        except JobError:
+            raise
+        except sqlite3.Error as exc:
+            raise ServiceUnavailable("JOB_DB_UNAVAILABLE") from exc
+
+    def get_execution_lease(self, job_id: str) -> Mapping[str, Any]:
+        """Return the current typed lease so callers can pass its fence token."""
+        try:
+            with self.store._connect() as connection:
+                request_row = connection.execute(
+                    "SELECT request_json FROM jobs WHERE job_id=?", (job_id,)
+                ).fetchone()
+                if request_row is None:
+                    raise JobError("JOB_NOT_FOUND")
+                binding = json.loads(request_row["request_json"]).get("binding", {})
+                table = "resource_leases" if binding.get("schema") == "aios.operation-job.v1" else "branch_leases"
+                lease = connection.execute(f"SELECT * FROM {table} WHERE job_id=?", (job_id,)).fetchone()
+                if lease is None:
+                    raise JobError("LEASE_NOT_FOUND")
+                return dict(lease)
+        except JobError:
+            raise
+        except sqlite3.Error as exc:
+            raise ServiceUnavailable("JOB_DB_UNAVAILABLE") from exc
+
+    def assert_effect_admission(self, *, exclude_job_id: str | None = None) -> None:
+        """Stop new effects while an earlier durable intent needs reconciliation."""
+        in_flight = (
+            JobState.EXECUTING, JobState.LOCAL_VERIFIED,
+            JobState.REMOTE_SYNCING, JobState.REMOTE_VERIFIED,
+            JobState.RECONCILING,
+        )
+        placeholders = ",".join("?" for _ in in_flight)
+        values: list[Any] = [state.value for state in in_flight]
+        query = (
+            f"SELECT job_id FROM jobs WHERE (state IN ({placeholders}) "
+            "OR (state=? AND side_effect_state='UNKNOWN'))"
+        )
+        values.append(JobState.RECONCILIATION_REQUIRED.value)
+        if exclude_job_id is not None:
+            query += " AND job_id<>?"
+            values.append(exclude_job_id)
+        query += " LIMIT 1"
+        try:
+            with self.store._connect() as connection:
+                if connection.execute(query, values).fetchone() is not None:
+                    raise JobError("EFFECT_ADMISSION_LATCHED")
+        except JobError:
+            raise
+        except sqlite3.Error as exc:
+            raise ServiceUnavailable("JOB_DB_UNAVAILABLE") from exc
+
     def advance(self, job_id: str, state: JobState, *, side_effect_state: str, receipt: Mapping[str, Any] | None = None, expected_revision: int | None = None) -> JobReceipt:
         return self._advance(
             job_id,
@@ -752,6 +1074,75 @@ class GitOpsJobController:
             expected_revision=expected_revision,
         )
 
+    def _validate_generic_receipt(
+        self,
+        connection: sqlite3.Connection,
+        row: Mapping[str, Any],
+        receipt: Mapping[str, Any] | None,
+        *,
+        recovery: bool,
+    ) -> None:
+        if self.generic_receipt_verifier is None:
+            raise JobError("GENERIC_RECEIPT_VERIFIER_REQUIRED")
+        if not isinstance(receipt, Mapping) or set(receipt) != {"schema", "key_id", "payload", "signature"}:
+            raise JobError("GENERIC_RECEIPT_INVALID")
+        if receipt.get("schema") != "aios.operation-receipt.v1":
+            raise JobError("GENERIC_RECEIPT_INVALID")
+        if not isinstance(receipt.get("key_id"), str) or not receipt["key_id"].strip():
+            raise JobError("GENERIC_RECEIPT_INVALID")
+        signature = receipt.get("signature")
+        try:
+            decoded_signature = base64.b64decode(signature, validate=True) if isinstance(signature, str) else b""
+        except (ValueError, TypeError):
+            decoded_signature = b""
+        if len(decoded_signature) != 64:
+            raise JobError("GENERIC_RECEIPT_INVALID")
+        payload = receipt.get("payload")
+        if not isinstance(payload, Mapping) or not isinstance(payload.get("observation"), Mapping):
+            raise JobError("GENERIC_RECEIPT_INVALID")
+        request = json.loads(row["request_json"])
+        binding = request.get("binding", request)
+        required_bindings = (
+            "tenant_id", "subject_id", "mission_id", "grant_id", "task_id",
+            "effect_id", "operation", "operation_version", "resource_kind",
+            "resource_id", "input_digest",
+        )
+        if any(payload.get(field) != binding.get(field) for field in required_bindings):
+            raise JobError("GENERIC_RECEIPT_BINDING_MISMATCH")
+        if payload.get("job_id") != row["job_id"]:
+            raise JobError("GENERIC_RECEIPT_BINDING_MISMATCH")
+        if "expected_resource_revision" in binding and payload.get("expected_resource_revision") != binding["expected_resource_revision"]:
+            raise JobError("GENERIC_RECEIPT_BINDING_MISMATCH")
+        lease = connection.execute(
+            "SELECT * FROM resource_leases WHERE job_id=?", (row["job_id"],)
+        ).fetchone()
+        if (
+            lease is None
+            or payload.get("claim_id") != lease["lease_id"]
+            or isinstance(payload.get("generation"), bool)
+            or payload.get("generation") != int(lease["generation"])
+        ):
+            raise JobError("GENERIC_RECEIPT_LEASE_MISMATCH")
+        if not recovery:
+            fence = connection.execute(
+                "SELECT generation,job_id FROM resource_fences WHERE resource_kind=? AND resource_id=?",
+                (lease["resource_kind"], lease["resource_id"]),
+            ).fetchone()
+            if (
+                lease["state"] != "ACTIVE"
+                or _utc_datetime(lease["lease_expires_at"]) <= self._now()
+                or fence is None
+                or int(fence["generation"]) != int(lease["generation"])
+                or fence["job_id"] != row["job_id"]
+            ):
+                raise JobError("GENERIC_RECEIPT_LEASE_MISMATCH")
+        try:
+            verified = self.generic_receipt_verifier(receipt)
+        except Exception as exc:
+            raise JobError("GENERIC_RECEIPT_SIGNATURE_INVALID") from exc
+        if verified is not True:
+            raise JobError("GENERIC_RECEIPT_SIGNATURE_INVALID")
+
     def _advance(
         self,
         job_id: str,
@@ -779,7 +1170,17 @@ class GitOpsJobController:
                 )
                 if previous in _TERMINAL and state != previous and not recovery_transition:
                     raise JobError("JOB_TERMINAL")
-                if state not in _RECOVERABLE | {JobState.RECONCILING, JobState.MANUAL_OWNER_REVIEW_REQUIRED}:
+                durable_request = json.loads(row["request_json"])
+                generic = durable_request.get("binding", durable_request).get("schema") == "aios.operation-job.v1"
+                if generic:
+                    allowed = _GENERIC_TRANSITIONS.get(previous, set()) | _RECOVERABLE | {
+                        JobState.RECONCILIATION_REQUIRED, JobState.MANUAL_OWNER_REVIEW_REQUIRED,
+                    }
+                    if state not in allowed:
+                        raise JobError("GENERIC_JOB_TRANSITION_INVALID")
+                    if state in {JobState.LOCAL_VERIFIED, JobState.COMPLETED}:
+                        self._validate_generic_receipt(connection, row, receipt, recovery=False)
+                if not generic and state not in _RECOVERABLE | {JobState.RECONCILING, JobState.MANUAL_OWNER_REVIEW_REQUIRED}:
                     if previous in _RECOVERABLE:
                         raise JobError("RECONCILE_REQUIRED")
                     if previous != JobState.RECONCILING and _ORDER.get(state, -1) < _ORDER.get(previous, -1):
@@ -790,6 +1191,9 @@ class GitOpsJobController:
                 updated = connection.execute("UPDATE jobs SET state=?,side_effect_state=?,revision=?,receipt_json=?,updated_at=? WHERE job_id=? AND revision=?", (state.value, side_effect_state, next_revision, receipt_json, now, job_id, revision))
                 if updated.rowcount != 1:
                     raise JobError("REVISION_CAS_CONFLICT")
+                if state in _TERMINAL:
+                    connection.execute("UPDATE branch_leases SET state='USED' WHERE job_id=? AND state='ACTIVE'", (job_id,))
+                    connection.execute("UPDATE resource_leases SET state='USED' WHERE job_id=? AND state='ACTIVE'", (job_id,))
                 connection.execute("INSERT INTO state_transitions(job_id,from_state,to_state,revision,side_effect_state,created_at) VALUES(?,?,?,?,?,?)", (job_id, previous.value, state.value, next_revision, side_effect_state, now))
                 if receipt is not None:
                     digest = hashlib.sha256(canonical_json(receipt)).hexdigest()
@@ -897,19 +1301,175 @@ class GitOpsJobController:
             _allow_verified_external_recovery=True,
         )
 
-    def reconcile(self, job_id: str, observer: Callable[[Mapping[str, Any]], Mapping[str, Any]]) -> JobReceipt:
-        current = self.store.read(job_id)
-        if JobState(current["state"]) not in _RECOVERABLE:
-            return self.store._receipt(current, duplicate=True)
-        self.advance(job_id, JobState.RECONCILING, side_effect_state="IN_PROGRESS")
+    def _claim_reconciliation(self, job_id: str) -> tuple[dict[str, Any], dict[str, Any]] | None:
+        now = self._now()
+        deadline = _iso_utc(now + timedelta(seconds=self.reconcile_lease_seconds))
         try:
-            observed = dict(observer(current))
+            with self.store._connect() as connection:
+                connection.execute("BEGIN IMMEDIATE")
+                row = connection.execute("SELECT * FROM jobs WHERE job_id=?", (job_id,)).fetchone()
+                if row is None:
+                    raise JobError("JOB_NOT_FOUND")
+                state = JobState(row["state"])
+                if state not in _RECONCILABLE:
+                    connection.commit()
+                    return None
+                existing = connection.execute(
+                    "SELECT * FROM reconciliation_claims WHERE job_id=?", (job_id,)
+                ).fetchone()
+                if (
+                    state == JobState.RECONCILING
+                    and existing is not None
+                    and existing["state"] == "ACTIVE"
+                    and _utc_datetime(existing["lease_expires_at"]) > now
+                ):
+                    raise JobError("RECONCILIATION_CLAIM_ACTIVE")
+                epoch = 1 if existing is None else int(existing["reconcile_epoch"]) + 1
+                claim_id = f"reconcile-{job_id}-{epoch}"
+                revision = int(row["revision"])
+                claimed_revision = revision + 1
+                updated = connection.execute(
+                    "UPDATE jobs SET state=?,side_effect_state=?,revision=?,updated_at=? WHERE job_id=? AND revision=?",
+                    (JobState.RECONCILING.value, "IN_PROGRESS", claimed_revision, utc_now(), job_id, revision),
+                )
+                if updated.rowcount != 1:
+                    raise JobError("REVISION_CAS_CONFLICT")
+                connection.execute(
+                    "INSERT INTO state_transitions(job_id,from_state,to_state,revision,side_effect_state,created_at) VALUES(?,?,?,?,?,?)",
+                    (job_id, state.value, JobState.RECONCILING.value, claimed_revision, "IN_PROGRESS", utc_now()),
+                )
+                if existing is None:
+                    connection.execute(
+                        "INSERT INTO reconciliation_claims(job_id,claim_id,reconcile_epoch,base_revision,lease_expires_at,state,revision,updated_at) VALUES(?,?,?,?,?,'ACTIVE',0,?)",
+                        (job_id, claim_id, epoch, claimed_revision, deadline, utc_now()),
+                    )
+                else:
+                    connection.execute(
+                        "UPDATE reconciliation_claims SET claim_id=?,reconcile_epoch=?,base_revision=?,lease_expires_at=?,state='ACTIVE',revision=revision+1,updated_at=? WHERE job_id=?",
+                        (claim_id, epoch, claimed_revision, deadline, utc_now(), job_id),
+                    )
+                current = dict(connection.execute("SELECT * FROM jobs WHERE job_id=?", (job_id,)).fetchone())
+                connection.commit()
+        except JobError:
+            raise
+        except sqlite3.Error as exc:
+            raise ServiceUnavailable("JOB_DB_UNAVAILABLE") from exc
+        claim = {
+            "claim_id": claim_id,
+            "reconcile_epoch": epoch,
+            "base_revision": claimed_revision,
+            "effect_id": json.loads(current["request_json"]).get("binding", {}).get("effect_id", job_id),
+            "observed_at": _iso_utc(now),
+            "lease_expires_at": deadline,
+        }
+        return current, claim
+
+    def _finish_reconciliation(
+        self,
+        job_id: str,
+        claim: Mapping[str, Any],
+        state: JobState,
+        *,
+        side_effect_state: str,
+        receipt: Mapping[str, Any] | None,
+    ) -> JobReceipt:
+        try:
+            with self.store._connect() as connection:
+                connection.execute("BEGIN IMMEDIATE")
+                current_claim = connection.execute(
+                    "SELECT * FROM reconciliation_claims WHERE job_id=?", (job_id,)
+                ).fetchone()
+                row = connection.execute("SELECT * FROM jobs WHERE job_id=?", (job_id,)).fetchone()
+                if row is None:
+                    raise JobError("JOB_NOT_FOUND")
+                if (
+                    current_claim is None
+                    or current_claim["state"] != "ACTIVE"
+                    or current_claim["claim_id"] != claim["claim_id"]
+                    or int(current_claim["reconcile_epoch"]) != int(claim["reconcile_epoch"])
+                    or int(current_claim["base_revision"]) != int(row["revision"])
+                    or _utc_datetime(current_claim["lease_expires_at"]) <= self._now()
+                ):
+                    raise JobError("RECONCILIATION_CLAIM_LOST")
+                durable_request = json.loads(row["request_json"])
+                generic = durable_request.get("binding", durable_request).get("schema") == "aios.operation-job.v1"
+                if generic and state == JobState.COMPLETED:
+                    self._validate_generic_receipt(connection, row, receipt, recovery=True)
+                revision = int(row["revision"])
+                next_revision = revision + 1
+                receipt_payload = None
+                if receipt is not None:
+                    receipt_payload = dict(receipt)
+                    receipt_payload["reconciliation_claim"] = dict(claim)
+                receipt_json = json.dumps(receipt_payload, sort_keys=True) if receipt_payload is not None else row["receipt_json"]
+                now = utc_now()
+                updated = connection.execute(
+                    "UPDATE jobs SET state=?,side_effect_state=?,revision=?,receipt_json=?,updated_at=? WHERE job_id=? AND revision=?",
+                    (state.value, side_effect_state, next_revision, receipt_json, now, job_id, revision),
+                )
+                if updated.rowcount != 1:
+                    raise JobError("RECONCILIATION_CLAIM_LOST")
+                connection.execute("UPDATE branch_leases SET state='RECONCILED' WHERE job_id=? AND state='ACTIVE'", (job_id,))
+                connection.execute("UPDATE resource_leases SET state='RECONCILED' WHERE job_id=? AND state='ACTIVE'", (job_id,))
+                connection.execute(
+                    "UPDATE reconciliation_claims SET state='COMPLETED',revision=revision+1,updated_at=? WHERE job_id=? AND claim_id=?",
+                    (now, job_id, claim["claim_id"]),
+                )
+                connection.execute(
+                    "INSERT INTO state_transitions(job_id,from_state,to_state,revision,side_effect_state,created_at) VALUES(?,?,?,?,?,?)",
+                    (job_id, row["state"], state.value, next_revision, side_effect_state, now),
+                )
+                if receipt_payload is not None:
+                    digest = hashlib.sha256(canonical_json(receipt_payload)).hexdigest()
+                    connection.execute(
+                        "INSERT INTO receipts(receipt_id,job_id,kind,digest,payload_json,created_at) VALUES(?,?,?,?,?,?)",
+                        (f"receipt-{job_id}-{next_revision}", job_id, f"RECONCILE:{state.value}", digest, json.dumps(receipt_payload, sort_keys=True), now),
+                    )
+                result = dict(connection.execute("SELECT * FROM jobs WHERE job_id=?", (job_id,)).fetchone())
+                connection.commit()
+        except JobError:
+            raise
+        except sqlite3.Error as exc:
+            raise ServiceUnavailable("JOB_DB_UNAVAILABLE") from exc
+        result["request"] = json.loads(result["request_json"])
+        self.store._mirror(result)
+        return self.store._receipt(result, duplicate=True)
+
+    def reconcile(self, job_id: str, observer: Callable[[Mapping[str, Any]], Mapping[str, Any]]) -> JobReceipt:
+        claimed = self._claim_reconciliation(job_id)
+        if claimed is None:
+            current = self.store.read(job_id)
+            return self.store._receipt(current, duplicate=True)
+        current, claim = claimed
+        observed_input = dict(current)
+        observed_input["reconciliation_claim"] = dict(claim)
+        try:
+            observed = dict(observer(observed_input))
             stable = JobState(observed.get("state", JobState.REQUESTED.value))
             if stable in {JobState.RECOVERABLE_FAILURE, JobState.RECONCILING}:
                 raise JobError("RECONCILIATION_UNSTABLE")
-            return self.advance(job_id, stable, side_effect_state=str(observed.get("side_effect_state", "NONE")), receipt=observed.get("receipt"))
+            return self._finish_reconciliation(
+                job_id,
+                claim,
+                stable,
+                side_effect_state=str(observed.get("side_effect_state", "NONE")),
+                receipt=observed.get("receipt"),
+            )
         except Exception as exc:
-            self.advance(job_id, JobState.RECONCILIATION_REQUIRED, side_effect_state="UNKNOWN", receipt={"error_code": type(exc).__name__})
+            if isinstance(exc, JobError) and str(exc) == "RECONCILIATION_CLAIM_LOST":
+                raise
+            try:
+                self._finish_reconciliation(
+                    job_id,
+                    claim,
+                    JobState.RECONCILIATION_REQUIRED,
+                    side_effect_state="UNKNOWN",
+                    receipt={"error_code": type(exc).__name__},
+                )
+            except JobError as finish_exc:
+                if str(finish_exc) == "RECONCILIATION_CLAIM_LOST":
+                    raise finish_exc from exc
+                raise
             raise JobError("RECONCILIATION_REQUIRED") from exc
 
     def resume(self, job_id: str) -> JobReceipt:

active-runtime/app/aios_gitops_job_executor.py

@@ -4,15 +4,16 @@ from __future__ import annotations
 
 import argparse
 import base64
-from dataclasses import dataclass, replace
+from dataclasses import dataclass, field, replace
+from datetime import datetime, timedelta, timezone
 import json
 from pathlib import Path
-from typing import Any, Mapping
+from typing import Any, Callable, Mapping
 
 from aios_authority_git_executor import AuthorityGitExecutor, AuthorityGitError
 from aios_campaign_recovery import RecoveryEvidenceError, load_recovered_authorization
 from aios_gitea_machine_broker import CampaignCapabilityReceipt, GiteaMachineBroker, MachineBrokerError
-from aios_gitops_job_controller import GitOpsJobController, JobError, JobState, JobStore
+from aios_gitops_job_controller import GitOpsJobController, JobError, JobState, JobStore, ServiceUnavailable
 
 
 TASK_ID = "AIOS_AUTONOMOUS_RELEASE_CAMPAIGN_V1"
@@ -34,6 +35,17 @@ class DurableJobExecutor:
     authority: AuthorityGitExecutor
     broker: GiteaMachineBroker
     recovery_path: Path
+    clock: Callable[[], datetime] = field(default=lambda: datetime.now(timezone.utc))
+    lease_seconds: int = 60
+    _persistence_halted: bool = field(default=False, init=False, repr=False)
+
+    def __post_init__(self) -> None:
+        try:
+            self.controller.assert_effect_admission()
+        except JobError as exc:
+            if str(exc) != "EFFECT_ADMISSION_LATCHED":
+                raise
+            self._persistence_halted = True
 
     def _request(self, job_id: str) -> tuple[dict[str, Any], dict[str, Any]]:
         row = self.controller.store.read(job_id)
@@ -41,7 +53,14 @@ class DurableJobExecutor:
             request = json.loads(row["request_json"])
         except (KeyError, TypeError, json.JSONDecodeError) as exc:
             raise JobExecutionError("JOB_REQUEST_INVALID") from exc
-        return row, dict(request.get("binding") or {})
+        binding = dict(request.get("binding") or {})
+        # Payload location is derived from and protected by payload_digest, but
+        # is intentionally outside the idempotency binding.  Execution still
+        # needs it after a durable round trip.
+        for field_name in ("payload_ref", "payload_size"):
+            if field_name in request:
+                binding[field_name] = request[field_name]
+        return row, binding
 
     def _validate_campaign(self, request: Mapping[str, Any]) -> str:
         operation = str(request.get("operation", ""))
@@ -89,151 +108,372 @@ class DurableJobExecutor:
             raise JobExecutionError("NEW_OID_NOT_DESCENDANT")
         if not self.authority.ancestry_check(EXPECTED_BRANCH_OID, new_oid):
             raise JobExecutionError("NEW_OID_OUTSIDE_AUTHORIZED_LINEAGE")
+        if operation == "RECONCILE_AUTHORITY_MAIN":
+            old_main = request.get("expected_main_oid")
+            if (
+                not isinstance(old_main, str)
+                or len(old_main) != 40
+                or any(ch not in "0123456789abcdef" for ch in old_main)
+            ):
+                raise JobExecutionError("MAIN_RECONCILIATION_BINDING_INVALID")
+            if not self.authority.ancestry_check(old_main, new_oid):
+                raise JobExecutionError("MAIN_OID_NOT_DESCENDANT")
         identity = self.broker.verify_identity()
         if identity.get("repository") != REPOSITORY or identity.get("login") == "aiman":
             raise JobExecutionError("MACHINE_IDENTITY_SCOPE_INVALID")
         return new_oid
 
     def dry_run(self, job_id: str) -> dict[str, Any]:
-        _row, request = self._request(job_id)
-        new_oid = self._validate_campaign(request)
-        remote = self.broker.readback()
-        if remote is None:
-            action = "CREATE_REQUIRED"
-        elif remote == new_oid:
-            action = "ALREADY_IN_SYNC"
-        elif remote == request["expected_branch_oid"]:
-            action = "FAST_FORWARD_REQUIRED"
-        else:
-            action = "MANUAL_OWNER_REVIEW_REQUIRED"
-        if action == "MANUAL_OWNER_REVIEW_REQUIRED":
-            raise JobExecutionError("GITEA_BRANCH_CONFLICT")
-        return {
+        row, request = self._request(job_id)
+        operation = str(request.get("operation") or "")
+        if operation not in {
+            "ADVANCE_EXISTING_CAMPAIGN_BRANCH", "COMMIT_FILE",
+            "SYNC_TASK_BRANCH_TO_GITEA", "CREATE_PR", "PUBLISH_CHECK",
+            "PROTECTED_MERGE", "RECONCILE_AUTHORITY_MAIN",
+        }:
+            raise JobExecutionError("OPERATION_NOT_ALLOWED")
+        self._validate_campaign(request)
+        if operation == "COMMIT_FILE":
+            self._commit_file_spec(row, request)
+        observation = self._observe_operation(request)
+        result = {
+            "mode": "DRY_RUN",
+            "operation": operation,
             "decision": "SAFE_TO_ADVANCE",
-            "authority_action": "CAS_REQUIRED",
-            "gitea_action": action,
-            "previous_branch_oid": request["expected_branch_oid"],
-            "final_branch_oid": new_oid,
-            "force_push": False,
+            "effect_performed": False,
+            "readback": observation,
         }
-
-    def _recover_requested(self, job_id: str) -> dict[str, Any]:
-        row = self.controller.store.read(job_id)
-        if JobState(row["state"]) in {JobState.RECOVERABLE_FAILURE, JobState.RECONCILIATION_REQUIRED}:
-            self.controller.resume(job_id)
-            row = self.controller.store.read(job_id)
-        return row
+        if operation == "ADVANCE_EXISTING_CAMPAIGN_BRANCH":
+            result.update({
+                "authority_action": "CAS_REQUIRED",
+                "gitea_action": "ALREADY_IN_SYNC" if observation["verification"] == "VERIFIED" else "FAST_FORWARD_REQUIRED",
+                "previous_branch_oid": request["expected_branch_oid"],
+                "final_branch_oid": request["new_branch_oid"],
+                "force_push": False,
+            })
+        return result
 
     def execute(self, job_id: str, *, dry_run: bool = False) -> dict[str, Any]:
+        if dry_run:
+            return self.dry_run(job_id)
+        if self._persistence_halted:
+            raise JobExecutionError("PERSISTENCE_FAILURE_LATCHED")
         try:
-            return self._execute_unprotected(job_id, dry_run=dry_run)
+            return self._execute_unprotected(job_id)
+        except ServiceUnavailable:
+            self._persistence_halted = True
+            raise
         except Exception as exc:
             try:
                 row = self.controller.store.read(job_id)
                 state = JobState(row["state"])
-                if state not in {JobState.COMPLETED, JobState.MANUAL_OWNER_REVIEW_REQUIRED, JobState.RECOVERABLE_FAILURE, JobState.RECONCILIATION_REQUIRED}:
-                    self.controller.advance(job_id, JobState.RECOVERABLE_FAILURE, side_effect_state="UNKNOWN", receipt={"error_code": type(exc).__name__})
-            except Exception:
-                pass
+                if state in {
+                    JobState.EXECUTING, JobState.LOCAL_VERIFIED,
+                    JobState.REMOTE_SYNCING, JobState.REMOTE_VERIFIED,
+                }:
+                    self.controller.advance(
+                        job_id,
+                        JobState.RECONCILIATION_REQUIRED,
+                        side_effect_state="UNKNOWN",
+                        receipt={"error_code": type(exc).__name__, "verification": "UNKNOWN"},
+                    )
+                elif state not in {
+                    JobState.COMPLETED, JobState.MANUAL_OWNER_REVIEW_REQUIRED,
+                    JobState.RECOVERABLE_FAILURE, JobState.RECONCILIATION_REQUIRED,
+                }:
+                    self.controller.advance(
+                        job_id, JobState.RECOVERABLE_FAILURE,
+                        side_effect_state="NONE",
+                        receipt={"error_code": type(exc).__name__, "effect_performed": False},
+                    )
+            except ServiceUnavailable:
+                self._persistence_halted = True
             raise
 
-    def _execute_unprotected(self, job_id: str, *, dry_run: bool = False) -> dict[str, Any]:
+    def _execute_unprotected(self, job_id: str) -> dict[str, Any]:
         row, request = self._request(job_id)
-        operation = request.get("operation")
-        if operation == "ADVANCE_EXISTING_CAMPAIGN_BRANCH":
-            if dry_run:
-                return self.dry_run(job_id)
-            return self._advance_campaign(job_id)
-        if operation == "COMMIT_FILE":
-            return self._commit_file(job_id, request)
-        if operation == "SYNC_TASK_BRANCH_TO_GITEA":
-            new_oid = self._validate_campaign(request)
-            final = self.broker.push_branch(new_oid)
-            return {"operation": operation, "remote_verified": final == new_oid, "final_network_oid": final}
-        if operation == "CREATE_PR":
-            self._validate_campaign(request)
-            return dict(self.broker.create_pr("AIOS autonomous release control plane", "Durable campaign continuation; exact head and recovery evidence are bound in the Job."))
-        if operation == "PUBLISH_CHECK":
-            self._validate_campaign(request)
-            context = request.get("check_context", "aios/durable-release")
-            state = request.get("check_state", "success")
-            description = request.get("check_description", "Durable campaign control-plane check passed")
-            return dict(self.broker.status(str(state), str(description), str(context)))
-        if operation == "PROTECTED_MERGE":
-            self._validate_campaign(request)
-            number = int(request.get("pr_number", "0"))
-            self.broker.transport.expected_merge_head = request["expected_branch_oid"]
-            expected_main = request.get("expected_main_oid")
-            if expected_main is not None:
-                self.broker.transport.expected_merge_base = expected_main
-            return dict(self.broker.merge(number))
-        if operation == "RECONCILE_AUTHORITY_MAIN":
-            self._validate_campaign(request)
-            old = request.get("expected_main_oid")
-            new = request.get("new_branch_oid")
-            if not isinstance(old, str) or not isinstance(new, str):
-                raise JobExecutionError("MAIN_RECONCILIATION_BINDING_INVALID")
-            gitea_main = self.broker.transport.read_branch("main")
-            if gitea_main != new:
-                raise JobExecutionError("GITEA_MAIN_EXPECTATION_MISMATCH")
-            if not self.authority.ancestry_check(old, new):
-                raise JobExecutionError("MAIN_OID_NOT_DESCENDANT")
-            return {"authority_main": self.authority.ff_CAS_main_after_verified_protected_merge(old, new)}
-        raise JobExecutionError("OPERATION_NOT_ALLOWED")
+        state = JobState(row["state"])
+        if state == JobState.COMPLETED:
+            return self.controller.store._receipt(row, duplicate=True).as_dict()
+        if state in {
+            JobState.RECOVERABLE_FAILURE, JobState.RECONCILIATION_REQUIRED,
+            JobState.RECONCILING, JobState.EXECUTING, JobState.LOCAL_VERIFIED,
+            JobState.REMOTE_SYNCING, JobState.REMOTE_VERIFIED,
+        }:
+            return self.reconcile(job_id)
 
-    def _advance_campaign(self, job_id: str) -> dict[str, Any]:
-        self._recover_requested(job_id)
-        row, request = self._request(job_id)
-        new_oid = self._validate_campaign(request)
-        expected_oid = request["expected_branch_oid"]
+        operation = str(request.get("operation") or "")
+        if operation not in {
+            "ADVANCE_EXISTING_CAMPAIGN_BRANCH", "COMMIT_FILE",
+            "SYNC_TASK_BRANCH_TO_GITEA", "CREATE_PR", "PUBLISH_CHECK",
+            "PROTECTED_MERGE", "RECONCILE_AUTHORITY_MAIN",
+        }:
+            raise JobExecutionError("OPERATION_NOT_ALLOWED")
+        try:
+            self.controller.assert_effect_admission(exclude_job_id=job_id)
+        except JobError as exc:
+            if str(exc) == "EFFECT_ADMISSION_LATCHED":
+                self._persistence_halted = True
+                raise JobExecutionError("PERSISTENCE_FAILURE_LATCHED") from exc
+            raise
+        self._validate_campaign(request)
+        if operation == "COMMIT_FILE":
+            self._commit_file_spec(row, request)
+        row = self._prepare_intent(job_id, row, request)
+        generation = int(request.get("generation", "1"))
+        self.controller.assert_execution_lease(job_id, generation=generation)
+
+        before = self._observe_operation(request)
+        if before["verification"] == "VERIFIED":
+            return self._complete(job_id, request, {"reconciled_before_effect": True}, before)
+        if before["verification"] != "ABSENT":
+            return self._record_unknown(job_id, request, before)
+
+        effect = self._perform_effect(job_id, row, request, generation)
+        after = self._observe_operation(request)
+        if after["verification"] != "VERIFIED":
+            return self._record_unknown(job_id, request, after, effect=effect)
+        return self._complete(job_id, request, effect, after)
+
+    def _prepare_intent(
+        self, job_id: str, row: Mapping[str, Any], request: Mapping[str, Any]
+    ) -> dict[str, Any]:
         state = JobState(row["state"])
         if state == JobState.REQUESTED:
-            receipt = self.controller.advance(job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED", receipt={"authorization_digest": AUTHORIZATION_DIGEST, "task_id": TASK_ID})
+            self.controller.advance(
+                job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED",
+                receipt={"authorization_digest": AUTHORIZATION_DIGEST, "task_id": TASK_ID},
+                expected_revision=int(row["revision"]),
+            )
             row = self.controller.store.read(job_id)
-        if JobState(row["state"]) == JobState.AUTHORIZED:
-            self.controller.lease_job(job_id, lease_id=f"lease-{job_id}", lineage_anchor_oid=LINEAGE_ANCHOR, current_head_oid=expected_oid, generation=1, lease_expires_at="2099-01-01T00:00:00Z", expected_revision=int(row["revision"]))
+            state = JobState(row["state"])
+        if state == JobState.AUTHORIZED:
+            deadline = self.clock().astimezone(timezone.utc) + timedelta(seconds=self.lease_seconds)
+            self.controller.lease_job(
+                job_id,
+                lease_id=f"lease-{job_id}",
+                lineage_anchor_oid=LINEAGE_ANCHOR,
+                current_head_oid=str(request["expected_branch_oid"]),
+                generation=int(request.get("generation", "1")),
+                lease_expires_at=deadline.isoformat(),
+                expected_revision=int(row["revision"]),
+            )
             row = self.controller.store.read(job_id)
-        if JobState(row["state"]) == JobState.LEASED:
-            self.controller.advance(job_id, JobState.WORKTREE_READY, side_effect_state="WORKTREE_READY", receipt={"branch": BRANCH, "expected_oid": expected_oid})
+            state = JobState(row["state"])
+        if state == JobState.LEASED:
+            self.controller.advance(
+                job_id, JobState.WORKTREE_READY, side_effect_state="WORKTREE_READY",
+                expected_revision=int(row["revision"]),
+            )
             row = self.controller.store.read(job_id)
-        if JobState(row["state"]) == JobState.WORKTREE_READY:
-            self.controller.advance(job_id, JobState.EXECUTING, side_effect_state="IN_PROGRESS")
+            state = JobState(row["state"])
+        if state == JobState.WORKTREE_READY:
+            self.controller.advance(
+                job_id, JobState.EXECUTING, side_effect_state="INTENT_COMMITTED",
+                receipt={
+                    "effect_id": job_id,
+                    "operation": request["operation"],
+                    "input_digest": row["payload_digest"],
+                    "intent_committed": True,
+                },
+                expected_revision=int(row["revision"]),
+            )
             row = self.controller.store.read(job_id)
-        authority_before = self.authority.read_ref(f"refs/heads/{BRANCH}")
-        if authority_before == expected_oid:
-            authority_oid = self.authority.advance_task_branch_CAS(f"refs/heads/{BRANCH}", expected_oid, new_oid)
-        elif authority_before == new_oid:
-            authority_oid = new_oid
-        else:
-            raise JobExecutionError("AUTHORITY_BRANCH_CONFLICT")
-        row = self.controller.store.read(job_id)
-        if JobState(row["state"]) == JobState.EXECUTING:
-            self.controller.advance(job_id, JobState.LOCAL_VERIFIED, side_effect_state="LOCAL_VERIFIED", receipt={"authority": {"branch": BRANCH, "previous_oid": expected_oid, "new_oid": new_oid, "CAS_success": True, "readback_oid": authority_oid}})
-        row = self.controller.store.read(job_id)
-        remote_before = self.broker.readback()
-        if remote_before != new_oid:
-            if remote_before not in {None, expected_oid}:
-                raise JobExecutionError("GITEA_BRANCH_CONFLICT")
-            if JobState(row["state"]) == JobState.LOCAL_VERIFIED:
-                if hasattr(self.broker, "receipt"):
-                    self.broker.receipt = replace(self.broker.receipt, expected_oid=expected_oid)
-                self.controller.advance(job_id, JobState.REMOTE_SYNCING, side_effect_state="IN_PROGRESS", receipt={"gitea": {"previous_oid": remote_before, "desired_oid": new_oid, "force_push": False}})
-            final_network = self.broker.push_branch(new_oid)
-        else:
-            final_network = new_oid
-        final_api = self.broker.readback()
-        if final_api != new_oid:
-            raise JobExecutionError("GITEA_BRANCH_READBACK_MISMATCH")
-        row = self.controller.store.read(job_id)
-        if JobState(row["state"]) in {JobState.LOCAL_VERIFIED, JobState.REMOTE_SYNCING}:
-            self.controller.advance(job_id, JobState.REMOTE_VERIFIED, side_effect_state="REMOTE_VERIFIED", receipt={"gitea": {"machine_actor": "aios-autonomy-agent", "previous_oid": remote_before, "desired_oid": new_oid, "final_network_oid": final_network, "final_API_oid": final_api, "force_push": False}})
-        row = self.controller.store.read(job_id)
-        if JobState(row["state"]) == JobState.REMOTE_VERIFIED:
-            self.controller.advance(job_id, JobState.COMPLETED, side_effect_state="REMOTE_VERIFIED", receipt={"authority_oid": authority_oid, "network_oid": final_network, "gitea_api_oid": final_api, "force_push": False})
-        return self.controller.store._receipt(self.controller.store.read(job_id), duplicate=True).as_dict()
+        if JobState(row["state"]) != JobState.EXECUTING:
+            raise JobExecutionError("JOB_EXECUTION_STATE_INVALID")
+        return dict(row)
 
-    def _commit_file(self, job_id: str, request: Mapping[str, Any]) -> dict[str, Any]:
+    def _perform_effect(
+        self,
+        job_id: str,
+        row: Mapping[str, Any],
+        request: Mapping[str, Any],
+        generation: int,
+    ) -> dict[str, Any]:
+        operation = str(request["operation"])
+        new_oid = str(request["new_branch_oid"])
+        self.controller.assert_execution_lease(job_id, generation=generation)
+        if operation == "ADVANCE_EXISTING_CAMPAIGN_BRANCH":
+            expected = str(request["expected_branch_oid"])
+            current = self.authority.read_ref(f"refs/heads/{BRANCH}")
+            authority_oid = new_oid if current == new_oid else self.authority.advance_task_branch_CAS(
+                f"refs/heads/{BRANCH}", expected, new_oid
+            )
+            self.controller.assert_execution_lease(job_id, generation=generation)
+            remote = self.broker.readback()
+            if remote != new_oid:
+                if hasattr(self.broker, "receipt"):
+                    self.broker.receipt = replace(self.broker.receipt, expected_oid=expected)
+                self.broker.push_branch(new_oid)
+            return {"authority_oid": authority_oid, "network_oid": new_oid, "force_push": False}
+        if operation == "SYNC_TASK_BRANCH_TO_GITEA":
+            return {"final_network_oid": self.broker.push_branch(new_oid), "force_push": False}
+        if operation == "CREATE_PR":
+            return dict(self.broker.create_pr(
+                "AIOS autonomous release control plane",
+                "Durable campaign continuation; exact head and recovery evidence are bound in the Job.",
+            ))
+        if operation == "PUBLISH_CHECK":
+            return dict(self.broker.status(
+                str(request.get("check_state", "success")),
+                str(request.get("check_description", "Durable campaign control-plane check passed")),
+                str(request.get("check_context", "aios/durable-release")),
+            ))
+        if operation == "PROTECTED_MERGE":
+            number = int(request.get("pr_number", "0"))
+            self.broker.transport.expected_merge_head = request["expected_branch_oid"]
+            if request.get("expected_main_oid") is not None:
+                self.broker.transport.expected_merge_base = request["expected_main_oid"]
+            return dict(self.broker.merge(number))
+        if operation == "RECONCILE_AUTHORITY_MAIN":
+            old = request.get("expected_main_oid")
+            if not isinstance(old, str):
+                raise JobExecutionError("MAIN_RECONCILIATION_BINDING_INVALID")
+            if self.broker.transport.read_branch("main") != new_oid:
+                raise JobExecutionError("GITEA_MAIN_EXPECTATION_MISMATCH")
+            return {"authority_main": self.authority.ff_CAS_main_after_verified_protected_merge(old, new_oid)}
+        if operation == "COMMIT_FILE":
+            path, content = self._commit_file_spec(row, request)
+            return {
+                "new_oid": self.authority.commit_file_in_isolated_worktree(
+                    base_oid=row["expected_branch_oid"], files={path: content},
+                    message="chore(gitops): durable commit-file", worktree_name=job_id,
+                )
+            }
+        raise JobExecutionError("OPERATION_NOT_ALLOWED")
+
+    def _observe_operation(self, request: Mapping[str, Any]) -> dict[str, Any]:
+        operation = str(request["operation"])
+        new_oid = str(request["new_branch_oid"])
+        if operation == "ADVANCE_EXISTING_CAMPAIGN_BRANCH":
+            authority = self.authority.read_ref(f"refs/heads/{BRANCH}")
+            remote = self.broker.readback()
+            if authority == new_oid and remote == new_oid:
+                return {"verification": "VERIFIED", "authority_oid": authority, "remote_oid": remote}
+            expected = request["expected_branch_oid"]
+            if authority == expected and remote in {None, expected}:
+                return {"verification": "ABSENT", "authority_oid": authority, "remote_oid": remote}
+            return {"verification": "UNKNOWN", "blocker": "PARTIAL_OR_CONFLICTING_BRANCH_EFFECT", "authority_oid": authority, "remote_oid": remote}
+        if operation == "SYNC_TASK_BRANCH_TO_GITEA":
+            remote = self.broker.readback()
+            if remote == new_oid:
+                return {"verification": "VERIFIED", "remote_oid": remote}
+            if remote in {None, EXPECTED_BRANCH_OID}:
+                return {"verification": "ABSENT", "remote_oid": remote}
+            return {"verification": "UNKNOWN", "blocker": "REMOTE_BRANCH_CONFLICT", "remote_oid": remote}
+        if operation == "RECONCILE_AUTHORITY_MAIN":
+            current = self.authority.read_ref("refs/heads/main")
+            if current == new_oid:
+                return {"verification": "VERIFIED", "authority_main": current}
+            if current == request.get("expected_main_oid"):
+                return {"verification": "ABSENT", "authority_main": current}
+            return {"verification": "UNKNOWN", "blocker": "AUTHORITY_MAIN_CONFLICT", "authority_main": current}
+        if operation == "CREATE_PR" and hasattr(self.broker, "read_pr"):
+            value = self.broker.read_pr(BRANCH, "main", new_oid)
+            return {"verification": "VERIFIED" if value else "ABSENT", "pr": value}
+        if operation == "PUBLISH_CHECK" and hasattr(self.broker, "read_status"):
+            value = self.broker.read_status(
+                new_oid, str(request.get("check_context", "aios/durable-release"))
+            )
+            if value is None:
+                return {"verification": "ABSENT"}
+            expected_state = str(request.get("check_state", "success"))
+            return {"verification": "VERIFIED" if value.get("status") == expected_state else "UNKNOWN", "status": dict(value), **({} if value.get("status") == expected_state else {"blocker": "STATUS_READBACK_MISMATCH"})}
+        if operation == "PROTECTED_MERGE" and hasattr(self.broker, "read_merge"):
+            value = self.broker.read_merge(int(request.get("pr_number", "0")))
+            if value is None:
+                return {"verification": "ABSENT"}
+            if value.get("merged") is True and value.get("head_oid") == request["expected_branch_oid"]:
+                return {"verification": "VERIFIED", "merge": dict(value)}
+            if value.get("merged") is False:
+                return {"verification": "ABSENT", "merge": dict(value)}
+            return {"verification": "UNKNOWN", "blocker": "MERGE_READBACK_MISMATCH", "merge": dict(value)}
+        return {"verification": "UNKNOWN", "blocker": "EXACT_READBACK_UNSUPPORTED"}
+
+    def _complete(
+        self, job_id: str, request: Mapping[str, Any], effect: Mapping[str, Any], observation: Mapping[str, Any]
+    ) -> dict[str, Any]:
         row = self.controller.store.read(job_id)
+        receipt = {
+            "effect_id": job_id,
+            "operation": request["operation"],
+            "effect": dict(effect),
+            "verification": "VERIFIED",
+            "readback": dict(observation),
+        }
+        completed = self.controller.advance(
+            job_id, JobState.COMPLETED, side_effect_state="VERIFIED",
+            receipt=receipt, expected_revision=int(row["revision"]),
+        )
+        return completed.as_dict()
+
+    def _record_unknown(
+        self,
+        job_id: str,
+        request: Mapping[str, Any],
+        observation: Mapping[str, Any],
+        *,
+        effect: Mapping[str, Any] | None = None,
+    ) -> dict[str, Any]:
+        row = self.controller.store.read(job_id)
+        receipt = {
+            "effect_id": job_id,
+            "operation": request["operation"],
+            "effect": dict(effect) if effect is not None else None,
+            "verification": "UNKNOWN",
+            "blocker": observation.get("blocker", "READBACK_INCONCLUSIVE"),
+            "readback": dict(observation),
+        }
+        pending = self.controller.advance(
+            job_id, JobState.RECONCILIATION_REQUIRED, side_effect_state="UNKNOWN",
+            receipt=receipt, expected_revision=int(row["revision"]),
+        )
+        return pending.as_dict()
+
+    def reconcile(self, job_id: str) -> dict[str, Any]:
+        def observer(_current: Mapping[str, Any]) -> Mapping[str, Any]:
+            _row, request = self._request(job_id)
+            self._validate_campaign(request)
+            observation = self._observe_operation(request)
+            if observation["verification"] == "VERIFIED":
+                return {
+                    "state": JobState.COMPLETED.value,
+                    "side_effect_state": "VERIFIED",
+                    "receipt": {
+                        "effect_id": job_id, "operation": request["operation"],
+                        "effect": None, "verification": "VERIFIED",
+                        "readback": observation, "reconciled": True,
+                    },
+                }
+            if observation["verification"] == "ABSENT":
+                return {
+                    "state": JobState.REQUESTED.value,
+                    "side_effect_state": "RECONCILED_ABSENT",
+                    "receipt": {
+                        "effect_id": job_id, "operation": request["operation"],
+                        "verification": "ABSENT", "readback": observation,
+                        "reconciled": True,
+                    },
+                }
+            return {
+                "state": JobState.RECONCILIATION_REQUIRED.value,
+                "side_effect_state": "UNKNOWN",
+                "receipt": {
+                    "effect_id": job_id, "operation": request["operation"],
+                    "verification": "UNKNOWN",
+                    "blocker": observation.get("blocker", "READBACK_INCONCLUSIVE"),
+                    "readback": observation, "reconciled": True,
+                },
+            }
+
+        result = self.controller.reconcile(job_id, observer).as_dict()
+        if result["state"] in {JobState.COMPLETED.value, JobState.REQUESTED.value}:
+            self._persistence_halted = False
+        return result
+
+    def _commit_file_spec(
+        self, row: Mapping[str, Any], request: Mapping[str, Any]
+    ) -> tuple[str, bytes]:
         payload_ref = request.get("payload_ref")
         if not payload_ref:
             raise JobExecutionError("PAYLOAD_REQUIRED")
@@ -244,8 +484,7 @@ class DurableJobExecutor:
             content = base64.b64decode(spec["content_base64"], validate=True)
         except Exception as exc:
             raise JobExecutionError("COMMIT_FILE_PAYLOAD_INVALID") from exc
-        new_oid = self.authority.commit_file_in_isolated_worktree(base_oid=row["expected_branch_oid"], files={path: content}, message="chore(gitops): durable commit-file", worktree_name=job_id)
-        return {"operation": "COMMIT_FILE", "new_oid": new_oid}
+        return path, content
 
 
 def build_from_environment(job_root: Path) -> DurableJobExecutor:

active-runtime/app/aios_gitops_job_identity.py

@@ -0,0 +1,32 @@
+"""Collision-resistant storage keys for durable governed Task state."""
+from __future__ import annotations
+
+import hashlib
+import re
+
+
+class JobIdentityError(RuntimeError):
+    pass
+
+
+def legacy_task_storage_key(task_id: str) -> str:
+    """Return the historical lossy key solely to detect migration conflicts."""
+    if not isinstance(task_id, str) or not task_id:
+        raise JobIdentityError("TASK_ID_INVALID")
+    return re.sub(r"[^A-Za-z0-9_.-]+", "-", task_id).strip("-")[:120] or "task"
+
+
+def task_storage_key(task_id: str) -> str:
+    """Return a canonical collision-resistant key for every Task state sink."""
+    if (
+        not isinstance(task_id, str)
+        or not task_id
+        or task_id != task_id.strip()
+        or len(task_id) > 512
+    ):
+        raise JobIdentityError("TASK_ID_INVALID")
+    readable = re.sub(r"[^A-Za-z0-9_.-]+", "-", task_id).strip("-")[:48] or "task"
+    digest = hashlib.sha256(
+        ("aios-task-storage-v1\0" + task_id).encode("utf-8")
+    ).hexdigest()
+    return f"{readable}-{digest}"

active-runtime/app/aios_governed_task_bootstrap.py

@@ -4,13 +4,22 @@ from __future__ import annotations
 from dataclasses import dataclass, asdict
 import hashlib
 import json
+import os
 from pathlib import Path
 import re
+import stat
+import tempfile
 from typing import Any, Mapping
 
 from aios_gitops_job_controller import GitOpsJobController, JobStore
+from aios_gitops_job_identity import legacy_task_storage_key, task_storage_key
 from aios_online_agent_execution import GovernedExecutionBinding, project_execution_envelope
 
+try:  # pragma: no cover - exercised on the Linux activation host
+    import fcntl
+except ImportError:  # pragma: no cover - non-POSIX execution stays fail closed
+    fcntl = None  # type: ignore[assignment]
+
 OID_RE = re.compile(r"^[0-9a-f]{40}$")
 BRANCH_RE = re.compile(r"^agent/[A-Za-z0-9][A-Za-z0-9._/-]{2,179}$")
 
@@ -19,6 +28,29 @@ class BootstrapError(RuntimeError):
     pass
 
 
+def _lexists(path: Path) -> bool:
+    try:
+        path.lstat()
+        return True
+    except FileNotFoundError:
+        return False
+
+
+def _require_runtime_directory(path: Path) -> None:
+    try:
+        metadata = path.lstat()
+    except OSError as exc:
+        raise BootstrapError("TASK_STORAGE_PARENT_INVALID") from exc
+    expected_uid = getattr(os, "geteuid", lambda: metadata.st_uid)()
+    if (
+        stat.S_ISLNK(metadata.st_mode)
+        or not stat.S_ISDIR(metadata.st_mode)
+        or metadata.st_mode & 0o022
+        or metadata.st_uid != expected_uid
+    ):
+        raise BootstrapError("TASK_STORAGE_PARENT_INVALID")
+
+
 @dataclass(frozen=True, slots=True)
 class GovernedTaskBinding:
     task_id: str
@@ -37,25 +69,95 @@ class GovernedTaskBinding:
         return {"task_id": self.task_id, "repository": self.repository, "base_oid": self.base_oid, "target_branch": self.target_branch, "expected_branch_oid": self.expected_branch_oid, "generation": self.generation, "branch_mode": self.branch_mode, "create_target_branch": self.branch_mode == "CREATE_NEW", "worktree_mode": "detached_at_base_oid" if self.branch_mode == "CREATE_NEW" else "detached_at_expected_head", "cas_ref_update_required": True, "idempotent": idempotent, "state": "BOUND", "job_id": self.job_id}
 
 
-def _safe(value: str) -> str:
-    return re.sub(r"[^A-Za-z0-9_.-]+", "-", value).strip("-")[:120] or "task"
 
+# ===== AIOS Formal Lineage producer-native reservation v12 =====
+import re as _fl_re
+
+_FL_PRODUCER_KEY = _fl_re.compile(r"^[0-9a-f]{64}$")
+
+def _formal_lineage_reservation_receipt(
+    value,
+    *,
+    request_idempotency_key: str,
+    expected_side_effect_state: str,
+):
+    if callable(getattr(value, "as_dict", None)):
+        raw=value.as_dict()
+    elif isinstance(value, dict):
+        raw=dict(value)
+    else:
+        raise RuntimeError("GOVERNED_TASK_SUBMIT_RECEIPT_TYPE_INVALID")
+
+    producer_key=raw.get("idempotency_key")
+    job_id=raw.get("job_id")
+    if not isinstance(job_id,str) or not job_id:
+        raise RuntimeError("GOVERNED_TASK_SUBMIT_RECEIPT_JOB_ID_INVALID")
+    if raw.get("state")!="REQUESTED":
+        raise RuntimeError("GOVERNED_TASK_SUBMIT_RECEIPT_STATE_INVALID")
+    if raw.get("side_effect_state")!=expected_side_effect_state:
+        raise RuntimeError("GOVERNED_TASK_SUBMIT_RECEIPT_SIDE_EFFECT_STATE_INVALID")
+    if not isinstance(producer_key,str) or not _FL_PRODUCER_KEY.fullmatch(producer_key):
+        raise RuntimeError("GOVERNED_TASK_SUBMIT_RECEIPT_PRODUCER_IDEMPOTENCY_INVALID")
+    if job_id!="job-"+producer_key[:32]:
+        raise RuntimeError("GOVERNED_TASK_SUBMIT_RECEIPT_JOB_PRODUCER_KEY_CONFLICT")
+    if not isinstance(request_idempotency_key,str) or not request_idempotency_key:
+        raise RuntimeError("GOVERNED_TASK_REQUEST_IDEMPOTENCY_INVALID")
+
+    return {
+        "job_id":job_id,
+        "state":"REQUESTED",
+        "side_effect_state":raw["side_effect_state"],
+        "producer_idempotency_key":producer_key,
+        "request_idempotency_key":request_idempotency_key,
+    }
+
+def _formal_lineage_attach_receipt(response, receipt):
+    if not isinstance(response, dict):
+        raise RuntimeError("GOVERNED_TASK_BINDING_RESPONSE_INVALID")
+    if response.get("state")!="BOUND":
+        raise RuntimeError("GOVERNED_TASK_BINDING_STATE_INVALID")
+    if response.get("job_id")!=receipt.get("job_id"):
+        raise RuntimeError("GOVERNED_TASK_BINDING_RECEIPT_JOB_CONFLICT")
+    result=dict(response)
+    result["reservation_receipt"]=dict(receipt)
+    return result
 
 class GovernedTaskBootstrap:
     def __init__(self, authority: Any, root: Path, *, remote_name: str, token_path: Path, ssh_key_path: Path, api_base: str = "https://g.cnnetmkt.top/git/api/v1") -> None:
-        self.authority = authority; self.root = Path(root); self.remote_name = remote_name; self.token_path = Path(token_path); self.ssh_key_path = Path(ssh_key_path); self.api_base = api_base; self.task_meta_root = self.root / "task-bindings"; self.job_root = self.root / "jobs"; self.task_meta_root.mkdir(parents=True, exist_ok=True); self.job_root.mkdir(parents=True, exist_ok=True)
+        self.authority = authority; self.root = Path(root); self.remote_name = remote_name; self.token_path = Path(token_path); self.ssh_key_path = Path(ssh_key_path); self.api_base = api_base; self.task_meta_root = self.root / "task-bindings"; self.job_root = self.root / "jobs"; self.lock_root = self.root / "task-binding-locks"; self.task_meta_root.mkdir(parents=True, exist_ok=True, mode=0o700); self.job_root.mkdir(parents=True, exist_ok=True, mode=0o700); self.lock_root.mkdir(parents=True, exist_ok=True, mode=0o700); _require_runtime_directory(self.task_meta_root); _require_runtime_directory(self.job_root); _require_runtime_directory(self.lock_root)
 
     def _store(self, task_id: str) -> tuple[JobStore, GitOpsJobController]:
-        root = self.job_root / _safe(task_id); store = JobStore(root, payload_root=root / "payloads"); return store, GitOpsJobController(store)
+        root = self.job_root / task_storage_key(task_id)
+        legacy = self.job_root / legacy_task_storage_key(task_id)
+        if legacy != root and _lexists(legacy):
+            if _lexists(root):
+                raise BootstrapError("TASK_STORAGE_LEGACY_CONFLICT")
+            raise BootstrapError("TASK_STORAGE_LEGACY_MIGRATION_REQUIRED")
+        store = JobStore(root, payload_root=root / "payloads")
+        return store, GitOpsJobController(store)
 
     def _metadata(self, task_id: str) -> Path:
-        return self.task_meta_root / (_safe(task_id) + ".json")
+        return self.task_meta_root / (task_storage_key(task_id) + ".json")
+
+    def _legacy_metadata(self, task_id: str) -> Path:
+        return self.task_meta_root / (legacy_task_storage_key(task_id) + ".json")
 
     def _read_existing(self, task_id: str) -> GovernedTaskBinding | None:
         path = self._metadata(task_id)
-        if not path.is_file() or path.is_symlink(): return None
+        legacy = self._legacy_metadata(task_id)
+        if legacy != path and _lexists(legacy):
+            if _lexists(path):
+                raise BootstrapError("TASK_BINDING_LEGACY_CONFLICT")
+            raise BootstrapError("TASK_BINDING_LEGACY_MIGRATION_REQUIRED")
+        if not _lexists(path):
+            return None
+        if not path.is_file() or path.is_symlink():
+            raise BootstrapError("TASK_BINDING_PATH_INVALID")
 
-        return GovernedTaskBinding(**json.loads(path.read_text(encoding="utf-8")))
+        binding = GovernedTaskBinding(**json.loads(path.read_text(encoding="utf-8")))
+        if binding.task_id != task_id:
+            raise BootstrapError("TASK_BINDING_IDENTITY_CONFLICT")
+        return binding
     def get_binding(self, task_id: str) -> GovernedTaskBinding:
         """Read the exact durable binding; never synthesize missing lineage."""
         binding = self._read_existing(str(task_id))
@@ -96,29 +198,106 @@ class GovernedTaskBootstrap:
         )
 
     def _write(self, binding: GovernedTaskBinding) -> None:
-        path = self._metadata(binding.task_id); temporary = path.with_suffix(".tmp"); temporary.write_text(json.dumps(asdict(binding), sort_keys=True), encoding="utf-8"); temporary.replace(path)
+        path = self._metadata(binding.task_id)
+        descriptor, temporary_name = tempfile.mkstemp(
+            prefix=".task-binding-", dir=self.task_meta_root,
+        )
+        temporary = Path(temporary_name)
+        try:
+            os.fchmod(descriptor, 0o600)
+            with os.fdopen(descriptor, "w", encoding="utf-8", newline="\n") as stream:
+                stream.write(json.dumps(asdict(binding), sort_keys=True) + "\n")
+                stream.flush()
+                os.fsync(stream.fileno())
+            os.replace(temporary, path)
+            os.chmod(path, 0o600)
+            parent = os.open(self.task_meta_root, os.O_RDONLY | getattr(os, "O_DIRECTORY", 0))
+            try:
+                os.fsync(parent)
+            finally:
+                os.close(parent)
+        except BaseException:
+            temporary.unlink(missing_ok=True)
+            raise
+
+    def _task_lock(self, task_id: str) -> int:
+        if fcntl is None:
+            raise BootstrapError("TASK_BINDING_LOCK_UNAVAILABLE")
+        path = self.lock_root / (task_storage_key(task_id) + ".lock")
+        descriptor = os.open(
+            path,
+            os.O_RDWR | os.O_CREAT | getattr(os, "O_NOFOLLOW", 0),
+            0o600,
+        )
+        metadata = os.fstat(descriptor)
+        expected_uid = getattr(os, "geteuid", lambda: metadata.st_uid)()
+        if (
+            not stat.S_ISREG(metadata.st_mode)
+            or metadata.st_nlink != 1
+            or metadata.st_uid != expected_uid
+        ):
+            os.close(descriptor)
+            raise BootstrapError("TASK_BINDING_LOCK_INVALID")
+        os.fchmod(descriptor, 0o600)
+        try:
+            fcntl.flock(descriptor, fcntl.LOCK_EX | fcntl.LOCK_NB)
+        except OSError as exc:
+            os.close(descriptor)
+            raise BootstrapError("TASK_BINDING_BUSY") from exc
+        return descriptor
+
+    @staticmethod
+    def _unlock_task(descriptor: int) -> None:
+        if fcntl is not None:
+            fcntl.flock(descriptor, fcntl.LOCK_UN)
+        os.close(descriptor)
 
     def create(self, request: Mapping[str, Any]) -> dict[str, Any]:
         values = {key: str(request[key]) for key in ("task_id", "repository", "base_oid", "target_branch", "risk", "description", "idempotency_key")}
         if values["repository"] != "aios/aios" or not OID_RE.fullmatch(values["base_oid"]): raise BootstrapError("TASK_BINDING_INVALID")
         if not BRANCH_RE.fullmatch(values["target_branch"]): raise BootstrapError("TARGET_BRANCH_INVALID")
-        existing = self._read_existing(values["task_id"])
-        if existing is not None:
-            if any(getattr(existing, key) != values[key] for key in ("repository", "base_oid", "target_branch", "risk", "description")): raise BootstrapError("TASK_BINDING_CONFLICT")
-            return existing.response(idempotent=True)
-        if not self.authority.commit_exists(values["base_oid"]): raise BootstrapError("BASE_COMMIT_NOT_FOUND")
-        current = self.authority.read_ref("refs/heads/" + values["target_branch"])
-        expected = str(request.get("expected_branch_oid") or values["base_oid"])
-        if current is None:
-            mode, generation = "CREATE_NEW", 1
-            if expected != values["base_oid"]: raise BootstrapError("EXPECTED_BASE_CONFLICT")
-        else:
-            if expected != current: raise BootstrapError("EXISTING_BRANCH_OID_CONFLICT")
-            mode, generation = "CONTINUE_EXISTING", int(request.get("generation", 2))
-            if generation < 1: raise BootstrapError("GENERATION_INVALID")
-        payload = json.dumps(values, sort_keys=True, separators=(",", ":")).encode()
-        _, controller = self._store(values["task_id"])
-        receipt = controller.submit({"idempotency_key": values["idempotency_key"], "campaign_id": values["task_id"], "task_id": values["task_id"], "repository": values["repository"], "operation": "GOVERNED_TASK_CREATE", "branch": values["target_branch"], "expected_branch_oid": expected, "payload_digest": hashlib.sha256(payload).hexdigest(), "lineage_anchor_oid": values["base_oid"]}, payload=payload)
-        binding = GovernedTaskBinding(**values, expected_branch_oid=expected, branch_mode=mode, generation=generation, job_id=receipt.job_id)
-        self._write(binding)
-        return binding.response()
+        descriptor = self._task_lock(values["task_id"])
+        try:
+            existing = self._read_existing(values["task_id"])
+            if existing is not None:
+                if any(getattr(existing, key) != values[key] for key in ("repository", "base_oid", "target_branch", "risk", "description", "idempotency_key")): raise BootstrapError("TASK_BINDING_CONFLICT")
+                expected = str(request.get('expected_branch_oid') or values['base_oid'])
+                payload = json.dumps(values, sort_keys=True, separators=(',', ':')).encode()
+                _, controller = self._store(values['task_id'])
+                _fl_submit_receipt = controller.submit({'idempotency_key': values['idempotency_key'], 'campaign_id': values['task_id'], 'task_id': values['task_id'], 'repository': values['repository'], 'operation': 'GOVERNED_TASK_CREATE', 'branch': values['target_branch'], 'expected_branch_oid': expected, 'payload_digest': hashlib.sha256(payload).hexdigest(), 'lineage_anchor_oid': values['base_oid']}, payload=payload)
+                _fl_receipt = _formal_lineage_reservation_receipt(
+                    _fl_submit_receipt, request_idempotency_key=request["idempotency_key"],
+                    expected_side_effect_state='SAME_JOB'
+                )
+                _fl_response = existing.response(idempotent=True)
+                return _formal_lineage_attach_receipt(_fl_response,_fl_receipt)
+            if not self.authority.commit_exists(values["base_oid"]): raise BootstrapError("BASE_COMMIT_NOT_FOUND")
+            current = self.authority.read_ref("refs/heads/" + values["target_branch"])
+            expected = str(request.get("expected_branch_oid") or values["base_oid"])
+            if current is None:
+                mode, generation = "CREATE_NEW", 1
+                if expected != values["base_oid"]: raise BootstrapError("EXPECTED_BASE_CONFLICT")
+            else:
+                if expected != current: raise BootstrapError("EXISTING_BRANCH_OID_CONFLICT")
+                mode, generation = "CONTINUE_EXISTING", int(request.get("generation", 2))
+                if generation < 1: raise BootstrapError("GENERATION_INVALID")
+            payload = json.dumps(values, sort_keys=True, separators=(",", ":")).encode()
+            _, controller = self._store(values["task_id"])
+            expected_job_id = controller.internal_job_id_for_idempotency_key(values["idempotency_key"])
+            with controller.store._connect() as connection:
+                bootstrap_jobs = connection.execute(
+                    "SELECT job_id FROM jobs WHERE operation='GOVERNED_TASK_CREATE' ORDER BY job_id"
+                ).fetchall()
+            if bootstrap_jobs and [str(row[0]) for row in bootstrap_jobs] != [expected_job_id]:
+                raise BootstrapError("TASK_BINDING_RECOVERY_CONFLICT")
+            receipt = controller.submit({"idempotency_key": values["idempotency_key"], "campaign_id": values["task_id"], "task_id": values["task_id"], "repository": values["repository"], "operation": "GOVERNED_TASK_CREATE", "branch": values["target_branch"], "expected_branch_oid": expected, "payload_digest": hashlib.sha256(payload).hexdigest(), "lineage_anchor_oid": values["base_oid"]}, payload=payload)
+            binding = GovernedTaskBinding(**values, expected_branch_oid=expected, branch_mode=mode, generation=generation, job_id=receipt.job_id)
+            self._write(binding)
+            _fl_receipt = _formal_lineage_reservation_receipt(
+                receipt, request_idempotency_key=request["idempotency_key"],
+                expected_side_effect_state="QUEUED"
+            )
+            _fl_response = binding.response()
+            return _formal_lineage_attach_receipt(_fl_response,_fl_receipt)
+        finally:
+            self._unlock_task(descriptor)

active-runtime/app/aios_model_api_staging.py

@@ -2,6 +2,7 @@
 from __future__ import annotations
 import hashlib, hmac, json, os, re, subprocess, sys, time, urllib.parse, urllib.request, uuid
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
+from dataclasses import replace
 from pathlib import Path
 from baseline_authority import BaselineAuthority, BaselineAuthorityError
 from silent_release_controller import ReleaseCandidate
@@ -114,6 +115,9 @@ TRUSTED_BUILDER_SOCKET = Path(os.getenv(
 TRUSTED_BUILDER_PUBLIC_KEYRING = Path(os.getenv(
     'AIOS_TRUSTED_CANDIDATE_BUILDER_PUBLIC_KEYRING', ''
 ))
+TRUSTED_BUILDER_SOURCE_ADMISSION_ROOT = str(os.getenv(
+    'AIOS_TRUSTED_BUILDER_SOURCE_ADMISSION_ROOT', ''
+)).strip()
 TRUSTED_RELEASE_POLICY = Path(os.getenv(
     'AIOS_SILENT_RELEASE_TRUSTED_POLICY',
     str(WS / 'config' / 'gitops' / 'silent-release-policy.json'),
@@ -253,6 +257,14 @@ class _HostTrustedCandidateBuilderAdapter:
                 nonce=secrets.token_hex(32),
             )
         except BuilderError as exc:
+            code = str(exc)
+            if code in {'SOURCE_ADMISSION_REQUIRED', 'RECIPE_UNKNOWN'} or (
+                code == 'REQUEST_RELEASE_BINDING_INVALID'
+                and not intent.get('version')
+            ):
+                raise CapabilityAuthorizationError(
+                    'release source admission required'
+                ) from exc
             raise TrustedCandidateBuilderUnavailable(
                 'trusted builder request failed'
             ) from exc
@@ -290,6 +302,7 @@ def _build_silent_release_service() -> SilentReleaseActionService:
     builder_attestation_verifier = None
     trusted_policy = None
     builder_readiness_probe = None
+    source_admission_resolver = None
     if TRUSTED_BUILDER_ENABLED:
         # Every path is opt-in.  In particular, this API receives its own
         # client HMAC credential, never the builder's signing private key.
@@ -317,6 +330,31 @@ def _build_silent_release_service() -> SilentReleaseActionService:
             client_hmac = (
                 TRUSTED_BUILDER_CREDENTIALS_DIRECTORY / 'builder_hmac'
             ).read_bytes().strip()
+            if TRUSTED_BUILDER_SOURCE_ADMISSION_ROOT:
+                from release_source_admission import ReleaseSourceAdmissionStore
+
+                try:
+                    source_admission_hmac = (
+                        TRUSTED_BUILDER_CREDENTIALS_DIRECTORY
+                        / 'source_admission_hmac'
+                    ).read_bytes().strip()
+                except OSError as exc:
+                    raise CapabilityAuthorizationError(
+                        'release source admission credential is unavailable'
+                    ) from exc
+                source_store = ReleaseSourceAdmissionStore(
+                    Path(TRUSTED_BUILDER_SOURCE_ADMISSION_ROOT),
+                    repository=builder_config.repository,
+                    policy_sha256=builder_config.policy_sha256,
+                    hmac_key=source_admission_hmac,
+                    expected_owner_uid=0,
+                    writable=False,
+                )
+                builder_config = replace(
+                    builder_config,
+                    source_admission_resolver=source_store.resolve_recipe,
+                )
+                source_admission_resolver = source_store.lookup_source
             client_keyring = BuilderKeyring(builder_hmac=client_hmac)
             client = UnixTrustedCandidateBuilderClient(
                 builder_config,
@@ -365,6 +403,7 @@ def _build_silent_release_service() -> SilentReleaseActionService:
         builder_attestation_verifier=builder_attestation_verifier,
         trusted_policy=trusted_policy,
         builder_readiness_probe=builder_readiness_probe,
+        source_admission_resolver=source_admission_resolver,
         allow_legacy_candidate_input=False,
         expected_repository=REPOSITORY_IDENTITY,
         policy_sha256=policy_sha,

active-runtime/app/aios_owner_merge_authorization.py

@@ -0,0 +1,527 @@
+"""Owner-final, structured authorization for one governed pull-request merge.
+
+The Owner approval is the policy decision.  Signing and public verification
+prove that decision but cannot change its repository, pull request, CAS base,
+technical-gate contract, or lifetime.  This module deliberately exposes no
+generic sign-bytes API and does not publish or alter technical check results.
+"""
+from __future__ import annotations
+
+from dataclasses import asdict, dataclass
+import hashlib
+import os
+from pathlib import Path
+import re
+import secrets
+import sqlite3
+import time
+from typing import Any, Callable, Mapping, Protocol
+
+from aios_single_host_authority import (
+    OWNER_NAMESPACE,
+    LocalFileSigner,
+    SignedArtifact,
+    canonical_json_bytes,
+    sha256_json,
+)
+
+
+POLICY_SCHEMA = "aios.owner-merge-approval-policy.v2"
+APPROVAL_SCHEMA = "aios.owner-merge-approval.v2"
+RECEIPT_SCHEMA = "aios.owner-merge-admission-receipt.v2"
+OPERATION = "merge.pull-request"
+
+OID_RE = re.compile(r"^[0-9a-f]{40}$")
+DIGEST_RE = re.compile(r"^[0-9a-f]{64}$")
+REPOSITORY_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._-]{0,127}/[A-Za-z0-9][A-Za-z0-9._-]{0,127}$")
+IDENTITY_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:@/+:-]{2,255}$")
+CHECK_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:-]{1,127}$")
+TOKEN_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9_-]{11,255}$")
+
+
+class OwnerMergeApprovalError(RuntimeError):
+    """Stable fail-closed error for the Owner merge approval contract."""
+
+    def __init__(self, code: str):
+        super().__init__(code)
+        self.code = code
+
+
+def _fail(code: str) -> None:
+    raise OwnerMergeApprovalError(code)
+
+
+def _require_oid(value: object, code: str) -> str:
+    if not isinstance(value, str) or OID_RE.fullmatch(value) is None:
+        _fail(code)
+    return value
+
+
+def _require_digest(value: object, code: str) -> str:
+    if not isinstance(value, str) or DIGEST_RE.fullmatch(value) is None:
+        _fail(code)
+    return value
+
+
+@dataclass(frozen=True, slots=True)
+class OwnerMergeApprovalPolicy:
+    """Immutable policy input for one exact protected merge approval."""
+
+    repository: str
+    pr_number: int
+    pr_head_oid: str
+    expected_main_oid: str
+    operation: str
+    required_check_contract_digest: str
+    required_checks: tuple[str, ...]
+    owner_identity: str
+    audit_lineage_digest: str
+    maximum_ttl_seconds: int
+    policy_version: str = "v2"
+    schema: str = POLICY_SCHEMA
+
+    def validate(self) -> None:
+        if (
+            self.schema != POLICY_SCHEMA
+            or self.policy_version != "v2"
+            or not isinstance(self.repository, str)
+            or REPOSITORY_RE.fullmatch(self.repository) is None
+            or type(self.pr_number) is not int
+            or not 1 <= self.pr_number < 2**31
+            or self.operation != OPERATION
+            or not isinstance(self.owner_identity, str)
+            or IDENTITY_RE.fullmatch(self.owner_identity) is None
+            or type(self.maximum_ttl_seconds) is not int
+            or not 60 <= self.maximum_ttl_seconds <= 900
+        ):
+            _fail("OWNER_MERGE_POLICY_INVALID")
+        _require_oid(self.pr_head_oid, "OWNER_MERGE_POLICY_HEAD_INVALID")
+        _require_oid(self.expected_main_oid, "OWNER_MERGE_POLICY_BASE_INVALID")
+        _require_digest(
+            self.required_check_contract_digest,
+            "OWNER_MERGE_POLICY_CHECK_CONTRACT_INVALID",
+        )
+        _require_digest(self.audit_lineage_digest, "OWNER_MERGE_POLICY_LINEAGE_INVALID")
+        if (
+            not isinstance(self.required_checks, tuple)
+            or not self.required_checks
+            or len(set(self.required_checks)) != len(self.required_checks)
+            or any(not isinstance(item, str) or CHECK_RE.fullmatch(item) is None for item in self.required_checks)
+        ):
+            _fail("OWNER_MERGE_POLICY_REQUIRED_CHECKS_INVALID")
+
+    def as_dict(self) -> dict[str, Any]:
+        self.validate()
+        value = asdict(self)
+        value["required_checks"] = list(self.required_checks)
+        return value
+
+    @property
+    def digest(self) -> str:
+        return sha256_json(self.as_dict())
+
+
+@dataclass(frozen=True, slots=True)
+class OwnerMergeLiveState:
+    """Read-only live evidence; this object has no status publication method."""
+
+    repository: str
+    pr_number: int
+    pr_head_oid: str
+    main_oid: str
+    required_check_contract_digest: str
+    check_statuses: Mapping[str, bool]
+
+
+@dataclass(frozen=True, slots=True)
+class OwnerMergeOidReadback:
+    authority_main_oid: str
+    gitea_main_oid: str
+    api_main_oid: str
+
+
+@dataclass(frozen=True, slots=True)
+class OwnerMergeAdmissionReceipt:
+    approval_id: str
+    nonce: str
+    owner_identity: str
+    policy_digest: str
+    proof_path: str
+    merge_oid: str
+    schema: str = RECEIPT_SCHEMA
+
+
+class ApprovalProofVerifier(Protocol):
+    """Public proof verifier; it is intentionally unable to issue approvals."""
+
+    def verify(
+        self,
+        *,
+        namespace: str,
+        payload: bytes,
+        signature: str,
+        key_id: str,
+    ) -> bool:
+        ...
+
+
+class GovernedMergeExecutor(Protocol):
+    def execute(self, approval: Mapping[str, object]) -> str:
+        ...
+
+
+class MergeOidReconciler(Protocol):
+    def readback(self, merge_oid: str) -> OwnerMergeOidReadback:
+        ...
+
+
+APPROVAL_FIELDS = frozenset(
+    {
+        "schema",
+        "approval_id",
+        "nonce",
+        "repository",
+        "pr_number",
+        "pr_head_oid",
+        "expected_main_oid",
+        "operation",
+        "required_check_contract_digest",
+        "required_checks",
+        "owner_identity",
+        "audit_lineage_digest",
+        "policy_version",
+        "policy_digest",
+        "issued_at",
+        "not_before",
+        "expires_at",
+        "signature_namespace",
+        "signature_key_id",
+        "canonical_payload_digest",
+    }
+)
+
+
+class OwnerMergeApprovalAuthority:
+    """Structured Owner signer for an immutable merge policy.
+
+    ``issue`` has no caller-controlled payload parameter.  The immutable policy
+    selects the complete authorization scope; only approval IDs and nonces are
+    generated inside the authority.
+    """
+
+    def __init__(
+        self,
+        key_path: Path,
+        policy: OwnerMergeApprovalPolicy,
+        *,
+        require_root_owner: bool = True,
+        clock: Callable[[], float] = time.time,
+        token_urlsafe: Callable[[int], str] = secrets.token_urlsafe,
+    ) -> None:
+        policy.validate()
+        self.policy = policy
+        self.signer = LocalFileSigner(
+            Path(key_path),
+            signer_id="local-owner-authority",
+            namespace=OWNER_NAMESPACE,
+            require_root_owner=require_root_owner,
+        )
+        self.clock = clock
+        self.token_urlsafe = token_urlsafe
+
+    def _token(self, prefix: str) -> str:
+        value = prefix + self.token_urlsafe(24)
+        if TOKEN_RE.fullmatch(value) is None:
+            _fail("OWNER_MERGE_AUTHORITY_GENERATED_TOKEN_INVALID")
+        return value
+
+    def issue(self) -> SignedArtifact:
+        now = int(self.clock())
+        approval_id = self._token("owner-merge-approval-")
+        nonce = self._token("owner-merge-nonce-")
+        policy = self.policy
+        payload: dict[str, Any] = {
+            "schema": APPROVAL_SCHEMA,
+            "approval_id": approval_id,
+            "nonce": nonce,
+            "repository": policy.repository,
+            "pr_number": policy.pr_number,
+            "pr_head_oid": policy.pr_head_oid,
+            "expected_main_oid": policy.expected_main_oid,
+            "operation": policy.operation,
+            "required_check_contract_digest": policy.required_check_contract_digest,
+            "required_checks": list(policy.required_checks),
+            "owner_identity": policy.owner_identity,
+            "audit_lineage_digest": policy.audit_lineage_digest,
+            "policy_version": policy.policy_version,
+            "policy_digest": policy.digest,
+            "issued_at": now,
+            "not_before": max(0, now - 5),
+            "expires_at": now + policy.maximum_ttl_seconds,
+            "signature_namespace": OWNER_NAMESPACE,
+            "signature_key_id": self.signer.fingerprint,
+        }
+        payload["canonical_payload_digest"] = sha256_json(payload)
+        return self.signer._sign_canonical(payload)
+
+
+class OwnerMergeApprovalVerifier:
+    """Verify Owner proof, preferring normal verification then recovery proof.
+
+    The recovery verifier validates a pre-existing approval with the registered
+    public Owner root.  It cannot issue an approval and is therefore not a
+    second policy principal.
+    """
+
+    def __init__(
+        self,
+        *,
+        primary: ApprovalProofVerifier,
+        recovery: ApprovalProofVerifier | None = None,
+        clock: Callable[[], float] = time.time,
+    ) -> None:
+        self.primary = primary
+        self.recovery = recovery
+        self.clock = clock
+
+    @staticmethod
+    def _artifact(artifact: SignedArtifact | Mapping[str, Any]) -> tuple[dict[str, Any], str, str, str]:
+        if isinstance(artifact, SignedArtifact):
+            return dict(artifact.payload), artifact.signature, artifact.key_id, artifact.namespace
+        if not isinstance(artifact, Mapping) or set(artifact) != {"payload", "signature", "key_id", "namespace"}:
+            _fail("OWNER_MERGE_APPROVAL_ARTIFACT_INVALID")
+        payload = artifact.get("payload")
+        signature = artifact.get("signature")
+        key_id = artifact.get("key_id")
+        namespace = artifact.get("namespace")
+        if not isinstance(payload, Mapping) or not all(isinstance(item, str) for item in (signature, key_id, namespace)):
+            _fail("OWNER_MERGE_APPROVAL_ARTIFACT_INVALID")
+        return dict(payload), signature, key_id, namespace
+
+    @staticmethod
+    def _validate_scope(payload: Mapping[str, Any], policy: OwnerMergeApprovalPolicy, *, now: int, key_id: str, namespace: str) -> None:
+        if set(payload) != APPROVAL_FIELDS:
+            _fail("OWNER_MERGE_APPROVAL_FIELDS_INVALID")
+        expected = {
+            "schema": APPROVAL_SCHEMA,
+            "repository": policy.repository,
+            "pr_number": policy.pr_number,
+            "pr_head_oid": policy.pr_head_oid,
+            "expected_main_oid": policy.expected_main_oid,
+            "operation": policy.operation,
+            "required_check_contract_digest": policy.required_check_contract_digest,
+            "required_checks": list(policy.required_checks),
+            "owner_identity": policy.owner_identity,
+            "audit_lineage_digest": policy.audit_lineage_digest,
+            "policy_version": policy.policy_version,
+            "policy_digest": policy.digest,
+            "signature_namespace": OWNER_NAMESPACE,
+            "signature_key_id": key_id,
+        }
+        if payload.get("pr_head_oid") != policy.pr_head_oid:
+            _fail("OWNER_MERGE_APPROVAL_HEAD_BINDING_INVALID")
+        if payload.get("expected_main_oid") != policy.expected_main_oid:
+            _fail("OWNER_MERGE_APPROVAL_BASE_BINDING_INVALID")
+        if payload.get("policy_digest") != policy.digest:
+            _fail("OWNER_MERGE_POLICY_DIGEST_DRIFT")
+        if namespace != OWNER_NAMESPACE or any(payload.get(key) != value for key, value in expected.items()):
+            _fail("OWNER_MERGE_APPROVAL_SCOPE_INVALID")
+        for field in ("approval_id", "nonce"):
+            if not isinstance(payload.get(field), str) or TOKEN_RE.fullmatch(payload[field]) is None:
+                _fail("OWNER_MERGE_APPROVAL_TOKEN_INVALID")
+        for field in ("issued_at", "not_before", "expires_at"):
+            if type(payload.get(field)) is not int:
+                _fail("OWNER_MERGE_APPROVAL_TIME_INVALID")
+        if not payload["not_before"] <= now < payload["expires_at"]:
+            _fail("OWNER_MERGE_APPROVAL_EXPIRED")
+        if payload["issued_at"] > now + 5 or payload["expires_at"] - payload["issued_at"] != policy.maximum_ttl_seconds:
+            _fail("OWNER_MERGE_APPROVAL_TIME_INVALID")
+        supplied = payload.get("canonical_payload_digest")
+        body = dict(payload)
+        body.pop("canonical_payload_digest", None)
+        if supplied != sha256_json(body):
+            _fail("OWNER_MERGE_APPROVAL_CANONICAL_DIGEST_INVALID")
+
+    def verify(
+        self,
+        artifact: SignedArtifact | Mapping[str, Any],
+        policy: OwnerMergeApprovalPolicy,
+    ) -> tuple[dict[str, Any], str]:
+        policy.validate()
+        payload, signature, key_id, namespace = self._artifact(artifact)
+        canonical = canonical_json_bytes(payload)
+        proof_path: str | None = None
+        for path, verifier in (("primary", self.primary), ("recovery", self.recovery)):
+            if verifier is None:
+                continue
+            try:
+                verified = verifier.verify(
+                    namespace=namespace,
+                    payload=canonical,
+                    signature=signature,
+                    key_id=key_id,
+                )
+            except Exception:
+                verified = False
+            if verified is True:
+                proof_path = path
+                break
+        if proof_path is None:
+            _fail("OWNER_MERGE_APPROVAL_SIGNATURE_INVALID")
+        self._validate_scope(payload, policy, now=int(self.clock()), key_id=key_id, namespace=namespace)
+        return payload, proof_path
+
+
+class SQLiteOwnerMergeNonceLedger:
+    """Durable one-shot fence.  Unknown effects are intentionally not retried."""
+
+    def __init__(self, path: Path) -> None:
+        self.path = Path(path)
+
+    def _connection(self) -> sqlite3.Connection:
+        if self.path.is_symlink() or self.path.parent.is_symlink():
+            _fail("OWNER_MERGE_NONCE_LEDGER_PATH_INVALID")
+        self.path.parent.mkdir(parents=True, exist_ok=True, mode=0o700)
+        connection = sqlite3.connect(self.path, timeout=5, isolation_level=None)
+        connection.execute(
+            "CREATE TABLE IF NOT EXISTS owner_merge_nonce ("
+            "nonce TEXT PRIMARY KEY, approval_digest TEXT NOT NULL, state TEXT NOT NULL, claimed_at INTEGER NOT NULL)"
+        )
+        return connection
+
+    def claim(self, *, nonce: str, approval_digest: str, now: int) -> None:
+        connection = self._connection()
+        try:
+            connection.execute("BEGIN IMMEDIATE")
+            existing = connection.execute(
+                "SELECT state FROM owner_merge_nonce WHERE nonce=?", (nonce,)
+            ).fetchone()
+            if existing is not None:
+                connection.rollback()
+                _fail("OWNER_MERGE_NONCE_REPLAY")
+            connection.execute(
+                "INSERT INTO owner_merge_nonce(nonce,approval_digest,state,claimed_at) VALUES(?,?,?,?)",
+                (nonce, approval_digest, "PENDING", now),
+            )
+            connection.commit()
+        except OwnerMergeApprovalError:
+            raise
+        except sqlite3.Error as exc:
+            try:
+                connection.rollback()
+            except sqlite3.Error:
+                pass
+            raise OwnerMergeApprovalError("OWNER_MERGE_NONCE_LEDGER_UNAVAILABLE") from exc
+        finally:
+            connection.close()
+
+    def mark(self, *, nonce: str, state: str) -> None:
+        if state not in {"COMPLETED", "UNKNOWN"}:
+            _fail("OWNER_MERGE_NONCE_STATE_INVALID")
+        connection = self._connection()
+        try:
+            connection.execute("BEGIN IMMEDIATE")
+            updated = connection.execute(
+                "UPDATE owner_merge_nonce SET state=? WHERE nonce=? AND state='PENDING'",
+                (state, nonce),
+            ).rowcount
+            if updated != 1:
+                connection.rollback()
+                _fail("OWNER_MERGE_NONCE_STATE_CONFLICT")
+            connection.commit()
+        except OwnerMergeApprovalError:
+            raise
+        except sqlite3.Error as exc:
+            try:
+                connection.rollback()
+            except sqlite3.Error:
+                pass
+            raise OwnerMergeApprovalError("OWNER_MERGE_NONCE_LEDGER_UNAVAILABLE") from exc
+        finally:
+            connection.close()
+
+
+class GovernedOwnerMergeAdmission:
+    """Admit one protected merge without owning any policy or technical gate."""
+
+    def __init__(
+        self,
+        *,
+        policy: OwnerMergeApprovalPolicy,
+        verifier: OwnerMergeApprovalVerifier,
+        live_state_reader: Callable[[], OwnerMergeLiveState],
+        executor: GovernedMergeExecutor,
+        reconciler: MergeOidReconciler,
+        nonce_ledger: SQLiteOwnerMergeNonceLedger,
+        clock: Callable[[], float] = time.time,
+    ) -> None:
+        policy.validate()
+        self.policy = policy
+        self.verifier = verifier
+        self.live_state_reader = live_state_reader
+        self.executor = executor
+        self.reconciler = reconciler
+        self.nonce_ledger = nonce_ledger
+        self.clock = clock
+
+    def _validate_live_state(self, live: OwnerMergeLiveState) -> None:
+        if not isinstance(live, OwnerMergeLiveState):
+            _fail("OWNER_MERGE_LIVE_STATE_INVALID")
+        policy = self.policy
+        if live.repository != policy.repository:
+            _fail("OWNER_MERGE_REPOSITORY_DRIFT")
+        if live.pr_number != policy.pr_number:
+            _fail("OWNER_MERGE_PR_BINDING_DRIFT")
+        if live.pr_head_oid != policy.pr_head_oid:
+            _fail("OWNER_MERGE_HEAD_DRIFT")
+        if live.main_oid != policy.expected_main_oid:
+            _fail("OWNER_MERGE_BASE_DRIFT")
+        if live.required_check_contract_digest != policy.required_check_contract_digest:
+            _fail("OWNER_MERGE_REQUIRED_CHECK_CONTRACT_DRIFT")
+        if not isinstance(live.check_statuses, Mapping) or set(live.check_statuses) != set(policy.required_checks):
+            _fail("OWNER_MERGE_REQUIRED_CHECK_CONTRACT_DRIFT")
+        if any(value is not True for value in live.check_statuses.values()):
+            _fail("OWNER_MERGE_REQUIRED_CHECKS_FAILED")
+
+    def admit(self, artifact: SignedArtifact | Mapping[str, Any]) -> OwnerMergeAdmissionReceipt:
+        approval, proof_path = self.verifier.verify(artifact, self.policy)
+        self._validate_live_state(self.live_state_reader())
+        nonce = str(approval["nonce"])
+        approval_digest = hashlib.sha256(canonical_json_bytes(approval)).hexdigest()
+        self.nonce_ledger.claim(nonce=nonce, approval_digest=approval_digest, now=int(self.clock()))
+        try:
+            merge_oid = self.executor.execute(dict(approval))
+            _require_oid(merge_oid, "OWNER_MERGE_EXECUTOR_RESULT_INVALID")
+            readback = self.reconciler.readback(merge_oid)
+            if (
+                not isinstance(readback, OwnerMergeOidReadback)
+                or readback.authority_main_oid != merge_oid
+                or readback.gitea_main_oid != merge_oid
+                or readback.api_main_oid != merge_oid
+            ):
+                self.nonce_ledger.mark(nonce=nonce, state="UNKNOWN")
+                _fail("OWNER_MERGE_OID_RECONCILIATION_REQUIRED")
+        except OwnerMergeApprovalError:
+            # Every failure after a durable claim represents an operation that
+            # is either known failed or needs reconciliation.  Preserve the
+            # one-shot fence rather than exposing a retryable PENDING state.
+            try:
+                self.nonce_ledger.mark(nonce=nonce, state="UNKNOWN")
+            except OwnerMergeApprovalError:
+                pass
+            raise
+        except Exception as exc:
+            try:
+                self.nonce_ledger.mark(nonce=nonce, state="UNKNOWN")
+            except OwnerMergeApprovalError:
+                pass
+            raise OwnerMergeApprovalError("OWNER_MERGE_EXECUTION_UNKNOWN") from exc
+        self.nonce_ledger.mark(nonce=nonce, state="COMPLETED")
+        return OwnerMergeAdmissionReceipt(
+            approval_id=str(approval["approval_id"]),
+            nonce=nonce,
+            owner_identity=str(approval["owner_identity"]),
+            policy_digest=str(approval["policy_digest"]),
+            proof_path=proof_path,
+            merge_oid=merge_oid,
+        )

active-runtime/app/aios_owner_merge_authorization_server.py

@@ -0,0 +1,287 @@
+"""Restricted issuance service for ``aios.owner-merge-approval.v2``.
+
+The service has one Owner-only operation.  It accepts an empty request payload,
+loads one immutable policy, generates approval identifiers and nonces itself,
+and stores one exact issuance response.  It deliberately does not expose a
+generic signing, payload, or policy-selection API.
+"""
+from __future__ import annotations
+
+import json
+import os
+from pathlib import Path
+import sqlite3
+import stat
+import time
+from typing import Any, Callable, Mapping
+
+from aios_owner_merge_authorization import (
+    OwnerMergeApprovalAuthority,
+    OwnerMergeApprovalError,
+    OwnerMergeApprovalPolicy,
+    OwnerMergeApprovalVerifier,
+)
+from aios_single_host_authority import RegistryOwnerApprovalVerifier, SignedArtifact
+
+
+ISSUE_OPERATION = "issue_owner_merge_approval"
+
+
+def _fail(code: str) -> None:
+    raise OwnerMergeApprovalError(code)
+
+
+def _secure_regular(path: Path, *, require_root_owner: bool) -> None:
+    try:
+        metadata = path.lstat()
+    except OSError as exc:
+        raise OwnerMergeApprovalError("OWNER_MERGE_ISSUER_FILE_MISSING") from exc
+    if path.is_symlink() or not stat.S_ISREG(metadata.st_mode):
+        _fail("OWNER_MERGE_ISSUER_FILE_INVALID")
+    if stat.S_IMODE(metadata.st_mode) & 0o022:
+        _fail("OWNER_MERGE_ISSUER_FILE_WRITABLE")
+    if require_root_owner and metadata.st_uid != 0:
+        _fail("OWNER_MERGE_ISSUER_FILE_NOT_ROOT_OWNED")
+
+
+def _read_policy(path: Path, *, require_root_owner: bool) -> OwnerMergeApprovalPolicy:
+    _secure_regular(path, require_root_owner=require_root_owner)
+    try:
+        value = json.loads(path.read_text(encoding="utf-8"))
+    except (OSError, UnicodeDecodeError, json.JSONDecodeError) as exc:
+        raise OwnerMergeApprovalError("OWNER_MERGE_ISSUER_POLICY_INVALID") from exc
+    if not isinstance(value, Mapping):
+        _fail("OWNER_MERGE_ISSUER_POLICY_INVALID")
+    expected = set(OwnerMergeApprovalPolicy.__dataclass_fields__)
+    if set(value) != expected or not isinstance(value.get("required_checks"), list):
+        _fail("OWNER_MERGE_ISSUER_POLICY_INVALID")
+    try:
+        policy = OwnerMergeApprovalPolicy(
+            repository=value["repository"],
+            pr_number=value["pr_number"],
+            pr_head_oid=value["pr_head_oid"],
+            expected_main_oid=value["expected_main_oid"],
+            operation=value["operation"],
+            required_check_contract_digest=value["required_check_contract_digest"],
+            required_checks=tuple(value["required_checks"]),
+            owner_identity=value["owner_identity"],
+            audit_lineage_digest=value["audit_lineage_digest"],
+            maximum_ttl_seconds=value["maximum_ttl_seconds"],
+            policy_version=value["policy_version"],
+            schema=value["schema"],
+        )
+        policy.validate()
+    except (KeyError, TypeError, OwnerMergeApprovalError) as exc:
+        if isinstance(exc, OwnerMergeApprovalError):
+            raise OwnerMergeApprovalError("OWNER_MERGE_ISSUER_POLICY_INVALID") from exc
+        raise OwnerMergeApprovalError("OWNER_MERGE_ISSUER_POLICY_INVALID") from exc
+    return policy
+
+
+def _artifact_dict(artifact: SignedArtifact) -> dict[str, Any]:
+    return {
+        "payload": dict(artifact.payload),
+        "signature": artifact.signature,
+        "key_id": artifact.key_id,
+        "namespace": artifact.namespace,
+    }
+
+
+class SQLiteOwnerMergeIssuanceLedger:
+    """Durably replay a current approval and retain expired issuance history."""
+
+    def __init__(self, path: Path) -> None:
+        self.path = Path(path)
+
+    def _connect(self) -> sqlite3.Connection:
+        if self.path.is_symlink() or self.path.parent.is_symlink():
+            _fail("OWNER_MERGE_ISSUER_LEDGER_PATH_INVALID")
+        self.path.parent.mkdir(parents=True, exist_ok=True, mode=0o700)
+        connection = sqlite3.connect(self.path, timeout=5, isolation_level=None)
+        connection.execute(
+            "CREATE TABLE IF NOT EXISTS owner_merge_issuance ("
+            "nonce TEXT PRIMARY KEY, policy_digest TEXT NOT NULL, response_json TEXT NOT NULL, "
+            "issued_at INTEGER NOT NULL, expires_at INTEGER NOT NULL)"
+        )
+        connection.execute(
+            "CREATE INDEX IF NOT EXISTS owner_merge_issuance_policy_expiry "
+            "ON owner_merge_issuance(policy_digest, expires_at)"
+        )
+        return connection
+
+    def issue_once(
+        self,
+        *,
+        policy_digest: str,
+        now: int,
+        issuer: Callable[[], dict[str, Any]],
+        validate_current: Callable[[dict[str, Any]], None],
+        expiry_of: Callable[[dict[str, Any]], int],
+    ) -> tuple[dict[str, Any], bool]:
+        connection = self._connect()
+        try:
+            connection.execute("BEGIN IMMEDIATE")
+            rows = connection.execute(
+                "SELECT response_json, expires_at FROM owner_merge_issuance "
+                "WHERE policy_digest=? AND expires_at>? ORDER BY issued_at DESC",
+                (policy_digest, now),
+            ).fetchall()
+            if len(rows) > 1:
+                connection.rollback()
+                _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+            if rows:
+                try:
+                    response = json.loads(rows[0][0])
+                except (TypeError, json.JSONDecodeError) as exc:
+                    connection.rollback()
+                    raise OwnerMergeApprovalError("OWNER_MERGE_ISSUER_LEDGER_INVALID") from exc
+                if not isinstance(response, dict):
+                    connection.rollback()
+                    _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+                if type(rows[0][1]) is not int or expiry_of(response) != rows[0][1]:
+                    connection.rollback()
+                    _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+                validate_current(response)
+                connection.rollback()
+                return response, True
+            response = issuer()
+            expires_at = expiry_of(response)
+            if expires_at <= now:
+                connection.rollback()
+                _fail("OWNER_MERGE_ISSUER_RESPONSE_EXPIRED")
+            artifact = response.get("artifact")
+            if not isinstance(artifact, Mapping):
+                connection.rollback()
+                _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+            payload = artifact.get("payload")
+            if not isinstance(payload, Mapping) or not isinstance(payload.get("nonce"), str):
+                connection.rollback()
+                _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+            encoded = json.dumps(
+                response,
+                ensure_ascii=False,
+                sort_keys=True,
+                separators=(",", ":"),
+                allow_nan=False,
+            )
+            connection.execute(
+                "INSERT INTO owner_merge_issuance(nonce,policy_digest,response_json,issued_at,expires_at) "
+                "VALUES(?,?,?,?,?)",
+                (payload["nonce"], policy_digest, encoded, now, expires_at),
+            )
+            connection.commit()
+            return response, False
+        except OwnerMergeApprovalError:
+            raise
+        except sqlite3.IntegrityError as exc:
+            try:
+                connection.rollback()
+            except sqlite3.Error:
+                pass
+            raise OwnerMergeApprovalError("OWNER_MERGE_ISSUER_NONCE_CONFLICT") from exc
+        except sqlite3.Error as exc:
+            try:
+                connection.rollback()
+            except sqlite3.Error:
+                pass
+            raise OwnerMergeApprovalError("OWNER_MERGE_ISSUER_LEDGER_UNAVAILABLE") from exc
+        finally:
+            connection.close()
+
+
+class OwnerMergeApprovalService:
+    """A formal structured adapter, not an arbitrary signing oracle."""
+
+    def __init__(
+        self,
+        *,
+        policy_path: Path,
+        registry_path: Path,
+        owner_key_path: Path,
+        issuance_ledger_path: Path,
+        allowed_uids: tuple[int, ...],
+        require_root_owner: bool = True,
+        clock: Callable[[], float] = time.time,
+        token_urlsafe: Callable[[int], str] | None = None,
+    ) -> None:
+        if not allowed_uids or any(type(uid) is not int or uid < 0 for uid in allowed_uids):
+            _fail("OWNER_MERGE_ISSUER_ALLOWED_UIDS_INVALID")
+        self.policy_path = Path(policy_path)
+        self.registry_path = Path(registry_path)
+        self.owner_key_path = Path(owner_key_path)
+        self.allowed_uids = tuple(allowed_uids)
+        self.require_root_owner = require_root_owner
+        self.clock = clock
+        self.token_urlsafe = token_urlsafe
+        self.ledger = SQLiteOwnerMergeIssuanceLedger(issuance_ledger_path)
+
+    def handle(self, request: Mapping[str, Any], *, peer_uid: int) -> dict[str, Any]:
+        if peer_uid not in self.allowed_uids:
+            _fail("OWNER_MERGE_ISSUER_PEER_UID_FORBIDDEN")
+        if not isinstance(request, Mapping) or set(request) != {"operation", "payload"}:
+            _fail("OWNER_MERGE_ISSUER_REQUEST_INVALID")
+        if request.get("operation") != ISSUE_OPERATION:
+            _fail("OWNER_MERGE_ISSUER_OPERATION_FORBIDDEN")
+        if request.get("payload") != {}:
+            _fail("OWNER_MERGE_ISSUER_REQUEST_FIELDS_INVALID")
+
+        policy = _read_policy(
+            self.policy_path,
+            require_root_owner=self.require_root_owner,
+        )
+        _secure_regular(
+            self.owner_key_path,
+            require_root_owner=self.require_root_owner,
+        )
+        primary = RegistryOwnerApprovalVerifier(
+            self.registry_path,
+            require_root_owner=self.require_root_owner,
+        )
+        verifier = OwnerMergeApprovalVerifier(primary=primary, clock=self.clock)
+
+        def expiry_of(response: dict[str, Any]) -> int:
+            if set(response) != {"status", "artifact"} or response.get("status") != "PASS":
+                _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+            artifact = response.get("artifact")
+            if not isinstance(artifact, Mapping):
+                _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+            payload = artifact.get("payload")
+            if not isinstance(payload, Mapping) or type(payload.get("expires_at")) is not int:
+                _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+            return payload["expires_at"]
+
+        def validate_current(response: dict[str, Any]) -> None:
+            expiry_of(response)
+            artifact = response["artifact"]
+            if not isinstance(artifact, Mapping):
+                _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+            try:
+                verifier.verify(artifact, policy)
+            except OwnerMergeApprovalError as exc:
+                raise OwnerMergeApprovalError("OWNER_MERGE_ISSUER_LEDGER_INVALID") from exc
+
+        def issue() -> dict[str, Any]:
+            kwargs: dict[str, Any] = {}
+            if self.token_urlsafe is not None:
+                kwargs["token_urlsafe"] = self.token_urlsafe
+            artifact = OwnerMergeApprovalAuthority(
+                self.owner_key_path,
+                policy,
+                require_root_owner=self.require_root_owner,
+                clock=self.clock,
+                **kwargs,
+            ).issue()
+            value = _artifact_dict(artifact)
+            verifier.verify(value, policy)
+            return {"status": "PASS", "artifact": value}
+
+        response, idempotent = self.ledger.issue_once(
+            policy_digest=policy.digest,
+            now=int(self.clock()),
+            issuer=issue,
+            validate_current=validate_current,
+            expiry_of=expiry_of,
+        )
+        if set(response) != {"status", "artifact"} or response.get("status") != "PASS":
+            _fail("OWNER_MERGE_ISSUER_LEDGER_INVALID")
+        return {**response, "idempotent": idempotent}

active-runtime/app/aios_repository_discovery.py

@@ -0,0 +1,967 @@
+"""Bounded, read-only discovery over a verified immutable Git repository.
+
+The module is deliberately independent from Task, lease, credential, worktree,
+and write code. Every public operation verifies the exact repository identity,
+resolves a floating ref once to a full commit OID, and then reads only that
+immutable snapshot.
+"""
+from __future__ import annotations
+
+import base64
+from collections.abc import Iterable, Iterator, Mapping
+import fnmatch
+import hashlib
+import hmac
+import json
+import os
+from pathlib import Path
+import re
+import subprocess
+import time
+
+from authoritative_git import AuthoritativeGitError, verify_repository
+
+
+_OID_RE = re.compile(r"^[0-9a-f]{40}$")
+_REF_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._/-]{0,239}$")
+_IDENTITY_RE = re.compile(
+    r"^[A-Za-z0-9][A-Za-z0-9._-]{0,127}/[A-Za-z0-9][A-Za-z0-9._-]{0,127}$"
+)
+_READ_ONLY_COMMANDS = frozenset({"cat-file", "diff", "ls-tree", "rev-parse"})
+_MAX_COMMAND_OUTPUT = 1_048_576
+_MAX_RECORD_BYTES = 1_048_576
+_MAX_LIMIT = 1_000
+_MAX_DEPTH = 32
+_MAX_BYTES = 1_048_576
+_MAX_GLOBS = 16
+_MAX_QUERY_LENGTH = 512
+_MAX_CURSOR_LENGTH = 4_096
+_GIT_TIMEOUT_SECONDS = 8.0
+
+
+class RepositoryDiscoveryError(RuntimeError):
+    """A fail-closed repository discovery request error."""
+
+    def __init__(self, code: str, *, status_code: int | None = None) -> None:
+        self.code = str(code)
+        self.status_code = (
+            status_code if status_code is not None else self._status_for(self.code)
+        )
+        super().__init__(self.code)
+
+    @staticmethod
+    def _status_for(code: str) -> int:
+        if "OUTPUT_LIMIT" in code:
+            return 413
+        if code.endswith("_NOT_FOUND"):
+            return 404
+        if code in {"REPOSITORY_NOT_ALLOWED", "REPOSITORY_IDENTITY_MISMATCH"}:
+            return 403
+        if code in {
+            "REPOSITORY_DISCOVERY_UNAVAILABLE",
+            "REPOSITORY_DISCOVERY_GIT_FAILED",
+            "REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID",
+            "REPOSITORY_DISCOVERY_CURSOR_SECRET_REQUIRED",
+        }:
+            return 503
+        return 400
+
+
+class RepositoryDiscoveryNotFound(RepositoryDiscoveryError):
+    """A validated immutable object or path was not found."""
+
+
+class RepositoryDiscoveryOutputTooLarge(RepositoryDiscoveryError):
+    """A fixed read-only Git query exceeded its collection boundary."""
+
+
+def _error(code: str) -> RepositoryDiscoveryError:
+    return RepositoryDiscoveryError(code)
+
+
+def _request_mapping(request: Mapping[str, object]) -> Mapping[str, object]:
+    if not isinstance(request, Mapping):
+        raise _error("REPOSITORY_DISCOVERY_REQUEST_INVALID")
+    return request
+
+
+def _required_request_value(request: Mapping[str, object], field: str) -> object:
+    value = request.get(field)
+    if value is None:
+        raise _error("REPOSITORY_DISCOVERY_REQUEST_INVALID")
+    return value
+
+
+def _canonical(value: Mapping[str, object]) -> bytes:
+    return json.dumps(
+        value, sort_keys=True, separators=(",", ":"), ensure_ascii=True
+    ).encode("ascii")
+
+
+def _positive_int(value: object, field: str, maximum: int) -> int:
+    if isinstance(value, bool) or not isinstance(value, int) or not 1 <= value <= maximum:
+        raise _error(f"REPOSITORY_DISCOVERY_INVALID_{field.upper()}")
+    return value
+
+
+def _safe_relative_path(
+    value: object,
+    field: str,
+    *,
+    allow_empty: bool,
+    allow_glob: bool = False,
+) -> str:
+    if not isinstance(value, str) or value != value.strip() or "\x00" in value:
+        raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+    if "\\" in value:
+        raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+    if value in ("", "."):
+        if allow_empty:
+            return ""
+        raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+    if value.startswith(("/", "-")) or "//" in value or ":" in value:
+        raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+    if not allow_glob and any(character in value for character in "*?["):
+        raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+    parts = value.split("/")
+    if any(part in ("", ".", "..") for part in parts):
+        raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+    if len(value) > 512:
+        raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+    return value
+
+
+def _safe_glob(value: object) -> str:
+    return _safe_relative_path(value, "path_glob", allow_empty=False, allow_glob=True)
+
+
+def _safe_ref(value: str) -> bool:
+    return bool(
+        _REF_RE.fullmatch(value)
+        and ".." not in value
+        and "//" not in value
+        and "@{" not in value
+        and not value.endswith(("/", ".", ".lock"))
+        and not any(part in ("", ".", "..") for part in value.split("/"))
+    )
+
+
+def _parse_tree_record(record: bytes) -> dict[str, str] | None:
+    try:
+        header, raw_path = record.split(b"\t", 1)
+        mode, kind, oid = header.decode("ascii").split(" ", 2)
+        path = raw_path.decode("utf-8")
+    except (UnicodeDecodeError, ValueError) as exc:
+        raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID") from exc
+    if kind not in {"blob", "tree", "commit"} or not _OID_RE.fullmatch(oid.lower()):
+        raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID")
+    try:
+        _safe_relative_path(path, "tree_path", allow_empty=False)
+    except RepositoryDiscoveryError:
+        # Git permits filenames outside the public POSIX-relative contract.
+        # They are not exposed as usable discovery paths.
+        return None
+    return {"mode": mode, "type": kind, "object_oid": oid.lower(), "path": path}
+
+
+def _decode_output_path(raw: bytes) -> str:
+    try:
+        value = raw.decode("utf-8")
+    except UnicodeDecodeError as exc:
+        raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID") from exc
+    return _safe_relative_path(value, "git_output_path", allow_empty=False)
+
+
+class RepositoryDiscovery:
+    """Repository-scoped immutable Git discovery with signed cursors."""
+
+    def __init__(
+        self,
+        *,
+        allowed_repositories: Iterable[str] | None = None,
+        git_dir: str | Path | None = None,
+        cursor_secret: str | bytes | None = None,
+    ) -> None:
+        configured = allowed_repositories
+        if configured is None:
+            configured = (os.getenv("AIOS_GITOPS_REPOSITORY_IDENTITY", ""),)
+        identities = tuple(configured)
+        if not identities or any(
+            not isinstance(item, str) or not _IDENTITY_RE.fullmatch(item)
+            for item in identities
+        ):
+            raise _error("REPOSITORY_DISCOVERY_ALLOWLIST_INVALID")
+        self._allowed_repositories = frozenset(identities)
+        self._git_dir = git_dir
+        secret = (
+            cursor_secret
+            if cursor_secret is not None
+            else os.getenv("AIOS_REPOSITORY_DISCOVERY_CURSOR_SECRET", "")
+        )
+        if isinstance(secret, str):
+            secret = secret.encode("utf-8")
+        if not isinstance(secret, bytes) or len(secret) < 16:
+            raise _error("REPOSITORY_DISCOVERY_CURSOR_SECRET_REQUIRED")
+        self._cursor_secret = secret
+
+    def _repository_path(self, repository: object) -> Path:
+        if not isinstance(repository, str) or repository not in self._allowed_repositories:
+            raise _error("REPOSITORY_NOT_ALLOWED")
+        try:
+            path, actual_identity = verify_repository(
+                git_dir=self._git_dir,
+                repository_identity=repository,
+            )
+        except AuthoritativeGitError as exc:
+            code = (
+                "REPOSITORY_IDENTITY_MISMATCH"
+                if "REPOSITORY_IDENTITY_MISMATCH" in str(exc)
+                else "REPOSITORY_DISCOVERY_UNAVAILABLE"
+            )
+            raise _error(code) from exc
+        if actual_identity != repository:
+            raise _error("REPOSITORY_IDENTITY_MISMATCH")
+        return path
+
+    @staticmethod
+    def _git_env() -> dict[str, str]:
+        return {
+            **os.environ,
+            "GIT_OPTIONAL_LOCKS": "0",
+            "GIT_CONFIG_NOSYSTEM": "1",
+            "GIT_TERMINAL_PROMPT": "0",
+        }
+
+    @staticmethod
+    def _run(
+        path: Path,
+        args: list[str],
+        *,
+        max_output: int = _MAX_COMMAND_OUTPUT,
+    ) -> bytes:
+        if not args or args[0] not in _READ_ONLY_COMMANDS:
+            raise _error("REPOSITORY_DISCOVERY_GIT_COMMAND_REJECTED")
+        output_limit = min(max_output, _MAX_COMMAND_OUTPUT)
+        process: subprocess.Popen[bytes] | None = None
+        try:
+            process = subprocess.Popen(
+                ["git", "--git-dir", str(path), *args],
+                shell=False,
+                stdout=subprocess.PIPE,
+                stderr=subprocess.DEVNULL,
+                env=RepositoryDiscovery._git_env(),
+            )
+            assert process.stdout is not None
+            output = process.stdout.read(output_limit + 1)
+            if len(output) > output_limit:
+                process.kill()
+                process.wait(timeout=1)
+                raise RepositoryDiscoveryOutputTooLarge(
+                    "REPOSITORY_DISCOVERY_OUTPUT_LIMIT"
+                )
+            returncode = process.wait(timeout=_GIT_TIMEOUT_SECONDS)
+        except RepositoryDiscoveryError:
+            raise
+        except (OSError, subprocess.TimeoutExpired) as exc:
+            if process is not None:
+                try:
+                    process.kill()
+                    process.wait(timeout=1)
+                except (OSError, subprocess.TimeoutExpired):
+                    pass
+            raise _error("REPOSITORY_DISCOVERY_GIT_FAILED") from exc
+        if returncode != 0:
+            raise _error("REPOSITORY_DISCOVERY_GIT_FAILED")
+        return output
+
+    @staticmethod
+    def _read_blob_prefix(path: Path, oid: str, maximum: int) -> tuple[bytes, bool]:
+        """Read at most maximum bytes plus one sentinel byte."""
+        process: subprocess.Popen[bytes] | None = None
+        try:
+            process = subprocess.Popen(
+                ["git", "--git-dir", str(path), "cat-file", "blob", oid],
+                shell=False,
+                stdout=subprocess.PIPE,
+                stderr=subprocess.DEVNULL,
+                env=RepositoryDiscovery._git_env(),
+            )
+            assert process.stdout is not None
+            content = process.stdout.read(maximum + 1)
+            truncated = len(content) > maximum
+            if truncated:
+                process.kill()
+                process.wait(timeout=1)
+                return content[:maximum], True
+            if process.wait(timeout=_GIT_TIMEOUT_SECONDS) != 0:
+                raise _error("REPOSITORY_DISCOVERY_GIT_FAILED")
+            return content, False
+        except RepositoryDiscoveryError:
+            raise
+        except (OSError, subprocess.TimeoutExpired) as exc:
+            if process is not None:
+                try:
+                    process.kill()
+                    process.wait(timeout=1)
+                except (OSError, subprocess.TimeoutExpired):
+                    pass
+            raise _error("REPOSITORY_DISCOVERY_GIT_FAILED") from exc
+
+    def _iter_nul_records(self, path: Path, args: list[str]) -> Iterator[bytes]:
+        if not args or args[0] not in _READ_ONLY_COMMANDS:
+            raise _error("REPOSITORY_DISCOVERY_GIT_COMMAND_REJECTED")
+        process: subprocess.Popen[bytes] | None = None
+        buffer = b""
+        started = time.monotonic()
+        try:
+            process = subprocess.Popen(
+                ["git", "--git-dir", str(path), *args],
+                shell=False,
+                stdout=subprocess.PIPE,
+                stderr=subprocess.DEVNULL,
+                env=self._git_env(),
+            )
+            assert process.stdout is not None
+            while True:
+                if time.monotonic() - started > _GIT_TIMEOUT_SECONDS:
+                    raise _error("REPOSITORY_DISCOVERY_GIT_FAILED")
+                chunk = process.stdout.read(64 * 1024)
+                if not chunk:
+                    break
+                buffer += chunk
+                if len(buffer) > _MAX_RECORD_BYTES and b"\0" not in buffer:
+                    raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID")
+                while b"\0" in buffer:
+                    record, buffer = buffer.split(b"\0", 1)
+                    if len(record) > _MAX_RECORD_BYTES:
+                        raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID")
+                    yield record
+            if buffer:
+                raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID")
+            if process.wait(
+                timeout=max(0.1, _GIT_TIMEOUT_SECONDS - (time.monotonic() - started))
+            ) != 0:
+                raise _error("REPOSITORY_DISCOVERY_GIT_FAILED")
+        except RepositoryDiscoveryError:
+            raise
+        except (OSError, subprocess.TimeoutExpired) as exc:
+            raise _error("REPOSITORY_DISCOVERY_GIT_FAILED") from exc
+        finally:
+            if process is not None and process.poll() is None:
+                try:
+                    process.kill()
+                    process.wait(timeout=1)
+                except (OSError, subprocess.TimeoutExpired):
+                    pass
+
+    def _resolve_at(self, path: Path, revision: object, field: str) -> str:
+        if (
+            not isinstance(revision, str)
+            or revision != revision.strip()
+            or not revision
+            or revision.startswith("-")
+        ):
+            raise _error("REPOSITORY_DISCOVERY_INVALID_REVISION")
+        if _OID_RE.fullmatch(revision.lower()):
+            candidates = [revision.lower()]
+        elif revision == "HEAD":
+            candidates = ["HEAD"]
+        elif _safe_ref(revision) and not any(
+            token in revision for token in ("^", "~", ":", "\\")
+        ):
+            if revision.startswith("refs/"):
+                if not revision.startswith(("refs/heads/", "refs/tags/")):
+                    raise _error("REPOSITORY_DISCOVERY_INVALID_REVISION")
+                candidates = [revision]
+            else:
+                candidates = [f"refs/heads/{revision}", f"refs/tags/{revision}"]
+        else:
+            raise _error("REPOSITORY_DISCOVERY_INVALID_REVISION")
+        resolved: list[str] = []
+        for candidate in candidates:
+            try:
+                output = self._run(
+                    path,
+                    ["rev-parse", "--verify", f"{candidate}^{{commit}}"],
+                    max_output=256,
+                )
+            except RepositoryDiscoveryError:
+                continue
+            oid = output.decode("ascii", errors="ignore").strip().lower()
+            if _OID_RE.fullmatch(oid):
+                resolved.append(oid)
+        if not resolved:
+            raise RepositoryDiscoveryNotFound(
+                f"REPOSITORY_DISCOVERY_{field.upper()}_NOT_FOUND"
+            )
+        if len(set(resolved)) != 1:
+            raise _error("REPOSITORY_DISCOVERY_AMBIGUOUS_REVISION")
+        return resolved[0]
+
+    def resolve_revision(self, repository: str, revision: str) -> str:
+        return self._resolve_at(self._repository_path(repository), revision, "revision")
+
+    def _cursor_offset(
+        self,
+        cursor: str | None,
+        *,
+        operation: str,
+        repository: str,
+        resolved_oid: str,
+        query: Mapping[str, object],
+    ) -> int:
+        if cursor is None:
+            return 0
+        if (
+            not isinstance(cursor, str)
+            or not cursor
+            or len(cursor) > _MAX_CURSOR_LENGTH
+            or "." not in cursor
+        ):
+            raise _error("REPOSITORY_DISCOVERY_CURSOR_INVALID")
+        encoded, supplied_signature = cursor.split(".", 1)
+        try:
+            padded = encoded + "=" * (-len(encoded) % 4)
+            payload = json.loads(
+                base64.urlsafe_b64decode(padded.encode("ascii")).decode("ascii")
+            )
+        except (UnicodeError, ValueError, json.JSONDecodeError) as exc:
+            raise _error("REPOSITORY_DISCOVERY_CURSOR_INVALID") from exc
+        expected_signature = hmac.new(
+            self._cursor_secret, encoded.encode("ascii"), hashlib.sha256
+        ).hexdigest()
+        if not hmac.compare_digest(supplied_signature, expected_signature):
+            raise _error("REPOSITORY_DISCOVERY_CURSOR_INVALID")
+        expected = {
+            "operation": operation,
+            "repository": repository,
+            "resolved_oid": resolved_oid,
+            "query": dict(query),
+        }
+        if (
+            not isinstance(payload, dict)
+            or payload.get("v") != 1
+            or any(payload.get(key) != value for key, value in expected.items())
+        ):
+            raise _error("REPOSITORY_DISCOVERY_CURSOR_INVALID")
+        offset = payload.get("offset")
+        if isinstance(offset, bool) or not isinstance(offset, int) or offset < 0:
+            raise _error("REPOSITORY_DISCOVERY_CURSOR_INVALID")
+        return offset
+
+    def _next_cursor(
+        self,
+        *,
+        operation: str,
+        repository: str,
+        resolved_oid: str,
+        query: Mapping[str, object],
+        offset: int,
+    ) -> str:
+        payload = {
+            "v": 1,
+            "operation": operation,
+            "repository": repository,
+            "resolved_oid": resolved_oid,
+            "query": dict(query),
+            "offset": offset,
+        }
+        encoded = base64.urlsafe_b64encode(_canonical(payload)).decode("ascii").rstrip("=")
+        signature = hmac.new(
+            self._cursor_secret, encoded.encode("ascii"), hashlib.sha256
+        ).hexdigest()
+        return f"{encoded}.{signature}"
+
+    def _iter_tree_entries(
+        self,
+        path: Path,
+        oid: str,
+        prefix: str,
+        *,
+        include_trees: bool,
+    ) -> Iterator[dict[str, str]]:
+        args = ["ls-tree", "-z", "-r", "--full-tree"]
+        if include_trees:
+            args.append("-t")
+        args.append(oid)
+        if prefix:
+            args.extend(["--", prefix])
+        for record in self._iter_nul_records(path, args):
+            entry = _parse_tree_record(record)
+            if entry is None:
+                continue
+            if not prefix or entry["path"] == prefix or entry["path"].startswith(prefix + "/"):
+                yield entry
+
+    def list_tree(
+        self,
+        *,
+        repository: str,
+        revision: str,
+        prefix: str = "",
+        depth: int = 8,
+        limit: int = 100,
+        cursor: str | None = None,
+    ) -> dict[str, object]:
+        prefix = _safe_relative_path(prefix, "prefix", allow_empty=True)
+        depth = _positive_int(depth, "depth", _MAX_DEPTH)
+        limit = _positive_int(limit, "limit", _MAX_LIMIT)
+        path = self._repository_path(repository)
+        resolved_oid = self._resolve_at(path, revision, "revision")
+        query = {"prefix": prefix, "depth": depth, "limit": limit}
+        offset = self._cursor_offset(
+            cursor,
+            operation="list_tree",
+            repository=repository,
+            resolved_oid=resolved_oid,
+            query=query,
+        )
+        page: list[dict[str, str]] = []
+        matched = 0
+        for entry in self._iter_tree_entries(path, resolved_oid, prefix, include_trees=True):
+            relative = entry["path"][len(prefix):].lstrip("/") if prefix else entry["path"]
+            if relative.count("/") + 1 > depth:
+                continue
+            if matched >= offset and len(page) < limit:
+                page.append(entry)
+            matched += 1
+        has_more = offset + len(page) < matched
+        return {
+            "repository": repository,
+            "resolved_oid": resolved_oid,
+            "entries": page,
+            "truncated": has_more,
+            "next_cursor": (
+                self._next_cursor(
+                    operation="list_tree",
+                    repository=repository,
+                    resolved_oid=resolved_oid,
+                    query=query,
+                    offset=offset + len(page),
+                )
+                if has_more
+                else None
+            ),
+        }
+
+    def list_repository_tree(self, request: Mapping[str, object]) -> dict[str, object]:
+        request = _request_mapping(request)
+        return self.list_tree(
+            repository=_required_request_value(request, "repository"),  # type: ignore[arg-type]
+            revision=request.get("revision", request.get("ref", "HEAD")),  # type: ignore[arg-type]
+            prefix=request.get("prefix", ""),  # type: ignore[arg-type]
+            depth=request.get("depth", 8),  # type: ignore[arg-type]
+            limit=request.get("limit", 100),  # type: ignore[arg-type]
+            cursor=request.get("cursor"),  # type: ignore[arg-type]
+        )
+
+    def _blob_size(self, path: Path, oid: str) -> int:
+        output = self._run(path, ["cat-file", "-s", oid], max_output=128)
+        try:
+            size = int(output.decode("ascii").strip())
+        except (UnicodeDecodeError, ValueError) as exc:
+            raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID") from exc
+        if size < 0:
+            raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID")
+        return size
+
+    def search_source(
+        self,
+        *,
+        repository: str,
+        revision: str,
+        query: str,
+        path_globs: Iterable[str] | None = None,
+        max_matches: int = 100,
+        max_bytes: int = 262_144,
+        cursor: str | None = None,
+    ) -> dict[str, object]:
+        if (
+            not isinstance(query, str)
+            or not query
+            or "\x00" in query
+            or len(query) > _MAX_QUERY_LENGTH
+        ):
+            raise _error("REPOSITORY_DISCOVERY_QUERY_INVALID")
+        max_matches = _positive_int(max_matches, "max_matches", _MAX_LIMIT)
+        max_bytes = _positive_int(max_bytes, "max_bytes", _MAX_BYTES)
+        if path_globs is None:
+            globs = ("*",)
+        else:
+            if isinstance(path_globs, (str, bytes)) or not isinstance(path_globs, Iterable):
+                raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+            globs = tuple(_safe_glob(item) for item in path_globs)
+        if not globs or len(globs) > _MAX_GLOBS:
+            raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+        path = self._repository_path(repository)
+        resolved_oid = self._resolve_at(path, revision, "revision")
+        query_binding = {
+            "query": query,
+            "path_globs": list(globs),
+            "max_matches": max_matches,
+            "max_bytes": max_bytes,
+        }
+        offset = self._cursor_offset(
+            cursor,
+            operation="search_source",
+            repository=repository,
+            resolved_oid=resolved_oid,
+            query=query_binding,
+        )
+        scanned_bytes = 0
+        skipped_for_bound = False
+        binary_blobs = 0
+        matched = 0
+        matches: list[dict[str, object]] = []
+        has_more = False
+        for entry in self._iter_tree_entries(path, resolved_oid, "", include_trees=False):
+            if entry["type"] != "blob" or not any(
+                fnmatch.fnmatchcase(entry["path"], pattern) for pattern in globs
+            ):
+                continue
+            blob_size = self._blob_size(path, entry["object_oid"])
+            remaining = max_bytes - scanned_bytes
+            if blob_size > remaining:
+                skipped_for_bound = True
+                continue
+            raw, clipped = self._read_blob_prefix(path, entry["object_oid"], blob_size)
+            if clipped:
+                raise _error("REPOSITORY_DISCOVERY_GIT_FAILED")
+            scanned_bytes += len(raw)
+            if b"\0" in raw:
+                binary_blobs += 1
+                continue
+            text = raw.decode("utf-8", errors="replace")
+            for number, line in enumerate(text.splitlines(), start=1):
+                if query not in line:
+                    continue
+                if matched < offset:
+                    matched += 1
+                    continue
+                if len(matches) >= max_matches:
+                    has_more = True
+                    break
+                matches.append(
+                    {
+                        "path": entry["path"],
+                        "line_start": number,
+                        "line_end": number,
+                        "blob_oid": entry["object_oid"],
+                        "snippet": line[:512],
+                    }
+                )
+                matched += 1
+            if has_more:
+                break
+        return {
+            "repository": repository,
+            "resolved_oid": resolved_oid,
+            "matches": matches,
+            "scanned_bytes": scanned_bytes,
+            "max_bytes": max_bytes,
+            "binary_blobs_skipped": binary_blobs,
+            "truncated": bool(has_more or skipped_for_bound),
+            "next_cursor": (
+                self._next_cursor(
+                    operation="search_source",
+                    repository=repository,
+                    resolved_oid=resolved_oid,
+                    query=query_binding,
+                    offset=offset + len(matches),
+                )
+                if has_more
+                else None
+            ),
+        }
+
+    def search_repository_source(self, request: Mapping[str, object]) -> dict[str, object]:
+        request = _request_mapping(request)
+        path_globs = request.get("path_globs")
+        if path_globs is not None and (
+            isinstance(path_globs, (str, bytes)) or not isinstance(path_globs, Iterable)
+        ):
+            raise _error("REPOSITORY_DISCOVERY_PATH_INVALID")
+        return self.search_source(
+            repository=_required_request_value(request, "repository"),  # type: ignore[arg-type]
+            revision=request.get("revision", request.get("ref", "HEAD")),  # type: ignore[arg-type]
+            query=_required_request_value(request, "query"),  # type: ignore[arg-type]
+            path_globs=path_globs,  # type: ignore[arg-type]
+            max_matches=request.get("max_matches", 100),  # type: ignore[arg-type]
+            max_bytes=request.get("max_bytes", 262_144),  # type: ignore[arg-type]
+            cursor=request.get("cursor"),  # type: ignore[arg-type]
+        )
+
+    def _iter_diff_name_entries(
+        self,
+        path: Path,
+        from_oid: str,
+        to_oid: str,
+        prefix: str,
+    ) -> Iterator[dict[str, object]]:
+        suffix = ["--", prefix] if prefix else []
+        records = self._iter_nul_records(
+            path,
+            [
+                "diff",
+                "--no-ext-diff",
+                "--no-textconv",
+                "--find-renames=50%",
+                "--name-status",
+                "-z",
+                from_oid,
+                to_oid,
+                *suffix,
+            ],
+        )
+        iterator = iter(records)
+        while True:
+            try:
+                status_raw = next(iterator)
+            except StopIteration:
+                return
+            try:
+                status = status_raw.decode("ascii")
+            except UnicodeDecodeError as exc:
+                raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID") from exc
+            if not status or status[0] not in {"A", "C", "D", "M", "R", "T", "U", "X"}:
+                raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID")
+            try:
+                if status[0] in {"R", "C"}:
+                    old_path = _decode_output_path(next(iterator))
+                    new_path = _decode_output_path(next(iterator))
+                    yield {
+                        "status": status,
+                        "path": new_path,
+                        "old_path": old_path,
+                    }
+                else:
+                    yield {
+                        "status": status,
+                        "path": _decode_output_path(next(iterator)),
+                        "old_path": None,
+                    }
+            except StopIteration as exc:
+                raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID") from exc
+
+    @staticmethod
+    def _parse_numstat_count(value: bytes) -> int | None:
+        if value == b"-":
+            return None
+        try:
+            parsed = int(value.decode("ascii"), 10)
+        except (UnicodeDecodeError, ValueError) as exc:
+            raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID") from exc
+        if parsed < 0:
+            raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID")
+        return parsed
+
+    def _diff_stats(
+        self,
+        path: Path,
+        from_oid: str,
+        to_oid: str,
+        prefix: str,
+        wanted_paths: set[str],
+    ) -> dict[str, tuple[int | None, int | None]]:
+        suffix = ["--", prefix] if prefix else []
+        records = self._iter_nul_records(
+            path,
+            [
+                "diff",
+                "--no-ext-diff",
+                "--no-textconv",
+                "--find-renames=50%",
+                "--numstat",
+                "-z",
+                from_oid,
+                to_oid,
+                *suffix,
+            ],
+        )
+        iterator = iter(records)
+        stats: dict[str, tuple[int | None, int | None]] = {}
+        for row in iterator:
+            if not row:
+                continue
+            fields = row.split(b"\t", 2)
+            if len(fields) != 3:
+                raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID")
+            additions = self._parse_numstat_count(fields[0])
+            deletions = self._parse_numstat_count(fields[1])
+            if fields[2]:
+                stat_path = _decode_output_path(fields[2])
+            else:
+                try:
+                    next(iterator)  # old path
+                    stat_path = _decode_output_path(next(iterator))
+                except StopIteration as exc:
+                    raise _error("REPOSITORY_DISCOVERY_GIT_OUTPUT_INVALID") from exc
+            if stat_path in wanted_paths:
+                stats[stat_path] = (additions, deletions)
+                if wanted_paths <= set(stats):
+                    break
+        return stats
+
+    def diff_index(
+        self,
+        *,
+        repository: str,
+        from_revision: str,
+        to_revision: str,
+        prefix: str = "",
+        limit: int = 100,
+        cursor: str | None = None,
+    ) -> dict[str, object]:
+        prefix = _safe_relative_path(prefix, "prefix", allow_empty=True)
+        limit = _positive_int(limit, "limit", _MAX_LIMIT)
+        path = self._repository_path(repository)
+        from_oid = self._resolve_at(path, from_revision, "from")
+        to_oid = self._resolve_at(path, to_revision, "to")
+        query = {
+            "from_oid": from_oid,
+            "to_oid": to_oid,
+            "prefix": prefix,
+            "limit": limit,
+        }
+        offset = self._cursor_offset(
+            cursor,
+            operation="diff_index",
+            repository=repository,
+            resolved_oid=to_oid,
+            query=query,
+        )
+        page: list[dict[str, object]] = []
+        total = 0
+        for entry in self._iter_diff_name_entries(path, from_oid, to_oid, prefix):
+            if total >= offset and len(page) < limit:
+                page.append(entry)
+            total += 1
+        wanted_paths = {str(entry["path"]) for entry in page}
+        stat_by_path = (
+            self._diff_stats(path, from_oid, to_oid, prefix, wanted_paths)
+            if page
+            else {}
+        )
+        for entry in page:
+            additions, deletions = stat_by_path.get(
+                str(entry["path"]), (None, None)
+            )
+            entry["additions"] = additions
+            entry["deletions"] = deletions
+        has_more = offset + len(page) < total
+        return {
+            "repository": repository,
+            "resolved_from_oid": from_oid,
+            "resolved_to_oid": to_oid,
+            "entries": page,
+            "truncated": has_more,
+            "next_cursor": (
+                self._next_cursor(
+                    operation="diff_index",
+                    repository=repository,
+                    resolved_oid=to_oid,
+                    query=query,
+                    offset=offset + len(page),
+                )
+                if has_more
+                else None
+            ),
+        }
+
+    def get_diff_index(self, request: Mapping[str, object]) -> dict[str, object]:
+        request = _request_mapping(request)
+        from_revision = request.get("from_revision", request.get("from"))
+        to_revision = request.get("to_revision", request.get("to"))
+        prefix = request.get("prefix", request.get("path_prefix", ""))
+        if from_revision is None or to_revision is None:
+            raise _error("REPOSITORY_DISCOVERY_REQUEST_INVALID")
+        return self.diff_index(
+            repository=_required_request_value(request, "repository"),  # type: ignore[arg-type]
+            from_revision=from_revision,  # type: ignore[arg-type]
+            to_revision=to_revision,  # type: ignore[arg-type]
+            prefix=prefix,  # type: ignore[arg-type]
+            limit=request.get("limit", 100),  # type: ignore[arg-type]
+            cursor=request.get("cursor"),  # type: ignore[arg-type]
+        )
+
+    def read_file(
+        self,
+        *,
+        repository: str,
+        revision: str,
+        file_path: str,
+        max_bytes: int = 262_144,
+    ) -> dict[str, object]:
+        file_path = _safe_relative_path(file_path, "file_path", allow_empty=False)
+        max_bytes = _positive_int(max_bytes, "max_bytes", _MAX_BYTES)
+        path = self._repository_path(repository)
+        resolved_oid = self._resolve_at(path, revision, "revision")
+        exact: list[dict[str, str]] = []
+        for entry in self._iter_tree_entries(
+            path, resolved_oid, file_path, include_trees=False
+        ):
+            if entry["path"] == file_path and entry["type"] == "blob":
+                exact.append(entry)
+        if len(exact) != 1:
+            raise RepositoryDiscoveryNotFound("REPOSITORY_DISCOVERY_FILE_NOT_FOUND")
+        blob_oid = exact[0]["object_oid"]
+        content, truncated = self._read_blob_prefix(path, blob_oid, max_bytes)
+        return {
+            "repository": repository,
+            "resolved_oid": resolved_oid,
+            "blob_oid": blob_oid,
+            "path": file_path,
+            "content": content.decode("utf-8", errors="replace"),
+            "content_base64": base64.b64encode(content).decode("ascii"),
+            "content_bytes": len(content),
+            "truncated": truncated,
+        }
+
+    def read_repository_file(self, request: Mapping[str, object]) -> dict[str, object]:
+        request = _request_mapping(request)
+        file_path = request.get("file_path", request.get("path"))
+        if file_path is None:
+            raise _error("REPOSITORY_DISCOVERY_REQUEST_INVALID")
+        return self.read_file(
+            repository=_required_request_value(request, "repository"),  # type: ignore[arg-type]
+            revision=request.get("revision", request.get("ref", "HEAD")),  # type: ignore[arg-type]
+            file_path=file_path,  # type: ignore[arg-type]
+            max_bytes=request.get("max_bytes", 262_144),  # type: ignore[arg-type]
+        )
+
+
+def create_repository_discovery(
+    *,
+    allowed_repositories: Iterable[str] | None = None,
+    git_dir: str | Path | None = None,
+    cursor_secret: str | bytes | None = None,
+) -> RepositoryDiscovery:
+    return RepositoryDiscovery(
+        allowed_repositories=allowed_repositories,
+        git_dir=git_dir,
+        cursor_secret=cursor_secret,
+    )
+
+
+def list_repository_tree(
+    request: Mapping[str, object], *, discovery: RepositoryDiscovery | None = None
+) -> dict[str, object]:
+    return (discovery or create_repository_discovery()).list_repository_tree(request)
+
+
+def search_repository_source(
+    request: Mapping[str, object], *, discovery: RepositoryDiscovery | None = None
+) -> dict[str, object]:
+    return (discovery or create_repository_discovery()).search_repository_source(request)
+
+
+def get_diff_index(
+    request: Mapping[str, object], *, discovery: RepositoryDiscovery | None = None
+) -> dict[str, object]:
+    return (discovery or create_repository_discovery()).get_diff_index(request)
+
+
+def read_repository_file(
+    request: Mapping[str, object], *, discovery: RepositoryDiscovery | None = None
+) -> dict[str, object]:
+    return (discovery or create_repository_discovery()).read_repository_file(request)

active-runtime/app/aios_single_host_operational_authority.py

@@ -0,0 +1,707 @@
+"""Single-host operational delegation for AIOS migration.
+
+This module is deliberately narrow:
+* Owner signs only OperationalDelegation and ExpiredTaskRecoveryDecision.
+* Machine signer signs only WorkerRuntimeBinding and WorkerRuntimeProof.
+* Every object is bound to one immutable Task identity and a narrow capability set.
+* There is no arbitrary sign-bytes API.
+"""
+from __future__ import annotations
+
+from dataclasses import asdict, dataclass
+import hashlib
+import json
+from pathlib import Path
+import re
+import time
+from typing import Any, Mapping, Sequence
+
+from aios_single_host_authority import (
+    DEFAULT_MACHINE_SIGNER_ID,
+    DEFAULT_OWNER_SIGNER_ID,
+    MACHINE_NAMESPACE,
+    OWNER_IDENTITY,
+    OWNER_NAMESPACE,
+    LocalFileSigner,
+    RegistryOwnerApprovalVerifier,
+    SignerRegistry,
+    SingleHostAuthorityError,
+    canonical_json_bytes,
+    sha256_json,
+    verify_sshsig,
+)
+
+OPERATIONAL_POLICY_SCHEMA = "aios.single-host-operational-policy.v1"
+OPERATIONAL_DELEGATION_SCHEMA = "aios.owner-operational-delegation.v1"
+RECOVERY_DECISION_SCHEMA = "aios.expired-task-recovery-decision.v1"
+WORKER_BINDING_SCHEMA = "aios.worker-runtime-binding.v1"
+WORKER_PROOF_SCHEMA = "aios.worker-runtime-proof.v1"
+REVOCATION_SCHEMA = "aios.operational-revocations.v1"
+
+ALLOWED_OPERATIONAL_CAPABILITIES = frozenset({
+    "task.recovery",
+    "worker.runtime.bind",
+    "worker.runtime.proof",
+    "task.claim.guard",
+})
+ALLOWED_EXPECTED_STATE = "EXPIRED"
+HEX40 = re.compile(r"^[0-9a-f]{40}$")
+HEX64 = re.compile(r"^[0-9a-f]{64}$")
+SAFE_ID = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:@/+:-]{2,511}$")
+CAP = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:-]{1,127}$")
+
+
+class OperationalAuthorityError(RuntimeError):
+    def __init__(self, code: str):
+        super().__init__(code)
+        self.code = code
+
+
+def fail(code: str) -> None:
+    raise OperationalAuthorityError(code)
+
+
+def _exact_fields(value: Mapping[str, Any], fields: set[str], code: str) -> None:
+    if not isinstance(value, Mapping) or set(value) != fields:
+        fail(code)
+
+
+def _safe_id(value: str, code: str) -> str:
+    if not isinstance(value, str) or not SAFE_ID.fullmatch(value):
+        fail(code)
+    return value
+
+
+def _hex(value: str, n: int, code: str) -> str:
+    regex = HEX40 if n == 40 else HEX64
+    if not isinstance(value, str) or not regex.fullmatch(value):
+        fail(code)
+    return value
+
+
+def _caps(value: Sequence[str], code: str) -> tuple[str, ...]:
+    if not isinstance(value, (list, tuple)) or not value:
+        fail(code)
+    out = tuple(sorted(set(value)))
+    if len(out) != len(value) or any(not isinstance(x, str) or not CAP.fullmatch(x) for x in out):
+        fail(code)
+    return out
+
+
+def task_identity_sha256(task: Mapping[str, Any]) -> str:
+    """Digest only immutable recovery/claim identity fields.
+
+    Revision, state, attempt and deadline are intentionally excluded.
+    """
+    fields = (
+        "task_id", "repository", "target_branch", "base_oid", "generation",
+        "execution_plan_sha256", "external_job_identity",
+    )
+    try:
+        value = {name: task[name] for name in fields}
+    except KeyError as exc:
+        raise OperationalAuthorityError("TASK_IDENTITY_FIELD_MISSING") from exc
+    _safe_id(str(value["task_id"]), "TASK_ID_INVALID")
+    _safe_id(str(value["repository"]), "REPOSITORY_INVALID")
+    _safe_id(str(value["target_branch"]), "TARGET_BRANCH_INVALID")
+    _hex(str(value["base_oid"]), 40, "BASE_OID_INVALID")
+    if type(value["generation"]) is not int or value["generation"] < 1:
+        fail("GENERATION_INVALID")
+    _hex(str(value["execution_plan_sha256"]), 64, "EXECUTION_PLAN_DIGEST_INVALID")
+    _safe_id(str(value["external_job_identity"]), "EXTERNAL_JOB_IDENTITY_INVALID")
+    return hashlib.sha256(canonical_json_bytes(value)).hexdigest()
+
+
+@dataclass(frozen=True, slots=True)
+class OperationalPolicy:
+    repository: str
+    task_id: str
+    task_identity_sha256: str
+    target_branch: str
+    base_oid: str
+    generation: int
+    execution_plan_sha256: str
+    external_job_identity: str
+    allowed_capabilities: tuple[str, ...]
+    allowed_worker_ids: tuple[str, ...]
+    maximum_delegation_ttl_seconds: int
+    maximum_recovery_decision_ttl_seconds: int
+    maximum_binding_ttl_seconds: int
+    maximum_proof_ttl_seconds: int
+    maximum_heartbeat_age_seconds: int
+    maximum_task_deadline_extension_seconds: int
+    schema: str = OPERATIONAL_POLICY_SCHEMA
+
+    def validate(self) -> None:
+        if self.schema != OPERATIONAL_POLICY_SCHEMA:
+            fail("OPERATIONAL_POLICY_SCHEMA_INVALID")
+        _safe_id(self.repository, "OPERATIONAL_POLICY_REPOSITORY_INVALID")
+        _safe_id(self.task_id, "OPERATIONAL_POLICY_TASK_ID_INVALID")
+        _hex(self.task_identity_sha256, 64, "OPERATIONAL_POLICY_TASK_IDENTITY_INVALID")
+        _safe_id(self.target_branch, "OPERATIONAL_POLICY_BRANCH_INVALID")
+        _hex(self.base_oid, 40, "OPERATIONAL_POLICY_BASE_OID_INVALID")
+        if type(self.generation) is not int or self.generation < 1:
+            fail("OPERATIONAL_POLICY_GENERATION_INVALID")
+        _hex(self.execution_plan_sha256, 64, "OPERATIONAL_POLICY_PLAN_INVALID")
+        _safe_id(self.external_job_identity, "OPERATIONAL_POLICY_JOB_INVALID")
+        caps = _caps(self.allowed_capabilities, "OPERATIONAL_POLICY_CAPABILITIES_INVALID")
+        if not set(caps).issubset(ALLOWED_OPERATIONAL_CAPABILITIES):
+            fail("OPERATIONAL_POLICY_CAPABILITY_WIDENING")
+        if not self.allowed_worker_ids or any(not SAFE_ID.fullmatch(x) for x in self.allowed_worker_ids):
+            fail("OPERATIONAL_POLICY_WORKERS_INVALID")
+        bounds = (
+            (self.maximum_delegation_ttl_seconds, 300, 7 * 24 * 3600),
+            (self.maximum_recovery_decision_ttl_seconds, 30, 900),
+            (self.maximum_binding_ttl_seconds, 60, 24 * 3600),
+            (self.maximum_proof_ttl_seconds, 15, 900),
+            (self.maximum_heartbeat_age_seconds, 5, 300),
+            (self.maximum_task_deadline_extension_seconds, 300, 24 * 3600),
+        )
+        if any(type(v) is not int or not lo <= v <= hi for v, lo, hi in bounds):
+            fail("OPERATIONAL_POLICY_TTL_INVALID")
+
+    @property
+    def digest(self) -> str:
+        self.validate()
+        return sha256_json(asdict(self))
+
+    @classmethod
+    def from_mapping(cls, value: Mapping[str, Any]) -> "OperationalPolicy":
+        fields = set(cls.__dataclass_fields__)
+        _exact_fields(value, fields, "OPERATIONAL_POLICY_FIELDS_INVALID")
+        try:
+            policy = cls(
+                repository=value["repository"],
+                task_id=value["task_id"],
+                task_identity_sha256=value["task_identity_sha256"],
+                target_branch=value["target_branch"],
+                base_oid=value["base_oid"],
+                generation=value["generation"],
+                execution_plan_sha256=value["execution_plan_sha256"],
+                external_job_identity=value["external_job_identity"],
+                allowed_capabilities=tuple(value["allowed_capabilities"]),
+                allowed_worker_ids=tuple(value["allowed_worker_ids"]),
+                maximum_delegation_ttl_seconds=value["maximum_delegation_ttl_seconds"],
+                maximum_recovery_decision_ttl_seconds=value["maximum_recovery_decision_ttl_seconds"],
+                maximum_binding_ttl_seconds=value["maximum_binding_ttl_seconds"],
+                maximum_proof_ttl_seconds=value["maximum_proof_ttl_seconds"],
+                maximum_heartbeat_age_seconds=value["maximum_heartbeat_age_seconds"],
+                maximum_task_deadline_extension_seconds=value["maximum_task_deadline_extension_seconds"],
+                schema=value["schema"],
+            )
+        except Exception as exc:
+            raise OperationalAuthorityError("OPERATIONAL_POLICY_FIELDS_INVALID") from exc
+        policy.validate()
+        return policy
+
+
+def build_exact_policy(
+    task: Mapping[str, Any],
+    *,
+    worker_id: str,
+    allowed_capabilities: Sequence[str] = tuple(sorted(ALLOWED_OPERATIONAL_CAPABILITIES)),
+) -> OperationalPolicy:
+    identity = task_identity_sha256(task)
+    policy = OperationalPolicy(
+        repository=str(task["repository"]),
+        task_id=str(task["task_id"]),
+        task_identity_sha256=identity,
+        target_branch=str(task["target_branch"]),
+        base_oid=str(task["base_oid"]),
+        generation=int(task["generation"]),
+        execution_plan_sha256=str(task["execution_plan_sha256"]),
+        external_job_identity=str(task["external_job_identity"]),
+        allowed_capabilities=tuple(sorted(allowed_capabilities)),
+        allowed_worker_ids=(worker_id,),
+        maximum_delegation_ttl_seconds=24 * 3600,
+        maximum_recovery_decision_ttl_seconds=300,
+        maximum_binding_ttl_seconds=4 * 3600,
+        maximum_proof_ttl_seconds=300,
+        maximum_heartbeat_age_seconds=30,
+        maximum_task_deadline_extension_seconds=4 * 3600,
+    )
+    policy.validate()
+    return policy
+
+
+def _signed_payload_dict(payload: Mapping[str, Any], *, key_id: str, namespace: str) -> dict[str, Any]:
+    value = dict(payload)
+    value["signature_namespace"] = namespace
+    value["signature_key_id"] = key_id
+    value["canonical_payload_digest"] = sha256_json(value)
+    return value
+
+
+def _verify_digest_field(payload: Mapping[str, Any]) -> bool:
+    if not isinstance(payload, Mapping) or "canonical_payload_digest" not in payload:
+        return False
+    value = dict(payload)
+    supplied = value.pop("canonical_payload_digest", None)
+    return isinstance(supplied, str) and supplied == sha256_json(value)
+
+
+@dataclass(frozen=True, slots=True)
+class SignedOperationalArtifact:
+    payload: dict[str, Any]
+    signature: str
+    key_id: str
+    namespace: str
+
+    @property
+    def canonical_payload(self) -> bytes:
+        return canonical_json_bytes(self.payload)
+
+    @property
+    def payload_sha256(self) -> str:
+        return hashlib.sha256(self.canonical_payload).hexdigest()
+
+    def to_dict(self) -> dict[str, Any]:
+        return {
+            "payload": dict(self.payload),
+            "signature": self.signature,
+            "key_id": self.key_id,
+            "namespace": self.namespace,
+        }
+
+
+class OperationalOwnerAuthority:
+    def __init__(self, key_path: Path, policy: OperationalPolicy, *, require_root_owner: bool = True, clock: Any = time.time):
+        policy.validate()
+        self.policy = policy
+        self.signer = LocalFileSigner(
+            Path(key_path),
+            signer_id=DEFAULT_OWNER_SIGNER_ID,
+            namespace=OWNER_NAMESPACE,
+            require_root_owner=require_root_owner,
+        )
+        self.clock = clock
+
+    @property
+    def fingerprint(self) -> str:
+        return self.signer.fingerprint
+
+    def _sign(self, payload: Mapping[str, Any]) -> SignedOperationalArtifact:
+        full = _signed_payload_dict(payload, key_id=self.fingerprint, namespace=OWNER_NAMESPACE)
+        art = self.signer._sign_canonical(full)
+        return SignedOperationalArtifact(dict(art.payload), art.signature, art.key_id, art.namespace)
+
+    def issue_operational_delegation(self, *, delegation_id: str, nonce: str, ttl_seconds: int) -> SignedOperationalArtifact:
+        now = int(self.clock())
+        p = self.policy
+        if not SAFE_ID.fullmatch(delegation_id) or not SAFE_ID.fullmatch(nonce):
+            fail("OPERATIONAL_DELEGATION_ID_INVALID")
+        if type(ttl_seconds) is not int or not 60 <= ttl_seconds <= p.maximum_delegation_ttl_seconds:
+            fail("OPERATIONAL_DELEGATION_TTL_INVALID")
+        payload = {
+            "schema": OPERATIONAL_DELEGATION_SCHEMA,
+            "delegation_id": delegation_id,
+            "nonce": nonce,
+            "owner_identity": OWNER_IDENTITY,
+            "repository": p.repository,
+            "task_id": p.task_id,
+            "task_identity_sha256": p.task_identity_sha256,
+            "target_branch": p.target_branch,
+            "base_oid": p.base_oid,
+            "generation": p.generation,
+            "execution_plan_sha256": p.execution_plan_sha256,
+            "external_job_identity": p.external_job_identity,
+            "allowed_capabilities": list(p.allowed_capabilities),
+            "allowed_worker_ids": list(p.allowed_worker_ids),
+            "policy_digest": p.digest,
+            "issued_at": now,
+            "not_before": max(0, now - 5),
+            "expires_at": now + ttl_seconds,
+            "revocation_epoch": 0,
+            "status": "ACTIVE",
+        }
+        return self._sign(payload)
+
+    def issue_recovery_decision(
+        self,
+        delegation: Mapping[str, Any],
+        *,
+        decision_id: str,
+        nonce: str,
+        expected_revision: int,
+        expected_attempt: int,
+        original_deadline: int,
+        new_deadline: int,
+        ttl_seconds: int,
+    ) -> SignedOperationalArtifact:
+        now = int(self.clock())
+        verify_delegation_scope(delegation, self.policy, now=now)
+        if "task.recovery" not in delegation["allowed_capabilities"]:
+            fail("RECOVERY_CAPABILITY_NOT_DELEGATED")
+        if not SAFE_ID.fullmatch(decision_id) or not SAFE_ID.fullmatch(nonce):
+            fail("RECOVERY_DECISION_ID_INVALID")
+        if type(expected_revision) is not int or expected_revision < 0 or type(expected_attempt) is not int or expected_attempt < 0:
+            fail("RECOVERY_CAS_INVALID")
+        if type(original_deadline) is not int or type(new_deadline) is not int:
+            fail("RECOVERY_DEADLINE_INVALID")
+        if new_deadline <= now or new_deadline <= original_deadline:
+            fail("RECOVERY_DEADLINE_INVALID")
+        if new_deadline - now > self.policy.maximum_task_deadline_extension_seconds:
+            fail("RECOVERY_DEADLINE_WIDENING")
+        if type(ttl_seconds) is not int or not 15 <= ttl_seconds <= self.policy.maximum_recovery_decision_ttl_seconds:
+            fail("RECOVERY_DECISION_TTL_INVALID")
+        payload = {
+            "schema": RECOVERY_DECISION_SCHEMA,
+            "decision_id": decision_id,
+            "nonce": nonce,
+            "parent_delegation_id": delegation["delegation_id"],
+            "parent_delegation_digest": hashlib.sha256(canonical_json_bytes(dict(delegation))).hexdigest(),
+            "task_id": self.policy.task_id,
+            "task_identity_sha256": self.policy.task_identity_sha256,
+            "expected_state": ALLOWED_EXPECTED_STATE,
+            "expected_revision": expected_revision,
+            "expected_attempt": expected_attempt,
+            "original_deadline": original_deadline,
+            "new_deadline": new_deadline,
+            "repository": self.policy.repository,
+            "target_branch": self.policy.target_branch,
+            "base_oid": self.policy.base_oid,
+            "generation": self.policy.generation,
+            "execution_plan_sha256": self.policy.execution_plan_sha256,
+            "external_job_identity": self.policy.external_job_identity,
+            "policy_digest": self.policy.digest,
+            "one_time_use": True,
+            "issued_at": now,
+            "not_before": max(0, now - 5),
+            "expires_at": now + ttl_seconds,
+        }
+        return self._sign(payload)
+
+
+class OperationalMachineAuthority:
+    def __init__(self, key_path: Path, policy: OperationalPolicy, *, require_root_owner: bool = True, clock: Any = time.time):
+        policy.validate()
+        self.policy = policy
+        self.signer = LocalFileSigner(
+            Path(key_path),
+            signer_id=DEFAULT_MACHINE_SIGNER_ID,
+            namespace=MACHINE_NAMESPACE,
+            require_root_owner=require_root_owner,
+        )
+        self.clock = clock
+
+    @property
+    def fingerprint(self) -> str:
+        return self.signer.fingerprint
+
+    def _sign(self, payload: Mapping[str, Any]) -> SignedOperationalArtifact:
+        full = _signed_payload_dict(payload, key_id=self.fingerprint, namespace=MACHINE_NAMESPACE)
+        art = self.signer._sign_canonical(full)
+        return SignedOperationalArtifact(dict(art.payload), art.signature, art.key_id, art.namespace)
+
+    def issue_runtime_binding(
+        self,
+        delegation: Mapping[str, Any],
+        *,
+        binding_id: str,
+        nonce: str,
+        worker_id: str,
+        runtime_id: str,
+        runtime_sha256: str,
+        task_contract_version: str,
+        supported_contract_versions: Sequence[str],
+        required_capabilities: Sequence[str],
+        worker_capabilities: Sequence[str],
+        max_concurrency: int,
+        ttl_seconds: int,
+    ) -> SignedOperationalArtifact:
+        now = int(self.clock())
+        p = self.policy
+        verify_delegation_scope(delegation, p, now=now)
+        if "worker.runtime.bind" not in delegation["allowed_capabilities"]:
+            fail("RUNTIME_BIND_CAPABILITY_NOT_DELEGATED")
+        if worker_id not in p.allowed_worker_ids:
+            fail("WORKER_ID_NOT_DELEGATED")
+        for val, code in [(binding_id, "BINDING_ID_INVALID"), (nonce, "BINDING_NONCE_INVALID"), (worker_id, "WORKER_ID_INVALID"), (runtime_id, "RUNTIME_ID_INVALID"), (task_contract_version, "CONTRACT_VERSION_INVALID")]:
+            _safe_id(val, code)
+        _hex(runtime_sha256, 64, "RUNTIME_SHA256_INVALID")
+        supported = tuple(sorted(set(supported_contract_versions)))
+        if task_contract_version not in supported or not supported or any(not SAFE_ID.fullmatch(x) for x in supported):
+            fail("CONTRACT_INCOMPATIBLE")
+        required = _caps(required_capabilities, "REQUIRED_CAPABILITIES_INVALID")
+        worker_caps = _caps(worker_capabilities, "WORKER_CAPABILITIES_INVALID")
+        if not set(required).issubset(set(worker_caps)):
+            fail("CAPABILITY_MISMATCH")
+        if type(max_concurrency) is not int or not 1 <= max_concurrency <= 64:
+            fail("MAX_CONCURRENCY_INVALID")
+        if type(ttl_seconds) is not int or not 30 <= ttl_seconds <= p.maximum_binding_ttl_seconds:
+            fail("BINDING_TTL_INVALID")
+        if now + ttl_seconds > int(delegation["expires_at"]):
+            fail("BINDING_EXCEEDS_PARENT")
+        payload = {
+            "schema": WORKER_BINDING_SCHEMA,
+            "binding_id": binding_id,
+            "nonce": nonce,
+            "parent_delegation_id": delegation["delegation_id"],
+            "parent_delegation_digest": hashlib.sha256(canonical_json_bytes(dict(delegation))).hexdigest(),
+            "repository": p.repository,
+            "task_id": p.task_id,
+            "task_identity_sha256": p.task_identity_sha256,
+            "target_branch": p.target_branch,
+            "base_oid": p.base_oid,
+            "generation": p.generation,
+            "execution_plan_sha256": p.execution_plan_sha256,
+            "external_job_identity": p.external_job_identity,
+            "worker_id": worker_id,
+            "runtime_id": runtime_id,
+            "runtime_sha256": runtime_sha256,
+            "task_contract_version": task_contract_version,
+            "supported_contract_versions": list(supported),
+            "required_capabilities": list(required),
+            "worker_capabilities": list(worker_caps),
+            "max_concurrency": max_concurrency,
+            "policy_digest": p.digest,
+            "issued_at": now,
+            "not_before": max(0, now - 5),
+            "expires_at": now + ttl_seconds,
+        }
+        return self._sign(payload)
+
+    def issue_runtime_proof(
+        self,
+        delegation: Mapping[str, Any],
+        binding: Mapping[str, Any],
+        *,
+        proof_id: str,
+        nonce: str,
+        heartbeat_at: int,
+        adapter_readiness: bool,
+        resource_readiness: bool,
+        active_claim_count: int,
+        ttl_seconds: int,
+    ) -> SignedOperationalArtifact:
+        now = int(self.clock())
+        p = self.policy
+        verify_delegation_scope(delegation, p, now=now)
+        verify_binding_scope(binding, delegation, p, now=now)
+        if "worker.runtime.proof" not in delegation["allowed_capabilities"]:
+            fail("RUNTIME_PROOF_CAPABILITY_NOT_DELEGATED")
+        _safe_id(proof_id, "PROOF_ID_INVALID")
+        _safe_id(nonce, "PROOF_NONCE_INVALID")
+        if type(heartbeat_at) is not int or heartbeat_at > now + 5 or now - heartbeat_at > p.maximum_heartbeat_age_seconds:
+            fail("HEARTBEAT_STALE")
+        if adapter_readiness is not True or resource_readiness is not True:
+            fail("RUNTIME_NOT_READY")
+        if type(active_claim_count) is not int or active_claim_count < 0 or active_claim_count >= int(binding["max_concurrency"]):
+            fail("MAX_CONCURRENCY_REACHED")
+        if type(ttl_seconds) is not int or not 10 <= ttl_seconds <= p.maximum_proof_ttl_seconds:
+            fail("PROOF_TTL_INVALID")
+        if now + ttl_seconds > min(int(binding["expires_at"]), int(delegation["expires_at"])):
+            fail("PROOF_EXCEEDS_PARENT")
+        payload = {
+            "schema": WORKER_PROOF_SCHEMA,
+            "proof_id": proof_id,
+            "nonce": nonce,
+            "parent_delegation_id": delegation["delegation_id"],
+            "parent_delegation_digest": hashlib.sha256(canonical_json_bytes(dict(delegation))).hexdigest(),
+            "binding_id": binding["binding_id"],
+            "binding_digest": hashlib.sha256(canonical_json_bytes(dict(binding))).hexdigest(),
+            "repository": p.repository,
+            "task_id": p.task_id,
+            "task_identity_sha256": p.task_identity_sha256,
+            "generation": p.generation,
+            "execution_plan_sha256": p.execution_plan_sha256,
+            "worker_id": binding["worker_id"],
+            "runtime_id": binding["runtime_id"],
+            "runtime_sha256": binding["runtime_sha256"],
+            "heartbeat_at": heartbeat_at,
+            "adapter_readiness": True,
+            "resource_readiness": True,
+            "active_claim_count": active_claim_count,
+            "max_concurrency": binding["max_concurrency"],
+            "policy_digest": p.digest,
+            "issued_at": now,
+            "expires_at": now + ttl_seconds,
+        }
+        return self._sign(payload)
+
+
+DELEGATION_FIELDS = {
+    "schema","delegation_id","nonce","owner_identity","repository","task_id",
+    "task_identity_sha256","target_branch","base_oid","generation","execution_plan_sha256",
+    "external_job_identity","allowed_capabilities","allowed_worker_ids","policy_digest",
+    "issued_at","not_before","expires_at","revocation_epoch","status",
+    "signature_namespace","signature_key_id","canonical_payload_digest",
+}
+BINDING_FIELDS = {
+    "schema","binding_id","nonce","parent_delegation_id","parent_delegation_digest",
+    "repository","task_id","task_identity_sha256","target_branch","base_oid","generation",
+    "execution_plan_sha256","external_job_identity","worker_id","runtime_id","runtime_sha256",
+    "task_contract_version","supported_contract_versions","required_capabilities","worker_capabilities",
+    "max_concurrency","policy_digest","issued_at","not_before","expires_at",
+    "signature_namespace","signature_key_id","canonical_payload_digest",
+}
+PROOF_FIELDS = {
+    "schema","proof_id","nonce","parent_delegation_id","parent_delegation_digest",
+    "binding_id","binding_digest","repository","task_id","task_identity_sha256","generation",
+    "execution_plan_sha256","worker_id","runtime_id","runtime_sha256","heartbeat_at",
+    "adapter_readiness","resource_readiness","active_claim_count","max_concurrency",
+    "policy_digest","issued_at","expires_at","signature_namespace","signature_key_id",
+    "canonical_payload_digest",
+}
+RECOVERY_FIELDS = {
+    "schema","decision_id","nonce","parent_delegation_id","parent_delegation_digest",
+    "task_id","task_identity_sha256","expected_state","expected_revision","expected_attempt",
+    "original_deadline","new_deadline","repository","target_branch","base_oid","generation",
+    "execution_plan_sha256","external_job_identity","policy_digest","one_time_use",
+    "issued_at","not_before","expires_at","signature_namespace","signature_key_id",
+    "canonical_payload_digest",
+}
+
+
+def verify_delegation_scope(value: Mapping[str, Any], policy: OperationalPolicy, *, now: int | None = None) -> None:
+    policy.validate()
+    _exact_fields(value, DELEGATION_FIELDS, "OPERATIONAL_DELEGATION_FIELDS_INVALID")
+    now = int(time.time()) if now is None else int(now)
+    if (
+        value["schema"] != OPERATIONAL_DELEGATION_SCHEMA
+        or value["status"] != "ACTIVE"
+        or value["revocation_epoch"] != 0
+        or value["owner_identity"] != OWNER_IDENTITY
+        or value["repository"] != policy.repository
+        or value["task_id"] != policy.task_id
+        or value["task_identity_sha256"] != policy.task_identity_sha256
+        or value["target_branch"] != policy.target_branch
+        or value["base_oid"] != policy.base_oid
+        or value["generation"] != policy.generation
+        or value["execution_plan_sha256"] != policy.execution_plan_sha256
+        or value["external_job_identity"] != policy.external_job_identity
+        or value["policy_digest"] != policy.digest
+        or not set(value["allowed_capabilities"]).issubset(set(policy.allowed_capabilities))
+        or not set(value["allowed_worker_ids"]).issubset(set(policy.allowed_worker_ids))
+        or value["signature_namespace"] != OWNER_NAMESPACE
+        or not _verify_digest_field(value)
+        or not int(value["not_before"]) <= now < int(value["expires_at"])
+    ):
+        fail("OPERATIONAL_DELEGATION_SCOPE_INVALID")
+
+
+def verify_binding_scope(binding: Mapping[str, Any], delegation: Mapping[str, Any], policy: OperationalPolicy, *, now: int | None = None) -> None:
+    _exact_fields(binding, BINDING_FIELDS, "WORKER_BINDING_FIELDS_INVALID")
+    now = int(time.time()) if now is None else int(now)
+    expected_parent = hashlib.sha256(canonical_json_bytes(dict(delegation))).hexdigest()
+    if (
+        binding["schema"] != WORKER_BINDING_SCHEMA
+        or binding["parent_delegation_id"] != delegation["delegation_id"]
+        or binding["parent_delegation_digest"] != expected_parent
+        or binding["repository"] != policy.repository
+        or binding["task_id"] != policy.task_id
+        or binding["task_identity_sha256"] != policy.task_identity_sha256
+        or binding["target_branch"] != policy.target_branch
+        or binding["base_oid"] != policy.base_oid
+        or binding["generation"] != policy.generation
+        or binding["execution_plan_sha256"] != policy.execution_plan_sha256
+        or binding["external_job_identity"] != policy.external_job_identity
+        or binding["worker_id"] not in policy.allowed_worker_ids
+        or binding["policy_digest"] != policy.digest
+        or binding["signature_namespace"] != MACHINE_NAMESPACE
+        or not _verify_digest_field(binding)
+        or not int(binding["not_before"]) <= now < int(binding["expires_at"])
+    ):
+        fail("WORKER_BINDING_SCOPE_INVALID")
+    required = set(binding["required_capabilities"])
+    worker = set(binding["worker_capabilities"])
+    if not required.issubset(worker) or binding["task_contract_version"] not in binding["supported_contract_versions"]:
+        fail("WORKER_BINDING_COMPATIBILITY_INVALID")
+
+
+def verify_proof_scope(proof: Mapping[str, Any], binding: Mapping[str, Any], delegation: Mapping[str, Any], policy: OperationalPolicy, *, now: int | None = None) -> None:
+    _exact_fields(proof, PROOF_FIELDS, "WORKER_PROOF_FIELDS_INVALID")
+    now = int(time.time()) if now is None else int(now)
+    if (
+        proof["schema"] != WORKER_PROOF_SCHEMA
+        or proof["parent_delegation_id"] != delegation["delegation_id"]
+        or proof["parent_delegation_digest"] != hashlib.sha256(canonical_json_bytes(dict(delegation))).hexdigest()
+        or proof["binding_id"] != binding["binding_id"]
+        or proof["binding_digest"] != hashlib.sha256(canonical_json_bytes(dict(binding))).hexdigest()
+        or proof["repository"] != policy.repository
+        or proof["task_id"] != policy.task_id
+        or proof["task_identity_sha256"] != policy.task_identity_sha256
+        or proof["generation"] != policy.generation
+        or proof["execution_plan_sha256"] != policy.execution_plan_sha256
+        or proof["worker_id"] != binding["worker_id"]
+        or proof["runtime_id"] != binding["runtime_id"]
+        or proof["runtime_sha256"] != binding["runtime_sha256"]
+        or proof["max_concurrency"] != binding["max_concurrency"]
+        or proof["policy_digest"] != policy.digest
+        or proof["signature_namespace"] != MACHINE_NAMESPACE
+        or proof["adapter_readiness"] is not True
+        or proof["resource_readiness"] is not True
+        or not _verify_digest_field(proof)
+        or not now < int(proof["expires_at"])
+        or now - int(proof["heartbeat_at"]) > policy.maximum_heartbeat_age_seconds
+        or int(proof["active_claim_count"]) >= int(proof["max_concurrency"])
+    ):
+        fail("WORKER_PROOF_SCOPE_INVALID")
+
+
+def verify_recovery_scope(decision: Mapping[str, Any], delegation: Mapping[str, Any], policy: OperationalPolicy, *, now: int | None = None) -> None:
+    _exact_fields(decision, RECOVERY_FIELDS, "RECOVERY_DECISION_FIELDS_INVALID")
+    now = int(time.time()) if now is None else int(now)
+    if (
+        decision["schema"] != RECOVERY_DECISION_SCHEMA
+        or decision["parent_delegation_id"] != delegation["delegation_id"]
+        or decision["parent_delegation_digest"] != hashlib.sha256(canonical_json_bytes(dict(delegation))).hexdigest()
+        or decision["task_id"] != policy.task_id
+        or decision["task_identity_sha256"] != policy.task_identity_sha256
+        or decision["expected_state"] != "EXPIRED"
+        or decision["repository"] != policy.repository
+        or decision["target_branch"] != policy.target_branch
+        or decision["base_oid"] != policy.base_oid
+        or decision["generation"] != policy.generation
+        or decision["execution_plan_sha256"] != policy.execution_plan_sha256
+        or decision["external_job_identity"] != policy.external_job_identity
+        or decision["policy_digest"] != policy.digest
+        or decision["one_time_use"] is not True
+        or decision["signature_namespace"] != OWNER_NAMESPACE
+        or not _verify_digest_field(decision)
+        or not int(decision["not_before"]) <= now < int(decision["expires_at"])
+        or int(decision["new_deadline"]) <= now
+    ):
+        fail("RECOVERY_DECISION_SCOPE_INVALID")
+
+
+class OperationalVerifier:
+    """Verify signatures through the public root-owned SignerRegistry."""
+
+    def __init__(self, registry_path: Path, *, require_root_owner: bool = True):
+        self.registry_path = Path(registry_path)
+        self.require_root_owner = require_root_owner
+
+    def _verify(self, artifact: SignedOperationalArtifact | Mapping[str, Any], *, role: str, signer_id: str, namespace: str) -> dict[str, Any]:
+        if isinstance(artifact, SignedOperationalArtifact):
+            payload, signature, key_id, artifact_namespace = artifact.payload, artifact.signature, artifact.key_id, artifact.namespace
+        else:
+            _exact_fields(artifact, {"payload","signature","key_id","namespace"}, "SIGNED_ARTIFACT_FIELDS_INVALID")
+            payload, signature, key_id, artifact_namespace = artifact["payload"], artifact["signature"], artifact["key_id"], artifact["namespace"]
+        if artifact_namespace != namespace:
+            fail("SIGNED_ARTIFACT_NAMESPACE_INVALID")
+        registry = SignerRegistry(self.registry_path, require_root_owner=self.require_root_owner)
+        rec = registry.require(signer_id, role=role)
+        if rec.fingerprint != key_id:
+            fail("SIGNED_ARTIFACT_KEY_ID_INVALID")
+        if role == "MACHINE_OPERATIONAL":
+            owner_rec = registry.require(DEFAULT_OWNER_SIGNER_ID, role="OWNER_AUTHORITY")
+            if rec.parent_signer_id != owner_rec.signer_id or rec.parent_fingerprint != owner_rec.fingerprint:
+                fail("MACHINE_PARENT_BINDING_INVALID")
+        # RegistryOwnerApprovalVerifier handles Owner namespace; generic machine uses registry public key.
+        if role == "OWNER_AUTHORITY":
+            verifier = RegistryOwnerApprovalVerifier(self.registry_path, require_root_owner=self.require_root_owner, signer_id=signer_id)
+            ok = verifier.verify(namespace=namespace, payload=canonical_json_bytes(payload), signature=signature, key_id=key_id)
+        else:
+            from aios_single_host_authority import _load_public_key_line
+            pub = _load_public_key_line(rec.public_key)
+            ok = verify_sshsig(pub, canonical_json_bytes(payload), signature, namespace=namespace, expected_key_id=key_id)
+        if not ok:
+            fail("SIGNED_ARTIFACT_SIGNATURE_INVALID")
+        return dict(payload)
+
+    def owner(self, artifact: SignedOperationalArtifact | Mapping[str, Any]) -> dict[str, Any]:
+        return self._verify(artifact, role="OWNER_AUTHORITY", signer_id=DEFAULT_OWNER_SIGNER_ID, namespace=OWNER_NAMESPACE)
+
+    def machine(self, artifact: SignedOperationalArtifact | Mapping[str, Any]) -> dict[str, Any]:
+        return self._verify(artifact, role="MACHINE_OPERATIONAL", signer_id=DEFAULT_MACHINE_SIGNER_ID, namespace=MACHINE_NAMESPACE)

active-runtime/app/aios_single_host_operational_authority_server.py

@@ -0,0 +1,410 @@
+"""Unix-domain fixed-schema service for operational migration authority."""
+from __future__ import annotations
+
+import argparse
+import hashlib
+import json
+import os
+import re
+from pathlib import Path
+import socket
+import sqlite3
+import struct
+import stat
+import sys
+import time
+from typing import Any, Mapping
+
+from aios_single_host_authority import (
+    DEFAULT_REGISTRY_PATH,
+    OWNER_NAMESPACE,
+    MACHINE_NAMESPACE,
+    SingleHostAuthorityError,
+)
+from aios_single_host_operational_authority import (
+    OperationalAuthorityError,
+    OperationalMachineAuthority,
+    OperationalOwnerAuthority,
+    OperationalPolicy,
+    OperationalVerifier,
+    SignedOperationalArtifact,
+    verify_binding_scope,
+    verify_delegation_scope,
+)
+
+DEFAULT_POLICY = Path("/etc/aios/single-host-operational-policy.json")
+DEFAULT_OWNER_KEY = Path("/var/lib/aios-owner-authority/owner-authority.key")
+DEFAULT_MACHINE_KEY = Path("/var/lib/aios-machine-signer/machine-operational.key")
+DEFAULT_OWNER_SOCKET = Path("/run/aios/owner-authority.sock")
+DEFAULT_MACHINE_SOCKET = Path("/run/aios/machine-signer.sock")
+DEFAULT_LEDGER = Path("/var/lib/aios-operational-authority/issuance-ledger.sqlite3")
+MAX_REQUEST = 128 * 1024
+READINESS_SCHEMA = "aios.signer-readiness-challenge.v1"
+
+
+class OperationalServiceError(RuntimeError):
+    def __init__(self, code: str):
+        super().__init__(code)
+        self.code = code
+
+
+def fail(code: str) -> None:
+    raise OperationalServiceError(code)
+
+
+def _read_policy(path: Path, *, require_root_owner: bool = True) -> OperationalPolicy:
+    path=Path(path)
+    if not path.is_absolute():
+        fail("OPERATIONAL_POLICY_PATH_INVALID")
+    flags=os.O_RDONLY
+    if hasattr(os,"O_NOFOLLOW"):
+        flags |= os.O_NOFOLLOW
+    try:
+        fd=os.open(path,flags)
+    except OSError as exc:
+        raise OperationalServiceError("OPERATIONAL_POLICY_UNAVAILABLE") from exc
+    try:
+        st=os.fstat(fd)
+        if not stat.S_ISREG(st.st_mode):
+            fail("OPERATIONAL_POLICY_NOT_REGULAR")
+        mode=stat.S_IMODE(st.st_mode)
+        if mode & 0o022:
+            fail("OPERATIONAL_POLICY_WRITABLE_BY_GROUP_OR_OTHER")
+        if require_root_owner and st.st_uid != 0:
+            fail("OPERATIONAL_POLICY_NOT_ROOT_OWNED")
+        raw=bytearray()
+        while len(raw) <= MAX_REQUEST:
+            chunk=os.read(fd,min(65536,MAX_REQUEST+1-len(raw)))
+            if not chunk: break
+            raw.extend(chunk)
+        if not raw or len(raw)>MAX_REQUEST:
+            fail("OPERATIONAL_POLICY_UNAVAILABLE")
+    finally:
+        os.close(fd)
+    try:
+        obj=json.loads(bytes(raw).decode("utf-8"))
+    except Exception as exc:
+        raise OperationalServiceError("OPERATIONAL_POLICY_INVALID") from exc
+    return OperationalPolicy.from_mapping(obj)
+
+
+def _artifact(value: Mapping[str, Any]) -> SignedOperationalArtifact:
+    if not isinstance(value, Mapping) or set(value) != {"payload","signature","key_id","namespace"}:
+        fail("SIGNED_ARTIFACT_INVALID")
+    if not isinstance(value["payload"], Mapping):
+        fail("SIGNED_ARTIFACT_INVALID")
+    return SignedOperationalArtifact(
+        payload=dict(value["payload"]),
+        signature=str(value["signature"]),
+        key_id=str(value["key_id"]),
+        namespace=str(value["namespace"]),
+    )
+
+
+def _peer_uid(conn: socket.socket) -> int:
+    if not hasattr(socket, "SO_PEERCRED"):
+        fail("PEER_CREDENTIALS_UNAVAILABLE")
+    pid, uid, gid = struct.unpack("3i", conn.getsockopt(socket.SOL_SOCKET, socket.SO_PEERCRED, struct.calcsize("3i")))
+    return uid
+
+
+
+class DurableIssuanceLedger:
+    """Root-owned exact-idempotent structured signing ledger."""
+
+    def __init__(self, path: Path):
+        self.path = Path(path)
+        self.path.parent.mkdir(parents=True, exist_ok=True)
+        if os.name == "posix": os.chmod(self.path.parent, 0o700)
+        if self.path.exists() and self.path.is_symlink():
+            fail("ISSUANCE_LEDGER_SYMLINK_FORBIDDEN")
+        conn = sqlite3.connect(self.path)
+        try:
+            conn.execute("PRAGMA journal_mode=DELETE")
+            conn.execute("""
+                CREATE TABLE IF NOT EXISTS issuance (
+                  role TEXT NOT NULL,
+                  operation TEXT NOT NULL,
+                  nonce TEXT NOT NULL,
+                  request_sha256 TEXT NOT NULL,
+                  response_json TEXT NOT NULL,
+                  created_at INTEGER NOT NULL,
+                  PRIMARY KEY(role, operation, nonce)
+                )
+            """)
+            conn.commit()
+        finally:
+            conn.close()
+        os.chmod(self.path, 0o600)
+
+    def issue(self, *, role: str, operation: str, nonce: str, request: Mapping[str, Any], issuer: Any) -> dict[str, Any]:
+        request_sha = hashlib.sha256(
+            json.dumps(request, sort_keys=True, separators=(",",":"), ensure_ascii=False).encode("utf-8")
+        ).hexdigest()
+        conn = sqlite3.connect(self.path, timeout=5, isolation_level=None)
+        try:
+            conn.execute("BEGIN IMMEDIATE")
+            row = conn.execute(
+                "SELECT request_sha256,response_json FROM issuance WHERE role=? AND operation=? AND nonce=?",
+                (role, operation, nonce),
+            ).fetchone()
+            if row is not None:
+                if row[0] != request_sha:
+                    conn.rollback()
+                    fail("NONCE_REUSE_WITH_DIFFERENT_REQUEST")
+                result = json.loads(row[1])
+                conn.commit()
+                return result
+            result = issuer()
+            encoded = json.dumps(result, sort_keys=True, separators=(",",":"), ensure_ascii=False)
+            conn.execute(
+                "INSERT INTO issuance(role,operation,nonce,request_sha256,response_json,created_at) VALUES(?,?,?,?,?,?)",
+                (role, operation, nonce, request_sha, encoded, int(time.time())),
+            )
+            conn.commit()
+            return result
+        except sqlite3.IntegrityError:
+            conn.rollback()
+            fail("ISSUANCE_LEDGER_RACE")
+        finally:
+            conn.close()
+
+class OperationalAuthorityService:
+    def __init__(
+        self,
+        *,
+        role: str,
+        policy_path: Path = DEFAULT_POLICY,
+        registry_path: Path = DEFAULT_REGISTRY_PATH,
+        owner_key_path: Path = DEFAULT_OWNER_KEY,
+        machine_key_path: Path = DEFAULT_MACHINE_KEY,
+        socket_path: Path | None = None,
+        ledger_path: Path = DEFAULT_LEDGER,
+        allowed_uids: tuple[int, ...] = (0,),
+        clock: Any = time.time,
+        require_root_owner: bool = True,
+    ):
+        if role not in {"owner","machine"}:
+            fail("ROLE_INVALID")
+        self.role = role
+        self.policy_path = Path(policy_path)
+        self.registry_path = Path(registry_path)
+        self.owner_key_path = Path(owner_key_path)
+        self.machine_key_path = Path(machine_key_path)
+        self.socket_path = Path(socket_path or (DEFAULT_OWNER_SOCKET if role == "owner" else DEFAULT_MACHINE_SOCKET))
+        self.allowed_uids = tuple(allowed_uids)
+        self.ledger = DurableIssuanceLedger(ledger_path)
+        self.clock = clock
+        self.require_root_owner = require_root_owner
+
+    def _components(self):
+        policy = _read_policy(self.policy_path, require_root_owner=self.require_root_owner)
+        verifier = OperationalVerifier(self.registry_path, require_root_owner=self.require_root_owner)
+        if self.role == "owner":
+            signer = OperationalOwnerAuthority(self.owner_key_path, policy, require_root_owner=self.require_root_owner, clock=self.clock)
+        else:
+            signer = OperationalMachineAuthority(self.machine_key_path, policy, require_root_owner=self.require_root_owner, clock=self.clock)
+        return policy, verifier, signer
+
+    def handle(self, request: Mapping[str, Any], *, peer_uid: int) -> dict[str, Any]:
+        if peer_uid not in self.allowed_uids:
+            fail("PEER_UID_FORBIDDEN")
+        if not isinstance(request, Mapping) or set(request) != {"operation","payload"} or not isinstance(request["payload"], Mapping):
+            fail("REQUEST_INVALID")
+        op = request["operation"]
+        p = request["payload"]
+        policy, verifier, signer = self._components()
+
+        if op == "identity":
+            return {
+                "status":"PASS",
+                "role":self.role,
+                "policy_digest":policy.digest,
+                "key_id":signer.fingerprint,
+                "socket":str(self.socket_path),
+                "arbitrary_signing":False,
+            }
+
+        if op == "readiness_challenge":
+            if set(p) != {"challenge_id","challenge_sha256"}:
+                fail("REQUEST_FIELDS_INVALID")
+            challenge_id = str(p["challenge_id"])
+            challenge_sha256 = str(p["challenge_sha256"])
+            if not challenge_id or len(challenge_id) > 160:
+                fail("READINESS_CHALLENGE_ID_INVALID")
+            if not isinstance(challenge_sha256, str) or not re.fullmatch(r"[0-9a-f]{64}", challenge_sha256):
+                fail("READINESS_CHALLENGE_SHA256_INVALID")
+            namespace = OWNER_NAMESPACE if self.role == "owner" else MACHINE_NAMESPACE
+            def issue():
+                art = signer._sign({
+                    "schema": READINESS_SCHEMA,
+                    "role": self.role,
+                    "challenge_id": challenge_id,
+                    "challenge_sha256": challenge_sha256,
+                    "policy_digest": policy.digest,
+                    "issued_at": int(self.clock()),
+                })
+                return {"status":"PASS","artifact":art.to_dict()}
+            return self.ledger.issue(
+                role=self.role,
+                operation=op,
+                nonce=challenge_id,
+                request=p,
+                issuer=issue,
+            )
+
+        if self.role == "owner":
+            if op == "issue_operational_delegation":
+                if set(p) != {"delegation_id","nonce","ttl_seconds"}:
+                    fail("REQUEST_FIELDS_INVALID")
+                def issue():
+                    art = signer.issue_operational_delegation(
+                        delegation_id=str(p["delegation_id"]),
+                        nonce=str(p["nonce"]),
+                        ttl_seconds=p["ttl_seconds"],
+                    )
+                    return {"status":"PASS","artifact":art.to_dict()}
+                return self.ledger.issue(role=self.role, operation=op, nonce=str(p["nonce"]), request=p, issuer=issue)
+            if op == "issue_expired_task_recovery":
+                if set(p) != {"delegation","decision_id","nonce","expected_revision","expected_attempt","original_deadline","new_deadline","ttl_seconds"}:
+                    fail("REQUEST_FIELDS_INVALID")
+                parent_art = _artifact(p["delegation"])
+                parent = verifier.owner(parent_art)
+                verify_delegation_scope(parent, policy, now=int(self.clock()))
+                def issue():
+                    art = signer.issue_recovery_decision(
+                        parent,
+                        decision_id=str(p["decision_id"]),
+                        nonce=str(p["nonce"]),
+                        expected_revision=p["expected_revision"],
+                        expected_attempt=p["expected_attempt"],
+                        original_deadline=p["original_deadline"],
+                        new_deadline=p["new_deadline"],
+                        ttl_seconds=p["ttl_seconds"],
+                    )
+                    return {"status":"PASS","artifact":art.to_dict()}
+                return self.ledger.issue(role=self.role, operation=op, nonce=str(p["nonce"]), request=p, issuer=issue)
+            fail("OWNER_OPERATION_FORBIDDEN")
+
+        if op == "issue_worker_runtime_binding":
+            if set(p) != {
+                "delegation","binding_id","nonce","worker_id","runtime_id","runtime_sha256",
+                "task_contract_version","supported_contract_versions","required_capabilities",
+                "worker_capabilities","max_concurrency","ttl_seconds"
+            }:
+                fail("REQUEST_FIELDS_INVALID")
+            parent_art = _artifact(p["delegation"])
+            parent = verifier.owner(parent_art)
+            verify_delegation_scope(parent, policy, now=int(self.clock()))
+            def issue():
+                art = signer.issue_runtime_binding(
+                    parent,
+                    binding_id=str(p["binding_id"]), nonce=str(p["nonce"]),
+                    worker_id=str(p["worker_id"]), runtime_id=str(p["runtime_id"]),
+                    runtime_sha256=str(p["runtime_sha256"]),
+                    task_contract_version=str(p["task_contract_version"]),
+                    supported_contract_versions=tuple(p["supported_contract_versions"]),
+                    required_capabilities=tuple(p["required_capabilities"]),
+                    worker_capabilities=tuple(p["worker_capabilities"]),
+                    max_concurrency=p["max_concurrency"], ttl_seconds=p["ttl_seconds"],
+                )
+                return {"status":"PASS","artifact":art.to_dict()}
+            return self.ledger.issue(role=self.role, operation=op, nonce=str(p["nonce"]), request=p, issuer=issue)
+
+        if op == "issue_worker_runtime_proof":
+            if set(p) != {
+                "delegation","binding","proof_id","nonce","heartbeat_at","adapter_readiness",
+                "resource_readiness","active_claim_count","ttl_seconds"
+            }:
+                fail("REQUEST_FIELDS_INVALID")
+            parent_art = _artifact(p["delegation"])
+            binding_art = _artifact(p["binding"])
+            parent = verifier.owner(parent_art)
+            binding = verifier.machine(binding_art)
+            verify_delegation_scope(parent, policy, now=int(self.clock()))
+            verify_binding_scope(binding, parent, policy, now=int(self.clock()))
+            def issue():
+                art = signer.issue_runtime_proof(
+                    parent, binding,
+                    proof_id=str(p["proof_id"]), nonce=str(p["nonce"]),
+                    heartbeat_at=p["heartbeat_at"],
+                    adapter_readiness=p["adapter_readiness"],
+                    resource_readiness=p["resource_readiness"],
+                    active_claim_count=p["active_claim_count"],
+                    ttl_seconds=p["ttl_seconds"],
+                )
+                return {"status":"PASS","artifact":art.to_dict()}
+            return self.ledger.issue(role=self.role, operation=op, nonce=str(p["nonce"]), request=p, issuer=issue)
+
+        fail("MACHINE_OPERATION_FORBIDDEN")
+
+    def serve_forever(self) -> None:
+        path = self.socket_path
+        path.parent.mkdir(parents=True, exist_ok=True)
+        if path.exists() or path.is_symlink():
+            if path.is_socket():
+                path.unlink()
+            else:
+                fail("SOCKET_PATH_OCCUPIED")
+        sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+        try:
+            sock.bind(str(path))
+            os.chmod(path, 0o600)
+            sock.listen(16)
+            while True:
+                conn, _ = sock.accept()
+                with conn:
+                    try:
+                        uid = _peer_uid(conn)
+                        chunks = []
+                        total = 0
+                        while True:
+                            data = conn.recv(65536)
+                            if not data:
+                                break
+                            total += len(data)
+                            if total > MAX_REQUEST:
+                                fail("REQUEST_TOO_LARGE")
+                            chunks.append(data)
+                            if b"\n" in data:
+                                break
+                        raw = b"".join(chunks)
+                        line = raw.split(b"\n",1)[0]
+                        req = json.loads(line.decode("utf-8"))
+                        result = self.handle(req, peer_uid=uid)
+                        out = {"ok":True,"result":result}
+                    except (OperationalServiceError, OperationalAuthorityError, SingleHostAuthorityError) as exc:
+                        out = {"ok":False,"error":getattr(exc,"code",str(exc))}
+                    except Exception:
+                        out = {"ok":False,"error":"INTERNAL_FAIL_CLOSED"}
+                    conn.sendall(json.dumps(out, sort_keys=True, separators=(",",":")).encode("utf-8")+b"\n")
+        finally:
+            sock.close()
+            try:
+                path.unlink()
+            except FileNotFoundError:
+                pass
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--role", choices=("owner","machine"), required=True)
+    ap.add_argument("--policy", default=str(DEFAULT_POLICY))
+    ap.add_argument("--registry", default=str(DEFAULT_REGISTRY_PATH))
+    ap.add_argument("--owner-key", default=str(DEFAULT_OWNER_KEY))
+    ap.add_argument("--machine-key", default=str(DEFAULT_MACHINE_KEY))
+    ap.add_argument("--socket")
+    ns = ap.parse_args()
+    service = OperationalAuthorityService(
+        role=ns.role,
+        policy_path=Path(ns.policy),
+        registry_path=Path(ns.registry),
+        owner_key_path=Path(ns.owner_key),
+        machine_key_path=Path(ns.machine_key),
+        socket_path=Path(ns.socket) if ns.socket else None,
+    )
+    service.serve_forever()
+    return 0
+
+if __name__ == "__main__":
+    raise SystemExit(main())

active-runtime/app/aios_task_admission_bridge_contract.py

@@ -0,0 +1,87 @@
+"""Bridge contract surface for Task Admission Bootstrap.
+
+This module is intentionally transport-agnostic. The live Bridge may merge
+these routes/operations into its existing authenticated/HTTPS surface, but the
+authorization proof for the authorize operation is the verified delegation
+epoch or Owner signature carried by the request itself.
+
+No handler here can issue TaskPrincipal assertions or WriterLeases. Those remain
+strictly downstream of a real admitted/claimed Agent Task.
+"""
+
+from __future__ import annotations
+
+from typing import Any, Mapping
+
+from aios_task_admission_bootstrap import TaskAdmissionBootstrapService
+
+
+TASK_ADMISSION_ROUTES = {
+    "/v2/task-admission/envelope": "getTaskAdmissionEnvelope",
+    "/v2/task-admission/authorize": "submitTaskAdmissionAuthorization",
+    "/v2/task-admission/status": "getTaskAdmissionStatus",
+}
+
+TASK_ADMISSION_OPERATION_REQUIRED_FIELDS = {
+    "getTaskAdmissionEnvelope": (
+        "idempotency_key",
+        "task_id",
+        "repository",
+        "authority_base_oid",
+        "target_branch",
+        "generation",
+        "execution_digest",
+        "requested_capabilities",
+        "file_allowlist",
+        "risk",
+    ),
+    "submitTaskAdmissionAuthorization": (
+        "envelope_id",
+        "authorization_kind",
+    ),
+    "getTaskAdmissionStatus": ("envelope_id",),
+}
+
+TASK_ADMISSION_OPERATION_OPTIONAL_FIELDS = {
+    "getTaskAdmissionEnvelope": ("expires_in_seconds",),
+    "submitTaskAdmissionAuthorization": (
+        "delegation_epoch_id",
+        "owner_key_id",
+        "signature_base64",
+    ),
+    "getTaskAdmissionStatus": (),
+}
+
+
+class TaskAdmissionBridgeContract:
+    def __init__(self, service: TaskAdmissionBootstrapService) -> None:
+        self.service = service
+
+    @staticmethod
+    def _validate_fields(operation: str, request: Mapping[str, Any]) -> None:
+        required = set(TASK_ADMISSION_OPERATION_REQUIRED_FIELDS[operation])
+        allowed = required | set(TASK_ADMISSION_OPERATION_OPTIONAL_FIELDS[operation])
+        if not required.issubset(request):
+            raise ValueError("TASK_ADMISSION_BRIDGE_REQUIRED_FIELDS_MISSING")
+        if set(request) - allowed:
+            raise ValueError("TASK_ADMISSION_BRIDGE_UNKNOWN_FIELDS")
+
+    def dispatch(self, operation: str, request: Mapping[str, Any]) -> dict[str, Any]:
+        if operation not in TASK_ADMISSION_OPERATION_REQUIRED_FIELDS:
+            raise ValueError("TASK_ADMISSION_BRIDGE_OPERATION_NOT_FOUND")
+        self._validate_fields(operation, request)
+        if operation == "getTaskAdmissionEnvelope":
+            return self.service.create_envelope(request)
+        if operation == "submitTaskAdmissionAuthorization":
+            return self.service.authorize_and_admit(request)
+        if operation == "getTaskAdmissionStatus":
+            return self.service.status(str(request["envelope_id"]))
+        raise ValueError("TASK_ADMISSION_BRIDGE_OPERATION_NOT_FOUND")
+
+    def handlers(self) -> dict[str, Any]:
+        return {
+            operation: (
+                lambda request, operation=operation: self.dispatch(operation, request)
+            )
+            for operation in TASK_ADMISSION_OPERATION_REQUIRED_FIELDS
+        }

active-runtime/app/aios_task_claim_guard_binding_v2.py

@@ -0,0 +1,394 @@
+"""Append-only ClaimGuard binding for the superseded Single-Host child Task."""
+from __future__ import annotations
+
+from datetime import datetime, timezone
+import hashlib
+import json
+import re
+import sqlite3
+from typing import Any, Callable, Mapping
+
+from aios_task_lineage_supersession_initial_projection import (
+    PROJECTION_RECEIPT_SCHEMA,
+    PROJECTION_TABLE,
+    SOURCE_BUSINESS_EXECUTION_DIGEST,
+)
+
+SOURCE_TASK_ID = "TASK-SINGLEHOST-TRUSTROOT-P0-20260904"
+CHILD_TASK_ID = SOURCE_TASK_ID + "-S1"
+WORKER_ID = "p0-task-principal-v15-20260830"
+REPOSITORY = "aios/aios"
+TARGET_BRANCH = "agent/single-host-trust-root-p0-20260904"
+GENERATION = 1
+EXTERNAL_JOB_ID = "job-4e10f92a6a5742518a9f1d8745c845ab"
+BINDING_SCHEMA = "aios.task-claim-guard-binding.v2"
+RECEIPT_SCHEMA = "aios.task-claim-guard-binding-receipt.v2"
+HEX64 = re.compile(r"^[0-9a-f]{64}$")
+
+
+class ClaimGuardBindingError(RuntimeError):
+    def __init__(self, code: str, http_status: int = 409):
+        super().__init__(code)
+        self.code = code
+        self.http_status = int(http_status)
+
+
+def _fail(code: str, status: int = 409) -> None:
+    raise ClaimGuardBindingError(code, status)
+
+
+def canonical_json(value: Any) -> str:
+    return json.dumps(value, ensure_ascii=False, sort_keys=True, separators=(",", ":"), allow_nan=False)
+
+
+def _sha_text(value: str) -> str:
+    return hashlib.sha256(value.encode("utf-8")).hexdigest()
+
+
+def _sha_json(value: Any) -> str:
+    return _sha_text(canonical_json(value))
+
+
+def _now() -> str:
+    return datetime.now(timezone.utc).isoformat()
+
+
+def _row_dict(row: Any) -> dict[str, Any]:
+    if row is None:
+        return {}
+    if hasattr(row, "keys"):
+        return {str(key): row[key] for key in row.keys()}
+    _fail("TASK_ROW_MAPPING_UNAVAILABLE", 500)
+
+
+def _json(raw: Any, code: str) -> Any:
+    if not isinstance(raw, str):
+        _fail(code)
+    try:
+        return json.loads(raw)
+    except (TypeError, ValueError) as exc:
+        raise ClaimGuardBindingError(code) from exc
+
+
+def _default_policy_factory(value: Mapping[str, Any]):
+    try:
+        from aios_single_host_operational_authority import OperationalPolicy
+    except ImportError as exc:
+        raise ClaimGuardBindingError("OPERATIONAL_POLICY_RUNTIME_UNAVAILABLE", 503) from exc
+    return OperationalPolicy.from_mapping(value)
+
+
+def _policy_value(policy: Any, name: str) -> Any:
+    try:
+        return getattr(policy, name)
+    except AttributeError as exc:
+        raise ClaimGuardBindingError("OPERATIONAL_POLICY_FIELDS_INVALID") from exc
+
+
+def _load_projection_evidence(connection, relation) -> dict[str, Any]:
+    try:
+        row = connection.execute(
+            f"SELECT * FROM {PROJECTION_TABLE} WHERE task_id=? AND source_task_id=? "
+            "AND supersession_ordinal=?",
+            (CHILD_TASK_ID, SOURCE_TASK_ID, 1),
+        ).fetchone()
+    except sqlite3.OperationalError as exc:
+        raise ClaimGuardBindingError(
+            "FORMAL_CHILD_INITIAL_PROJECTION_SCHEMA_UNAVAILABLE", 503
+        ) from exc
+    if row is None:
+        _fail("FORMAL_CHILD_INITIAL_PROJECTION_REQUIRED")
+    value = _row_dict(row)
+    receipt = _json(value.get("receipt_json"), "CHILD_PROJECTION_RECEIPT_INVALID")
+    canonical_digest = value.get("canonical_child_execution_digest")
+    source_digest = value.get("source_business_execution_digest")
+    exact = {
+        "task_id": CHILD_TASK_ID,
+        "source_task_id": SOURCE_TASK_ID,
+        "supersession_ordinal": 1,
+        "source_business_execution_digest": SOURCE_BUSINESS_EXECUTION_DIGEST,
+        "external_job_id": EXTERNAL_JOB_ID,
+        "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH,
+        "generation": GENERATION,
+        "owner_decision_sha256": relation["owner_decision_sha256"],
+    }
+    if any(value.get(key) != expected for key, expected in exact.items()):
+        _fail("CHILD_PROJECTION_LINEAGE_MISMATCH")
+    if (
+        not isinstance(canonical_digest, str)
+        or HEX64.fullmatch(canonical_digest) is None
+        or canonical_digest == SOURCE_BUSINESS_EXECUTION_DIGEST
+        or source_digest != SOURCE_BUSINESS_EXECUTION_DIGEST
+        or _sha_text(value["receipt_json"]) != value.get("receipt_sha256")
+        or not isinstance(receipt, Mapping)
+        or receipt.get("schema") != PROJECTION_RECEIPT_SCHEMA
+        or receipt.get("canonical_child_execution_digest") != canonical_digest
+        or receipt.get("source_business_execution_digest") != source_digest
+        or receipt.get("owner_supersession_decision_sha256")
+        != relation["owner_decision_sha256"]
+    ):
+        _fail("CHILD_PROJECTION_RECEIPT_MISMATCH")
+    return {
+        **value,
+        "canonical_child_execution_digest": canonical_digest,
+        "source_business_execution_digest": source_digest,
+    }
+
+
+def install_child_binding(
+    connection,
+    *,
+    policy: Mapping[str, Any],
+    runtime_id: str,
+    runtime_observation_digest: str,
+    task_contract_version: str,
+    policy_factory: Callable[[Mapping[str, Any]], Any] = _default_policy_factory,
+    now: str | None = None,
+) -> dict[str, Any]:
+    """Generate and persist the only permitted child binding from current DB state."""
+    if not isinstance(policy, Mapping):
+        _fail("OPERATIONAL_POLICY_INVALID")
+    if not isinstance(runtime_id, str) or not runtime_id or len(runtime_id) > 512:
+        _fail("RUNTIME_ID_INVALID")
+    if not isinstance(runtime_observation_digest, str) or HEX64.fullmatch(runtime_observation_digest) is None:
+        _fail("RUNTIME_OBSERVATION_DIGEST_INVALID")
+    if not isinstance(task_contract_version, str) or not task_contract_version or len(task_contract_version) > 128:
+        _fail("TASK_CONTRACT_VERSION_INVALID")
+    relation = connection.execute(
+        "SELECT * FROM task_lineage_supersessions WHERE source_task_id=? AND supersession_ordinal=1 AND child_task_id=?",
+        (SOURCE_TASK_ID, CHILD_TASK_ID),
+    ).fetchone()
+    if relation is None:
+        _fail("FORMAL_SUPERSESSION_REQUIRED")
+    projection = _load_projection_evidence(connection, relation)
+    canonical_execution_digest = projection["canonical_child_execution_digest"]
+    task_row = connection.execute("SELECT * FROM tasks WHERE task_id=?", (CHILD_TASK_ID,)).fetchone()
+    if task_row is None:
+        _fail("CHILD_TASK_NOT_FOUND", 404)
+    task = _row_dict(task_row)
+    if (
+        task.get("status") != "QUEUED" or int(task.get("revision", -1)) < 2
+        or int(task.get("attempt", -1)) != 0 or task.get("claimed_by") is not None
+        or task.get("lease_token_hash") is not None or task.get("lease_expires_at") is not None
+        or task.get("result_json") is not None or task.get("verification_json") is not None
+    ):
+        _fail("CHILD_PROJECTED_CLAIMABLE_STATE_REQUIRED")
+    event_rows = connection.execute(
+        "SELECT event_type,payload_json FROM events WHERE task_id=? ORDER BY event_id",
+        (CHILD_TASK_ID,),
+    ).fetchall()
+    if [row[0] for row in event_rows] != [
+        "TASK_CREATED",
+        "TASK_INITIAL_EXECUTION_PROJECTION_AUTHORIZED",
+    ]:
+        _fail("CANONICAL_INITIAL_PROJECTION_REQUIRED")
+    projection_event = _json(
+        event_rows[-1][1], "CANONICAL_INITIAL_PROJECTION_EVENT_INVALID"
+    )
+    if (
+        projection_event.get("source_business_execution_digest")
+        != SOURCE_BUSINESS_EXECUTION_DIGEST
+        or projection_event.get("canonical_child_execution_digest")
+        != canonical_execution_digest
+        or projection_event.get("owner_supersession_decision_sha256")
+        != relation["owner_decision_sha256"]
+        or _sha_json(projection_event) != projection["projection_event_sha256"]
+    ):
+        _fail("CANONICAL_INITIAL_PROJECTION_EVENT_MISMATCH")
+    metadata_raw = task.get("metadata_json")
+    capabilities_raw = task.get("required_capabilities_json")
+    metadata = _json(metadata_raw, "CHILD_METADATA_INVALID")
+    capabilities = _json(capabilities_raw, "CHILD_CAPABILITIES_INVALID")
+    if (
+        _sha_text(metadata_raw) != projection["metadata_sha256"]
+        or _sha_text(capabilities_raw)
+        != projection["required_capabilities_sha256"]
+    ):
+        _fail("CHILD_PROJECTION_TASK_DIGEST_MISMATCH")
+    if not isinstance(metadata, Mapping) or not isinstance(capabilities, list) or not capabilities:
+        _fail("CHILD_PROJECTION_INVALID")
+    if any(not isinstance(value, str) or not value for value in capabilities) or len(set(capabilities)) != len(capabilities):
+        _fail("CHILD_CAPABILITIES_INVALID")
+    execution = metadata.get("execution")
+    if not isinstance(execution, Mapping):
+        _fail("CHILD_EXECUTION_PROJECTION_MISSING")
+    exact_execution = {
+        "task_id": CHILD_TASK_ID, "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH, "generation": GENERATION,
+        "execution_digest": canonical_execution_digest, "job_id": EXTERNAL_JOB_ID,
+    }
+    if any(execution.get(key) != value for key, value in exact_execution.items()):
+        _fail("CHILD_EXECUTION_BINDING_MISMATCH")
+    parsed_policy = policy_factory(dict(policy))
+    if hasattr(parsed_policy, "validate"):
+        parsed_policy.validate()
+    policy_exact = {
+        "task_id": CHILD_TASK_ID, "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH, "generation": GENERATION,
+        "execution_plan_sha256": canonical_execution_digest,
+        "external_job_identity": EXTERNAL_JOB_ID,
+    }
+    if any(_policy_value(parsed_policy, key) != value for key, value in policy_exact.items()):
+        _fail("OPERATIONAL_POLICY_SCOPE_MISMATCH")
+    if tuple(_policy_value(parsed_policy, "allowed_worker_ids")) != (WORKER_ID,):
+        _fail("OPERATIONAL_POLICY_WORKER_MISMATCH")
+    expected_oid = execution.get("expected_branch_oid", execution.get("base_oid"))
+    if expected_oid is not None and _policy_value(parsed_policy, "base_oid") != expected_oid:
+        _fail("OPERATIONAL_POLICY_BASE_OID_MISMATCH")
+    policy_json = canonical_json(dict(policy))
+    policy_sha = _sha_text(policy_json)
+    policy_digest = str(_policy_value(parsed_policy, "digest"))
+    if policy_digest != policy_sha:
+        _fail("OPERATIONAL_POLICY_DIGEST_MISMATCH")
+    binding = {
+        "schema": BINDING_SCHEMA, "task_id": CHILD_TASK_ID,
+        "source_task_id": SOURCE_TASK_ID, "supersession_ordinal": 1,
+        "expected_revision": int(task["revision"]),
+        "metadata_sha256": _sha_text(metadata_raw),
+        "required_capabilities_sha256": _sha_json(sorted(capabilities)),
+        "worker_id": WORKER_ID,
+        "execution_digest": canonical_execution_digest,
+        "canonical_child_execution_digest": canonical_execution_digest,
+        "source_business_execution_digest": SOURCE_BUSINESS_EXECUTION_DIGEST,
+        "repository": REPOSITORY, "target_branch": TARGET_BRANCH, "generation": GENERATION,
+        "external_job_id": EXTERNAL_JOB_ID, "policy_sha256": policy_sha,
+        "policy_digest": policy_digest, "runtime_id": runtime_id,
+        "runtime_observation_digest": runtime_observation_digest,
+        "task_contract_version": task_contract_version,
+        "owner_supersession_decision_sha256": relation["owner_decision_sha256"],
+    }
+    binding_json = canonical_json(binding)
+    binding_sha = _sha_text(binding_json)
+    binding_id = "sha256:" + binding_sha
+    existing = connection.execute(
+        "SELECT binding_sha256 FROM task_claim_guard_bindings_v2 WHERE task_id=?", (CHILD_TASK_ID,)
+    ).fetchone()
+    if existing is not None:
+        if existing[0] != binding_sha:
+            _fail("CLAIM_GUARD_BINDING_ALREADY_EXISTS")
+        receipt = connection.execute(
+            "SELECT receipt_json FROM task_claim_guard_binding_receipts_v2 WHERE binding_id=?", (binding_id,)
+        ).fetchone()
+        if receipt is None:
+            _fail("CLAIM_GUARD_BINDING_RECEIPT_MISSING", 500)
+        return {**json.loads(receipt[0]), "idempotent": True}
+    created_at = now or _now()
+    connection.execute(
+        """INSERT INTO task_claim_guard_bindings_v2(
+        binding_id,task_id,source_task_id,supersession_ordinal,expected_revision,
+        metadata_sha256,required_capabilities_sha256,worker_id,execution_digest,
+        repository,target_branch,generation,policy_json,policy_sha256,binding_json,
+        binding_sha256,created_at) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)""",
+        (binding_id, CHILD_TASK_ID, SOURCE_TASK_ID, 1, binding["expected_revision"],
+         binding["metadata_sha256"], binding["required_capabilities_sha256"], WORKER_ID,
+         canonical_execution_digest, REPOSITORY, TARGET_BRANCH, GENERATION, policy_json, policy_sha,
+         binding_json, binding_sha, created_at),
+    )
+    receipt = {
+        "schema": RECEIPT_SCHEMA, "status": "BOUND", "binding_id": binding_id,
+        "binding_sha256": binding_sha, "task_id": CHILD_TASK_ID,
+        "expected_revision": binding["expected_revision"],
+        "metadata_sha256": binding["metadata_sha256"], "worker_id": WORKER_ID,
+        "execution_digest": canonical_execution_digest,
+        "canonical_child_execution_digest": canonical_execution_digest,
+        "source_business_execution_digest": SOURCE_BUSINESS_EXECUTION_DIGEST,
+        "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH, "generation": GENERATION,
+        "owner_supersession_decision_sha256": relation["owner_decision_sha256"],
+    }
+    receipt_sha = _sha_json(receipt)
+    receipt_id = "sha256:" + receipt_sha
+    connection.execute(
+        "INSERT INTO task_claim_guard_binding_receipts_v2 VALUES(?,?,?,?,?,?)",
+        (receipt_id, binding_id, CHILD_TASK_ID, canonical_json(receipt), receipt_sha, created_at),
+    )
+    return {**receipt, "receipt_id": receipt_id, "receipt_sha256": receipt_sha, "idempotent": False}
+
+
+def _load_child_binding(connection) -> tuple[dict[str, Any], dict[str, Any]]:
+    row = connection.execute(
+        "SELECT * FROM task_claim_guard_bindings_v2 WHERE task_id=?", (CHILD_TASK_ID,)
+    ).fetchone()
+    if row is None:
+        _fail("CHILD_CLAIM_GUARD_BINDING_MISSING")
+    value = _row_dict(row)
+    binding = _json(value["binding_json"], "CLAIM_GUARD_BINDING_INVALID")
+    policy = _json(value["policy_json"], "OPERATIONAL_POLICY_INVALID")
+    relation = connection.execute(
+        "SELECT * FROM task_lineage_supersessions WHERE source_task_id=? "
+        "AND supersession_ordinal=1 AND child_task_id=?",
+        (SOURCE_TASK_ID, CHILD_TASK_ID),
+    ).fetchone()
+    if relation is None:
+        _fail("FORMAL_SUPERSESSION_REQUIRED")
+    projection = _load_projection_evidence(connection, relation)
+    canonical_execution_digest = projection["canonical_child_execution_digest"]
+    if (
+        _sha_text(value["binding_json"]) != value["binding_sha256"]
+        or binding.get("schema") != BINDING_SCHEMA
+        or value.get("execution_digest") != canonical_execution_digest
+        or binding.get("execution_digest") != canonical_execution_digest
+        or binding.get("canonical_child_execution_digest")
+        != canonical_execution_digest
+        or binding.get("source_business_execution_digest")
+        != SOURCE_BUSINESS_EXECUTION_DIGEST
+        or binding.get("owner_supersession_decision_sha256")
+        != relation["owner_decision_sha256"]
+        or policy.get("execution_plan_sha256") != canonical_execution_digest
+    ):
+        _fail("CLAIM_GUARD_BINDING_DIGEST_MISMATCH")
+    task = connection.execute("SELECT * FROM tasks WHERE task_id=?", (CHILD_TASK_ID,)).fetchone()
+    task = _row_dict(task)
+    if (
+        task.get("status") != "QUEUED" or int(task.get("revision", -1)) != int(binding["expected_revision"])
+        or int(task.get("attempt", -1)) != 0 or task.get("claimed_by") is not None
+        or task.get("lease_token_hash") is not None or task.get("lease_expires_at") is not None
+        or _sha_text(task.get("metadata_json", "")) != binding["metadata_sha256"]
+        or task.get("result_json") is not None or task.get("verification_json") is not None
+    ):
+        _fail("CHILD_CLAIM_GUARD_TASK_CAS_MISMATCH")
+    return binding, policy
+
+
+def _run_child_guard(connection, binding, policy_value, agent_id):
+    try:
+        from aios_single_host_operational_authority import OperationalPolicy, OperationalVerifier
+        from aios_singlehost_claim_guard_stage1 import _LiveReader, REGISTRY_PATH
+        from aios_task_claim_guard import ClaimGuard, ClaimGuardError as CoreError
+    except ImportError as exc:
+        raise ClaimGuardBindingError("CLAIM_GUARD_RUNTIME_UNAVAILABLE", 503) from exc
+    policy = OperationalPolicy.from_mapping(policy_value)
+    cfg = {
+        "task_id": CHILD_TASK_ID, "expected_claim_revision": binding["expected_revision"],
+        "task_metadata_sha256": binding["metadata_sha256"],
+        "required_capabilities_sha256": binding["required_capabilities_sha256"],
+        "task_contract_version": binding["task_contract_version"], "worker_id": WORKER_ID,
+        "policy_digest": binding["policy_digest"], "runtime_id": binding["runtime_id"],
+        "runtime_observation_digest": binding["runtime_observation_digest"],
+    }
+    reader = _LiveReader(connection, policy, cfg, now=int(datetime.now(timezone.utc).timestamp()))
+    try:
+        ClaimGuard(policy, OperationalVerifier(REGISTRY_PATH, require_root_owner=True)).validate_in_transaction(
+            reader, task_id=CHILD_TASK_ID,
+            expected_revision=int(binding["expected_revision"]), worker_id=agent_id,
+        )
+    except CoreError as exc:
+        raise ClaimGuardBindingError(exc.code) from exc
+
+
+def enforce_claim_guard(connection, *, task_id: str, agent_id: str) -> None:
+    """Exact two-lineage dispatcher; unrelated Tasks retain their prior behavior."""
+    if task_id == SOURCE_TASK_ID:
+        try:
+            from aios_singlehost_claim_guard_stage1 import enforce_claim_guard as frozen_guard
+        except ImportError as exc:
+            raise ClaimGuardBindingError("FROZEN_SOURCE_CLAIM_GUARD_UNAVAILABLE", 503) from exc
+        frozen_guard(connection, task_id=task_id, agent_id=agent_id)
+        return
+    if task_id != CHILD_TASK_ID:
+        return
+    if agent_id != WORKER_ID:
+        _fail("WORKER_ID_MISMATCH", 403)
+    binding, policy = _load_child_binding(connection)
+    _run_child_guard(connection, binding, policy, agent_id)

active-runtime/app/aios_task_lineage_supersession.py

@@ -0,0 +1,339 @@
+"""One-time, Owner-signed, append-only supersession for one exact Task lineage."""
+from __future__ import annotations
+
+from contextlib import closing
+from datetime import datetime, timedelta, timezone
+import hashlib
+import json
+from pathlib import Path
+import re
+import sqlite3
+from typing import Any, Callable, Mapping, Protocol
+
+DECISION_SCHEMA = "aios.task-lineage-supersession-decision.v1"
+RECEIPT_SCHEMA = "aios.task-lineage-supersession-receipt.v1"
+OWNER_NAMESPACE = "aios-owner-approval-v1"
+OWNER_PRINCIPAL = "aios-task-grant-signer"
+OWNER_KEY_ID = "SHA256:rPqpxfPHtaZPM3zSWojX8Q7VxzCknsYqOokyo/aAM3A"
+SOURCE_TASK_ID = "TASK-SINGLEHOST-TRUSTROOT-P0-20260904"
+CHILD_TASK_ID = SOURCE_TASK_ID + "-S1"
+REPOSITORY = "aios/aios"
+TARGET_BRANCH = "agent/single-host-trust-root-p0-20260904"
+GENERATION = 1
+EXECUTION_DIGEST = "e99bda6a251832eb3865271eb5687af7eea44dd261144cdcdfa57104c0780536"
+EXTERNAL_JOB_ID = "job-4e10f92a6a5742518a9f1d8745c845ab"
+SUPERSESSION_ORDINAL = 1
+CANONICAL_PROFILE = "aios.task-initial-execution.v1"
+CANONICAL_PROFILE_VERSION = 1
+SUPERSESSION_REASON = "formal-lineage-supersession-after-expired-unclaimed-source"
+MAX_TTL = timedelta(minutes=5)
+HEX64 = re.compile(r"^[0-9a-f]{64}$")
+SAFE_ID = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:@/+:-]{2,511}$")
+
+
+class TaskLineageSupersessionError(RuntimeError):
+    def __init__(self, code: str, http_status: int = 409):
+        super().__init__(code)
+        self.code = code
+        self.http_status = int(http_status)
+
+
+class SignatureVerifier(Protocol):
+    def verify(self, *, namespace: str, payload: bytes, signature: str, key_id: str) -> bool: ...
+
+
+def canonical_json(value: Any) -> str:
+    return json.dumps(value, ensure_ascii=False, sort_keys=True, separators=(",", ":"), allow_nan=False)
+
+
+def sha256_text(value: str) -> str:
+    return hashlib.sha256(value.encode("utf-8")).hexdigest()
+
+
+def _fail(code: str, status: int = 409) -> None:
+    raise TaskLineageSupersessionError(code, status)
+
+
+def _utc(value: Any, field: str) -> datetime:
+    if not isinstance(value, str) or not value or len(value) > 80:
+        _fail(field.upper() + "_INVALID", 400)
+    try:
+        result = datetime.fromisoformat(value.replace("Z", "+00:00"))
+    except ValueError as exc:
+        raise TaskLineageSupersessionError(field.upper() + "_INVALID", 400) from exc
+    if result.tzinfo is None:
+        _fail(field.upper() + "_INVALID", 400)
+    return result.astimezone(timezone.utc)
+
+
+def _text(value: Any, field: str, *, maximum: int = 1024) -> str:
+    if not isinstance(value, str) or not value or len(value) > maximum:
+        _fail(field.upper() + "_INVALID", 400)
+    return value
+
+
+def decision_payload(raw: Mapping[str, Any]) -> dict[str, Any]:
+    return {key: raw[key] for key in raw if key != "signature"}
+
+
+DECISION_FIELDS = {
+    "schema", "decision_id", "nonce", "source_task_id",
+    "source_task_identity_sha256", "source_metadata_sha256",
+    "source_expected_status", "source_expected_revision", "source_expected_attempt",
+    "source_expected_claimed_by", "source_expected_lease_token_hash",
+    "source_expected_lease_expires_at", "repository", "target_branch", "generation",
+    "execution_digest", "external_job_id", "child_task_id", "supersession_ordinal",
+    "canonical_projection_profile", "canonical_projection_version", "supersession_reason",
+    "owner_identity", "signature_namespace", "signature_principal", "key_id",
+    "issued_at", "not_before", "expires_at", "one_time_use", "signature",
+}
+
+
+def validate_decision(raw: Mapping[str, Any], *, now: datetime) -> dict[str, Any]:
+    if not isinstance(raw, Mapping) or set(raw) != DECISION_FIELDS:
+        _fail("DECISION_FIELDS_INVALID", 400)
+    exact = {
+        "schema": DECISION_SCHEMA,
+        "source_task_id": SOURCE_TASK_ID,
+        "source_expected_status": "EXPIRED",
+        "source_expected_attempt": 0,
+        "source_expected_claimed_by": None,
+        "source_expected_lease_token_hash": None,
+        "source_expected_lease_expires_at": None,
+        "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH,
+        "generation": GENERATION,
+        "execution_digest": EXECUTION_DIGEST,
+        "external_job_id": EXTERNAL_JOB_ID,
+        "child_task_id": CHILD_TASK_ID,
+        "supersession_ordinal": SUPERSESSION_ORDINAL,
+        "canonical_projection_profile": CANONICAL_PROFILE,
+        "canonical_projection_version": CANONICAL_PROFILE_VERSION,
+        "supersession_reason": SUPERSESSION_REASON,
+        "owner_identity": OWNER_PRINCIPAL,
+        "signature_namespace": OWNER_NAMESPACE,
+        "signature_principal": OWNER_PRINCIPAL,
+        "key_id": OWNER_KEY_ID,
+        "one_time_use": True,
+    }
+    for field, expected in exact.items():
+        if raw[field] != expected:
+            _fail(field.upper() + "_MISMATCH", 403 if field.startswith(("owner", "signature", "key")) else 409)
+    for field in ("decision_id", "nonce"):
+        value = _text(raw[field], field, maximum=256)
+        if SAFE_ID.fullmatch(value) is None:
+            _fail(field.upper() + "_INVALID", 400)
+    for field in ("source_task_identity_sha256", "source_metadata_sha256"):
+        if not isinstance(raw[field], str) or HEX64.fullmatch(raw[field]) is None:
+            _fail(field.upper() + "_INVALID", 400)
+    if type(raw["source_expected_revision"]) is not int or raw["source_expected_revision"] < 1:
+        _fail("SOURCE_EXPECTED_REVISION_INVALID", 400)
+    _text(raw["signature"], "signature", maximum=32768)
+    issued_at = _utc(raw["issued_at"], "issued_at")
+    not_before = _utc(raw["not_before"], "not_before")
+    expires_at = _utc(raw["expires_at"], "expires_at")
+    if issued_at > expires_at or not_before > expires_at:
+        _fail("DECISION_TIME_ORDER_INVALID", 403)
+    if expires_at - issued_at > MAX_TTL or expires_at <= issued_at:
+        _fail("DECISION_TTL_INVALID", 403)
+    now = now.astimezone(timezone.utc)
+    if now < not_before or now >= expires_at:
+        _fail("DECISION_EXPIRED_OR_NOT_YET_VALID", 403)
+    if issued_at > now + timedelta(seconds=5) or now - issued_at > MAX_TTL:
+        _fail("DECISION_ISSUED_AT_INVALID", 403)
+    return {**dict(raw), "issued_at_dt": issued_at, "not_before_dt": not_before, "expires_at_dt": expires_at}
+
+
+def _default_identity_digest(row: sqlite3.Row) -> str:
+    try:
+        from aios_expired_task_recovery import task_identity_digest
+    except ImportError as exc:
+        raise TaskLineageSupersessionError("FORMAL_TASK_IDENTITY_HELPER_UNAVAILABLE", 503) from exc
+    return str(task_identity_digest(row))
+
+
+def _json_object(row: sqlite3.Row, field: str) -> dict[str, Any]:
+    try:
+        value = json.loads(row[field])
+    except (TypeError, ValueError, KeyError) as exc:
+        raise TaskLineageSupersessionError("SOURCE_TASK_JSON_INVALID", 409) from exc
+    if not isinstance(value, Mapping):
+        _fail("SOURCE_TASK_JSON_INVALID")
+    return dict(value)
+
+
+def _verify_source(row: sqlite3.Row, d: Mapping[str, Any], identity_digest: Callable[[sqlite3.Row], str]) -> None:
+    if row["task_id"] != SOURCE_TASK_ID:
+        _fail("SOURCE_TASK_ID_MISMATCH")
+    cas = (
+        row["status"] == "EXPIRED"
+        and int(row["revision"]) == d["source_expected_revision"]
+        and int(row["attempt"]) == 0
+        and row["claimed_by"] is None
+        and row["lease_token_hash"] is None
+        and row["lease_expires_at"] is None
+    )
+    if not cas:
+        _fail("SOURCE_TASK_EXACT_CAS_MISMATCH")
+    metadata_raw = row["metadata_json"]
+    if not isinstance(metadata_raw, str) or sha256_text(metadata_raw) != d["source_metadata_sha256"]:
+        _fail("SOURCE_METADATA_DIGEST_MISMATCH")
+    if identity_digest(row) != d["source_task_identity_sha256"]:
+        _fail("SOURCE_TASK_IDENTITY_DIGEST_MISMATCH")
+    metadata = _json_object(row, "metadata_json")
+    execution = metadata.get("execution")
+    constraints = _json_object(row, "constraints_json")
+    if not isinstance(execution, Mapping):
+        _fail("SOURCE_EXECUTION_BINDING_INVALID")
+    expected = {
+        "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH,
+        "generation": GENERATION,
+        "execution_digest": EXECUTION_DIGEST,
+        "external_job_id": EXTERNAL_JOB_ID,
+        "task_id": SOURCE_TASK_ID,
+    }
+    if any(execution.get(key) != value for key, value in expected.items()):
+        _fail("SOURCE_EXECUTION_BINDING_MISMATCH")
+    if constraints.get("generation") != GENERATION:
+        _fail("SOURCE_GENERATION_CONSTRAINT_MISMATCH")
+
+
+class TaskLineageSupersessionController:
+    def __init__(self, db_path: str | Path, verifier: SignatureVerifier, *, clock=None, identity_digest=None):
+        self.db_path = Path(db_path)
+        self.verifier = verifier
+        self.clock = clock or (lambda: datetime.now(timezone.utc))
+        self.identity_digest = identity_digest or _default_identity_digest
+
+    def _connect(self) -> sqlite3.Connection:
+        connection = sqlite3.connect(self.db_path, timeout=30, isolation_level=None)
+        connection.row_factory = sqlite3.Row
+        connection.execute("PRAGMA foreign_keys=ON")
+        connection.execute("PRAGMA busy_timeout=30000")
+        return connection
+
+    def _now(self) -> datetime:
+        value = self.clock()
+        if value.tzinfo is None:
+            value = value.replace(tzinfo=timezone.utc)
+        return value.astimezone(timezone.utc)
+
+    @staticmethod
+    def _assert_schema(connection: sqlite3.Connection) -> None:
+        required = {"tasks", "events", "task_lineage_supersessions", "task_lineage_supersession_receipts"}
+        actual = {row[0] for row in connection.execute("SELECT name FROM sqlite_master WHERE type='table'")}
+        if not required.issubset(actual):
+            _fail("SUPERSESSION_SCHEMA_UNAVAILABLE", 503)
+        columns = {row[1] for row in connection.execute("PRAGMA table_info(tasks)")}
+        task_columns = {
+            "task_id", "goal", "instructions", "success_criteria_json",
+            "required_capabilities_json", "constraints_json", "metadata_json", "deadline",
+            "priority", "max_attempts", "attempt", "status", "claimed_by",
+            "lease_token_hash", "lease_expires_at", "result_json", "result_digest",
+            "result_idempotency_key", "verification_json", "revision", "created_at", "updated_at",
+        }
+        if not task_columns.issubset(columns):
+            _fail("TASK_SCHEMA_UNSUPPORTED", 503)
+
+    def supersede(self, raw: Mapping[str, Any]) -> dict[str, Any]:
+        now = self._now()
+        decision = validate_decision(raw, now=now)
+        payload_bytes = canonical_json(decision_payload(raw)).encode("utf-8")
+        if not self.verifier.verify(
+            namespace=OWNER_NAMESPACE, payload=payload_bytes,
+            signature=decision["signature"], key_id=decision["key_id"],
+        ):
+            _fail("DECISION_SIGNATURE_INVALID", 403)
+        decision_sha = hashlib.sha256(payload_bytes).hexdigest()
+        now_text = now.isoformat()
+        with closing(self._connect()) as connection:
+            connection.execute("BEGIN IMMEDIATE")
+            try:
+                self._assert_schema(connection)
+                replay = connection.execute(
+                    "SELECT owner_decision_sha256,receipt_json FROM task_lineage_supersession_receipts WHERE decision_id=? OR nonce=?",
+                    (decision["decision_id"], decision["nonce"]),
+                ).fetchone()
+                if replay is not None:
+                    if replay["owner_decision_sha256"] != decision_sha:
+                        _fail("DECISION_REPLAY_MISMATCH")
+                    result = json.loads(replay["receipt_json"])
+                    connection.commit()
+                    return {**result, "idempotent": True}
+                source = connection.execute("SELECT * FROM tasks WHERE task_id=?", (SOURCE_TASK_ID,)).fetchone()
+                if source is None:
+                    _fail("SOURCE_TASK_NOT_FOUND", 404)
+                _verify_source(source, decision, self.identity_digest)
+                if connection.execute(
+                    "SELECT 1 FROM task_lineage_supersessions WHERE source_task_id=? AND supersession_ordinal=?",
+                    (SOURCE_TASK_ID, SUPERSESSION_ORDINAL),
+                ).fetchone():
+                    _fail("SUPERSESSION_ALREADY_EXISTS")
+                if connection.execute("SELECT 1 FROM tasks WHERE task_id=?", (CHILD_TASK_ID,)).fetchone():
+                    _fail("CHILD_TASK_ALREADY_EXISTS")
+                connection.execute(
+                    """INSERT INTO tasks(
+                    task_id,goal,instructions,success_criteria_json,required_capabilities_json,
+                    constraints_json,metadata_json,deadline,priority,max_attempts,attempt,status,
+                    claimed_by,lease_token_hash,lease_expires_at,result_json,result_digest,
+                    result_idempotency_key,verification_json,revision,created_at,updated_at)
+                    VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)""",
+                    (
+                        CHILD_TASK_ID, source["goal"], source["instructions"], source["success_criteria_json"],
+                        "[]", source["constraints_json"], "{}", None, source["priority"], source["max_attempts"],
+                        0, "QUEUED", None, None, None, None, None, None, None, 1, now_text, now_text,
+                    ),
+                )
+                connection.execute(
+                    """INSERT INTO task_lineage_supersessions(
+                    source_task_id,supersession_ordinal,child_task_id,source_task_identity_sha256,
+                    source_metadata_sha256,owner_decision_sha256,decision_id,created_at)
+                    VALUES(?,?,?,?,?,?,?,?)""",
+                    (SOURCE_TASK_ID, SUPERSESSION_ORDINAL, CHILD_TASK_ID,
+                     decision["source_task_identity_sha256"], decision["source_metadata_sha256"],
+                     decision_sha, decision["decision_id"], now_text),
+                )
+                event_payload = {
+                    "task_id": CHILD_TASK_ID, "supersedes_task_id": SOURCE_TASK_ID,
+                    "supersession_ordinal": SUPERSESSION_ORDINAL,
+                    "source_task_identity_sha256": decision["source_task_identity_sha256"],
+                    "source_metadata_sha256": decision["source_metadata_sha256"],
+                    "owner_supersession_decision_sha256": decision_sha,
+                    "canonical_projection_profile": CANONICAL_PROFILE,
+                    "canonical_projection_version": CANONICAL_PROFILE_VERSION,
+                }
+                connection.execute(
+                    "INSERT INTO events(task_id,agent_id,event_type,payload_json,created_at) VALUES(?,?,?,?,?)",
+                    (CHILD_TASK_ID, None, "TASK_CREATED", canonical_json(event_payload), now_text),
+                )
+                receipt = {
+                    "schema": RECEIPT_SCHEMA, "status": "SUPERSEDED",
+                    "decision_id": decision["decision_id"], "owner_decision_sha256": decision_sha,
+                    "source_task_id": SOURCE_TASK_ID, "source_task_identity_sha256": decision["source_task_identity_sha256"],
+                    "source_metadata_sha256": decision["source_metadata_sha256"],
+                    "source_status": "EXPIRED", "source_revision": decision["source_expected_revision"],
+                    "source_attempt": 0, "source_history_preserved": True,
+                    "child_task_id": CHILD_TASK_ID, "supersession_ordinal": SUPERSESSION_ORDINAL,
+                    "child_status": "QUEUED", "child_revision": 1, "child_attempt": 0,
+                    "canonical_projection_profile": CANONICAL_PROFILE,
+                    "canonical_projection_version": CANONICAL_PROFILE_VERSION,
+                    "exact_identity_cas": True, "one_time_use": True,
+                    "owner_signature_namespace": OWNER_NAMESPACE,
+                    "owner_signature_principal": OWNER_PRINCIPAL,
+                    "owner_signature_key_id": OWNER_KEY_ID,
+                    "owner_signature_sha256": sha256_text(decision["signature"]),
+                }
+                connection.execute(
+                    """INSERT INTO task_lineage_supersession_receipts(
+                    decision_id,nonce,source_task_id,supersession_ordinal,child_task_id,
+                    owner_decision_sha256,decision_json,receipt_json,consumed_at)
+                    VALUES(?,?,?,?,?,?,?,?,?)""",
+                    (decision["decision_id"], decision["nonce"], SOURCE_TASK_ID, SUPERSESSION_ORDINAL,
+                     CHILD_TASK_ID, decision_sha, canonical_json(dict(raw)), canonical_json(receipt), now_text),
+                )
+                connection.commit()
+                return {**receipt, "idempotent": False}
+            except Exception:
+                connection.rollback()
+                raise

active-runtime/app/aios_task_lineage_supersession_initial_projection.py

@@ -0,0 +1,548 @@
+"""Canonical initial projection for the exact Single-Host supersession child.
+
+The source business execution digest is lineage evidence.  It is deliberately
+not used as the child execution-envelope digest: the canonical envelope binds
+the child Task id and therefore has its own server-derived digest.
+"""
+from __future__ import annotations
+
+from dataclasses import dataclass
+import hashlib
+import json
+import sqlite3
+from typing import Any, Mapping
+
+from aios_agent_task_initial_execution_projection import (
+    InitialExecutionProjectionError,
+    InitialExecutionProjectionRequest,
+    InitialExecutionProjectionStore,
+    RUNTIME_CAPABILITY_RE,
+    _now,
+    _require_string,
+    _required_authorization_id,
+)
+from aios_online_agent_execution import (
+    ExecutionProjectionError,
+    GovernedExecutionBinding,
+    validate_execution_envelope,
+)
+from aios_task_lineage_supersession import (
+    CANONICAL_PROFILE,
+    CANONICAL_PROFILE_VERSION,
+    CHILD_TASK_ID,
+    DECISION_SCHEMA,
+    EXECUTION_DIGEST as SOURCE_BUSINESS_EXECUTION_DIGEST,
+    EXTERNAL_JOB_ID,
+    GENERATION,
+    OWNER_KEY_ID,
+    OWNER_NAMESPACE,
+    OWNER_PRINCIPAL,
+    RECEIPT_SCHEMA as SUPERSESSION_RECEIPT_SCHEMA,
+    REPOSITORY,
+    SOURCE_TASK_ID,
+    SUPERSESSION_ORDINAL,
+    TARGET_BRANCH,
+    canonical_json,
+    decision_payload,
+)
+
+
+PROJECTION_INTENT_SCHEMA = "aios.task-lineage-supersession-initial-projection-intent.v1"
+PROJECTION_RECEIPT_SCHEMA = "aios.task-lineage-supersession-initial-projection-receipt.v1"
+PROJECTION_IDEMPOTENCY_KEY = "task-lineage-supersession-s1-initial-projection-v1"
+PROJECTION_REASON = "canonical-initial-projection-for-formal-supersession-child"
+PROJECTION_TABLE = "task_lineage_supersession_initial_projections"
+
+
+def _sha_text(value: str) -> str:
+    return hashlib.sha256(value.encode("utf-8")).hexdigest()
+
+
+def _sha_json(value: Any) -> str:
+    return _sha_text(canonical_json(value))
+
+
+def _json_object(raw: Any, code: str) -> dict[str, Any]:
+    if not isinstance(raw, str):
+        raise InitialExecutionProjectionError(code, 409)
+    try:
+        value = json.loads(raw)
+    except (TypeError, ValueError) as exc:
+        raise InitialExecutionProjectionError(code, 409) from exc
+    if not isinstance(value, Mapping):
+        raise InitialExecutionProjectionError(code, 409)
+    return dict(value)
+
+
+@dataclass(frozen=True)
+class SupersessionChildProjectionIntent:
+    """Caller-selectable portion of the exact child projection.
+
+    Task identity, CAS values, Job identity, projection profile, reason and
+    idempotency are intentionally absent from the request and server-owned.
+    """
+
+    adapter: str
+    required_capability: str
+    authorization_id: str
+
+    @classmethod
+    def from_mapping(
+        cls, value: Mapping[str, Any]
+    ) -> "SupersessionChildProjectionIntent":
+        if not isinstance(value, Mapping) or set(value) != {
+            "adapter",
+            "required_capability",
+            "authorization_id",
+        }:
+            raise InitialExecutionProjectionError(
+                "SUPERSESSION_INITIAL_PROJECTION_FIELDS_INVALID", 400
+            )
+        adapter = _require_string(value["adapter"], "RUNTIME_ADAPTER_INVALID")
+        capability = _require_string(
+            value["required_capability"],
+            "RUNTIME_CAPABILITY_INVALID",
+            RUNTIME_CAPABILITY_RE,
+        )
+        if adapter not in {"hermes", "openclaw"} or capability != f"agent.runtime.{adapter}":
+            raise InitialExecutionProjectionError("RUNTIME_CAPABILITY_MISMATCH", 400)
+        authorization_id = _require_string(
+            value["authorization_id"], "AUTHORIZATION_ID_INVALID"
+        )
+        return cls(adapter, capability, authorization_id)
+
+    def public(self) -> dict[str, Any]:
+        return {
+            "schema": PROJECTION_INTENT_SCHEMA,
+            "source_task_id": SOURCE_TASK_ID,
+            "child_task_id": CHILD_TASK_ID,
+            "supersession_ordinal": SUPERSESSION_ORDINAL,
+            "canonical_projection_profile": CANONICAL_PROFILE,
+            "canonical_projection_version": CANONICAL_PROFILE_VERSION,
+            "expected_status": "QUEUED",
+            "expected_revision": 1,
+            "expected_attempt": 0,
+            "expected_metadata_sha256": _sha_json({}),
+            "expected_required_capabilities_sha256": _sha_json([]),
+            "expected_job_id": EXTERNAL_JOB_ID,
+            "adapter": self.adapter,
+            "required_capability": self.required_capability,
+            "authorization_id": self.authorization_id,
+            "idempotency_key": PROJECTION_IDEMPOTENCY_KEY,
+            "reason": PROJECTION_REASON,
+        }
+
+    def initial_request(self, canonical_execution_digest: str) -> InitialExecutionProjectionRequest:
+        return InitialExecutionProjectionRequest.from_mapping(
+            {
+                "expected_status": "QUEUED",
+                "expected_revision": 1,
+                "expected_attempt": 0,
+                "expected_metadata_sha256": _sha_json({}),
+                "expected_required_capabilities_sha256": _sha_json([]),
+                "expected_job_id": EXTERNAL_JOB_ID,
+                "expected_execution_digest": canonical_execution_digest,
+                "required_capability": self.required_capability,
+                "adapter": self.adapter,
+                "authorization_id": self.authorization_id,
+                "idempotency_key": PROJECTION_IDEMPOTENCY_KEY,
+                "reason": PROJECTION_REASON,
+            }
+        )
+
+
+def _table_names(connection: sqlite3.Connection) -> set[str]:
+    return {
+        str(row[0])
+        for row in connection.execute(
+            "SELECT name FROM sqlite_master WHERE type='table'"
+        )
+    }
+
+
+def _load_lineage_context(
+    connection: sqlite3.Connection, *, expect_projected: bool
+) -> dict[str, Any]:
+    required_tables = {
+        "tasks",
+        "events",
+        "task_lineage_supersessions",
+        "task_lineage_supersession_receipts",
+        PROJECTION_TABLE,
+    }
+    if not required_tables.issubset(_table_names(connection)):
+        raise InitialExecutionProjectionError(
+            "SUPERSESSION_INITIAL_PROJECTION_SCHEMA_UNAVAILABLE", 503
+        )
+    relation = connection.execute(
+        "SELECT * FROM task_lineage_supersessions "
+        "WHERE source_task_id=? AND supersession_ordinal=? AND child_task_id=?",
+        (SOURCE_TASK_ID, SUPERSESSION_ORDINAL, CHILD_TASK_ID),
+    ).fetchone()
+    if relation is None:
+        raise InitialExecutionProjectionError("FORMAL_SUPERSESSION_REQUIRED", 409)
+    receipt_row = connection.execute(
+        "SELECT * FROM task_lineage_supersession_receipts "
+        "WHERE decision_id=? AND source_task_id=? AND supersession_ordinal=? "
+        "AND child_task_id=?",
+        (
+            relation["decision_id"],
+            SOURCE_TASK_ID,
+            SUPERSESSION_ORDINAL,
+            CHILD_TASK_ID,
+        ),
+    ).fetchone()
+    if receipt_row is None:
+        raise InitialExecutionProjectionError("SUPERSESSION_RECEIPT_REQUIRED", 409)
+    decision = _json_object(receipt_row["decision_json"], "SUPERSESSION_DECISION_INVALID")
+    receipt = _json_object(receipt_row["receipt_json"], "SUPERSESSION_RECEIPT_INVALID")
+    decision_sha256 = _sha_text(canonical_json(decision_payload(decision)))
+    exact_decision = {
+        "schema": DECISION_SCHEMA,
+        "source_task_id": SOURCE_TASK_ID,
+        "child_task_id": CHILD_TASK_ID,
+        "supersession_ordinal": SUPERSESSION_ORDINAL,
+        "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH,
+        "generation": GENERATION,
+        "execution_digest": SOURCE_BUSINESS_EXECUTION_DIGEST,
+        "external_job_id": EXTERNAL_JOB_ID,
+        "canonical_projection_profile": CANONICAL_PROFILE,
+        "canonical_projection_version": CANONICAL_PROFILE_VERSION,
+        "owner_identity": OWNER_PRINCIPAL,
+        "signature_namespace": OWNER_NAMESPACE,
+        "signature_principal": OWNER_PRINCIPAL,
+        "key_id": OWNER_KEY_ID,
+        "one_time_use": True,
+    }
+    if any(decision.get(key) != expected for key, expected in exact_decision.items()):
+        raise InitialExecutionProjectionError(
+            "SUPERSESSION_DECISION_SCOPE_MISMATCH", 409
+        )
+    if (
+        decision_sha256 != relation["owner_decision_sha256"]
+        or decision_sha256 != receipt_row["owner_decision_sha256"]
+        or decision.get("source_task_identity_sha256")
+        != relation["source_task_identity_sha256"]
+        or decision.get("source_metadata_sha256") != relation["source_metadata_sha256"]
+        or receipt.get("schema") != SUPERSESSION_RECEIPT_SCHEMA
+        or receipt.get("owner_decision_sha256") != decision_sha256
+        or receipt.get("source_task_id") != SOURCE_TASK_ID
+        or receipt.get("child_task_id") != CHILD_TASK_ID
+        or receipt.get("supersession_ordinal") != SUPERSESSION_ORDINAL
+    ):
+        raise InitialExecutionProjectionError(
+            "SUPERSESSION_LINEAGE_EVIDENCE_MISMATCH", 409
+        )
+    events = connection.execute(
+        "SELECT event_type,payload_json FROM events WHERE task_id=? ORDER BY event_id",
+        (CHILD_TASK_ID,),
+    ).fetchall()
+    expected_events = ["TASK_CREATED"]
+    if expect_projected:
+        expected_events.append("TASK_INITIAL_EXECUTION_PROJECTION_AUTHORIZED")
+    if [str(row["event_type"]) for row in events] != expected_events:
+        raise InitialExecutionProjectionError(
+            "SUPERSESSION_CHILD_EVENT_CHAIN_INVALID", 409
+        )
+    created = _json_object(events[0]["payload_json"], "SUPERSESSION_CREATED_EVENT_INVALID")
+    exact_created = {
+        "task_id": CHILD_TASK_ID,
+        "supersedes_task_id": SOURCE_TASK_ID,
+        "supersession_ordinal": SUPERSESSION_ORDINAL,
+        "source_task_identity_sha256": relation["source_task_identity_sha256"],
+        "source_metadata_sha256": relation["source_metadata_sha256"],
+        "owner_supersession_decision_sha256": decision_sha256,
+        "canonical_projection_profile": CANONICAL_PROFILE,
+        "canonical_projection_version": CANONICAL_PROFILE_VERSION,
+    }
+    if any(created.get(key) != expected for key, expected in exact_created.items()):
+        raise InitialExecutionProjectionError(
+            "SUPERSESSION_CREATED_EVENT_SCOPE_MISMATCH", 409
+        )
+    return {
+        "source_task_identity_sha256": relation["source_task_identity_sha256"],
+        "source_metadata_sha256": relation["source_metadata_sha256"],
+        "owner_decision_sha256": decision_sha256,
+    }
+
+
+def _validate_canonical_child_execution(
+    resolved: Mapping[str, Any],
+    *,
+    intent: SupersessionChildProjectionIntent,
+    runtime_input: Mapping[str, Any],
+) -> dict[str, Any]:
+    try:
+        binding = GovernedExecutionBinding.from_mapping(resolved)
+        execution = validate_execution_envelope(resolved, binding=binding)
+    except ExecutionProjectionError as exc:
+        raise InitialExecutionProjectionError(
+            "SUPERSESSION_CANONICAL_EXECUTION_INVALID", 409
+        ) from exc
+    exact_binding = {
+        "task_id": CHILD_TASK_ID,
+        "job_id": EXTERNAL_JOB_ID,
+        "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH,
+        "generation": GENERATION,
+    }
+    if any(execution.get(key) != expected for key, expected in exact_binding.items()):
+        raise InitialExecutionProjectionError(
+            "SUPERSESSION_CANONICAL_EXECUTION_BINDING_MISMATCH", 409
+        )
+    if (
+        execution.get("action") != "agent_runtime"
+        or execution.get("adapter") != intent.adapter
+        or execution.get("capability_scope") != [intent.required_capability]
+        or execution.get("runtime_input") != dict(runtime_input)
+        or execution.get("change_set") != []
+        or execution.get("verification") != []
+        or execution.get("governance", {}).get("writer_lease") is not False
+    ):
+        raise InitialExecutionProjectionError(
+            "SUPERSESSION_AGENT_RUNTIME_ENVELOPE_INVALID", 409
+        )
+    if execution["execution_digest"] == SOURCE_BUSINESS_EXECUTION_DIGEST:
+        raise InitialExecutionProjectionError(
+            "CHILD_CANONICAL_DIGEST_COLLIDES_WITH_SOURCE_BUSINESS_DIGEST", 409
+        )
+    return execution
+
+
+class _SupersessionProjectionTransactionStore(InitialExecutionProjectionStore):
+    """Per-invocation store that adds immutable lineage evidence atomically."""
+
+    allows_supersession_child = True
+
+    def __init__(self, db_path, resolved: Mapping[str, Any], intent):
+        self._resolved = dict(resolved)
+        self.intent = intent
+        super().__init__(db_path, self._resolve_once)
+
+    def _resolve_once(self, *_args):
+        return dict(self._resolved)
+
+    def _projection_event_extension(
+        self, connection, task_id, request, execution, applied_revision
+    ):
+        if task_id != CHILD_TASK_ID:
+            raise InitialExecutionProjectionError(
+                "SUPERSESSION_CHILD_TASK_ID_MISMATCH", 409
+            )
+        context = _load_lineage_context(connection, expect_projected=False)
+        return {
+            "source_task_id": SOURCE_TASK_ID,
+            "supersession_ordinal": SUPERSESSION_ORDINAL,
+            "source_task_identity_sha256": context["source_task_identity_sha256"],
+            "source_metadata_sha256": context["source_metadata_sha256"],
+            "owner_supersession_decision_sha256": context["owner_decision_sha256"],
+            "source_business_execution_digest": SOURCE_BUSINESS_EXECUTION_DIGEST,
+            "canonical_child_execution_digest": execution["execution_digest"],
+            "canonical_projection_profile": CANONICAL_PROFILE,
+            "canonical_projection_version": CANONICAL_PROFILE_VERSION,
+        }
+
+    def _insert_projection_extension(
+        self,
+        connection,
+        task_id,
+        request,
+        execution,
+        event_payload,
+        applied_revision,
+    ):
+        context = _load_lineage_context(connection, expect_projected=True)
+        task = connection.execute(
+            "SELECT metadata_json,required_capabilities_json FROM tasks WHERE task_id=?",
+            (CHILD_TASK_ID,),
+        ).fetchone()
+        if task is None:
+            raise InitialExecutionProjectionError("TASK_NOT_FOUND", 404)
+        intent_json = canonical_json(self.intent.public())
+        intent_sha256 = _sha_text(intent_json)
+        receipt = {
+            "schema": PROJECTION_RECEIPT_SCHEMA,
+            "projection_id": "sha256:" + intent_sha256,
+            "task_id": CHILD_TASK_ID,
+            "source_task_id": SOURCE_TASK_ID,
+            "supersession_ordinal": SUPERSESSION_ORDINAL,
+            "source_task_identity_sha256": context["source_task_identity_sha256"],
+            "source_metadata_sha256": context["source_metadata_sha256"],
+            "owner_supersession_decision_sha256": context["owner_decision_sha256"],
+            "source_business_execution_digest": SOURCE_BUSINESS_EXECUTION_DIGEST,
+            "canonical_child_execution_digest": execution["execution_digest"],
+            "external_job_id": EXTERNAL_JOB_ID,
+            "repository": REPOSITORY,
+            "target_branch": TARGET_BRANCH,
+            "generation": GENERATION,
+            "adapter": self.intent.adapter,
+            "required_capability": self.intent.required_capability,
+            "expected_revision": 1,
+            "applied_revision": applied_revision,
+            "attempt": 0,
+            "metadata_sha256": _sha_text(task["metadata_json"]),
+            "required_capabilities_sha256": _sha_text(
+                task["required_capabilities_json"]
+            ),
+            "projection_event_sha256": _sha_json(dict(event_payload)),
+        }
+        receipt_json = canonical_json(receipt)
+        receipt_sha256 = _sha_text(receipt_json)
+        connection.execute(
+            f"""INSERT INTO {PROJECTION_TABLE}(
+            projection_id,task_id,source_task_id,supersession_ordinal,
+            intent_sha256,intent_json,owner_decision_sha256,
+            source_task_identity_sha256,source_metadata_sha256,
+            source_business_execution_digest,canonical_child_execution_digest,
+            external_job_id,repository,target_branch,generation,adapter,
+            required_capability,expected_revision,applied_revision,metadata_sha256,
+            required_capabilities_sha256,projection_event_sha256,receipt_json,
+            receipt_sha256,created_at)
+            VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)""",
+            (
+                receipt["projection_id"],
+                CHILD_TASK_ID,
+                SOURCE_TASK_ID,
+                SUPERSESSION_ORDINAL,
+                intent_sha256,
+                intent_json,
+                context["owner_decision_sha256"],
+                context["source_task_identity_sha256"],
+                context["source_metadata_sha256"],
+                SOURCE_BUSINESS_EXECUTION_DIGEST,
+                execution["execution_digest"],
+                EXTERNAL_JOB_ID,
+                REPOSITORY,
+                TARGET_BRANCH,
+                GENERATION,
+                self.intent.adapter,
+                self.intent.required_capability,
+                1,
+                applied_revision,
+                receipt["metadata_sha256"],
+                receipt["required_capabilities_sha256"],
+                receipt["projection_event_sha256"],
+                receipt_json,
+                receipt_sha256,
+                _now(),
+            ),
+        )
+
+
+class SupersessionChildInitialProjectionStore:
+    """Server-owned adapter from exact supersession lineage to current ABI."""
+
+    def __init__(self, db_path, resolver):
+        self.db_path = db_path
+        self.resolver = resolver
+
+    def _connect(self):
+        connection = sqlite3.connect(self.db_path, timeout=30.0)
+        connection.row_factory = sqlite3.Row
+        connection.execute("PRAGMA foreign_keys=ON")
+        connection.execute("PRAGMA busy_timeout=30000")
+        return connection
+
+    @staticmethod
+    def _replay(connection, intent: SupersessionChildProjectionIntent):
+        if PROJECTION_TABLE not in _table_names(connection):
+            raise InitialExecutionProjectionError(
+                "SUPERSESSION_INITIAL_PROJECTION_SCHEMA_UNAVAILABLE", 503
+            )
+        row = connection.execute(
+            f"SELECT * FROM {PROJECTION_TABLE} WHERE task_id=?", (CHILD_TASK_ID,)
+        ).fetchone()
+        if row is None:
+            tables = _table_names(connection)
+            if "task_initial_execution_projections" in tables:
+                generic = connection.execute(
+                    "SELECT 1 FROM task_initial_execution_projections "
+                    "WHERE task_id=? AND idempotency_key=?",
+                    (CHILD_TASK_ID, PROJECTION_IDEMPOTENCY_KEY),
+                ).fetchone()
+                if generic is not None:
+                    raise InitialExecutionProjectionError(
+                        "SUPERSESSION_PROJECTION_RECEIPT_MISSING", 500
+                    )
+            return None
+        intent_sha256 = _sha_json(intent.public())
+        if row["intent_sha256"] != intent_sha256:
+            raise InitialExecutionProjectionError(
+                "SUPERSESSION_INITIAL_PROJECTION_INTENT_CONFLICT", 409
+            )
+        receipt = _json_object(
+            row["receipt_json"], "SUPERSESSION_PROJECTION_RECEIPT_INVALID"
+        )
+        if (
+            _sha_text(row["receipt_json"]) != row["receipt_sha256"]
+            or receipt.get("schema") != PROJECTION_RECEIPT_SCHEMA
+            or receipt.get("canonical_child_execution_digest")
+            != row["canonical_child_execution_digest"]
+        ):
+            raise InitialExecutionProjectionError(
+                "SUPERSESSION_PROJECTION_RECEIPT_DIGEST_MISMATCH", 500
+            )
+        _load_lineage_context(connection, expect_projected=True)
+        task = connection.execute(
+            "SELECT * FROM tasks WHERE task_id=?", (CHILD_TASK_ID,)
+        ).fetchone()
+        if (
+            task is None
+            or task["status"] != "QUEUED"
+            or int(task["revision"]) != int(row["applied_revision"])
+            or int(task["attempt"]) != 0
+            or task["claimed_by"] is not None
+            or task["lease_token_hash"] is not None
+            or task["lease_expires_at"] is not None
+            or _sha_text(task["metadata_json"]) != row["metadata_sha256"]
+            or _sha_text(task["required_capabilities_json"])
+            != row["required_capabilities_sha256"]
+        ):
+            raise InitialExecutionProjectionError(
+                "SUPERSESSION_PROJECTED_TASK_CAS_MISMATCH", 409
+            )
+        return {**receipt, "idempotent": True}
+
+    def project(self, value: Mapping[str, Any]) -> dict[str, Any]:
+        intent = SupersessionChildProjectionIntent.from_mapping(value)
+        if intent.authorization_id != _required_authorization_id():
+            raise InitialExecutionProjectionError("AUTHORIZATION_ID_MISMATCH", 403)
+        with self._connect() as connection:
+            replay = self._replay(connection, intent)
+            if replay is not None:
+                return replay
+            probe_request = intent.initial_request("0" * 64)
+            probe_store = _SupersessionProjectionTransactionStore(
+                self.db_path, {}, intent
+            )
+            task, _, _, _ = probe_store._load_and_validate(
+                connection, CHILD_TASK_ID, probe_request
+            )
+            _load_lineage_context(connection, expect_projected=False)
+            runtime_input = probe_store._runtime_input(task)
+        resolved = dict(
+            self.resolver(
+                CHILD_TASK_ID,
+                EXTERNAL_JOB_ID,
+                intent.required_capability,
+                intent.adapter,
+                runtime_input,
+            )
+        )
+        execution = _validate_canonical_child_execution(
+            resolved, intent=intent, runtime_input=runtime_input
+        )
+        store = _SupersessionProjectionTransactionStore(
+            self.db_path, resolved, intent
+        )
+        result = store.project(
+            CHILD_TASK_ID, intent.initial_request(execution["execution_digest"])
+        )
+        with self._connect() as connection:
+            receipt = self._replay(connection, intent)
+            if receipt is None:
+                raise InitialExecutionProjectionError(
+                    "SUPERSESSION_PROJECTION_RECEIPT_MISSING", 500
+                )
+        return {**receipt, "idempotent": bool(result["idempotent"])}

active-runtime/app/aios_task_lineage_supersession_owner_authority.py

@@ -0,0 +1,221 @@
+"""Fixed Owner operation for one exact Task-lineage supersession.
+
+This staging overlay deliberately extends the installed single-host operational
+authority instead of exposing a generic signing primitive.  The caller can
+only provide the three live CAS values which cannot be known at build time.
+Every authority, lineage and execution field is constructed server-side.
+"""
+from __future__ import annotations
+
+import re
+import secrets
+from typing import Any, Callable, Mapping
+
+from aios_single_host_authority import OWNER_IDENTITY, OWNER_NAMESPACE, sha256_json
+from aios_single_host_operational_authority import (
+    OperationalAuthorityError,
+    OperationalOwnerAuthority,
+    OperationalPolicy,
+    SignedOperationalArtifact,
+)
+
+TASK_LINEAGE_SUPERSESSION_OPERATION = "issue_task_lineage_supersession"
+TASK_LINEAGE_SUPERSESSION_SCHEMA = "aios.task-lineage-supersession-decision.v1"
+SOURCE_TASK_ID = "TASK-SINGLEHOST-TRUSTROOT-P0-20260904"
+CHILD_TASK_ID = SOURCE_TASK_ID + "-S1"
+SUPERSESSION_ORDINAL = 1
+REPOSITORY = "aios/aios"
+TARGET_BRANCH = "agent/single-host-trust-root-p0-20260904"
+GENERATION = 1
+SOURCE_BUSINESS_EXECUTION_DIGEST = (
+    "e99bda6a251832eb3865271eb5687af7eea44dd261144cdcdfa57104c0780536"
+)
+EXTERNAL_JOB_IDENTITY = "job-4e10f92a6a5742518a9f1d8745c845ab"
+CANONICAL_PROJECTION_PROFILE = "aios.task-initial-execution.v1"
+CANONICAL_PROJECTION_VERSION = 1
+SUPERSESSION_REASON = "formal-lineage-supersession-after-expired-unclaimed-source"
+DECISION_TTL_SECONDS = 300
+
+HEX64 = re.compile(r"^[0-9a-f]{64}$")
+SAFE_TOKEN = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:@/+:-]{2,511}$")
+
+
+def _fail(code: str) -> None:
+    raise OperationalAuthorityError(code)
+
+
+def _assert_fixed_policy(policy: OperationalPolicy) -> None:
+    """Refuse issuance if the live policy is not the approved source scope."""
+    policy.validate()
+    exact = {
+        "task_id": SOURCE_TASK_ID,
+        "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH,
+        "generation": GENERATION,
+        "execution_plan_sha256": SOURCE_BUSINESS_EXECUTION_DIGEST,
+        "external_job_identity": EXTERNAL_JOB_IDENTITY,
+    }
+    if any(getattr(policy, field) != expected for field, expected in exact.items()):
+        _fail("TASK_LINEAGE_SUPERSESSION_POLICY_MISMATCH")
+    if policy.maximum_recovery_decision_ttl_seconds < DECISION_TTL_SECONDS:
+        _fail("TASK_LINEAGE_SUPERSESSION_POLICY_TTL_TOO_NARROW")
+
+
+TASK_LINEAGE_SUPERSESSION_FIELDS = {
+    "schema",
+    "decision_id",
+    "nonce",
+    "source_task_id",
+    "source_task_identity_sha256",
+    "source_metadata_sha256",
+    "source_expected_status",
+    "source_expected_revision",
+    "source_expected_attempt",
+    "source_expected_claimed_by",
+    "source_expected_lease_token_hash",
+    "source_expected_lease_expires_at",
+    "repository",
+    "target_branch",
+    "generation",
+    "source_business_execution_digest",
+    "external_job_identity",
+    "child_task_id",
+    "supersession_ordinal",
+    "canonical_projection_profile",
+    "canonical_projection_version",
+    "supersession_reason",
+    "owner_identity",
+    "policy_digest",
+    "one_time_use",
+    "issued_at",
+    "not_before",
+    "expires_at",
+    "signature_namespace",
+    "signature_key_id",
+    "canonical_payload_digest",
+}
+
+
+def verify_task_lineage_supersession_scope(
+    decision: Mapping[str, Any],
+    policy: OperationalPolicy,
+    *,
+    now: int,
+) -> None:
+    """Validate a signature-verified decision against the fixed source scope."""
+    _assert_fixed_policy(policy)
+    if not isinstance(decision, Mapping) or set(decision) != TASK_LINEAGE_SUPERSESSION_FIELDS:
+        _fail("TASK_LINEAGE_SUPERSESSION_FIELDS_INVALID")
+    exact = {
+        "schema": TASK_LINEAGE_SUPERSESSION_SCHEMA,
+        "source_task_id": SOURCE_TASK_ID,
+        "source_expected_status": "EXPIRED",
+        "source_expected_attempt": 0,
+        "source_expected_claimed_by": None,
+        "source_expected_lease_token_hash": None,
+        "source_expected_lease_expires_at": None,
+        "repository": REPOSITORY,
+        "target_branch": TARGET_BRANCH,
+        "generation": GENERATION,
+        "source_business_execution_digest": SOURCE_BUSINESS_EXECUTION_DIGEST,
+        "external_job_identity": EXTERNAL_JOB_IDENTITY,
+        "child_task_id": CHILD_TASK_ID,
+        "supersession_ordinal": SUPERSESSION_ORDINAL,
+        "canonical_projection_profile": CANONICAL_PROJECTION_PROFILE,
+        "canonical_projection_version": CANONICAL_PROJECTION_VERSION,
+        "supersession_reason": SUPERSESSION_REASON,
+        "owner_identity": OWNER_IDENTITY,
+        "policy_digest": policy.digest,
+        "one_time_use": True,
+        "signature_namespace": OWNER_NAMESPACE,
+    }
+    if any(decision.get(field) != expected for field, expected in exact.items()):
+        _fail("TASK_LINEAGE_SUPERSESSION_SCOPE_INVALID")
+    if decision.get("source_task_identity_sha256") != policy.task_identity_sha256:
+        _fail("TASK_LINEAGE_SUPERSESSION_SOURCE_IDENTITY_INVALID")
+    for field in ("source_task_identity_sha256", "source_metadata_sha256"):
+        if not isinstance(decision.get(field), str) or HEX64.fullmatch(decision[field]) is None:
+            _fail("TASK_LINEAGE_SUPERSESSION_DIGEST_INVALID")
+    if type(decision.get("source_expected_revision")) is not int or not 1 <= decision["source_expected_revision"] < 2**63:
+        _fail("TASK_LINEAGE_SUPERSESSION_REVISION_INVALID")
+    for field in ("decision_id", "nonce"):
+        if not isinstance(decision.get(field), str) or SAFE_TOKEN.fullmatch(decision[field]) is None:
+            _fail("TASK_LINEAGE_SUPERSESSION_GENERATED_ID_INVALID")
+    for field in ("issued_at", "not_before", "expires_at"):
+        if type(decision.get(field)) is not int:
+            _fail("TASK_LINEAGE_SUPERSESSION_TIME_INVALID")
+    if not decision["not_before"] <= now < decision["expires_at"]:
+        _fail("TASK_LINEAGE_SUPERSESSION_TIME_INVALID")
+    if decision["issued_at"] > now + 5 or now - decision["issued_at"] > DECISION_TTL_SECONDS:
+        _fail("TASK_LINEAGE_SUPERSESSION_TIME_INVALID")
+    if decision["expires_at"] - decision["issued_at"] != DECISION_TTL_SECONDS:
+        _fail("TASK_LINEAGE_SUPERSESSION_TIME_INVALID")
+    digest_value = dict(decision)
+    supplied_digest = digest_value.pop("canonical_payload_digest", None)
+    if supplied_digest != sha256_json(digest_value):
+        _fail("TASK_LINEAGE_SUPERSESSION_CANONICAL_DIGEST_INVALID")
+
+
+class TaskLineageSupersessionOwnerAuthority(OperationalOwnerAuthority):
+    """Owner signer with one bounded constructor and no caller-defined message."""
+
+    def __init__(
+        self,
+        *args: Any,
+        token_hex: Callable[[int], str] = secrets.token_hex,
+        **kwargs: Any,
+    ) -> None:
+        super().__init__(*args, **kwargs)
+        self._token_hex = token_hex
+
+    def issue_task_lineage_supersession(
+        self,
+        *,
+        source_expected_revision: int,
+        source_task_identity_sha256: str,
+        source_metadata_sha256: str,
+    ) -> SignedOperationalArtifact:
+        _assert_fixed_policy(self.policy)
+        if type(source_expected_revision) is not int or not 1 <= source_expected_revision < 2**63:
+            _fail("TASK_LINEAGE_SUPERSESSION_REVISION_INVALID")
+        if source_task_identity_sha256 != self.policy.task_identity_sha256:
+            _fail("TASK_LINEAGE_SUPERSESSION_SOURCE_IDENTITY_INVALID")
+        if not isinstance(source_metadata_sha256, str) or HEX64.fullmatch(source_metadata_sha256) is None:
+            _fail("TASK_LINEAGE_SUPERSESSION_METADATA_DIGEST_INVALID")
+
+        decision_id = "task-lineage-supersession-" + self._token_hex(16)
+        nonce = "task-lineage-supersession-nonce-" + self._token_hex(16)
+        if SAFE_TOKEN.fullmatch(decision_id) is None or SAFE_TOKEN.fullmatch(nonce) is None:
+            _fail("TASK_LINEAGE_SUPERSESSION_GENERATED_ID_INVALID")
+        now = int(self.clock())
+        payload = {
+            "schema": TASK_LINEAGE_SUPERSESSION_SCHEMA,
+            "decision_id": decision_id,
+            "nonce": nonce,
+            "source_task_id": SOURCE_TASK_ID,
+            "source_task_identity_sha256": source_task_identity_sha256,
+            "source_metadata_sha256": source_metadata_sha256,
+            "source_expected_status": "EXPIRED",
+            "source_expected_revision": source_expected_revision,
+            "source_expected_attempt": 0,
+            "source_expected_claimed_by": None,
+            "source_expected_lease_token_hash": None,
+            "source_expected_lease_expires_at": None,
+            "repository": REPOSITORY,
+            "target_branch": TARGET_BRANCH,
+            "generation": GENERATION,
+            "source_business_execution_digest": SOURCE_BUSINESS_EXECUTION_DIGEST,
+            "external_job_identity": EXTERNAL_JOB_IDENTITY,
+            "child_task_id": CHILD_TASK_ID,
+            "supersession_ordinal": SUPERSESSION_ORDINAL,
+            "canonical_projection_profile": CANONICAL_PROJECTION_PROFILE,
+            "canonical_projection_version": CANONICAL_PROJECTION_VERSION,
+            "supersession_reason": SUPERSESSION_REASON,
+            "owner_identity": OWNER_IDENTITY,
+            "policy_digest": self.policy.digest,
+            "one_time_use": True,
+            "issued_at": now,
+            "not_before": max(0, now - 5),
+            "expires_at": now + DECISION_TTL_SECONDS,
+        }
+        return self._sign(payload)

active-runtime/app/aios_task_lineage_supersession_owner_authority_server.py

@@ -0,0 +1,190 @@
+"""Staging-only server overlay for the fixed lineage Owner operation."""
+from __future__ import annotations
+
+import argparse
+import hashlib
+import json
+from pathlib import Path
+import sqlite3
+import time
+from typing import Any, Callable, Mapping
+
+from aios_single_host_authority import DEFAULT_REGISTRY_PATH
+from aios_single_host_operational_authority import (
+    OperationalMachineAuthority,
+    OperationalVerifier,
+)
+from aios_single_host_operational_authority_server import (
+    DEFAULT_LEDGER,
+    DEFAULT_MACHINE_KEY,
+    DEFAULT_OWNER_KEY,
+    DEFAULT_POLICY,
+    DurableIssuanceLedger,
+    OperationalAuthorityService as BaseOperationalAuthorityService,
+    _read_policy,
+    fail,
+)
+from aios_task_lineage_supersession_owner_authority import (
+    TASK_LINEAGE_SUPERSESSION_OPERATION,
+    TaskLineageSupersessionOwnerAuthority,
+)
+
+REQUEST_FIELDS = {
+    "source_expected_revision",
+    "source_task_identity_sha256",
+    "source_metadata_sha256",
+}
+
+
+class TaskLineageSupersessionIssuanceLedger(DurableIssuanceLedger):
+    """Operation-scoped one-time fence layered on the existing durable ledger."""
+
+    def issue_once(
+        self,
+        *,
+        role: str,
+        operation: str,
+        request: Mapping[str, Any],
+        issuer: Callable[[], dict[str, Any]],
+    ) -> dict[str, Any]:
+        request_sha = hashlib.sha256(
+            json.dumps(
+                request,
+                sort_keys=True,
+                separators=(",", ":"),
+                ensure_ascii=False,
+                allow_nan=False,
+            ).encode("utf-8")
+        ).hexdigest()
+        connection = sqlite3.connect(self.path, timeout=5, isolation_level=None)
+        try:
+            connection.execute("BEGIN IMMEDIATE")
+            existing = connection.execute(
+                "SELECT 1 FROM issuance WHERE role=? AND operation=? LIMIT 1",
+                (role, operation),
+            ).fetchone()
+            if existing is not None:
+                connection.rollback()
+                fail("TASK_LINEAGE_SUPERSESSION_ALREADY_ISSUED")
+            result = issuer()
+            artifact = result.get("artifact")
+            nonce = artifact.get("payload", {}).get("nonce") if isinstance(artifact, Mapping) else None
+            if not isinstance(nonce, str) or not nonce:
+                connection.rollback()
+                fail("TASK_LINEAGE_SUPERSESSION_ISSUER_RESULT_INVALID")
+            encoded = json.dumps(
+                result,
+                sort_keys=True,
+                separators=(",", ":"),
+                ensure_ascii=False,
+                allow_nan=False,
+            )
+            connection.execute(
+                "INSERT INTO issuance(role,operation,nonce,request_sha256,response_json,created_at) "
+                "VALUES(?,?,?,?,?,?)",
+                (role, operation, nonce, request_sha, encoded, int(time.time())),
+            )
+            connection.commit()
+            return result
+        except sqlite3.IntegrityError:
+            connection.rollback()
+            fail("ISSUANCE_LEDGER_RACE")
+        except Exception:
+            connection.rollback()
+            raise
+        finally:
+            connection.close()
+
+
+class OperationalAuthorityService(BaseOperationalAuthorityService):
+    """Preserve all existing operations and add one exact Owner-only operation."""
+
+    def __init__(self, *args: Any, token_hex=None, **kwargs: Any) -> None:
+        super().__init__(*args, **kwargs)
+        self.ledger = TaskLineageSupersessionIssuanceLedger(self.ledger.path)
+        self._token_hex = token_hex
+
+    def _components(self):
+        policy = _read_policy(
+            self.policy_path,
+            require_root_owner=self.require_root_owner,
+        )
+        verifier = OperationalVerifier(
+            self.registry_path,
+            require_root_owner=self.require_root_owner,
+        )
+        if self.role == "owner":
+            kwargs = {}
+            if self._token_hex is not None:
+                kwargs["token_hex"] = self._token_hex
+            signer = TaskLineageSupersessionOwnerAuthority(
+                self.owner_key_path,
+                policy,
+                require_root_owner=self.require_root_owner,
+                clock=self.clock,
+                **kwargs,
+            )
+        else:
+            signer = OperationalMachineAuthority(
+                self.machine_key_path,
+                policy,
+                require_root_owner=self.require_root_owner,
+                clock=self.clock,
+            )
+        return policy, verifier, signer
+
+    def handle(self, request: Mapping[str, Any], *, peer_uid: int) -> dict[str, Any]:
+        if peer_uid not in self.allowed_uids:
+            fail("PEER_UID_FORBIDDEN")
+        if not isinstance(request, Mapping) or set(request) != {"operation", "payload"}:
+            fail("REQUEST_INVALID")
+        if request.get("operation") != TASK_LINEAGE_SUPERSESSION_OPERATION:
+            return super().handle(request, peer_uid=peer_uid)
+        if self.role != "owner":
+            fail("MACHINE_OPERATION_FORBIDDEN")
+        payload = request.get("payload")
+        if not isinstance(payload, Mapping) or set(payload) != REQUEST_FIELDS:
+            fail("REQUEST_FIELDS_INVALID")
+        _policy, _verifier, signer = self._components()
+
+        def issue() -> dict[str, Any]:
+            artifact = signer.issue_task_lineage_supersession(
+                source_expected_revision=payload["source_expected_revision"],
+                source_task_identity_sha256=payload["source_task_identity_sha256"],
+                source_metadata_sha256=payload["source_metadata_sha256"],
+            )
+            return {"status": "PASS", "artifact": artifact.to_dict()}
+
+        return self.ledger.issue_once(
+            role=self.role,
+            operation=TASK_LINEAGE_SUPERSESSION_OPERATION,
+            request=payload,
+            issuer=issue,
+        )
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--role", choices=("owner", "machine"), required=True)
+    parser.add_argument("--policy", default=str(DEFAULT_POLICY))
+    parser.add_argument("--registry", default=str(DEFAULT_REGISTRY_PATH))
+    parser.add_argument("--owner-key", default=str(DEFAULT_OWNER_KEY))
+    parser.add_argument("--machine-key", default=str(DEFAULT_MACHINE_KEY))
+    parser.add_argument("--socket")
+    parser.add_argument("--ledger", default=str(DEFAULT_LEDGER))
+    arguments = parser.parse_args()
+    service = OperationalAuthorityService(
+        role=arguments.role,
+        policy_path=Path(arguments.policy),
+        registry_path=Path(arguments.registry),
+        owner_key_path=Path(arguments.owner_key),
+        machine_key_path=Path(arguments.machine_key),
+        socket_path=Path(arguments.socket) if arguments.socket else None,
+        ledger_path=Path(arguments.ledger),
+    )
+    service.serve_forever()
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

active-runtime/app/aios_trusted_candidate_builder.py

@@ -15,7 +15,7 @@ import struct
 import subprocess
 import time
 from datetime import datetime, timezone
-from dataclasses import dataclass
+from dataclasses import dataclass, replace
 from pathlib import Path
 from typing import Any, Callable, Mapping, Protocol
 
@@ -133,6 +133,7 @@ class TrustedCandidateBuilderConfig:
     recipes: Mapping[str, Mapping[str, str]]
     governed_recipes: Mapping[str, Mapping[str, str]]
     policy_sha256: str
+    source_admission_resolver: Callable[[str, str | None, str], Mapping[str, str]] | None = None
 
     @classmethod
     def from_policy(cls, policy: Mapping[str, Any]) -> "TrustedCandidateBuilderConfig":
@@ -227,14 +228,63 @@ class TrustedCandidateBuilderConfig:
         return recipe
 
     def resolve_recipe(self, version: str, candidate_id: str | None, source_commit: str) -> Mapping[str, str]:
-        recipe = self.fixed_recipe(version)
-        # Intent-only callers do not choose a candidate identity.  The
-        # policy-owned recipe supplies it; explicit worker requests are
-        # still checked against the same immutable recipe.
-        effective_candidate_id = str(candidate_id or recipe.get("candidate_id") or "")
-        if {"version": recipe.get("version"), "candidate_id": recipe.get("candidate_id"), "source_commit": recipe.get("source_commit")} != {"version": version, "candidate_id": effective_candidate_id, "source_commit": source_commit}:
+        recipe = self.recipes.get(version)
+        if recipe is not None:
+            resolved = self.fixed_recipe(version)
+            # Fixed/governed-derived policy recipes remain immutable.  A
+            # source admission can never override one of these identities.
+            effective_candidate_id = str(candidate_id or resolved.get("candidate_id") or "")
+            if {
+                "version": resolved.get("version"),
+                "candidate_id": resolved.get("candidate_id"),
+                "source_commit": resolved.get("source_commit"),
+            } != {
+                "version": version,
+                "candidate_id": effective_candidate_id,
+                "source_commit": source_commit,
+            }:
+                raise BuilderError("REQUEST_RELEASE_BINDING_INVALID")
+            return resolved
+
+        resolver = self.source_admission_resolver
+        if resolver is None:
+            raise BuilderError("RECIPE_UNKNOWN")
+        try:
+            admitted = dict(resolver(version, candidate_id, source_commit))
+        except Exception as exc:
+            raise BuilderError("SOURCE_ADMISSION_REQUIRED") from exc
+        required = {
+            "mode",
+            "task_id",
+            "candidate_id",
+            "base_oid",
+            "source_commit",
+            "version",
+            "purpose",
+        }
+        if (
+            set(admitted) != required
+            or admitted.get("mode") != "governed-source-admission"
+            or admitted.get("version") != version
+            or admitted.get("source_commit") != source_commit
+            or not isinstance(admitted.get("candidate_id"), str)
+            or not admitted.get("candidate_id")
+        ):
+            raise BuilderError("SOURCE_ADMISSION_INVALID")
+        effective_candidate_id = str(candidate_id or admitted["candidate_id"])
+        if effective_candidate_id != admitted["candidate_id"]:
             raise BuilderError("REQUEST_RELEASE_BINDING_INVALID")
-        return recipe
+        for name in ("base_oid", "source_commit"):
+            value = admitted.get(name)
+            if (
+                not isinstance(value, str)
+                or len(value) != 40
+                or any(char not in "0123456789abcdef" for char in value.lower())
+            ):
+                raise BuilderError("SOURCE_ADMISSION_INVALID")
+        if admitted.get("purpose") != "AIOS_TRUSTED_RELEASE_BUILDER":
+            raise BuilderError("SOURCE_ADMISSION_INVALID")
+        return admitted
 
 
 def _invalid_governed_recipes() -> Mapping[str, Mapping[str, str]]:
@@ -776,6 +826,30 @@ def _main() -> None:
     if not credentials:
         raise SystemExit("CREDENTIALS_DIRECTORY is required")
     keyring = BuilderKeyring.from_credentials_directory(Path(credentials))
+    source_admission_root = os.environ.get(
+        "AIOS_TRUSTED_BUILDER_SOURCE_ADMISSION_ROOT", ""
+    ).strip()
+    if source_admission_root:
+        from release_source_admission import ReleaseSourceAdmissionStore
+
+        try:
+            source_admission_hmac = (
+                Path(credentials) / "source_admission_hmac"
+            ).read_bytes().strip()
+        except OSError as exc:
+            raise BuilderError("SOURCE_ADMISSION_HMAC_UNAVAILABLE") from exc
+        source_store = ReleaseSourceAdmissionStore(
+            Path(source_admission_root),
+            repository=config.repository,
+            policy_sha256=config.policy_sha256,
+            hmac_key=source_admission_hmac,
+            expected_owner_uid=0,
+            writable=False,
+        )
+        config = replace(
+            config,
+            source_admission_resolver=source_store.resolve_recipe,
+        )
     signer = CredentialPathEd25519Signer(
         keyring.signing_private_key_path,
         key_id=os.environ["AIOS_TRUSTED_BUILDER_KEY_ID"],

active-runtime/app/reconciliation_controller.py

@@ -25,8 +25,17 @@ class ReconciliationController:
     def reconcile(self, actual: Mapping[str, Any]) -> ReconciliationReport:
         drift: list[str] = []
         for left, right, label in self.CHECKS:
-            if actual.get(left) != actual.get(right):
+            left_value = actual.get(left)
+            right_value = actual.get(right)
+            expected_type = bool if left == "declared_production_state" else str
+            complete = (
+                left in actual
+                and right in actual
+                and isinstance(left_value, expected_type)
+                and isinstance(right_value, expected_type)
+                and (expected_type is bool or bool(left_value.strip()) and bool(right_value.strip()))
+            )
+            if not complete or left_value != right_value:
                 drift.append(label)
         actions = () if not drift else ("open_reconciliation_task", "open_reconciliation_pr", "attach_evidence", "notify_owner")
         return ReconciliationReport(not drift, tuple(drift), actions)
-

active-runtime/app/release_source_admission.py

@@ -0,0 +1,561 @@
+#!/usr/bin/env python3
+"""Governed admission of an exact remote Git commit into the release source closure.
+
+The admitter is intentionally separate from the trusted candidate builder:
+it may use a narrowly-scoped Gitea read/fetch credential, while the builder
+remains PrivateNetwork=true and reads only the authoritative Git object store
+plus immutable admission records.
+
+An admission never moves ``main`` and never treats an arbitrary caller-supplied
+OID as trusted.  It binds:
+  remote branch ref -> exact full commit OID -> authoritative Git object/tree
+  -> current authoritative main ancestry -> immutable release recipe metadata.
+"""
+from __future__ import annotations
+
+import argparse
+import hashlib
+import hmac
+import json
+import os
+import re
+import tempfile
+from dataclasses import dataclass
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Any, Mapping, Protocol
+
+from authoritative_git import (
+    AuthoritativeGitError,
+    authoritative_head_oid,
+    authoritative_lineage,
+    run_authoritative_git,
+)
+from aios_gitea_machine_transport import GiteaMachineTransport, GiteaTransportError
+from release_version import validate_release_version
+
+
+SCHEMA = "aios.release-source-admission.v1"
+RECIPE_MODE = "governed-source-admission"
+_OID_RE = re.compile(r"^[0-9a-f]{40}$")
+_DIGEST_RE = re.compile(r"^[0-9a-f]{64}$")
+_IDENTIFIER_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._:@/-]{0,199}$")
+_BRANCH_RE = re.compile(r"^[A-Za-z0-9][A-Za-z0-9._/-]{0,239}$")
+_REF_PREFIX = "refs/heads/"
+
+
+class ReleaseSourceAdmissionError(RuntimeError):
+    """A stable fail-closed source-admission error code."""
+
+
+def _canonical(value: Mapping[str, Any]) -> bytes:
+    return json.dumps(
+        dict(value),
+        sort_keys=True,
+        separators=(",", ":"),
+        ensure_ascii=True,
+    ).encode("utf-8")
+
+
+def _oid(value: object, field: str) -> str:
+    text = str(value or "").strip().lower()
+    if not _OID_RE.fullmatch(text):
+        raise ReleaseSourceAdmissionError(f"{field.upper()}_INVALID")
+    return text
+
+
+def _digest(value: object, field: str) -> str:
+    text = str(value or "").strip().lower()
+    if not _DIGEST_RE.fullmatch(text):
+        raise ReleaseSourceAdmissionError(f"{field.upper()}_INVALID")
+    return text
+
+
+def _identifier(value: object, field: str) -> str:
+    text = str(value or "").strip()
+    if not _IDENTIFIER_RE.fullmatch(text) or ".." in text or "\x00" in text:
+        raise ReleaseSourceAdmissionError(f"{field.upper()}_INVALID")
+    return text
+
+
+def _source_ref(value: object) -> str:
+    text = str(value or "").strip()
+    if not text.startswith(_REF_PREFIX):
+        raise ReleaseSourceAdmissionError("SOURCE_REF_INVALID")
+    branch = text[len(_REF_PREFIX):]
+    if (
+        not _BRANCH_RE.fullmatch(branch)
+        or ".." in branch
+        or "//" in branch
+        or "@{" in branch
+        or branch.endswith(("/", ".", ".lock"))
+        or any(part in {"", ".", ".."} for part in branch.split("/"))
+    ):
+        raise ReleaseSourceAdmissionError("SOURCE_REF_INVALID")
+    return text
+
+
+def _version(value: object) -> str:
+    try:
+        return validate_release_version(value)
+    except (TypeError, ValueError) as exc:
+        raise ReleaseSourceAdmissionError("VERSION_INVALID") from exc
+
+
+def _version_slug(version: str) -> str:
+    value = re.sub(r"[^A-Za-z0-9]+", "-", version.lower()).strip("-")
+    if not value:
+        raise ReleaseSourceAdmissionError("VERSION_INVALID")
+    return value[:80]
+
+
+def _now() -> str:
+    return datetime.now(timezone.utc).replace(microsecond=0).isoformat().replace("+00:00", "Z")
+
+
+def _secure_stat(path: Path, *, expected_owner_uid: int | None, directory: bool) -> None:
+    try:
+        info = path.lstat()
+    except OSError as exc:
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_STORE_UNAVAILABLE") from exc
+    if path.is_symlink():
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_STORE_UNSAFE")
+    if directory and not path.is_dir():
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_STORE_UNSAFE")
+    if not directory and not path.is_file():
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_STORE_UNSAFE")
+    if expected_owner_uid is not None and info.st_uid != expected_owner_uid:
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_OWNER_MISMATCH")
+    # Group/other write would allow an untrusted process to forge release input.
+    if info.st_mode & 0o022:
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_PERMISSIONS_INVALID")
+
+
+def _validate_record(
+    value: Mapping[str, Any],
+    *,
+    repository: str,
+    policy_sha256: str,
+    hmac_key: bytes,
+) -> dict[str, Any]:
+    if not isinstance(value, Mapping):
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_RECORD_INVALID")
+    required = {
+        "schema",
+        "admission_id",
+        "repository",
+        "task_id",
+        "version",
+        "candidate_id",
+        "base_oid",
+        "source_ref",
+        "source_commit",
+        "remote_ref_oid",
+        "tree_oid",
+        "purpose",
+        "policy_sha256",
+        "admitted_at",
+        "mac",
+    }
+    if set(value) != required or value.get("schema") != SCHEMA:
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_RECORD_INVALID")
+    record = dict(value)
+    if _identifier(record["repository"], "repository") != repository:
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_REPOSITORY_MISMATCH")
+    _identifier(record["task_id"], "task_id")
+    record["version"] = _version(record["version"])
+    _identifier(record["candidate_id"], "candidate_id")
+    _identifier(record["purpose"], "purpose")
+    _identifier(record["admission_id"], "admission_id")
+    record["base_oid"] = _oid(record["base_oid"], "base_oid")
+    record["source_commit"] = _oid(record["source_commit"], "source_commit")
+    record["remote_ref_oid"] = _oid(record["remote_ref_oid"], "remote_ref_oid")
+    record["tree_oid"] = _oid(record["tree_oid"], "tree_oid")
+    record["source_ref"] = _source_ref(record["source_ref"])
+    record["policy_sha256"] = _digest(record["policy_sha256"], "policy_sha256")
+    if record["policy_sha256"] != policy_sha256:
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_POLICY_MISMATCH")
+    if record["remote_ref_oid"] != record["source_commit"]:
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_REMOTE_MISMATCH")
+    admitted_at = record.get("admitted_at")
+    if not isinstance(admitted_at, str) or not admitted_at.endswith("Z") or len(admitted_at) < 20:
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_TIME_INVALID")
+    supplied_mac = record.get("mac")
+    if (
+        not isinstance(supplied_mac, str)
+        or not re.fullmatch(r"[0-9a-f]{64}", supplied_mac)
+    ):
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_MAC_INVALID")
+    unsigned = {key: value for key, value in record.items() if key != "mac"}
+    expected_mac = hmac.new(hmac_key, _canonical(unsigned), hashlib.sha256).hexdigest()
+    if not hmac.compare_digest(supplied_mac, expected_mac):
+        raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_MAC_INVALID")
+    return record
+
+
+class ReleaseSourceBackend(Protocol):
+    def authoritative_main_oid(self) -> str: ...
+    def remote_ref_oid(self, source_ref: str) -> str: ...
+    def fetch_exact_ref(self, source_ref: str, source_commit: str) -> str: ...
+    def tree_oid(self, source_commit: str) -> str: ...
+    def require_lineage(self, base_oid: str, source_commit: str) -> None: ...
+
+
+class ReleaseSourceAdmissionStore:
+    """Durable immutable admission records keyed by exact source commit."""
+
+    def __init__(
+        self,
+        root: str | os.PathLike[str],
+        *,
+        repository: str,
+        policy_sha256: str,
+        hmac_key: bytes,
+        expected_owner_uid: int | None = None,
+        writable: bool = False,
+    ) -> None:
+        self.root = Path(root)
+        self.repository = _identifier(repository, "repository")
+        self.policy_sha256 = _digest(policy_sha256, "policy_sha256")
+        if not isinstance(hmac_key, (bytes, bytearray)) or len(hmac_key) < 32:
+            raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_HMAC_INVALID")
+        self.hmac_key = bytes(hmac_key)
+        self.expected_owner_uid = expected_owner_uid
+        self.writable = bool(writable)
+        if self.writable and not self.root.exists():
+            self.root.mkdir(parents=True, mode=0o750)
+        if self.root.exists():
+            _secure_stat(
+                self.root,
+                expected_owner_uid=self.expected_owner_uid,
+                directory=True,
+            )
+
+    def _path(self, source_commit: str) -> Path:
+        return self.root / f"{_oid(source_commit, 'source_commit')}.json"
+
+    def register(self, record: Mapping[str, Any]) -> dict[str, Any]:
+        if not self.writable:
+            raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_STORE_READ_ONLY")
+        supplied = dict(record)
+        if "mac" not in supplied:
+            supplied["mac"] = hmac.new(
+                self.hmac_key,
+                _canonical(supplied),
+                hashlib.sha256,
+            ).hexdigest()
+        checked = _validate_record(
+            supplied,
+            repository=self.repository,
+            policy_sha256=self.policy_sha256,
+            hmac_key=self.hmac_key,
+        )
+        path = self._path(checked["source_commit"])
+        encoded = _canonical(checked) + b"\n"
+        if path.exists():
+            _secure_stat(
+                path,
+                expected_owner_uid=self.expected_owner_uid,
+                directory=False,
+            )
+            try:
+                existing = path.read_bytes()
+            except OSError as exc:
+                raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_STORE_UNAVAILABLE") from exc
+            if existing == encoded:
+                return dict(checked)
+            try:
+                previous = _validate_record(
+                    json.loads(existing),
+                    repository=self.repository,
+                    policy_sha256=self.policy_sha256,
+                    hmac_key=self.hmac_key,
+                )
+            except (json.JSONDecodeError, UnicodeDecodeError) as exc:
+                raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_RECORD_INVALID") from exc
+            comparable_previous = {
+                key: value
+                for key, value in previous.items()
+                if key not in {"admitted_at", "mac"}
+            }
+            comparable_checked = {
+                key: value
+                for key, value in checked.items()
+                if key not in {"admitted_at", "mac"}
+            }
+            if comparable_previous == comparable_checked:
+                return dict(previous)
+            raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_CONFLICT")
+        self.root.mkdir(parents=True, exist_ok=True, mode=0o750)
+        _secure_stat(
+            self.root,
+            expected_owner_uid=self.expected_owner_uid,
+            directory=True,
+        )
+        fd, raw_name = tempfile.mkstemp(
+            prefix=f".{checked['source_commit']}.",
+            suffix=".tmp",
+            dir=self.root,
+        )
+        temp_path = Path(raw_name)
+        try:
+            os.fchmod(fd, 0o640)
+            with os.fdopen(fd, "wb", closefd=True) as handle:
+                handle.write(encoded)
+                handle.flush()
+                os.fsync(handle.fileno())
+            os.replace(temp_path, path)
+            os.chmod(path, 0o640)
+            directory_fd = os.open(self.root, os.O_RDONLY | getattr(os, "O_DIRECTORY", 0))
+            try:
+                os.fsync(directory_fd)
+            finally:
+                os.close(directory_fd)
+        except Exception:
+            try:
+                os.close(fd)
+            except OSError:
+                pass
+            temp_path.unlink(missing_ok=True)
+            raise
+        _secure_stat(
+            path,
+            expected_owner_uid=self.expected_owner_uid,
+            directory=False,
+        )
+        return dict(checked)
+
+    def lookup_source(self, source_commit: str) -> dict[str, Any] | None:
+        path = self._path(source_commit)
+        if not path.exists():
+            return None
+        _secure_stat(
+            path,
+            expected_owner_uid=self.expected_owner_uid,
+            directory=False,
+        )
+        try:
+            raw = path.read_bytes()
+            if len(raw) > 64 * 1024:
+                raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_RECORD_INVALID")
+            decoded = json.loads(raw)
+        except ReleaseSourceAdmissionError:
+            raise
+        except (OSError, UnicodeDecodeError, json.JSONDecodeError) as exc:
+            raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_RECORD_INVALID") from exc
+        return _validate_record(
+            decoded,
+            repository=self.repository,
+            policy_sha256=self.policy_sha256,
+            hmac_key=self.hmac_key,
+        )
+
+    def resolve_recipe(
+        self,
+        version: str,
+        candidate_id: str | None,
+        source_commit: str,
+    ) -> dict[str, str]:
+        record = self.lookup_source(source_commit)
+        if record is None:
+            raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_NOT_FOUND")
+        if record["version"] != version:
+            raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_VERSION_MISMATCH")
+        supplied_candidate = str(candidate_id or "")
+        if supplied_candidate and supplied_candidate != record["candidate_id"]:
+            raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_CANDIDATE_MISMATCH")
+        return {
+            "mode": RECIPE_MODE,
+            "task_id": record["task_id"],
+            "candidate_id": record["candidate_id"],
+            "base_oid": record["base_oid"],
+            "source_commit": record["source_commit"],
+            "version": record["version"],
+            "purpose": record["purpose"],
+        }
+
+
+@dataclass(slots=True)
+class GiteaReleaseSourceBackend:
+    transport: GiteaMachineTransport
+    git_dir: Path
+
+    def authoritative_main_oid(self) -> str:
+        return authoritative_head_oid(git_dir=self.git_dir)
+
+    def remote_ref_oid(self, source_ref: str) -> str:
+        ref = _source_ref(source_ref)
+        branch = ref[len(_REF_PREFIX):]
+        value = self.transport.read_branch(branch)
+        if value is None:
+            raise ReleaseSourceAdmissionError("SOURCE_REF_NOT_FOUND")
+        return _oid(value, "remote_ref_oid")
+
+    def fetch_exact_ref(self, source_ref: str, source_commit: str) -> str:
+        ref = _source_ref(source_ref)
+        branch = ref[len(_REF_PREFIX):]
+        try:
+            value = self.transport.fetch_branch_exact(
+                branch,
+                _oid(source_commit, "source_commit"),
+            )
+        except GiteaTransportError as exc:
+            raise ReleaseSourceAdmissionError("SOURCE_FETCH_FAILED") from exc
+        return _oid(value, "fetched_source_commit")
+
+    def tree_oid(self, source_commit: str) -> str:
+        source = _oid(source_commit, "source_commit")
+        try:
+            result = run_authoritative_git(
+                ["rev-parse", "--verify", f"{source}^{{tree}}"],
+                git_dir=self.git_dir,
+            )
+        except AuthoritativeGitError as exc:
+            raise ReleaseSourceAdmissionError("SOURCE_COMMIT_NOT_FOUND") from exc
+        return _oid(result.stdout.strip().lower(), "tree_oid")
+
+    def require_lineage(self, base_oid: str, source_commit: str) -> None:
+        try:
+            authoritative_lineage(
+                _oid(base_oid, "base_oid"),
+                _oid(source_commit, "source_commit"),
+                git_dir=self.git_dir,
+            )
+        except AuthoritativeGitError as exc:
+            raise ReleaseSourceAdmissionError("SOURCE_LINEAGE_MISMATCH") from exc
+
+
+class ReleaseSourceAdmitter:
+    def __init__(
+        self,
+        store: ReleaseSourceAdmissionStore,
+        backend: ReleaseSourceBackend,
+        *,
+        purpose: str = "AIOS_TRUSTED_RELEASE_BUILDER",
+    ) -> None:
+        if not store.writable:
+            raise ReleaseSourceAdmissionError("SOURCE_ADMISSION_STORE_READ_ONLY")
+        self.store = store
+        self.backend = backend
+        self.purpose = _identifier(purpose, "purpose")
+
+    def admit(
+        self,
+        *,
+        version: str,
+        task_id: str,
+        source_ref: str,
+        source_commit: str,
+    ) -> dict[str, Any]:
+        version_value = _version(version)
+        task_value = _identifier(task_id, "task_id")
+        ref_value = _source_ref(source_ref)
+        source_value = _oid(source_commit, "source_commit")
+
+        remote_before = self.backend.remote_ref_oid(ref_value)
+        if remote_before != source_value:
+            raise ReleaseSourceAdmissionError("SOURCE_REF_MOVED")
+        base_oid = _oid(self.backend.authoritative_main_oid(), "base_oid")
+        fetched = _oid(
+            self.backend.fetch_exact_ref(ref_value, source_value),
+            "fetched_source_commit",
+        )
+        if fetched != source_value:
+            raise ReleaseSourceAdmissionError("SOURCE_FETCH_MISMATCH")
+        remote_after = self.backend.remote_ref_oid(ref_value)
+        if remote_after != source_value:
+            raise ReleaseSourceAdmissionError("SOURCE_REF_MOVED")
+        self.backend.require_lineage(base_oid, source_value)
+        tree_oid = _oid(self.backend.tree_oid(source_value), "tree_oid")
+
+        candidate_id = f"rc-{_version_slug(version_value)}-{source_value[:12]}"
+        admission_id = "source-admission-" + hashlib.sha256(
+            f"{self.store.repository}\0{version_value}\0{source_value}\0{ref_value}".encode("utf-8")
+        ).hexdigest()[:24]
+        record = {
+            "schema": SCHEMA,
+            "admission_id": admission_id,
+            "repository": self.store.repository,
+            "task_id": task_value,
+            "version": version_value,
+            "candidate_id": candidate_id,
+            "base_oid": base_oid,
+            "source_ref": ref_value,
+            "source_commit": source_value,
+            "remote_ref_oid": remote_after,
+            "tree_oid": tree_oid,
+            "purpose": self.purpose,
+            "policy_sha256": self.store.policy_sha256,
+            "admitted_at": _now(),
+        }
+        return self.store.register(record)
+
+
+def _sha256_file(path: Path) -> str:
+    digest = hashlib.sha256()
+    with path.open("rb") as handle:
+        for chunk in iter(lambda: handle.read(1024 * 1024), b""):
+            digest.update(chunk)
+    return digest.hexdigest()
+
+
+def _main() -> None:
+    parser = argparse.ArgumentParser()
+    subparsers = parser.add_subparsers(dest="command", required=True)
+    admit = subparsers.add_parser("admit")
+    admit.add_argument("--version", required=True)
+    admit.add_argument("--task-id", required=True)
+    admit.add_argument("--source-ref", required=True)
+    admit.add_argument("--source-commit", required=True)
+    admit.add_argument("--policy", required=True, type=Path)
+    admit.add_argument("--store-root", required=True, type=Path)
+    arguments = parser.parse_args()
+
+    if arguments.command != "admit":
+        raise SystemExit("unsupported command")
+    repository = os.environ.get("AIOS_GITOPS_REPOSITORY_IDENTITY", "")
+    api_base = os.environ.get("AIOS_GITEA_API_BASE", "")
+    remote_url = os.environ.get("AIOS_GITEA_REMOTE_URL", "")
+    raw_git_dir = os.environ.get("AIOS_GITOPS_AUTHORITATIVE_GIT_DIR", "")
+    if not repository or not api_base or not remote_url or not raw_git_dir:
+        raise SystemExit("release source admission environment is incomplete")
+    git_dir = Path(raw_git_dir)
+    transport = GiteaMachineTransport(
+        api_base=api_base,
+        repository_id=repository,
+        remote_url=remote_url,
+        authority_git_dir=git_dir,
+        credential_name=os.environ.get(
+            "AIOS_GITEA_MACHINE_CREDENTIAL_NAME",
+            "gitea-machine-token",
+        ),
+    )
+    credentials = os.environ.get("CREDENTIALS_DIRECTORY", "")
+    if not credentials:
+        raise SystemExit("CREDENTIALS_DIRECTORY is required")
+    try:
+        admission_hmac = (Path(credentials) / "source_admission_hmac").read_bytes().strip()
+    except OSError as exc:
+        raise SystemExit("source_admission_hmac credential is required") from exc
+    store = ReleaseSourceAdmissionStore(
+        arguments.store_root,
+        repository=repository,
+        policy_sha256=_sha256_file(arguments.policy),
+        hmac_key=admission_hmac,
+        expected_owner_uid=os.geteuid() if hasattr(os, "geteuid") else None,
+        writable=True,
+    )
+    result = ReleaseSourceAdmitter(
+        store,
+        GiteaReleaseSourceBackend(transport=transport, git_dir=git_dir),
+    ).admit(
+        version=arguments.version,
+        task_id=arguments.task_id,
+        source_ref=arguments.source_ref,
+        source_commit=arguments.source_commit,
+    )
+    print(json.dumps(result, sort_keys=True, separators=(",", ":")))
+
+
+if __name__ == "__main__":
+    _main()

active-runtime/app/silent_release_hardening.py

@@ -3531,6 +3531,7 @@ class SilentReleaseActionService:
         trusted_policy: TrustedReleasePolicy | None = None,
         orchestrator: ReleaseOrchestrator | None = None,
         builder_readiness_probe: Callable[[], Mapping[str, Any]] | None = None,
+        source_admission_resolver: Callable[[str], Mapping[str, Any] | None] | None = None,
         allow_legacy_candidate_input: bool = False,
         expected_repository: str = "",
         policy_sha256: str = "",
@@ -3547,6 +3548,7 @@ class SilentReleaseActionService:
         self.trusted_policy = trusted_policy
         self.orchestrator = orchestrator
         self.builder_readiness_probe = builder_readiness_probe
+        self.source_admission_resolver = source_admission_resolver
         self.allow_legacy_candidate_input = bool(
             allow_legacy_candidate_input
         )
@@ -3638,6 +3640,40 @@ class SilentReleaseActionService:
         version = str(payload.get("version") or "")
         if version:
             _validate_identifier("version", version)
+
+        source_admission: dict[str, Any] | None = None
+        resolver = self.source_admission_resolver
+        if resolver is not None:
+            try:
+                raw_admission = resolver(source_commit)
+            except Exception as exc:
+                raise CapabilityAuthorizationError(
+                    "release source admission is invalid"
+                ) from exc
+            if raw_admission is not None:
+                source_admission = dict(raw_admission)
+                admitted_source = str(
+                    source_admission.get("source_commit") or ""
+                )
+                admitted_version = str(source_admission.get("version") or "")
+                admission_id = str(
+                    source_admission.get("admission_id") or ""
+                )
+                if (
+                    admitted_source != source_commit
+                    or not admitted_version
+                    or not admission_id
+                ):
+                    raise CapabilityAuthorizationError(
+                        "release source admission is invalid"
+                    )
+                _validate_identifier("version", admitted_version)
+                _validate_identifier("admission_id", admission_id)
+                if version and version != admitted_version:
+                    raise CapabilityAuthorizationError(
+                        "release source admission version mismatch"
+                    )
+                version = admitted_version
         intent_id = "intent-" + hashlib.sha256(
             f"{event_id}\0{source_commit}".encode("utf-8")
         ).hexdigest()[:24]
@@ -3657,12 +3693,16 @@ class SilentReleaseActionService:
         }
         if version:
             record["version"] = version
+        if source_admission is not None:
+            record["source_admission_id"] = source_admission["admission_id"]
         if was_existing:
             existing = json.loads(path.read_text(encoding="utf-8"))
             if (
                 existing.get("event_id") != event_id
                 or existing.get("source_commit") != source_commit
                 or str(existing.get("version") or "") != version
+                or str(existing.get("source_admission_id") or "")
+                != str(record.get("source_admission_id") or "")
             ):
                 raise SagaConflict(
                     "release intent id is bound to different evidence"
@@ -3742,14 +3782,23 @@ class SilentReleaseActionService:
             )
             _durable_json(path, record)
             return self._intent_response(record, idempotent=False)
-        except CapabilityAuthorizationError:
-            record.update(
-                {
-                    "failure_code": "TRUSTED_BUILDER_REJECTED",
-                    "retryable": False,
-                    "status": "BUILDER_TERMINAL_FAILURE",
-                }
-            )
+        except CapabilityAuthorizationError as exc:
+            if str(exc) == "release source admission required":
+                record.update(
+                    {
+                        "failure_code": "SOURCE_ADMISSION_REQUIRED",
+                        "retryable": False,
+                        "status": "SOURCE_ADMISSION_REQUIRED",
+                    }
+                )
+            else:
+                record.update(
+                    {
+                        "failure_code": "TRUSTED_BUILDER_REJECTED",
+                        "retryable": False,
+                        "status": "BUILDER_TERMINAL_FAILURE",
+                    }
+                )
             _durable_json(path, record)
             return self._intent_response(record, idempotent=False)
         except (ConnectionError, OSError, TimeoutError):

active-runtime/app/task_plane/store.py

@@ -940,23 +940,29 @@ class TaskPlaneStore:
     def heartbeat_claim(self, task_id: str, claim_id: str, lease_seconds: int) -> WorkerClaim:
         now = _now()
         lease_until = now + max(1, lease_seconds)
-        row = self.conn.execute(
-            "SELECT * FROM claims WHERE claim_id=? AND task_id=?",
-            (claim_id, task_id),
-        ).fetchone()
-        if row is None:
-            raise NotFoundError("claim")
-        claim = self._row_to_claim(row)
-        if claim.status != "ACTIVE":
-            raise ConflictError("claim not active")
-        if claim.lease_until < now:
-            raise LockedError("lease expired")
-
         with self._transaction():
-            self.conn.execute(
-                "UPDATE claims SET lease_until=? WHERE claim_id=?",
-                (lease_until, claim_id),
+            row = self.conn.execute(
+                "SELECT * FROM claims WHERE claim_id=? AND task_id=?",
+                (claim_id, task_id),
+            ).fetchone()
+            if row is None:
+                raise NotFoundError("claim")
+            claim = self._row_to_claim(row)
+            if claim.status != "ACTIVE":
+                raise ConflictError("claim not active")
+            if claim.lease_until <= now:
+                raise LockedError("lease expired")
+            if self.get_task(task_id).status in {"CANCELLED", "COMPLETED", "FAILED_FINAL"}:
+                raise ConflictError("task is terminal")
+            updated = self.conn.execute(
+                """
+                UPDATE claims SET lease_until=?
+                WHERE claim_id=? AND task_id=? AND status='ACTIVE' AND lease_until>?
+                """,
+                (lease_until, claim_id, task_id, now),
             )
+            if updated.rowcount != 1:
+                raise LockedError("claim changed during heartbeat")
             self.append_event(task_id, "TASK_PROGRESS", {"claim_id": claim_id, "stage": "heartbeat"}, subject=f"task/{task_id}")
             return self.get_claim(claim_id)
 
@@ -1064,7 +1070,14 @@ class TaskPlaneStore:
                 ),
             )
             self._fault("recover.after_probe_before_state")
-            if probe.outcome == ProbeOutcome.APPLIED_VERIFIED:
+            current_task = self.get_task(task_id)
+            if current_task.status in {"CANCELLED", "COMPLETED", "FAILED_FINAL"}:
+                # Recovery records what happened; it cannot undo a terminal Owner
+                # decision or reopen a finished task. This check shares the state
+                # transaction with the claim close and the appended probe event.
+                task_status = current_task.status
+                claim_status = "CANCELLED" if current_task.status == "CANCELLED" else "CLOSED_BY_RECOVERY"
+            elif probe.outcome == ProbeOutcome.APPLIED_VERIFIED:
                 task_status = "COMPLETED"
                 claim_status = "COMPLETED"
             elif probe.outcome == ProbeOutcome.CONFLICT:

active-runtime/migrations/005_task_lineage_supersession.sql

@@ -0,0 +1,92 @@
+PRAGMA foreign_keys=ON;
+
+CREATE TABLE IF NOT EXISTS task_lineage_supersessions (
+  source_task_id TEXT NOT NULL,
+  supersession_ordinal INTEGER NOT NULL CHECK (supersession_ordinal = 1),
+  child_task_id TEXT NOT NULL UNIQUE,
+  source_task_identity_sha256 TEXT NOT NULL,
+  source_metadata_sha256 TEXT NOT NULL,
+  owner_decision_sha256 TEXT NOT NULL UNIQUE,
+  decision_id TEXT NOT NULL UNIQUE,
+  created_at TEXT NOT NULL,
+  PRIMARY KEY (source_task_id, supersession_ordinal)
+);
+
+CREATE TABLE IF NOT EXISTS task_lineage_supersession_receipts (
+  decision_id TEXT PRIMARY KEY,
+  nonce TEXT NOT NULL UNIQUE,
+  source_task_id TEXT NOT NULL,
+  supersession_ordinal INTEGER NOT NULL,
+  child_task_id TEXT NOT NULL UNIQUE,
+  owner_decision_sha256 TEXT NOT NULL UNIQUE,
+  decision_json TEXT NOT NULL,
+  receipt_json TEXT NOT NULL,
+  consumed_at TEXT NOT NULL,
+  FOREIGN KEY (source_task_id, supersession_ordinal)
+    REFERENCES task_lineage_supersessions(source_task_id, supersession_ordinal)
+);
+
+CREATE TABLE IF NOT EXISTS task_claim_guard_bindings_v2 (
+  binding_id TEXT PRIMARY KEY,
+  task_id TEXT NOT NULL UNIQUE,
+  source_task_id TEXT NOT NULL,
+  supersession_ordinal INTEGER NOT NULL,
+  expected_revision INTEGER NOT NULL CHECK (expected_revision >= 1),
+  metadata_sha256 TEXT NOT NULL,
+  required_capabilities_sha256 TEXT NOT NULL,
+  worker_id TEXT NOT NULL,
+  execution_digest TEXT NOT NULL,
+  repository TEXT NOT NULL,
+  target_branch TEXT NOT NULL,
+  generation INTEGER NOT NULL,
+  policy_json TEXT NOT NULL,
+  policy_sha256 TEXT NOT NULL,
+  binding_json TEXT NOT NULL,
+  binding_sha256 TEXT NOT NULL UNIQUE,
+  created_at TEXT NOT NULL,
+  FOREIGN KEY (source_task_id, supersession_ordinal)
+    REFERENCES task_lineage_supersessions(source_task_id, supersession_ordinal)
+);
+
+CREATE TABLE IF NOT EXISTS task_claim_guard_binding_receipts_v2 (
+  receipt_id TEXT PRIMARY KEY,
+  binding_id TEXT NOT NULL UNIQUE,
+  task_id TEXT NOT NULL UNIQUE,
+  receipt_json TEXT NOT NULL,
+  receipt_sha256 TEXT NOT NULL UNIQUE,
+  created_at TEXT NOT NULL,
+  FOREIGN KEY (binding_id) REFERENCES task_claim_guard_bindings_v2(binding_id)
+);
+
+CREATE TRIGGER IF NOT EXISTS task_lineage_supersessions_no_update
+BEFORE UPDATE ON task_lineage_supersessions BEGIN
+  SELECT RAISE(ABORT, 'TASK_LINEAGE_SUPERSESSION_APPEND_ONLY');
+END;
+CREATE TRIGGER IF NOT EXISTS task_lineage_supersessions_no_delete
+BEFORE DELETE ON task_lineage_supersessions BEGIN
+  SELECT RAISE(ABORT, 'TASK_LINEAGE_SUPERSESSION_APPEND_ONLY');
+END;
+CREATE TRIGGER IF NOT EXISTS task_lineage_supersession_receipts_no_update
+BEFORE UPDATE ON task_lineage_supersession_receipts BEGIN
+  SELECT RAISE(ABORT, 'TASK_LINEAGE_SUPERSESSION_RECEIPT_APPEND_ONLY');
+END;
+CREATE TRIGGER IF NOT EXISTS task_lineage_supersession_receipts_no_delete
+BEFORE DELETE ON task_lineage_supersession_receipts BEGIN
+  SELECT RAISE(ABORT, 'TASK_LINEAGE_SUPERSESSION_RECEIPT_APPEND_ONLY');
+END;
+CREATE TRIGGER IF NOT EXISTS task_claim_guard_bindings_v2_no_update
+BEFORE UPDATE ON task_claim_guard_bindings_v2 BEGIN
+  SELECT RAISE(ABORT, 'TASK_CLAIM_GUARD_BINDING_APPEND_ONLY');
+END;
+CREATE TRIGGER IF NOT EXISTS task_claim_guard_bindings_v2_no_delete
+BEFORE DELETE ON task_claim_guard_bindings_v2 BEGIN
+  SELECT RAISE(ABORT, 'TASK_CLAIM_GUARD_BINDING_APPEND_ONLY');
+END;
+CREATE TRIGGER IF NOT EXISTS task_claim_guard_binding_receipts_v2_no_update
+BEFORE UPDATE ON task_claim_guard_binding_receipts_v2 BEGIN
+  SELECT RAISE(ABORT, 'TASK_CLAIM_GUARD_BINDING_RECEIPT_APPEND_ONLY');
+END;
+CREATE TRIGGER IF NOT EXISTS task_claim_guard_binding_receipts_v2_no_delete
+BEFORE DELETE ON task_claim_guard_binding_receipts_v2 BEGIN
+  SELECT RAISE(ABORT, 'TASK_CLAIM_GUARD_BINDING_RECEIPT_APPEND_ONLY');
+END;

active-runtime/migrations/006_task_lineage_supersession_initial_projection.sql

@@ -0,0 +1,41 @@
+PRAGMA foreign_keys=ON;
+
+CREATE TABLE IF NOT EXISTS task_lineage_supersession_initial_projections (
+  projection_id TEXT PRIMARY KEY,
+  task_id TEXT NOT NULL UNIQUE,
+  source_task_id TEXT NOT NULL,
+  supersession_ordinal INTEGER NOT NULL CHECK (supersession_ordinal = 1),
+  intent_sha256 TEXT NOT NULL UNIQUE,
+  intent_json TEXT NOT NULL,
+  owner_decision_sha256 TEXT NOT NULL UNIQUE,
+  source_task_identity_sha256 TEXT NOT NULL,
+  source_metadata_sha256 TEXT NOT NULL,
+  source_business_execution_digest TEXT NOT NULL,
+  canonical_child_execution_digest TEXT NOT NULL UNIQUE,
+  external_job_id TEXT NOT NULL,
+  repository TEXT NOT NULL,
+  target_branch TEXT NOT NULL,
+  generation INTEGER NOT NULL,
+  adapter TEXT NOT NULL,
+  required_capability TEXT NOT NULL,
+  expected_revision INTEGER NOT NULL CHECK (expected_revision = 1),
+  applied_revision INTEGER NOT NULL CHECK (applied_revision = 2),
+  metadata_sha256 TEXT NOT NULL,
+  required_capabilities_sha256 TEXT NOT NULL,
+  projection_event_sha256 TEXT NOT NULL,
+  receipt_json TEXT NOT NULL,
+  receipt_sha256 TEXT NOT NULL UNIQUE,
+  created_at TEXT NOT NULL,
+  FOREIGN KEY (source_task_id, supersession_ordinal)
+    REFERENCES task_lineage_supersessions(source_task_id, supersession_ordinal)
+);
+
+CREATE TRIGGER IF NOT EXISTS task_lineage_supersession_initial_projections_no_update
+BEFORE UPDATE ON task_lineage_supersession_initial_projections BEGIN
+  SELECT RAISE(ABORT, 'TASK_LINEAGE_SUPERSESSION_INITIAL_PROJECTION_APPEND_ONLY');
+END;
+
+CREATE TRIGGER IF NOT EXISTS task_lineage_supersession_initial_projections_no_delete
+BEFORE DELETE ON task_lineage_supersession_initial_projections BEGIN
+  SELECT RAISE(ABORT, 'TASK_LINEAGE_SUPERSESSION_INITIAL_PROJECTION_APPEND_ONLY');
+END;

deploy/baseline-v1.1/ACTIVATION_GATES.json

@@ -0,0 +1,17 @@
+{
+  "schema": "aios.activation-checklist.v1",
+  "profile": "isolated-validation",
+  "production_activation_supported": false,
+  "status": "NOT_RUN",
+  "checks": [
+    {"id": "identity", "required": "Replace @RELEASE_ROOT@; record source, artifact and configuration digests separately; verify package bytes.", "status": "NOT_RUN"},
+    {"id": "authority", "required": "Bind an explicitly isolated TaskPlaneStore; record existing online Task/Job/Release write authorities; do not route online admission into this profile.", "status": "NOT_RUN"},
+    {"id": "delegation", "required": "Use installed trusted Owner public keys and an explicitly authorized signed Grant. Never generate a production trust root to satisfy a missing credential.", "status": "NOT_RUN"},
+    {"id": "credentials", "required": "Project encrypted credentials directly into each consuming unit; preserve encrypted credential names; check permissions and independent restart/rotation.", "status": "NOT_RUN"},
+    {"id": "privileges", "required": "Create separate service and worker users; grant only read-only status access to the registered systemd service; no SSH, root shell or global write.", "status": "NOT_RUN"},
+    {"id": "configuration", "required": "Use loopback server URL, trusted fixed operation/component bindings and unique state directories. Client request bodies may not select tenant or credential paths.", "status": "NOT_RUN"},
+    {"id": "storage", "required": "Check directory owner, free space, SQLite WAL commits, durable receipts, recovery permissions and restore procedure on the actual storage device.", "status": "NOT_RUN"},
+    {"id": "nonrelease_loop", "required": "Record a real registered host service diagnostic through Action, Task claim, operation, receipt and result; unhealthy diagnostics remain observable failures of health.", "status": "NOT_RUN"},
+    {"id": "online_cutover", "required": "Separate later change: bind verified official Task authority adapter, release acceptance verifier, credential identities, approved installation and single-writer evidence before enabling online admission.", "status": "NOT_SUPPORTED_BY_THIS_PROFILE"}
+  ]
+}

deploy/baseline-v1.1/CREDENTIALS.md

@@ -0,0 +1,20 @@
+# Validation 实例的凭证边界
+
+本目录的 `.service.example` 是候选验证实例模板。它们不自动安装，不替换现有 Task 权威，也不支持 production profile。先按 `docs/implementation-baseline-1.1/INSTALLATION.md` 完成离线验证，并由安装者将 `@RELEASE_ROOT@` 替换为确定的、只读的发行目录，并将 `@PYTHON_EXECUTABLE@` 绑定到已验收的独立虚拟环境 Python 绝对路径。
+
+服务端账户为 `aios-baseline`；Worker 账户为 `aios-baseline-worker`。Worker 不获得机器签名私钥、Owner 私钥、服务端 token 清单或服务端数据库读取权。Worker 的 transport token 仅映射到已注册 Worker 身份；它不能自行声明租户、用户或权限。
+
+| 消费者 | 凭证名 | 用途 |
+| --- | --- | --- |
+| validation API | `aios-baseline-machine-key` | 已安装的短期执行证明和 operation receipt 签名身份 |
+| validation API | `aios-baseline-user-token` | 验证配置中一位用户的 transport token；实际多用户要逐个绑定可信身份 |
+| validation API | `aios-baseline-worker-token` | 验证 Worker 的 transport token |
+| validation Worker | `aios-baseline-worker-token` | 仅用于连接本机 API |
+
+每个 unit 使用自己的 `LoadCredentialEncrypted=` 从稳定的 `/etc/credstore.encrypted/` 来源投影。两个服务可以获得同一个受治理 token 的独立投影，但任何服务都不读取另一服务的 `/run/credentials/<unit>/`。加密凭证名称与 `LoadCredentialEncrypted` 左侧名称必须一致，避免更名导致解密身份校验失败。
+
+JSON 中仅允许以 `${CREDENTIALS_DIRECTORY}/<name>` 引用自己的投影目录；不要写入 token、签名私钥或跨服务路径。Owner 公钥和 Runtime Contract 是受治理配置；Owner 私钥留在既有签发边界，不交给 API 或 Worker。凭证缺失时服务启动或操作准入必须失败，不能临时新建信任根或借用其他服务的运行目录。
+
+本包不提供生成生产信任根的脚本。测试在临时目录生成测试专用密钥；它们不能用于真实部署。实际安装前还要确认当前主机 systemd 支持这些加固项和 encrypted credential，并对已渲染 unit 运行 `systemd-analyze verify`。本地模板静态检查不能代替实际服务重启、token 轮换及读取权限验收。
+
+`service-status` 使用固定 `/usr/bin/systemctl show` 参数和可信 unit 映射，只读取注册组件状态。若目标主机限制状态读取，应对该命名 operation 配置最小读取权限；不要改成以 root 运行 API，也不要开放任意命令或 SSH。

deploy/baseline-v1.1/aios-baseline-validation.service.example

@@ -0,0 +1,54 @@
+[Unit]
+Description=AIOS Baseline 1.1 isolated validation API (no production authority cutover)
+After=local-fs.target
+ConditionPathExists=@PYTHON_EXECUTABLE@
+ConditionPathExists=/etc/aios-baseline/server.json
+ConditionPathExists=@RELEASE_ROOT@/active-runtime/app/aios_baseline/cli.py
+
+[Service]
+Type=simple
+User=aios-baseline
+Group=aios-baseline
+WorkingDirectory=@RELEASE_ROOT@
+Environment=PYTHONPATH=@RELEASE_ROOT@/active-runtime/app
+Environment=PYTHONDONTWRITEBYTECODE=1
+Environment=AIOS_GITOPS_WRITES_ENABLED=false
+Environment=PATH=/usr/bin:/bin
+LoadCredentialEncrypted=aios-baseline-machine-key:/etc/credstore.encrypted/aios-baseline-machine-key
+LoadCredentialEncrypted=aios-baseline-user-token:/etc/credstore.encrypted/aios-baseline-user-token
+LoadCredentialEncrypted=aios-baseline-worker-token:/etc/credstore.encrypted/aios-baseline-worker-token
+ExecStart=@PYTHON_EXECUTABLE@ -B -m aios_baseline.cli server --config /etc/aios-baseline/server.json
+Restart=on-failure
+RestartSec=5s
+TimeoutStopSec=30s
+KillMode=control-group
+UMask=0077
+StateDirectory=aios-baseline
+StateDirectoryMode=0700
+ReadWritePaths=/var/lib/aios-baseline
+NoNewPrivileges=yes
+CapabilityBoundingSet=
+AmbientCapabilities=
+ProtectSystem=strict
+ProtectHome=yes
+PrivateTmp=yes
+PrivateDevices=yes
+ProtectKernelTunables=yes
+ProtectKernelModules=yes
+ProtectKernelLogs=yes
+ProtectControlGroups=yes
+ProtectClock=yes
+ProtectProc=invisible
+ProcSubset=pid
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
+IPAddressDeny=any
+IPAddressAllow=localhost
+RestrictSUIDSGID=yes
+LockPersonality=yes
+SystemCallArchitectures=native
+RestrictRealtime=yes
+TasksMax=64
+MemoryMax=512M
+
+[Install]
+WantedBy=multi-user.target

deploy/baseline-v1.1/aios-baseline-worker-validation.service.example

@@ -0,0 +1,54 @@
+[Unit]
+Description=AIOS Baseline 1.1 isolated validation worker (registered transport identity)
+After=aios-baseline-validation.service
+Requires=aios-baseline-validation.service
+ConditionPathExists=@PYTHON_EXECUTABLE@
+ConditionPathExists=/etc/aios-baseline/worker.json
+ConditionPathExists=@RELEASE_ROOT@/active-runtime/app/aios_baseline/cli.py
+
+[Service]
+Type=simple
+User=aios-baseline-worker
+Group=aios-baseline-worker
+WorkingDirectory=@RELEASE_ROOT@
+Environment=PYTHONPATH=@RELEASE_ROOT@/active-runtime/app
+Environment=PYTHONDONTWRITEBYTECODE=1
+Environment=AIOS_GITOPS_WRITES_ENABLED=false
+Environment=PATH=/usr/bin:/bin
+LoadCredentialEncrypted=aios-baseline-worker-token:/etc/credstore.encrypted/aios-baseline-worker-token
+ExecStart=@PYTHON_EXECUTABLE@ -B -m aios_baseline.cli worker --config /etc/aios-baseline/worker.json
+Restart=on-failure
+RestartSec=5s
+TimeoutStopSec=15s
+KillMode=control-group
+UMask=0077
+StateDirectory=aios-baseline-worker
+StateDirectoryMode=0700
+ReadWritePaths=/var/lib/aios-baseline-worker
+InaccessiblePaths=-/var/lib/aios-baseline -/etc/aios-baseline/server.json
+NoNewPrivileges=yes
+CapabilityBoundingSet=
+AmbientCapabilities=
+ProtectSystem=strict
+ProtectHome=yes
+PrivateTmp=yes
+PrivateDevices=yes
+ProtectKernelTunables=yes
+ProtectKernelModules=yes
+ProtectKernelLogs=yes
+ProtectControlGroups=yes
+ProtectClock=yes
+ProtectProc=invisible
+ProcSubset=pid
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
+IPAddressDeny=any
+IPAddressAllow=localhost
+RestrictSUIDSGID=yes
+LockPersonality=yes
+SystemCallArchitectures=native
+RestrictRealtime=yes
+TasksMax=32
+MemoryMax=256M
+
+[Install]
+WantedBy=multi-user.target

deploy/baseline-v1.1/server.json.example

@@ -0,0 +1,115 @@
+{
+  "contracts": [
+    {
+      "bindings": {},
+      "component_id": "sample",
+      "contract_revision": 1,
+      "contract_schema": "aios.runtime-contract.v1",
+      "credential_refs": {},
+      "entrypoints": {
+        "status": {
+          "component_id": "sample",
+          "environment": "staging",
+          "resolver_ref": "service://sample/status"
+        }
+      },
+      "environment": "staging",
+      "lifecycle": "active",
+      "operations": [
+        "service-status"
+      ],
+      "resource_refs": {},
+      "tenant_scope": "validation"
+    }
+  ],
+  "host_bindings": {
+    "validation:staging:sample": "REPLACE_WITH_EXISTING_SERVICE.service"
+  },
+  "identities": [
+    {
+      "role": "owner",
+      "subject_id": "owner",
+      "tenant_id": "validation",
+      "token_file": "${CREDENTIALS_DIRECTORY}/aios-baseline-user-token"
+    },
+    {
+      "role": "worker",
+      "subject_id": "machine-worker",
+      "tenant_id": "validation",
+      "token_file": "${CREDENTIALS_DIRECTORY}/aios-baseline-worker-token",
+      "worker_id": "diagnostic-worker"
+    }
+  ],
+  "listen": {
+    "host": "127.0.0.1",
+    "port": 8769
+  },
+  "machine_key_file": "${CREDENTIALS_DIRECTORY}/aios-baseline-machine-key",
+  "machine_key_id": "validation-machine",
+  "operations": [
+    {
+      "effect_class": "READ_ONLY",
+      "handler_ref": "host.service_status",
+      "input_schema": "aios.operation.service-status.input.v1",
+      "operation_id": "service-status",
+      "owner_boundary": {
+        "mode": "WITHIN_GRANT"
+      },
+      "readback": {
+        "mode": "NONE",
+        "required": false
+      },
+      "reconcile": {
+        "mode": "NONE"
+      },
+      "required_permissions": [
+        "service-status"
+      ],
+      "retry": {
+        "max_attempts": 2,
+        "mode": "SAFE"
+      },
+      "rollback": {
+        "mode": "NONE"
+      },
+      "timeout_seconds": 10,
+      "version": 1
+    }
+  ],
+  "owner_key_scopes": {
+    "validation-owner": {
+      "subject_ids": [
+        "owner"
+      ],
+      "tenant_ids": [
+        "validation"
+      ]
+    }
+  },
+  "owner_public_key_files": {
+    "validation-owner": "/etc/aios-baseline/owner-public.pem"
+  },
+  "profile": "isolated-validation",
+  "schema": "aios.baseline-server-config.v1",
+  "state_dir": "/var/lib/aios-baseline",
+  "workers": [
+    {
+      "capabilities": [
+        "service-status"
+      ],
+      "fallback_executor": false,
+      "heartbeat_seconds": 15,
+      "identity": "machine-worker",
+      "max_concurrency": 1,
+      "priority": 10,
+      "subject_scope": [
+        "owner"
+      ],
+      "tenant_scope": [
+        "validation"
+      ],
+      "worker_id": "diagnostic-worker"
+    }
+  ],
+  "receipt_public_key_files": {}
+}

deploy/baseline-v1.1/worker.json.example

@@ -0,0 +1,6 @@
+{
+  "base_url": "http://127.0.0.1:8769",
+  "poll_seconds": 2,
+  "schema": "aios.baseline-worker-config.v1",
+  "token_file": "${CREDENTIALS_DIRECTORY}/aios-baseline-worker-token"
+}

deploy/systemd/aios-chatgpt-bridge-v2-staging.service

@@ -11,9 +11,10 @@ WorkingDirectory=@RUNTIME_ROOT@
 Environment=AIOS_BRIDGE_SCHEMA_VERSION=aios.chatgpt-gitops-bridge.v2
 Environment=AIOS_GITOPS_WRITES_ENABLED=false
 Environment=AIOS_GITOPS_DURABLE_JOB_EXECUTION_ENABLED=true
+Environment=AIOS_P0_TASK_PRINCIPAL_WRITES_ENABLED=true
 Environment=AIOS_GITOPS_WRITES_ENABLED=false
 Environment=AIOS_GITEA_API_BASE=https://g.cnnetmkt.top/git/api/v1
-Environment=AIOS_GITEA_TOKEN_FILE=/run/credentials/aios-chatgpt-bridge-v2-staging.service/gitea_token
+Environment=AIOS_GITEA_TOKEN_FILE=%d/gitea-governance-executor-token
 Environment=AIOS_GITEA_REMOTE=gitea-http
 Environment=AIOS_GITOPS_BASELINE_AUTHORITY=/var/lib/aios-gitops/model-api-staging/baseline/current.json
 Environment=AIOS_CONTROL_PLANE_TARGET_VERSION=V2R2C1
@@ -21,7 +22,7 @@ Environment=AIOS_CONTROL_PLANE_TARGET_OID=@SOURCE_OID@
 Environment=AIOS_CONTROL_PLANE_ARTIFACT_SHA256=@ARTIFACT_SHA256@
 Environment=PYTHONPATH=@RUNTIME_ROOT@:@RUNTIME_ROOT@/app:@RUNTIME_ROOT@/runtime-agent-os
 Environment=AIOS_DEPLOYMENT_STATE=STAGING
-LoadCredential=gitea_token:/run/credentials/aios-governance-executor.service/gitea-governance-executor-token
+LoadCredentialEncrypted=gitea-governance-executor-token:/etc/credstore.encrypted/gitea-governance-executor-token
 ExecStartPre=/usr/bin/install -d -o aiman -g gitops -m 0750 /var/lib/aios-gitops/bridge-v2-staging
 ExecStartPre=/usr/bin/setfacl -m u:aiman:--x /usr/local/libexec
 ExecStart=/usr/bin/python3 -B @RUNTIME_ROOT@/app/aios_chatgpt_bridge_v2_server.py

deploy/systemd/aios-gitops-model-api-trusted-builder.conf.example

@@ -7,8 +7,10 @@ Environment=AIOS_TRUSTED_CANDIDATE_BUILDER_SOCKET=/run/aios-trusted-candidate-bu
 Environment=AIOS_TRUSTED_CANDIDATE_BUILDER_POLICY=/opt/aios/gitops-model-api/<VERIFIED_PACKAGE_OID>/runtime/config/gitops/trusted-candidate-builder-policy.json
 Environment=AIOS_TRUSTED_CANDIDATE_BUILDER_PUBLIC_KEYRING=/etc/aios-gitops/trusted-builder/public-keyring.json
 Environment=AIOS_TRUSTED_CANDIDATE_BUILDER_CREDENTIALS_DIRECTORY=%d
+Environment=AIOS_TRUSTED_BUILDER_SOURCE_ADMISSION_ROOT=/var/lib/aios-release-source-admission
 Environment=AIOS_SILENT_RELEASE_TRUSTED_POLICY=/opt/aios/gitops-model-api/<VERIFIED_PACKAGE_OID>/runtime/config/gitops/trusted-release-policy.json
 LoadCredential=builder_hmac:/etc/aios-gitops/credential-references/trusted-candidate-builder-hmac
+LoadCredential=source_admission_hmac:/etc/aios-gitops/credential-references/release-source-admission-hmac
 # The credential source above is a reference only; no secret value belongs here.
 # Keep execution shadow-disabled and do not add Owner/deploy/tag/baseline switches.
 Environment=AIOS_SILENT_RELEASE_EXECUTION_ENABLED=false

deploy/systemd/aios-gitops-model-api-v2r2c1-staging.service

@@ -27,6 +27,7 @@ Environment=AIOS_GITOPS_DEPLOYMENT_STATE=STAGING
 Environment=AIOS_GITOPS_MODEL_API_SERVICE=aios-gitops-model-api-v2r2c1-staging.service
 Environment=AIOS_SILENT_RELEASE_EXECUTION_ENABLED=false
 Environment=AIOS_SILENT_RELEASE_STATE_ROOT=/var/lib/aios-gitops/model-api-staging/silent-release
+Environment=AIOS_TRUSTED_BUILDER_SOURCE_ADMISSION_ROOT=/var/lib/aios-release-source-admission
 Environment=AIOS_BRIDGE_V2_URL=http://127.0.0.1:18892
 Environment=AIOS_GITOPS_HOST=127.0.0.1
 Environment=AIOS_GITOPS_PORT=18893
@@ -44,7 +45,7 @@ ProtectControlGroups=true
 LockPersonality=true
 RestrictSUIDSGID=true
 RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
-ReadOnlyPaths=@RUNTIME_ROOT@ /data/aios-gitops/repo.git /var/lib/aios-gitops-runtime-anchor/baseline
+ReadOnlyPaths=@RUNTIME_ROOT@ /data/aios-gitops/repo.git /var/lib/aios-gitops-runtime-anchor/baseline -/var/lib/aios-release-source-admission
 ReadWritePaths=/var/lib/aios-gitops/model-api-staging
 
 [Install]

deploy/systemd/aios-release-source-admission.service

@@ -0,0 +1,41 @@
+[Unit]
+Description=AIOS governed release source admission
+After=network-online.target aios-gitea.service
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+User=root
+Group=gitops
+UMask=0027
+Environment=AIOS_GITOPS_WRITES_ENABLED=false
+Environment=AIOS_GITOPS_REPOSITORY_IDENTITY=aios/aios
+Environment=AIOS_GITOPS_AUTHORITATIVE_GIT_DIR=/data/aios-gitops/repo.git
+Environment=AIOS_GITEA_API_BASE=https://g.cnnetmkt.top/git/api/v1
+Environment=AIOS_GITEA_REMOTE_URL=https://g.cnnetmkt.top/git/aios/aios.git
+Environment=AIOS_GITEA_MACHINE_CREDENTIAL_NAME=gitea-machine-token
+EnvironmentFile=/run/aios-release-source-admission/request.env
+LoadCredentialEncrypted=gitea-machine-token:/etc/aios/credentials/gitea-machine.token.cred
+LoadCredentialEncrypted=source_admission_hmac:/etc/credstore.encrypted/aios-release-source-admission/source_admission_hmac
+ExecStart=/usr/bin/python3 -B /opt/aios/release-source-admission/current/app/release_source_admission.py admit --version ${AIOS_RELEASE_VERSION} --task-id ${AIOS_RELEASE_TASK_ID} --source-ref ${AIOS_RELEASE_SOURCE_REF} --source-commit ${AIOS_RELEASE_SOURCE_COMMIT} --policy /opt/aios/trusted-candidate-builder/current/config/gitops/trusted-candidate-builder-policy.json --store-root /var/lib/aios-release-source-admission
+ExecStartPost=/usr/bin/rm -f /run/aios-release-source-admission/request.env
+RuntimeDirectory=aios-release-source-admission
+RuntimeDirectoryMode=0750
+StateDirectory=aios-release-source-admission
+StateDirectoryMode=0750
+NoNewPrivileges=true
+PrivateTmp=true
+PrivateDevices=true
+ProtectSystem=strict
+ProtectHome=true
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectControlGroups=true
+LockPersonality=true
+RestrictSUIDSGID=true
+RestrictRealtime=true
+MemoryDenyWriteExecute=true
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6
+CapabilityBoundingSet=
+ReadOnlyPaths=/opt/aios/release-source-admission /opt/aios/trusted-candidate-builder /etc/aios/credentials /etc/credstore.encrypted
+ReadWritePaths=/data/aios-gitops/repo.git /var/lib/aios-release-source-admission /run/aios-release-source-admission

deploy/systemd/aios-trusted-candidate-builder.service

@@ -10,10 +10,12 @@ Group=root
 UMask=0077
 LoadCredentialEncrypted=signing_private_key:/etc/credstore.encrypted/aios-trusted-candidate-builder/signing_private_key
 LoadCredentialEncrypted=builder_hmac:/etc/credstore.encrypted/aios-trusted-candidate-builder/builder_hmac
+LoadCredentialEncrypted=source_admission_hmac:/etc/credstore.encrypted/aios-release-source-admission/source_admission_hmac
 Environment=AIOS_TRUSTED_BUILDER_POLICY=/opt/aios/trusted-candidate-builder/current/config/gitops/trusted-candidate-builder-policy.json
 Environment=AIOS_TRUSTED_BUILDER_GIT_DIR=/data/aios-gitops/repo.git
 Environment=AIOS_TRUSTED_BUILDER_EVIDENCE_ROOT=/var/lib/aios-trusted-candidate-builder/evidence
 Environment=AIOS_TRUSTED_BUILDER_NONCE_LEDGER=/var/lib/aios-trusted-candidate-builder/nonce-ledger.json
+Environment=AIOS_TRUSTED_BUILDER_SOURCE_ADMISSION_ROOT=/var/lib/aios-release-source-admission
 Environment=AIOS_TRUSTED_BUILDER_KEY_ID=builder-attestation-ed25519-g1
 Environment=AIOS_TRUSTED_BUILDER_KEY_GENERATION=1
 Environment=PYTHONDONTWRITEBYTECODE=1
@@ -37,7 +39,7 @@ MemoryDenyWriteExecute=true
 RestrictSUIDSGID=true
 SystemCallArchitectures=native
 CapabilityBoundingSet=
-ReadOnlyPaths=/opt/aios/trusted-candidate-builder /data/aios-gitops/repo.git /var/lib/aios-trusted-candidate-builder/evidence
+ReadOnlyPaths=/opt/aios/trusted-candidate-builder /data/aios-gitops/repo.git /var/lib/aios-trusted-candidate-builder/evidence -/var/lib/aios-release-source-admission
 ReadWritePaths=/var/lib/aios-trusted-candidate-builder
 
 [Install]

docs/architecture/adr-owner-final-merge-authorization-v2.md

@@ -0,0 +1,76 @@
+# ADR: Owner-final governed merge authorization v2
+
+Date: 2026-09-07
+
+Status: Accepted for the P0 Owner-final authorization repair
+
+## Context
+
+AIOS is a single-Owner system.  A signer, verifier, required check, branch
+protection rule, or merge executor may prove or execute an Owner decision, but
+must not become an independent policy authority that can permanently override
+an exact, valid Owner authorization.
+
+The legacy approval seam also names the proof implementation as the Owner
+identity.  That conflates the policy subject with a key or adapter and makes a
+default signer outage look like a higher-level veto.
+
+## Decision
+
+Introduce the versioned `aios.owner-merge-approval.v2` artifact and make it
+the policy input to a governed merge admission.  Its canonical payload binds:
+
+- repository, pull-request number and exact pull-request head OID;
+- the expected `main` OID used as the CAS base;
+- `merge.pull-request` as the only operation;
+- required-check contract digest, policy version/digest and audit lineage
+  digest;
+- generated approval ID and nonce, issued/not-before/expiry times; and
+- a distinct Owner policy identity plus the separate proof key identity.
+
+The structured Owner authority creates the complete canonical payload from an
+immutable merge policy.  It accepts no arbitrary caller bytes and has no
+generic signing operation.  Changing PR head, CAS base, policy, repository,
+operation, or approval expiry invalidates the approval; a new policy-bound
+approval is required.
+
+An issuance ledger replays the same still-valid artifact for idempotent client
+delivery, retains expired artifacts for audit, and issues a fresh approval
+with a new nonce after expiry.  It must never turn an expired approval into a
+permanent signing deadlock.
+
+Proof verification is public-key based.  A recovery verifier validates an
+already-issued v2 approval against the registered Owner root without calling
+the default signing service.  It is not a second policy principal and cannot
+mint, broaden, or replace an Owner approval.  Absence of every trusted proof
+fails closed.
+
+## Governing merge admission
+
+The admission service consumes a valid approval only after independent live
+technical evidence satisfies the exact required-check contract.  It then
+durably claims the approval nonce before requesting the protected merge.  A
+duplicate or uncertain nonce is never retried as another side effect.  The
+executor remains responsible for branch protection and CAS; its result is
+accepted only after Authority, Gitea, and repository API OID reconciliation.
+
+Owner approval never writes a check result and never converts failed CI,
+security, provenance, repository-boundary, or OID-integrity evidence into
+PASS.  Failure of those gates remains fail-closed.  A post-side-effect
+reconciliation failure is recorded as unknown/reconciliation-required, not
+reported as a successful merge or blindly retried.
+
+## Consequences
+
+The model distinguishes three roles:
+
+```text
+Owner approval        decides whether this exact merge is allowed
+signer/verifier       proves that exact Owner decision and its binding
+technical gates/CAS   establish whether the merge can safely execute
+merge executor        performs the protected operation and records outcome
+```
+
+The v2 contract is additive and versioned.  It does not reinterpret legacy
+approvals or relax existing branch protection, CI, security, provenance,
+tenant-boundary, nonce, expiry, audit, or reconciliation controls.

docs/architecture/adr-repository-discovery-p0.md

@@ -0,0 +1,79 @@
+# ADR: Bounded Immutable Repository Discovery
+
+- Status: Implemented locally; pending governed publication and live runtime
+  deployment
+- Date: 2026-09-02
+- Scope: AIOS Repository Discovery P0
+
+## Context
+
+Repository discovery was needed to inspect unknown paths and compare exact
+repository snapshots, while the ordinary SSH route was not an authenticated
+execution plane. The discovery surface must not turn a readable runtime into a
+general-purpose shell, grep, checkout, or Git writer. It also must remain safe
+when a branch or tag moves between requests and when a diff is large.
+
+## Decision
+
+Implement a repository-scoped, read-only module behind the formal Bridge and
+Actions read routes:
+
+1. Verify the exact `aios/aios` identity before every request.
+2. Resolve `HEAD`, branch, tag, or full commit input to one full commit OID;
+   reject ambiguous short names and revision expressions.
+3. Invoke only fixed read-only Git subcommands (`rev-parse`, `ls-tree`,
+   `cat-file`, and `diff`) with `shell=False`, disabled prompts, and bounded
+   output. Stream NUL-delimited tree and diff records rather than collecting a
+   complete tree or patch.
+4. Enforce normalized relative paths, repository allowlisting, depth/page/
+   match/byte limits, binary-source exclusion, and no patch response.
+5. Sign pagination cursors with an HMAC over the operation, repository,
+   resolved OID, complete normalized query, and offset. A cursor for another
+   snapshot or query is invalid.
+6. Return resolved commit identity for every read and blob identity for file
+   reads. Keep the four operations read-only and non-consequential at the
+   Bridge contract boundary.
+7. Keep the mutating implementation workflow separate: Task and TaskPrincipal
+   admission, claim/heartbeat, WriterLease, CAS, and `commitFilesGoverned` are
+   still mandatory for source changes.
+
+The canonical runtime paths are `/v2/repository/*`; the Actions adapter maps
+the same contract to `/api/repository/*`. The OpenAPI document records the
+mapping without copying a Path Item or duplicating operation IDs.
+
+## Alternatives rejected
+
+- Retrying arbitrary SSH credentials or inventing a new network profile would
+  bypass the supported execution-plane boundary.
+- User-controlled `grep`, shell commands, checkout paths, or direct bare-repo
+  reads would make the repository and host boundary non-deterministic.
+- Reusing the write route would introduce unnecessary Task/lease/credential
+  authority into a read-only request and make a read endpoint a write probe.
+- Returning a full patch or collecting all Git output before pagination would
+  violate the bounded-output requirement for large repositories.
+
+## Consequences
+
+The API callers must carry the returned OID/cursor and must not assume that a
+floating ref remains unchanged. Search may return fewer results when its byte
+bound is exhausted, and a diff is an index rather than a patch. Cursor secret
+configuration becomes a required runtime dependency for paginated operations.
+
+The isolated implementation is testable against a disposable bare repository.
+Windows can compile and run the portable discovery tests, but importing the
+full Bridge/Actions runtime requires POSIX `fcntl`; Linux HTTP and locking
+integration remains a separate verification item.
+
+At the time of this decision, live HTTPS authority/runtime readback was
+available, but the live OpenAPI/capability surface did not advertise these four
+discovery operations and no authorized P0 Task envelope was present in the
+execution context. Therefore this ADR does not claim a governed commit,
+remote publication, or deployed runtime.
+
+## Verification gate
+
+This decision is complete for local implementation only after Python compile,
+discovery unit/large-diff tests, and Bridge/OpenAPI/Actions drift tests pass.
+It becomes live only after a formal Task, TaskPrincipal, lease, governed
+commit, and independent authority/remote/API OID readback prove the exact same
+commit, with all frozen write and staging invariants unchanged.

docs/architecture/adr-task-admission-bootstrap-p0.md

@@ -0,0 +1,102 @@
+# ADR: P0-0 Task Admission Bootstrap without weakening TaskPrincipal
+
+Date: 2026-09-03
+Status: Candidate for semantic port
+
+## Context
+
+The live control plane can expose governed writer operations while still being
+unable to create the Agent Task/TaskLease required by TaskPrincipal. This is a
+bootstrap deadlock, not a reason to enable global repository writes.
+
+The safety invariant is:
+
+```text
+Owner / durable delegation
+  -> Task admission grant
+  -> real Agent Task
+  -> claim + heartbeat + TaskLease
+  -> TaskPrincipal
+  -> WriterLease
+  -> governed commit
+```
+
+`GovernedTaskBootstrap.create()` may create a GitOps binding/Job. It is not, by
+itself, evidence of an Agent Task claim or TaskLease.
+
+## Decision
+
+Introduce a narrow Task Admission Bootstrap substrate with three operations:
+
+- `getTaskAdmissionEnvelope`
+- `submitTaskAdmissionAuthorization`
+- `getTaskAdmissionStatus`
+
+The envelope normalizes and binds repository, source OID, target branch,
+generation, execution digest, capabilities, file allowlist, risk, policy digest,
+expiry and nonce.
+
+Authorization is accepted only from:
+
+1. an already-verified `OwnerDelegationEpoch`; or
+2. an Owner signature over the exact canonical envelope.
+
+There is deliberately no permissive default authorization backend.
+
+The derived `TaskAdmissionGrant` can only narrow the parent authorization.
+Production, tag, baseline, main, global-write, force-push, runtime-anchor and
+arbitrary-shell capabilities are explicitly rejected.
+
+The grant is passed to the existing Agent Task control plane via an injected
+`TaskAdmissionPort`. This component never writes the Task database.
+
+The production adapter accepts only a service-managed official Task transport;
+it never returns its control credential. It first reconciles the exact task
+identity, then POSTs the official `/v1/tasks` contract only if absent, and
+reconciles an ambiguous response before reporting `UNKNOWN`. Task receipts use
+actual `QUEUED`, `CLAIMED`, or `RUNNING` state, never a synthetic ready state.
+
+Durable epochs are resolved through an injected provider that receives the
+authenticated caller identity from trusted middleware. A body-supplied epoch
+identifier is only a lookup key. The existing durable preparation authorization
+does not become file-write or TaskPrincipal authority.
+
+TaskPrincipal is not used to bootstrap the Task. It remains downstream of a
+real claim/TaskLease.
+
+## Crash / replay semantics
+
+Envelope creation is idempotent by exact request digest.
+
+Authorization/admission is durable and exact replay returns the same Task
+receipt. A SQLite `BEGIN IMMEDIATE` claim persists the immutable grant and its
+authorization-proof digest before the Task side effect. Cross-instance callers
+observe the durable envelope winner; a different proof cannot replace the
+stored grant. The live Task API retains the second exact-identity boundary.
+
+A crash after authorization but before Task API admission must resume the same
+envelope/grant identity. It must not create a replacement task or widen scope.
+
+## Integration rule for current live authority
+
+The source snapshot used for this candidate is not proven byte-identical to the
+2026-09-03 live authority. Therefore the code is a semantic-port candidate.
+
+The live integration must:
+
+- preserve existing TaskPrincipal verification;
+- adapt `TaskAdmissionPort` to the actual Agent Task API;
+- adapt `OwnerAuthorizationBackend` to the actual trusted Owner/delegation
+  verifier;
+- expose admission routes outside the TaskPrincipal gate, because the
+  cryptographic/delegation proof is the bootstrap authority;
+- never turn the runtime anchor into a writer;
+- never use Gitea/SSH/downstream credentials as Owner authority;
+- publish OpenAPI/capability metadata only when handlers are actually wired.
+
+## Consequences
+
+The control plane can become unattended after one durable Owner delegation
+epoch, while retaining fail-closed boundaries. If no valid delegation exists,
+the only legitimate stop is an already-generated canonical signing envelope
+awaiting the Owner's cryptographic signature.

docs/architecture/adr-task-lineage-supersession-p0.md

@@ -0,0 +1,38 @@
+# ADR: Owner Scoped Task Lineage Supersession P0
+
+## 决策
+
+`TASK-SINGLEHOST-LINEAGE-SUPERSESSION-P0-20260905` 新增一个只服务于
+`TASK-SINGLEHOST-TRUSTROOT-P0-20260904` 到
+`TASK-SINGLEHOST-TRUSTROOT-P0-20260904-S1` 的控制面 capability。
+它创建 append-only child lineage；绝不重写 source Task、metadata、revision、attempt、claim 或 lease。
+
+## 安全边界
+
+请求只携带 Owner decision 和 source 身份断言。控制面复用正式 Task identity helper
+与现有 Owner verifier，严格校验 namespace、principal、当前 Owner key、短 TTL、nonce、
+decision ID、exact-CAS 字段以及唯一 child ID/ordinal。未知字段、任意 child payload、通配
+Task/repository/branch、旧 signer 或 replay 均 fail-closed。
+
+child payload 由 canonical initial-execution profile 在服务端构造：`QUEUED`、revision 1、
+attempt 0、无 claim/lease、空初始 capabilities 和 pristine metadata。child 普通 event 链
+只允许 `TASK_CREATED`；lineage/decision/receipt 审计必须写入独立 append-only 表。
+
+## 一致性和重放
+
+单一 `BEGIN IMMEDIATE` 事务重读 source exact-CAS、检查 source+ordinal/child/decision/nonce
+唯一性、插入 child、lineage、decision 和 receipt，并整体提交。任一步失败必须回滚，不能
+留下半创建 child。只有 decision digest 完全相同的请求可返回同一 receipt；相同唯一键而
+digest 不同必须拒绝。append-only 表禁止 UPDATE 和 DELETE。
+
+## ClaimGuard
+
+source 的 frozen ClaimGuard artifact 永不修改。child 的 Task identity 和 projected metadata
+identity 必然不同，必须使用新建的版本化、append-only child binding/receipt，精确绑定
+child task、projected revision/metadata/capabilities、worker、execution digest、repository、
+branch、generation 和 external job。dispatch 只识别 source 与 exact child；缺失或重复 binding
+一律拒绝。不得使用 latest、通配符或 caller 指定路径。
+
+## 验收
+
+live invocation 前必须在 isolated SQLite 完成 source exact state 到 canonical projection、

docs/gitops/openapi-chatgpt-actions.yaml

@@ -240,11 +240,177 @@ components:
       additionalProperties: false
       properties:
         candidate_id: {type: string}
+    RepositoryTreeEntry:
+      type: object
+      required: [path, type, object_oid]
+      properties:
+        path: {type: string, minLength: 1, maxLength: 512}
+        type: {type: string, enum: [blob, tree, commit]}
+        object_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        mode: {type: string}
+    RepositoryTreeResponse:
+      type: object
+      required: [repository, resolved_oid, entries, truncated, next_cursor]
+      properties:
+        repository: {type: string, const: aios/aios}
+        resolved_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        entries: {type: array, items: {$ref: '#/components/schemas/RepositoryTreeEntry'}}
+        truncated: {type: boolean}
+        next_cursor: {type: string, nullable: true, maxLength: 4096}
+    RepositorySearchMatch:
+      type: object
+      required: [path, line_start, line_end, blob_oid, snippet]
+      properties:
+        path: {type: string, minLength: 1, maxLength: 512}
+        line_start: {type: integer, minimum: 1}
+        line_end: {type: integer, minimum: 1}
+        blob_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        snippet: {type: string, maxLength: 512}
+    RepositorySearchResponse:
+      type: object
+      required: [repository, resolved_oid, matches, scanned_bytes, max_bytes, truncated, next_cursor]
+      properties:
+        repository: {type: string, const: aios/aios}
+        resolved_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        matches: {type: array, items: {$ref: '#/components/schemas/RepositorySearchMatch'}}
+        scanned_bytes: {type: integer, minimum: 0}
+        max_bytes: {type: integer, minimum: 1, maximum: 1048576}
+        binary_blobs_skipped: {type: integer, minimum: 0}
+        truncated: {type: boolean}
+        next_cursor: {type: string, nullable: true, maxLength: 4096}
+    RepositoryDiffEntry:
+      type: object
+      required: [path, status, additions, deletions, old_path]
+      properties:
+        path: {type: string, minLength: 1, maxLength: 512}
+        status: {type: string, pattern: '^[ACDMRTUX][0-9]*$'}
+        additions: {type: integer, nullable: true, minimum: 0}
+        deletions: {type: integer, nullable: true, minimum: 0}
+        old_path: {type: string, nullable: true, maxLength: 512}
+    RepositoryDiffIndexResponse:
+      type: object
+      required: [repository, resolved_from_oid, resolved_to_oid, entries, truncated, next_cursor]
+      properties:
+        repository: {type: string, const: aios/aios}
+        resolved_from_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        resolved_to_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        entries: {type: array, items: {$ref: '#/components/schemas/RepositoryDiffEntry'}}
+        truncated: {type: boolean}
+        next_cursor: {type: string, nullable: true, maxLength: 4096}
+    RepositoryFileResponse:
+      type: object
+      required: [repository, resolved_oid, blob_oid, path, content, content_base64, content_bytes, truncated]
+      properties:
+        repository: {type: string, const: aios/aios}
+        resolved_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        blob_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        path: {type: string, minLength: 1, maxLength: 512}
+        content: {type: string}
+        content_base64: {type: string, format: byte}
+        content_bytes: {type: integer, minimum: 0}
+        truncated: {type: boolean}
 paths:
+  /v2/repository/tree:
+    get:
+      operationId: listRepositoryTree
+      summary: List one bounded page of an immutable repository tree
+      security: []
+      x-openai-isConsequential: false
+      x-aios-read-only: true
+      x-aios-bounded: true
+      x-aios-repository-scoped: true
+      x-aios-no-shell: true
+      x-aios-legacy-path: /api/repository/tree
+      parameters:
+        - {in: query, name: repository, required: true, schema: {type: string, const: aios/aios}}
+        - {in: query, name: ref, required: true, schema: {type: string, minLength: 1, maxLength: 240}}
+        - {in: query, name: prefix, schema: {type: string, maxLength: 512}}
+        - {in: query, name: depth, schema: {type: integer, minimum: 1, maximum: 32, default: 8}}
+        - {in: query, name: limit, required: true, schema: {type: integer, minimum: 1, maximum: 1000}}
+        - {in: query, name: cursor, schema: {type: string, maxLength: 4096}}
+      responses:
+        '200': {description: Immutable tree page, content: {application/json: {schema: {$ref: '#/components/schemas/RepositoryTreeResponse'}}}}
+        '400': {description: Invalid repository, ref, path, bounds, or cursor}
+        '403': {description: Repository identity is not allowed}
+        '404': {description: Repository ref or path not found}
+        '503': {description: Authoritative repository or discovery configuration unavailable}
+  /v2/repository/search:
+    get:
+      operationId: searchRepositorySource
+      summary: Search bounded source blobs at one immutable repository revision
+      security: []
+      x-openai-isConsequential: false
+      x-aios-read-only: true
+      x-aios-bounded: true
+      x-aios-repository-scoped: true
+      x-aios-no-shell: true
+      x-aios-legacy-path: /api/repository/search
+      parameters:
+        - {in: query, name: repository, required: true, schema: {type: string, const: aios/aios}}
+        - {in: query, name: ref, required: true, schema: {type: string, minLength: 1, maxLength: 240}}
+        - {in: query, name: query, required: true, schema: {type: string, minLength: 1, maxLength: 512}}
+        - {in: query, name: path_globs, style: form, explode: true, schema: {type: array, maxItems: 16, items: {type: string, maxLength: 512}}}
+        - {in: query, name: max_matches, required: true, schema: {type: integer, minimum: 1, maximum: 1000}}
+        - {in: query, name: max_bytes, required: true, schema: {type: integer, minimum: 1, maximum: 1048576}}
+        - {in: query, name: cursor, schema: {type: string, maxLength: 4096}}
+      responses:
+        '200': {description: Bounded source matches with blob identity, content: {application/json: {schema: {$ref: '#/components/schemas/RepositorySearchResponse'}}}}
+        '400': {description: Invalid repository, ref, query, path glob, bounds, or cursor}
+        '403': {description: Repository identity is not allowed}
+        '404': {description: Repository ref not found}
+        '503': {description: Authoritative repository or discovery configuration unavailable}
+  /v2/repository/diff-index:
+    get:
+      operationId: getDiffIndex
+      summary: List a bounded immutable diff index without returning a patch
+      security: []
+      x-openai-isConsequential: false
+      x-aios-read-only: true
+      x-aios-bounded: true
+      x-aios-repository-scoped: true
+      x-aios-no-shell: true
+      x-aios-legacy-path: /api/repository/diff-index
+      parameters:
+        - {in: query, name: repository, required: true, schema: {type: string, const: aios/aios}}
+        - {in: query, name: from, required: true, schema: {type: string, minLength: 1, maxLength: 240}}
+        - {in: query, name: to, required: true, schema: {type: string, minLength: 1, maxLength: 240}}
+        - {in: query, name: path_prefix, schema: {type: string, maxLength: 512}}
+        - {in: query, name: limit, required: true, schema: {type: integer, minimum: 1, maximum: 1000}}
+        - {in: query, name: cursor, schema: {type: string, maxLength: 4096}}
+      responses:
+        '200': {description: Bounded diff index with immutable endpoints, content: {application/json: {schema: {$ref: '#/components/schemas/RepositoryDiffIndexResponse'}}}}
+        '400': {description: Invalid repository, revision, path prefix, bounds, or cursor}
+        '403': {description: Repository identity is not allowed}
+        '404': {description: Repository revision not found}
+        '503': {description: Authoritative repository or discovery configuration unavailable}
+  /v2/repository/file:
+    get:
+      operationId: readRepositoryFile
+      summary: Read one bounded file from an immutable repository revision
+      security: []
+      x-openai-isConsequential: false
+      x-aios-read-only: true
+      x-aios-bounded: true
+      x-aios-repository-scoped: true
+      x-aios-no-shell: true
+      x-aios-legacy-path: /api/repository/file
+      parameters:
+        - {in: query, name: repository, required: true, schema: {type: string, const: aios/aios}}
+        - {in: query, name: ref, required: true, schema: {type: string, minLength: 1, maxLength: 240}}
+        - {in: query, name: path, required: true, schema: {type: string, minLength: 1, maxLength: 512}}
+        - {in: query, name: max_bytes, schema: {type: integer, minimum: 1, maximum: 1048576, default: 262144}}
+      responses:
+        '200': {description: Bounded file content with resolved commit and blob identity, content: {application/json: {schema: {$ref: '#/components/schemas/RepositoryFileResponse'}}}}
+        '400': {description: Invalid repository, ref, path, or bounds}
+        '403': {description: Repository identity is not allowed}
+        '404': {description: Repository ref or file not found}
+        '503': {description: Authoritative repository or discovery configuration unavailable}
   /v2/commit-files:
     post:
       operationId: commitFilesGoverned
       summary: Submit one atomic governed commit containing multiple files
+      security: [{taskPrincipalAuth: []}]
+      x-aios-task-principal: Bridge resolves a fresh server-side TaskPrincipal from the authoritative admitted+claimed Task and re-verifies its Owner epoch, then checks exact task/job/repository/branch/generation/capability binding; caller JSON cannot provide a principal and missing verification is denied. An explicitly injected legacy bearer verifier may still be used by a trusted host.
       requestBody:
         required: true
         content:
@@ -254,6 +420,7 @@ paths:
               additionalProperties: false
               required:
                 - task_id
+                - job_id
                 - repository
                 - expected_branch_oid
                 - target_branch
@@ -283,8 +450,12 @@ paths:
                 message: {type: string, minLength: 1, maxLength: 200}
       responses:
         '200': {description: Governed commit job and verified branch result}
+        '202': {description: Existing external Job alias requires authoritative reconciliation; no replacement Job is created}
+        '401': {description: No verified Task principal is available}
+        '403': {description: Verified Task principal lacks exact task, external Job, or capability scope}
         '400': {description: Contract or policy rejection}
         '409': {description: Branch CAS or idempotency conflict}
+        '423': {description: Narrow P0 Task-principal mutation gate is frozen; assertion is not consumed}
   /createReleaseIntent:
     post:
       operationId: createReleaseIntent

docs/gitops/openapi-task-admission-bootstrap-fragment.yaml

@@ -0,0 +1,109 @@
+# AIOS Task Admission Bootstrap OpenAPI fragment.
+# Integrate into the canonical Bridge OpenAPI only when the corresponding live
+# handlers and authorization backend are configured. This fragment does not
+# enable legacy repository mutation or change TaskPrincipal/WriterLease gates.
+
+components:
+  schemas:
+    TaskAdmissionEnvelopeRequest:
+      type: object
+      additionalProperties: false
+      required:
+        - idempotency_key
+        - task_id
+        - repository
+        - authority_base_oid
+        - target_branch
+        - generation
+        - execution_digest
+        - requested_capabilities
+        - file_allowlist
+        - risk
+      properties:
+        idempotency_key: {type: string, minLength: 8, maxLength: 256}
+        task_id: {type: string, minLength: 3, maxLength: 180}
+        repository: {type: string, enum: [aios/aios]}
+        authority_base_oid: {type: string, pattern: '^[0-9a-f]{40}$'}
+        target_branch: {type: string, pattern: '^agent/.+'}
+        generation: {type: integer, minimum: 1}
+        execution_digest: {type: string, pattern: '^[0-9a-f]{64}$'}
+        requested_capabilities:
+          type: array
+          minItems: 1
+          uniqueItems: true
+          items: {type: string}
+        file_allowlist:
+          type: array
+          minItems: 1
+          uniqueItems: true
+          items: {type: string}
+        risk: {type: string, enum: [low, medium]}
+        expires_in_seconds:
+          type: integer
+          minimum: 60
+          maximum: 900
+
+    TaskAdmissionAuthorizationRequest:
+      type: object
+      additionalProperties: false
+      required: [envelope_id, authorization_kind]
+      properties:
+        envelope_id: {type: string}
+        authorization_kind:
+          type: string
+          enum: [delegation_epoch, owner_signature]
+        delegation_epoch_id: {type: string}
+        owner_key_id: {type: string}
+        signature_base64: {type: string}
+
+paths:
+  /v2/task-admission/envelope:
+    post:
+      operationId: getTaskAdmissionEnvelope
+      summary: Build and persist a canonical narrow Task admission envelope
+      description: >
+        No Git/Task mutation occurs. The server normalizes repository, branch,
+        capabilities, file allowlist, risk, policy digest, expiry and nonce.
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema: {$ref: '#/components/schemas/TaskAdmissionEnvelopeRequest'}
+      responses:
+        '200': {description: Canonical envelope and signing payload}
+        '403': {description: Requested scope exceeds bootstrap policy}
+        '409': {description: Idempotency key conflicts with a different request}
+
+  /v2/task-admission/authorize:
+    post:
+      operationId: submitTaskAdmissionAuthorization
+      summary: Verify durable delegation or Owner signature and admit one exact Task
+      description: >
+        This operation does not accept a general-purpose bearer as authority.
+        Authorization is proven by a verified OwnerDelegationEpoch or by the
+        Owner signature over the exact canonical envelope. The resulting grant
+        can only narrow scope and is handed to the existing Agent Task API.
+        A delegation identifier in caller JSON is insufficient: the backend
+        binds the verified parent epoch to the authenticated service caller.
+      requestBody:
+        required: true
+        content:
+          application/json:
+            schema: {$ref: '#/components/schemas/TaskAdmissionAuthorizationRequest'}
+      responses:
+        '200': {description: Exact QUEUED, CLAIMED, or RUNNING Task receipt or idempotent replay}
+        '403': {description: Invalid, expired, revoked or widened authorization}
+        '409': {description: Conflicting idempotent admission}
+
+  /v2/task-admission/status:
+    get:
+      operationId: getTaskAdmissionStatus
+      summary: Read durable Task-admission state
+      parameters:
+        - in: query
+          name: envelope_id
+          required: true
+          schema: {type: string}
+      responses:
+        '200': {description: Pending or admitted receipt}
+        '404': {description: Envelope not found}

docs/gitops/repository-discovery-p0-runbook.md

@@ -0,0 +1,117 @@
+# Repository Discovery P0 Runbook
+
+This runbook covers the read-only repository discovery surface and the
+governed workflow used to publish a change to it. It does not authorize a
+production deployment, a protected-ref update, a tag operation, or a runtime
+mode change.
+
+## Safety invariants
+
+Before any operation, record the repository identity and the exact authority
+OID. The only repository identity in this contract is `aios/aios`. A floating
+ref is resolved once; all subsequent reads in the response are bound to the
+returned full `resolved_oid` (or `resolved_from_oid` and `resolved_to_oid` for
+a diff) and, for files, the returned `blob_oid`.
+
+The following invariants remain frozen for this P0:
+
+```text
+AIOS_GITOPS_WRITES_ENABLED=false
+legacy_global_writes_enabled=false
+18893 runtime_mode=IMMUTABLE_STAGING
+direct bare-repository writes/pushes=forbidden
+direct Task DB writes=forbidden
+```
+
+Discovery is a read-only operation. It does not acquire a WriterLease and it
+does not create a Task. Any implementation change still has to use the formal
+Task → TaskPrincipal → TaskLease/claim/heartbeat → WriterLease →
+`commitFilesGoverned` path. A request to discovery must never be used as a
+write-capability probe.
+
+## Execution-plane preflight
+
+1. Prefer the formal HTTPS control plane at the configured public API/Bridge
+   endpoint. If raw SSH fails before authentication, preserve that evidence
+   and do not retry arbitrary usernames, keys, ports, or shell commands.
+2. Read runtime, capability, snapshot, and OpenAPI facts. Confirm that the
+   authority identity and OID are the expected ones, and record whether the
+   discovery routes are actually deployed on that plane.
+3. Classify the available plane as A (network-enabled Codex profile), B
+   (attested online worker), C (formal HTTPS control plane), or D (existing
+   executor/coordinator). Select only a supported plane; do not invent a new
+   SSH or credential path.
+4. Treat a readable runtime or a candidate branch as evidence of availability,
+   not as authorization to write.
+
+The durable discovery record is
+`execution-plane-discovery.json`. It must not be included in the governed
+source change unless the task explicitly allowlists it.
+
+## Read operations
+
+The canonical Bridge routes are:
+
+| Operation | Method | Required query fields | Optional query fields |
+| --- | --- | --- | --- |
+| `listRepositoryTree` | `GET /v2/repository/tree` | `repository`, `ref`, `limit` | `prefix`, `depth`, `cursor` |
+| `searchRepositorySource` | `GET /v2/repository/search` | `repository`, `ref`, `query`, `max_matches`, `max_bytes` | `path_globs`, `cursor` |
+| `getDiffIndex` | `GET /v2/repository/diff-index` | `repository`, `from`, `to`, `limit` | `path_prefix`, `cursor` |
+| `readRepositoryFile` | `GET /v2/repository/file` | `repository`, `ref`, `path` | `max_bytes` |
+
+The Actions adapter exposes the corresponding read-only legacy paths under
+`/api/repository/*`; the OpenAPI document records each mapping with
+`x-aios-legacy-path`.
+
+Every request is bounded. Repository identity is allowlisted, refs are
+limited to a branch/tag/full commit form, paths are normalized POSIX-relative
+paths, and traversal, option-like paths, shell metacharacters, and ambiguous
+refs fail closed. Search skips binary blobs and enforces its cumulative byte
+bound. Tree, search, and diff responses are paginated. A cursor is an HMAC-
+bound record containing the operation, repository, resolved OID, complete
+query, and offset; never edit or manually construct one.
+
+The diff endpoint returns an index only: status, path, optional old path, and
+bounded additions/deletions. It never returns a patch body. The file endpoint
+returns bounded text plus `content_base64`, `resolved_oid`, and `blob_oid`.
+
+## Publishing an implementation change
+
+1. Preserve the existing dirty worktree. Create a new isolated worktree at
+   the exact authority OID and use a task-scoped branch.
+2. Run discovery unit, pagination, cursor, identity, traversal, binary,
+   max-byte, immutable-head, and large-diff tests. Run the Bridge/OpenAPI/
+   Actions drift tests and compile checks.
+3. Obtain a formal governed Task and keep its exact task, job, generation,
+   idempotency, branch, and base-OID identities. Claim and heartbeat through
+   the supported control plane; do not edit the Task DB or copy a credential.
+4. Acquire the Task-bound principal and WriterLease. Submit the allowlisted
+   source files through `commitFilesGoverned`, then reconcile the Job if the
+   result is uncertain.
+5. Independently read back the authority Git ref, the remote Git API ref, and
+   the control-plane projection. Completion requires three-way equality to the
+   governed commit OID, plus the required deployment/acceptance/restart/
+   official-verification evidence for any release claim.
+
+If the discovery routes are absent from the live OpenAPI/runtime surface, stop
+at local validation. Report the implementation and tests as local evidence and
+mark governed Task, WriterLease, governed commit, and post-commit readback as
+`NOT_VERIFIED`.
+
+## Failure and recovery
+
+- `REPOSITORY_NOT_ALLOWED`, identity mismatch, invalid path/ref, invalid
+  cursor, or ambiguous ref is a client or security rejection; do not broaden
+  the allowlist.
+- An unavailable authority repository or missing cursor secret is a runtime
+  configuration failure; do not disable cursor signing or fall back to a
+  workspace checkout.
+- A timeout, oversized output, or large diff is bounded failure. Narrow the
+  prefix/page or repair the existing supported runtime, never return an
+  unbounded patch.
+- On Windows, a missing `fcntl` means POSIX integration is unverified. Keep
+  the Python compile and portable unit evidence, then rerun the HTTP and file
+  locking probes on the supported Linux runtime.
+
+No recovery step in this runbook resets, cleans, overwrites, force-pushes, or
+auto-commits a user worktree.

docs/gitops/task-admission-bootstrap-p0-runbook.md

@@ -0,0 +1,102 @@
+# Task Admission Bootstrap P0 Runbook
+
+## Goal
+
+Repair the Task-admission bootstrap chain without enabling legacy/global writes.
+
+## Preconditions
+
+Re-read live authority, runtime mode, OpenAPI, capabilities and current Task
+API. Do not assume the package source paths are current.
+
+Required invariants:
+
+```text
+AIOS_GITOPS_WRITES_ENABLED=false
+legacy_global_writes_enabled=false
+18893=IMMUTABLE_STAGING
+main/tag/baseline/production writes=false
+```
+
+## Semantic-port sequence
+
+1. Locate the live Agent Task create/admission implementation.
+2. Locate the current Owner/delegation signature verifier.
+3. Port `aios_task_admission_bootstrap.py` as the common substrate.
+4. Implement `TaskAdmissionPort.admit()` with the official Agent Task API.
+5. Implement `OwnerAuthorizationBackend` with the current trusted verifier.
+6. Wire the three task-admission operations into the existing Bridge.
+7. Keep TaskPrincipal issuance downstream of real Task claim/TaskLease.
+8. Merge the OpenAPI fragment only after the live handlers are wired.
+9. Run impacted Linux/POSIX, TaskPrincipal, Bridge and writer regression.
+10. Create the bootstrap-repair governed commit through the existing sanctioned
+    recovery path.
+11. Use the repaired admission path to create the Repository Discovery P0 Task.
+12. Claim/heartbeat -> TaskLease -> TaskPrincipal -> WriterLease.
+13. Commit only the existing Repository Discovery allowlist through
+    `commitFilesGoverned`.
+14. Reconcile ambiguous outcomes before any retry.
+    Admission uses a per-envelope, crash-releasing SQLite lock under the
+    admission state path's `.locks` directory.  It persists the immutable
+    grant before an effect, then the official Task API GET reconciles any
+    crashed or ambiguous effect before a POST is permitted.
+15. Replays revalidate the supplied proof, policy, expiry and revocation before
+    reading a receipt.  A different otherwise-valid proof conflicts with the
+    persisted authorization digest; it never becomes a harmless receipt replay.
+16. The Task API adapter must receive a server-resolved trusted execution plan
+    for the signed execution digest.  It supplies `metadata.execution` with
+    the exact repository, branch, generation, digest and nonempty external job
+    identifier.  Do not derive a job identity from request JSON or generate one.
+17. Require Authority / remote Git / API OID equality and idempotent replay.
+18. Publish immutable staging artifact and run Repository Discovery live E2E.
+
+## Never do
+
+- direct Task DB inserts/updates;
+- direct bare-repo/ref changes;
+- raw Git push as a substitute for governed publication;
+- borrow SSH/Gitea/service credentials as Owner authorization;
+- disable TaskPrincipal verification;
+- issue TaskPrincipal without a live TaskLease;
+- set global writes true;
+- turn 18893 into a writer;
+- include production/tag/baseline/main permissions in a task grant.
+
+## Acceptance
+
+Bootstrap repair:
+
+```text
+ENVELOPE_EXACT_REPLAY=PASS
+SCOPE_NARROWING=PASS
+DELEGATION_REVOKE_EXPIRY=PASS
+OWNER_SIGNATURE_VERIFY=PASS
+CONCURRENT_ADMISSION_SINGLE_TASK=PASS
+TASK_DB_DIRECT_WRITE=false
+TASKPRINCIPAL_BYPASS=false
+GLOBAL_WRITES=false
+CRASH_AFTER_EFFECT_REPLAY=PASS
+CRASH_BEFORE_EFFECT_REPLAY=PASS
+CHANGED_VALID_PROOF_CONFLICT=PASS
+TASK_API_EXACT_IDENTITY=PASS
+```
+
+These are implementation and test acceptance conditions only.  They are not
+evidence of a live claim, governed publication, remote OID equality, or staging
+E2E execution; obtain those independently through the sanctioned live runbook.
+
+Repository Discovery publication:
+
+```text
+TASK_CREATED=PASS
+TASK_CLAIMED=PASS
+TASK_HEARTBEAT=PASS
+TASK_LEASE=PASS
+TASK_PRINCIPAL=PASS
+WRITER_LEASE=PASS
+COMMIT_FILES_GOVERNED=PASS
+AUTHORITY_REMOTE_API_OID_EQUAL=PASS
+IDEMPOTENCY_REPLAY=PASS
+STAGING_LIVE_E2E=PASS
+TASK_VERIFIED=SUCCEEDED
+```

docs/gitops/task-lineage-supersession-p0-runbook.md

@@ -0,0 +1,32 @@
+# Task Lineage Supersession P0 Runbook
+
+## 范围锁定
+
+只允许 source `TASK-SINGLEHOST-TRUSTROOT-P0-20260904`、ordinal `1` 与 child
+`TASK-SINGLEHOST-TRUSTROOT-P0-20260904-S1`。每次 live 操作前从 Task API/DB 的只读正式路径
+重读 source：必须是 `EXPIRED`、attempt 0、无 claim/lease，并重新计算正式 identity digest。
+同时确认 repository、branch、generation、execution digest、external job 与 source metadata
+digest 均为 decision 的 exact 值，确认当前 Local Owner Authority 和 global/legacy writes 状态。
+
+## 实施和测试
+
+1. 在专用 staging worktree 完成 controller、API wrapper、migration、child ClaimGuard binding、
+   ADR/runbook 和 isolated SQLite tests。
+2. 覆盖错误 signer/namespace、旧 signer、所有 source CAS 字段漂移、nonce/replay、TTL、
+   child/payload injection、existing child/lineage、projection/ClaimGuard compatibility 的失败路径。
+3. 验证失败后 source 的字节等价快照、child 不存在、没有 lineage/receipt/event 残留。
+4. 在 backup/isolated DB 跑 complete dry-run：supersession -> child rev1 -> Initial Projection ->
+   需要时 Supervisor Projection -> immutable child ClaimGuard binding -> guarded claim attempt 1。
+
+## Staging 激活与 live 操作
+
+仅在测试与 dry-run 全部 PASS 后，将新 API overlay 放在 Task API `PYTHONPATH` 最前并切换到
+lineage wrapper；daemon-reload/restart 仅限非生产 Task API/projection/ClaimGuard 服务。验证
+health 及固定 supersession route 后，再次重读 live source 并通过当前 Owner authority 签发一份
+短 TTL、one-time decision。只调用一次正式 endpoint；不得用 sqlite、maintenance shell、
+direct Git ref 或任意签名接口替代。
+
+## 后续和停止条件
+
+成功后只沿 child lineage：Initial Projection、必要的 Supervisor Projection、新 immutable
+ClaimGuard binding、worker `p0-task-principal-v15-20260830` 的 guarded claim、governed execution。

docs/implementation-baseline-1.1/ACCEPTANCE_MATRIX.md

@@ -0,0 +1,48 @@
+# AIOS Baseline 1.1 验收矩阵
+
+本矩阵定义 AT-01～AT-23 的验收标准和证据边界。它不以“测试文件存在”冒充通过：本次本地自动化的实际命令、退出码和数量以包内测试结果文件为准。下表标注的是覆盖入口及尚需现场核验的范围，单项 AT 只有在全部必要证据齐备后才能标记验收通过。
+
+状态约定：`LOCAL_AUTOMATED` 表示已有可执行本地测试入口；`LOCAL_PARTIAL` 表示只能覆盖该场景的一部分；`SITE_REQUIRED` 表示必须在准确绑定的现场环境补充验收。上述标签不是 PASS。未执行、证据过期、身份不符或无法访问目标均为 `NOT_VERIFIED/UNKNOWN`，不能按健康放行。
+
+| ID | 场景与必须满足的结果 | 本地代码/测试入口 | 当前证据边界与现场补充 |
+| --- | --- | --- | --- |
+| AT-01 | 缺失/过期 observation、错误任务身份、main 与 runtime 不同；UNKNOWN fail-closed；drift 比较 DeploymentTarget 与 observation，不拿 main HEAD 当 desired | `test_contracts.py`、`test_loop.py`；Runtime Contract / deployment evaluator | LOCAL_PARTIAL；需现场核对 Resolver、正式入口、canonical ref 和 artifact identity |
+| AT-02 | 支持包缺文件、改一字节、额外未声明内容必须校验失败；生成身份与内容可追溯 | `test_package_tools.py`；`bundle.py verify/stage` | LOCAL_AUTOMATED（源码包边界）；线上运行镜像与 overlay 构建仍须独立验证 |
+| AT-03 | 每个允许执行的 operation 在 dry-run/shadow 下都不调用副作用 writer，不伪造已执行或发布成功 | `test_job_safety.py`；既有 Job executor dry-run 分支 | LOCAL_PARTIAL；新 adapter 加入注册表时必须补相同负面测试，不能沿用其他 adapter 结论 |
+| AT-04 | 同一有效 Grant 下短期证明过期/服务重启仍能完成后续授权范围内任务；不重复业务审批、不扩大权限 | `test_authorization.py`、`test_loop.py` | LOCAL_AUTOMATED（授权/本地任务）；完整生产发布链仍需 AT-16 |
+| AT-05 | 父 Grant 撤销、过期、签名错误、跨 tenant/subject/scope 重放、伪造 Mapping 在派生与消费两端均拒绝 | `test_authorization.py`、`test_transport.py` | LOCAL_AUTOMATED；真实密钥轮换和撤销传播需部署证据 |
+| AT-06 | 过期 lease、终态 Job 再领 lease、旧 generation 延迟写均拒绝；新 claim 保持独占 | `test_job_safety.py`、`test_worker_host.py`；TaskPlaneStore 原有回归 | LOCAL_PARTIAL；每个实际外部写接收端须证明 fencing 生效，不能只在发送端检查 |
+| AT-07 | 外部成功而 receipt 丢失、对账中止、双 observer 乱序；复用 effect、精确 readback、旧结果不能覆盖新事实 | `test_job_safety.py`、`test_release_lineage.py` | LOCAL_AUTOMATED（可控 effect sink）；实际远端 readback 身份契约需验收 |
+| AT-08 | ready+600 秒后扩大 eligible Worker；普通与 fallback Worker 竞争仍只有一个 CAS claim，不抢有效 lease | `test_worker_host.py`、`test_loop.py`；WorkerProfile/TaskPlaneStore | LOCAL_PARTIAL；需常驻实例 heartbeat/transport 与竞争运行证据；聊天 GPT 不算 Worker |
+| AT-09 | blocked 任务未进入 ready 时不静默无限等待；显示 blocker、持续时间、修复和升级边界 | 服务端状态与错误返回；本包实现范围以源码报告为准 | SITE_REQUIRED；完整 Doctor 自动修复/升级场景不能用普通任务成功代替 |
+| AT-10 | Worker/子进程退出、取消、超时、重启；有限终止、服务端恢复，同 effect 不因缓存丢失重复 | `test_worker_host.py`、`test_loop.py`、`test_transport.py`、`test_job_safety.py` | LOCAL_PARTIAL；实际 systemd kill/restart、取消竞争和主机启动顺序需演练 |
+| AT-11 | 重复提交/事件/回执、提交后投递器退出；outbox 持久、去重、终态不倒退 | `test_loop.py`；TaskPlaneStore outbox 与幂等接口既有测试 | LOCAL_PARTIAL；通知投递器/inbox 的端到端故障仍需专门证据 |
+| AT-12 | 跨 tenant/subject 查询、取消、执行和关联被拒；Worker 不能读服务端私钥和其他工作目录 | `test_authorization.py`、`test_loop.py`、`test_transport.py`、`test_release_lineage.py`；独立 UID unit 模板 | LOCAL_PARTIAL；artifact 下载、cache key、文件权限及真实子进程边界需现场覆盖 |
+| AT-13 | Bridge/provider 独立重启或 token 轮换后使用自身 credential projection，不依赖另一服务临时目录 | 修订现有 staging unit；`deploy/baseline-v1.1/` 凭证模板 | SITE_REQUIRED；静态 unit 不等同于解密、轮换和重启已验证 |
+| AT-14 | 子任务、重复诊断和连续失败不能用新 task ID 重置 Grant 预算；超限有界停止 | `test_authorization.py`；持久 effect 预算；`test_optimization.py` | LOCAL_PARTIAL；目标级总成本、墙钟、模型预算的完整现场计费来源仍须接线 |
+| AT-15 | 支持 profile 可在干净目录执行；错 source/config 的证据不能放行；未绑定线上权威明确拒绝 | `test_package_tools.py`、`test_cli.py`、`test_contracts.py` | LOCAL_AUTOMATED（隔离 profile）；目标 OS、Python、systemd 版本与现场配置仍需记录 |
+| AT-16 | 同一 Grant：patch→tests→受保护 merge→build→staging→业务验收→production→生产业务验收；全程有唯一关联 | `test_release_lineage.py`；ReleaseLedger/recipe/receipt verifier 接口 | SITE_REQUIRED；本包的状态机和模拟 adapter 测试不等于真实发布链已完成 |
+| AT-17 | 编码 Worker 自报成功、伪造 receipt、降低验收规则或读签名私钥不能放行 | `test_authorization.py`、`test_release_lineage.py`、`test_optimization.py`；API/Worker 独立 UID | LOCAL_PARTIAL；生产 verifier 独立职责、规则冻结和私钥访问权限需现场验证 |
+| AT-18 | 优化无改善或越过质量底线不晋升；优化提案只生成受治理任务，不直接写 policy DB | `test_optimization.py`；签名 OptimizationEnvelope | LOCAL_AUTOMATED（提案与质量约束）；真实实验数据来源、回滚及模型成本路由需后续验收 |
+| AT-19 | 旧 schema/任务与新版本并存时保留原签名字节；main 合法前进不等于 runtime drift；旧 handler 明确处理 | `test_authorization.py`、`test_contracts.py`、`test_release_lineage.py` | LOCAL_PARTIAL；线上旧任务排空、writer 停用、迁移/路由策略需现场清单 |
+| AT-20 | 坏候选、控制面不能启动、数据迁移不可逆时只允许兼容回退或前向修复；无万能 root | `test_release_lineage.py`、`test_package_tools.py`；源码回滚、Release 回退约束 | LOCAL_PARTIAL；数据库迁移/外部副作用不由源码 rollback 撤销；独立最小恢复流程需现场演练 |
+| AT-21 | SQLite/Git/receipt 一致备份在隔离环境恢复，保留身份和未决 effect；实测 RPO/RTO | 各 ledger 重启测试是局部依据；安装文档给出一致备份边界 | SITE_REQUIRED；本包没有以“可重开 SQLite”宣称整机备份恢复验收通过 |
+| AT-22 | persist intent→外部 effect 成功→主机在 receipt 落盘前失去执行能力；恢复同 effect→RECONCILIATION_REQUIRED→readback→补 receipt；外部效果次数仍为 1 | `test_job_safety.py`；子进程退出/独立持久 effect sink 故障注入 | LOCAL_PARTIAL；SIGKILL/进程崩溃不能证明磁盘缓存断电持久性，物理/虚拟机硬掉电需现场验证 |
+| AT-23 | intent/lease 无法持久化时不得开始 effect；effect 后 receipt 无法提交则停止新 effect 并恢复对账；磁盘满/WAL/receipt unavailable 不冒充完成 | `test_job_safety.py`；SQLite/receipt 写失败注入及持久停止边界 | LOCAL_PARTIAL；实际 ENOSPC、WAL checkpoint、目录权限/介质损坏需隔离卷或现场故障试验 |
+
+## 每次验收必须保存的记录
+
+每条记录至少包含：AT 编号、完整命令、开始/结束时间、执行环境、源码/构建/配置身份、Grant/Task/effect/job/Release/deployment/acceptance 关联（适用时）、注入点、实际 observation、receipt 引用、退出码、明确结论和剩余缺口。密钥/token 只保存 CredentialReference，不能复制到报告。
+
+`UNKNOWN`、`RECONCILIATION_REQUIRED`、预算耗尽导致的有界停止都可能是正确故障处理结果；它们不是业务成功。只有可信且当前的业务 acceptance，准确绑定 deployment+release+artifact，才能关闭相应发布验收。
+
+## M0–M5 的放行顺序
+
+| 实施包 | 放行条件 | 不可用来代替放行的证据 |
+| --- | --- | --- |
+| M0 Truth & Identity | 静态 Contract、动态 target、observation、provenance 分离；Resolver 与 CredentialReference 对应真实目标；UNKNOWN fail-closed | 目录存在、进程健康、main 与 runtime 碰巧相同 |
+| M1 Authorization & Effect Safety | Grant→短期证明→Principal→实际 lease/fencing；意图先持久化；未知结果精确对账；AT-22/23 本地故障通过 | 仅延长 TTL、发送端自称 fenced、effect 成功但未写 receipt |
+| M2 Real Autonomous Loop | 至少一条真实非发布 Action→Task→常驻 Worker→已注册 operation→receipt→result；tenant/subject 在服务端派生 | 仅 scheduler 单元测试、伪造 worker 或直接函数调用绕过 admission |
+| M3 Release Closure | 同一 Grant 完成真实 patch 至 production business acceptance，至少一次 ambiguous publication/worker crash 自动恢复 | 本地 Release 状态机、模拟 adapter、部署命令返回 0 |
+| M4 Surface Reduction | 每类事实 active write authority=1；旧入口停止接收新任务；历史任务可追溯；恢复演练通过 | 新模块存在但旧 writers 仍在写，或把全系统静态函数数当活跃写者数 |
+| M5 Optimization | 签名 Envelope 限定范围；真实效果和质量底线可核验；只经受治理任务晋升并能回退 | optimizer 自报改善、直接改 policy DB、放宽验收阈值 |

docs/implementation-baseline-1.1/ACCEPTANCE_RESULTS.md

@@ -0,0 +1,20 @@
+# 交付统一验收结果
+
+本次验收在新建虚拟环境中，仅使用包内锁定离线 wheel 安装依赖。没有连接生产系统。
+
+| 范围 | 实际结果 |
+| --- | --- |
+| 新增 Baseline 1.1 | 165 passed；0 skipped |
+| 全量源码回归 | 1212 passed；154 subtests passed；3 skipped |
+| 全量退出码 | 0 |
+| Python | 3.12.13 |
+| 平台 | Linux-6.18.35-x86_64-with-glibc2.39 |
+| 验收完成时间（UTC） | 2026-09-07T19:07:27.816913+00:00 |
+
+JUnit tests=1369 包含子测试，不能再把这个数字与 1212 相加。3 项跳过分别是 live Gitea tag publication、opt-in live signer integration，以及离线验收主动隔离的 deployed signer 检查。它们保持现场未验收状态，没有改成通过。
+
+实际命令为完整包 `run_acceptance.py --profile all --output ...`，该工具在一次性源码副本中执行，显式向子进程传递源码 PYTHONPATH，使进程崩溃/重启测试不依赖编辑器环境，也避免历史测试的 runtime 输出污染发行目录。副本保留原始 runtime/agent-os 源码；只隔离生成输出，不删除历史实现。首次干净环境运行发现并修正了这个验收启动器的子进程导入问题；修正后完整重跑通过。
+
+完整日志、JUnit、依赖版本、开始/结束时间、命令、退出码和逐源码文件 SHA 在完整包 `acceptance/full/`；新增基线证据在 `acceptance/baseline/`。源码改动后应重新生成相应证据，不能沿用本结果放行。
+
+AT-22 的进程故障注入通过；真实主机硬掉电仍需现场演练。AT-23 的 intent/receipt 持久化失败与停止/恢复通过；真实介质 ENOSPC、WAL checkpoint、备份 RPO/RTO 仍需现场验收。生产发布、正式 Task API 接入和旧写权威清退不在本次执行范围。

docs/implementation-baseline-1.1/ARCHITECTURE_BASELINE_1_1.md

@@ -0,0 +1,107 @@
+# AIOS 最终架构修改建议：Implementation Baseline 1.1
+
+本基线吸收七项最终修订，作为后续编码、集成与验收的共同约束。目标是一台机器、一人维护、多个常驻自治 Worker：Owner 给出目标和真实业务边界，系统在既有授权内自动发现对象、领任务、执行、验证、恢复并产生后续优化任务。
+
+本文件依据本次明确要求、上传源码和可见交互/评审材料；相关材料反映的持续诉求是少反复授权、少人工补路径、可恢复、低维护成本和严格身份隔离。它不声称已逐条读取全部三个月历史聊天，也不将材料里的现场状态当作本次在线测量。
+
+## 1. 最高原则与冻结决策
+
+**AIOS 的自动化程度不得高于其可观测、可恢复和可归因程度。**
+
+不能精确识别对象、持久化 intent、证明当前授权或围栏旧执行者，就不开始副作用。结果未知时先对账；不能验证业务结果时不宣称完成；无法安全恢复时有界停止并给出最小决策材料。正常续期、已授权恢复、同一范围内重试不重新索要 Owner 业务审批。
+
+继续使用 SQLite、Git、systemd；不引入 Kubernetes、消息中间件、Backstage 或新 Secrets 平台。不打开 legacy global write，不增加万能 SSH/root，不把 GPT 对话包装成执行身份。Task、Job、Release 保持各自事实域，Action 只负责入口。自动优化使用与普通开发相同的授权、执行、验证和发布边界。
+
+“单一写权威”按事实及资源范围判定，不等于全系统共用一张状态表或一个 daemon。允许同一进程承载多个模块，但模块不能直接修改另一模块的权威表。
+
+## 2. 事实域及写权威
+
+| 事实域 | 唯一写入口 | 权威内容 | 其他模块的使用方式 |
+| --- | --- | --- | --- |
+| Authorization | `AuthorizationService` | 已验签 Grant、当前 generation、撤销、effect 预算预留 | 请求派生证明，在执行边界重新验证 |
+| Task | 既有正式 Task authority；隔离 profile 使用既有 `TaskPlaneStore` | 准入、任务状态、claim、Worker 登记、任务 outbox | 通过正式 API/适配器调用，不能另写 Task 状态 |
+| Job / Effect | 既有 `JobController` 与受治理 executor | intent、attempt、资源 lease/fence、receipt、reconciliation | 持久化请求后执行；由权威 receipt 解释结果 |
+| Release / DeploymentTarget | 正式 Release authority；候选实现为 `ReleaseLedger` | 发布 recipe/saga、动态目标、部署事实、验收收口 | CAS 更新目标；消费经可信 verifier 验证的 receipt |
+| Runtime Contract | 受版本治理的配置入口 | 组件结构、入口、能力、资源及凭证引用 | Resolver 解析；不保存动态 desired |
+| Runtime Observation | 对应组件的可信观测适配器 | 实际部署身份、时间、来源、健康事实 | 只作为带新鲜度和来源的证据，不反写目标 |
+| 关联图 | `LineageLedger` | 不可改绑的身份关系 | `goal-explain` 查询；不拥有 Task/Job 状态机 |
+| Optimization | `OptimizationController` | 提案、实验证据、停止或晋升申请 | 只能请求受治理 Task，不能写政策或部署库 |
+
+新增库是明确事实域的持久层，不是新的线上写权威自动生效。当前 CLI 只支持 `isolated-validation`，复用上传源码中的 TaskPlaneStore；连接真实 Task API 前必须证明其正式入口、身份与兼容性，不能因为本地新库可启动就切换线上 admission。
+
+## 3. 运行结构、期望目标和实际观测分离
+
+| 对象 | 回答的问题 | 关键身份 |
+| --- | --- | --- |
+| `RuntimeContract` | 组件是什么、正式入口和允许能力是什么 | component、environment、tenant scope、contract revision、引用 |
+| `EnvironmentDeploymentTarget` | 此部署资源现在应运行哪个 Release | 部署资源范围、release、artifact、target revision |
+| `RuntimeObservation` | 实际运行什么，证据多新 | component、deployment、actual artifact、observed time、source |
+| `ReleaseProvenance` | 制品从哪里产生 | artifact/source/builder 身份与构建证据 |
+
+drift 比较同一部署资源的 desired 与 observed。main HEAD、staging source、production Release 不同本身不是故障；缺目标、缺来源、观测过期或身份绑定不完整应为 UNKNOWN。用户报告的 `0136a… / 91f… / 998d…` 以及缺 `gitea_token` 的 UNKNOWN，只构成待核验输入，不作为本包生产运行结论。
+
+M0 只做薄合同和可信解析：回答操作哪个组件、入口、desired/observed、制品来源、凭证引用和证据新鲜度，不做大目录迁移。当前实现提供合同校验、动态目标评价和受信固定绑定；完整在线 Resolver/Doctor 仍需适配实际 authority 与服务清单。
+
+目标的唯一性固定为“tenant + component/deployment scope + environment”，subject 用于授权及审计。`ReleaseLedger` 必须按资源主键实施 CAS，不能让不同用户为同一物理组件建立互相冲突的 desired。主键迁移必须检测已有目标冲突，不能静默合并或用当前观测覆盖期望目标。
+
+## 4. 持续业务授权与短期执行权
+
+授权链固定为 `OwnerDelegationGrant → OperationalEpoch → TaskPrincipal`，执行时另行获得正式 `ClaimLease / Fencing`。Grant 保存目标/任务范围、tenant、subject、环境、操作能力、破坏性上限、预算、明确期限或 UNTIL_REVOKED，以及撤销代次。
+
+新增长期 schema `aios.owner-delegation-grant.v1` 和短期 `aios.operational-epoch.v1`；历史 `owner-delegation-epoch.v1/v2` 不改名、不改签名字节，也不重解释为长期 Grant。派生证明保存根授权 digest/generation；代码字段为 `root_grant_digest`、`root_grant_generation`，承担提议中 `parent_grant_digest` 的根绑定语义。Principal 另绑定其父 Epoch digest。
+
+签名采用显式受信公钥验证，调用者不能附一份 Mapping 或公钥就自称受信。每次实际副作用检查根授权当前状态、精确 scope、破坏性上限、预算及真实 lease。短期证明过期可在有效 Grant 内自动更新；撤销、到期、跨环境或越过破坏性上限不能靠续期绕过。租约来自 Task/Job 权威，Principal 不伪造 claim。
+
+当前实现提供持久 `max_effects` 预留：同一稳定 effect 不重复扣额，换 task ID 不重置同一 Grant generation 的限额。总模型费用、计算资源和整个 mission 的综合预算仍需真实计量接入；不能把 effect 计数声称为完整成本控制。
+
+## 5. 不可改绑的业务关联与执行恢复
+
+各对象共享 `mission_id`、授权身份和 tenant/subject，但不共享状态机：
+
+```mermaid
+flowchart TD
+  G["Mission / Grant"] --> T["Task 权威"]
+  T --> J["Effect / Job 权威"]
+  J --> R["Release 权威"]
+  R --> D["Deployment"]
+  D --> A["Business Acceptance"]
+  T -. 身份关系 .-> L["Lineage / goal-explain"]
+  J -. 身份关系 .-> L
+  A -. 验证结果 .-> L
+```
+
+每个新 operation Job 必须绑定一个真实 Task；effect/Job 不能换绑另一任务。计划中的 job_id 必须传到正式 Job adapter，并在权威确认后才能显示为已存在的 Job。产生 Release 的 effect 只能指向唯一 release 身份，Release 保存来源链；Acceptance 必须绑定 deployment、release、artifact。非发布诊断任务只生成真实存在的 Task/Job/receipt，不能为补齐图形虚构 Release。
+
+effect 的稳定身份先于执行产生，attempt 可以变化。正常路径为持久 intent、有效 claim/lease/fence、执行、精确 readback、receipt、业务结果；结果不确定或跨域投递失败时进入 reconciliation。没有 readback/reconcile 能力时明确停止，不退回 execute。已有 Task outbox 及持久阶段记录支持恢复，但跨事实域不声称存在一个 SQLite 分布式事务；消费必须幂等，断点必须保留，关联缺口由受控重放补齐。
+
+旧执行者的 fencing 必须由副作用接收端再次检查；只在 scheduler 端检查不能阻止延迟写。AT-22 覆盖外部成功而 receipt 未提交后的同 effect 对账；AT-23 要求 intent/lease 无法持久化时 effect 不开始，receipt 提交失败后阻止新 effect。进程崩溃测试和 SQLite 错误注入已作为本地入口；真实掉电、ENOSPC、WAL checkpoint 和介质故障仍须现场验证。
+
+## 6. Operation Registry 与无人值守 Worker
+
+`OperationDefinition` 声明版本、输入 schema、所需能力、可信 handler 引用、期限、effect class，以及独立的 retry/readback/reconcile/rollback/owner-boundary 策略。Registry 是受治理查表入口，不是动态 shell 或任意 Python 加载入口。
+
+| 主 effect class | 未知结果的处理原则 |
+| --- | --- |
+| READ_ONLY | 可在预算内重新观察；诊断执行成功不代表对象健康 |
+| IDEMPOTENT | 仅在幂等键、权限、围栏和重试策略仍有效时重试 |
+| CONDITIONAL | 重新读 revision，保留 expected revision/CAS，不能删掉条件重试 |
+| RECONCILABLE | 先按稳定 effect 精确 readback，再决定补 receipt 或后续动作 |
+| IRREVERSIBLE | 不盲重试；遵守显式 Owner 边界和恢复能力 |
+
+这些属性会重叠，因此 class 负责主分派，幂等性、可观察性和可逆性另作约束。service-restart 不能仅凭 `active` 宣称本次重启已发生，需调用实例/事件等精确关联；当前 validation 内置仅为固定参数 `service-status`。旧 COMMIT_FILE adapter 缺乏 intent 可定位的未引用 commit readback 时明确停止，不为打通演示而制造成功。
+
+Worker 登记包含身份、capabilities、tenant/subject scope、priority、fallback_executor、heartbeat 和并发限制。正常选择 eligible Worker；从 `ready_at` 起 600 秒后扩大 fallback eligibility，仍使用同一 CAS/lease/fencing。blocked 时间不冒充 ready 时间，现存有效 claim 不被强抢。“主 Agent”只是部署策略；聊天 GPT 不拥有 Worker 的常驻进程身份。
+
+## 7. Tenant-first 与优化边界
+
+核心记录从第一天携带 tenant、subject、scope，身份从受信服务端认证上下文取得。查询、取消、执行、关联以及制品/cache/工作目录/credential 都必须在各自边界验证；不能只在 UI 隐藏对象。首版不做租户 UI、billing、独立租户管理服务或复杂公平调度。当前独立 UID 模板与 API 隔离不是所有未来 artifact/cache 实现已验收的证明。
+
+签名 `OptimizationEnvelope` 限定参数、组件、非生产环境、变更量、计算预算、质量下限、回退要求和晋升条件。初期仅开放有限 retry/backoff、worker routing、evidence reuse、timeout、poll interval、通知去重和非强制测试选择。授权政策、信任根、租户隔离、验收阈值、破坏性能力、Grant 语义和生产迁移规则禁止修改。
+
+优化流程固定为观察、提案、受治理 Task、实验、验证、晋升申请；优化器不能直接修改 policy DB 或运行配置。质量评价区分越高越好/越低越好，无改善或低于门槛就停止。当前模块已实现这些约束和持久提案，真实实验执行器、费用来源、运行参数晋升与回退仍需通过同一治理链接线。
+
+## 8. 交付状态和实施顺序
+
+本包包含实际代码、负面测试、可运行的 loopback 非发布闭环、安全源码 stage/rollback 和 AT-01～AT-23 标准。M0/M1 的本地模块与 M2 隔离纵向闭环已交付；M3 的关联/目标/saga/验签是候选基础，未宣称真实生产发布通过；M4 的旧写者排空和生产 imports 清理未执行；M5 是有界提案实现，未自动优化线上系统。
+
+上线顺序为 M0 Truth & Identity、M1 Authorization & Effect Safety、M2 Real Autonomous Loop、M3 Release Closure、M4 Surface Reduction、M5 Optimization。每阶段以完整输入、实际 adapter 与退出标准放行，详见 `M0_M5_IMPLEMENTATION_RUNBOOK.md`。不使用“架构方案正确”替代接收端围栏、正式权威绑定、可信业务验收或备份恢复证据。

docs/implementation-baseline-1.1/AUTHORIZATION_REPORT.md

@@ -0,0 +1,210 @@
+# Baseline 1.1 signed authorization chain
+
+## Result
+
+`aios_baseline.authorization` implements a new authorization chain without
+changing the frozen historical owner-delegation wire formats:
+
+1. an Owner signs `aios.owner-delegation-grant.v1` with a supplied Ed25519 key;
+2. the local authorization service verifies and durably registers that grant;
+3. the service issues a short, signed `aios.operational-epoch.v1`;
+4. the service embeds that epoch in a signed `aios.task-principal.v1` and binds
+   the principal to it by digest;
+5. every authorization and effect reservation rereads SQLite and checks the
+   current root grant digest, generation, revocation state, expiry, signature,
+   tenant, subject and narrowed scope.
+
+The TaskPrincipal is a short authorization credential. It does not manufacture
+a Task claim or ClaimLease. The task authority and executor must independently
+enforce their authoritative claim lease, heartbeat and fencing token.
+
+## Public API
+
+```python
+AuthorizationService(
+    db_path,
+    owner_public_keys,          # key_id -> Ed25519PublicKey
+    machine_private_key,
+    machine_key_id,
+    *,
+    owner_key_scopes,          # key_id -> exact tenant_ids/subject_ids lists
+    clock=time.time,
+    control_context_verifier=None,
+    trusted_machine_public_keys=None,
+)
+
+sign_owner_delegation_grant(
+    owner_private_key,
+    owner_key_id,
+    *,
+    grant_id,
+    generation,
+    tenant_id,
+    subject_id,
+    mission_ids,
+    task_ids,
+    operations,
+    component_ids,
+    environments,
+    issued_at,
+    validity_mode,             # required: UNTIL_REVOKED or EXPIRES_AT
+    expires_at=None,
+    max_effects=None,
+    destructive_ceiling="NONE",
+)
+
+service.register_grant(signed_envelope) -> dict
+service.issue_principal(grant_id, *, exact_scope, ttl_seconds) -> dict
+service.authorize(principal, *, exact_scope) -> dict
+service.assert_effect_bounds(principal, operation_definition, *, exact_scope) -> dict
+service.reserve_effect(grant_id, effect_id, principal, *, exact_scope) -> bool
+service.revoke_grant(grant_id, *, control_context) -> int
+```
+
+`register_grant` and `authorize` return JSON-safe copies of the signed grant.
+`reserve_effect` returns `True` for the first reservation and `False` for an
+idempotent retry of the same stable effect ID. It reauthorizes and reserves in
+one `BEGIN IMMEDIATE` transaction. A configured `max_effects` applies per grant
+generation. An omitted `max_effects` leaves mission-level budget accounting to
+the calling service.
+
+The grant signing helper requires an explicit validity mode. It never creates a
+key and does not accept an unsigned grant payload as authority. `EXPIRES_AT`
+requires an integer expiry after issuance. `UNTIL_REVOKED` forbids an expiry.
+The signed `destructive_ceiling` defaults to `NONE` and is strictly one of
+`NONE`, `REVERSIBLE`, or `IRREVERSIBLE`. `assert_effect_bounds` accepts only a
+trusted `OperationDefinition`: `NONE` permits only `READ_ONLY`; `REVERSIBLE`
+also requires rollback, required state/exact readback, and reconciliation; and
+`IRREVERSIBLE` is an explicit maximum. A ceiling never replaces Job
+authorization, durable intent, claim lease, receiver fencing, readback, or
+reconciliation.
+
+Owner public-key trust is separately constrained by the required constructor
+argument `owner_key_scopes`. Its key set must exactly equal `owner_public_keys`;
+each key has exact nonempty `tenant_ids` and `subject_ids` lists. A wildcard is
+effective only when the configuration explicitly supplies the sole list item
+`"*"`. Registration and every later durable grant load check the signing key's
+scope, so placing keys for several tenants in one process does not let one
+tenant's Owner key sign another tenant's grant.
+
+## Exact wire objects
+
+Every signed object uses an exact `signing` object:
+
+```json
+{"algorithm":"Ed25519","key_id":"...","signature":"base64-64-byte-signature"}
+```
+
+The signature covers the schema, every payload field, the signing algorithm and
+key ID, and, for a TaskPrincipal, the complete nested signed epoch. The message
+starts with the `AIOS-AUTHORIZATION` domain, a NUL separator, the schema, and a
+second NUL separator before canonical JSON.
+
+An OwnerDelegationGrant has exact outer keys `schema`, `payload`, `signing`.
+Its payload has:
+
+```json
+{
+  "grant_id": "...",
+  "generation": 1,
+  "tenant_id": "...",
+  "subject_id": "...",
+  "scope": {
+    "mission_ids": ["..."],
+    "task_ids": ["..."],
+    "operations": ["..."],
+    "component_ids": ["..."],
+    "environments": ["..."]
+  },
+  "issued_at": 2000000000,
+  "validity": {"mode": "UNTIL_REVOKED"},
+  "limits": {},
+  "destructive_ceiling": "NONE"
+}
+```
+
+The alternative validity is
+`{"mode":"EXPIRES_AT","expires_at":<integer>}`. `limits` is either empty or
+contains one positive integer `max_effects`. Each scope list is nonempty and
+may contain explicit values or the sole wildcard `"*"`.
+
+An OperationalEpoch has exact outer keys `schema`, `payload`, `signing`. Its
+payload has `epoch_id`, `root_grant_id`, `root_grant_digest`,
+`root_grant_generation`, all seven exact binding fields (`tenant_id`,
+`subject_id`, `mission_id`, `task_id`, `operation`, `component_id`,
+`environment`), `issued_at` and `expires_at`.
+
+A TaskPrincipal has exact outer keys `schema`, `payload`, `operational_epoch`,
+`signing`. Its payload has `credential_id`, `nonce`, `parent_epoch_digest`, the
+same three root fields, the same seven binding fields, `issued_at` and
+`expires_at`. Epoch and principal validity is capped at 300 seconds and at an
+explicit root-grant expiry.
+
+## Durable state and revocation
+
+SQLite stores the canonical signed grant, its digest, its current durable
+generation and revocation flag. Revocation increments the durable generation in
+an immediate transaction, records a revocation row, and leaves old proofs
+invalid even when their short expiry has not elapsed. Reopening the service on
+the same database retains that decision. The same signed generation cannot
+clear revocation. Reactivation requires a newly Owner-signed generation greater
+than the durable revocation generation.
+
+`revoke_grant` fails closed unless `control_context_verifier` returns the exact
+boolean `True` for the caller's authenticated local control-service context.
+The authorization module does not authenticate network requests; the hosting
+service must construct that trusted context from its local authenticated API
+boundary. Authorization never relies on the verifier or a cache for freshness;
+it reads current durable state on every use.
+
+The active machine signing key is always trusted for newly issued objects.
+`trusted_machine_public_keys` can retain previous public keys for the remainder
+of already-issued proof lifetimes during rotation. Owner trust keys and machine
+trust keys remain separate.
+
+## Verification
+
+The initial failure-first run stopped during collection because
+`aios_baseline.authorization` did not yet exist. After implementation, a focused
+run found and fixed strict nonce validation and clarified that substituting the
+nested epoch invalidates the outer signature before the parent-digest check.
+The final focused commands were:
+
+```console
+PYTHONDONTWRITEBYTECODE=1 \
+PYTHONPATH=/workspace/scratch/63950cb15f5c/test_deps:$PWD/active-runtime/app \
+python3 -m pytest -q \
+  tests/baseline_v1_1/test_authorization.py \
+  tests/baseline_v1_1/test_claim_heartbeat.py
+```
+
+Result before the ceiling extension: `25 passed in 0.80s`. The post-extension
+focused run reported `28 passed in 0.35s`. After the Owner trust-root and claim
+heartbeat hardening, the current focused result is `35 passed`.
+
+The tests cover exact-scope success, all three signature layers, unknown Owner
+keys, unsigned payload refusal, fake Mapping parents, nested-parent
+substitution, every cross-scope dimension, grant narrowing, live and persisted
+revocation, proof renewal without Owner reapproval, explicit root expiry,
+Owner-signed generation reactivation, strict types and signature encoding,
+explicit helper validity, durable idempotent effect budgets, unbounded budget
+delegation, machine-key rotation, refusal of untrusted retired keys, NaN and
+empty-identity rejection, and the revocation-generation boundary around durable
+effect budgets. Revocation cannot reset a budget or revive the immutable old
+signed generation; only a newer Owner-signed generation can reactivate it.
+The extension tests also cover signed ceiling tampering, conservative default
+denial, rollback/readback requirements, and explicit irreversible authority.
+They now also cover exact Owner-key scope configuration, cross-tenant and
+cross-subject Owner-key refusal, explicitly configured global trust, cancellation
+before heartbeat, and the exact lease-expiry boundary.
+
+## Security review disposition
+
+| Severity | Status | Boundary | Disposition |
+| --- | --- | --- | --- |
+| High | Closed | Owner trust roots | Each trusted Owner key now requires explicit tenant and subject scope; no implicit cross-tenant authority remains. |
+| High | Closed | Revocation and effect budget | Every use rereads root generation and revocation state in SQLite. Revocation cannot revive or reset the old generation's reservations. |
+| High | Closed | Receipt and recovery integration | Generic Jobs require the exact transition graph and trusted, fully bound signed receipts; Task recovery preserves terminal Owner cancellation. |
+| Medium | Closed | Claim heartbeat | Heartbeat now checks terminal Task state and performs the live-lease update with `status='ACTIVE'` and `lease_until>now` under one immediate transaction. |
+| High | Pending M3 | Mutating receiver fence | The supplied handler remains read-only. Any future mutating receiver must atomically enforce the authoritative fence at the sink and recheck authorization, claim and deadline around receiver execution. |
+| Medium | Accepted for initial single-host profile | Admission scope | The durable unknown-effect admission latch intentionally stops new effects across the shared Job store. This conservative availability policy is documented in SERVICE_LOOP_REPORT.md; later tenant/resource partitioning must retain a global storage-integrity gate. |

docs/implementation-baseline-1.1/CONTRACTS_REPORT.md

@@ -0,0 +1,220 @@
+# Truth and Operation Contracts Report
+
+## Scope
+
+Implemented Task 3 and the adjacent C01 trusted-snapshot correction without live calls or production access.
+
+Files changed for this work:
+
+- `active-runtime/app/aios_baseline/runtime_contract.py`
+- `active-runtime/app/aios_baseline/operations.py`
+- `active-runtime/app/reconciliation_controller.py`
+- `active-runtime/app/aios_chatgpt_bridge_v2_server.py`
+- `deploy/systemd/aios-chatgpt-bridge-v2-staging.service`
+- `tests/baseline_v1_1/test_contracts.py`
+- `tests/test_completed_replay_reconciliation_v7.py`
+- `tests/test_isolated_writer_exact_path_policy.py`
+- `tests/test_r7_atomic_recovery_and_bridge_sandbox.py`
+- `docs/implementation-baseline-1.1/CONTRACTS_REPORT.md`
+
+No package `__init__.py` was changed by Task 3. No arbitrary command executor, production trust root, live call, deployment, or Git commit was created.
+
+## Public functions and payload schemas
+
+### `validate_contract(document: Mapping[str, Any]) -> dict[str, Any]`
+
+Required stable contract fields:
+
+```json
+{
+  "contract_schema": "aios.runtime-contract.v1",
+  "contract_revision": 1,
+  "component_id": "sample",
+  "environment": "staging",
+  "tenant_scope": "tenant-a",
+  "lifecycle": "active",
+  "entrypoints": {
+    "host": {
+      "component_id": "sample",
+      "environment": "staging",
+      "resolver_ref": "service://sample/status"
+    }
+  },
+  "bindings": {},
+  "resource_refs": {},
+  "credential_refs": {},
+  "operations": ["service-status"]
+}
+```
+
+`lifecycle` is one of `active`, `candidate`, `legacy`, or `example`. Reference groups are mappings and may be empty. A reference value may be a symbolic string, which is normalized with the contract's component and environment, or an object containing matching `component_id` and `environment` plus exactly one of `resolver_ref`, `path_ref`, or `credential_ref`. If a reference object supplies `tenant_scope`, it must match the contract.
+
+`path_ref` must be relative and cannot contain traversal, backslashes, or NUL. Credential references accept `credential://`, `secret://`, and `systemd-credential:` references; raw `/run/credentials/...` paths and inline secret fields are rejected. The keys `desired`, `desired_commit`, `desired_release`, `desired_target`, and `desired_targets` are rejected at every depth because release targets are separate objects.
+
+### `evaluate_deployment(contract, target, observation, provenance, now) -> dict[str, Any]`
+
+Target payload:
+
+```json
+{
+  "component_id": "sample",
+  "environment": "staging",
+  "release_id": "release-17",
+  "deployment_id": "deployment-22",
+  "artifact_digest": "sha256:<64 lowercase or uppercase hex characters>",
+  "revision": 4
+}
+```
+
+Observation payload:
+
+```json
+{
+  "observed_at": "2026-09-07T11:59:30Z",
+  "max_age_seconds": 60,
+  "source": "systemd-readback.v1",
+  "actual_artifact_digest": "sha256:<64 hex characters>",
+  "healthy": true,
+  "component_id": "sample",
+  "environment": "staging",
+  "deployment_id": "deployment-22",
+  "revision": 4
+}
+```
+
+`max_age` is accepted as an alias for `max_age_seconds`; `actual_artifact` and `artifact_digest` are accepted aliases for `actual_artifact_digest`. The final four binding fields are optional, but when present they must be well typed and match the target. `healthy` is nullable at the source boundary, but null is evaluated as `UNKNOWN`, never healthy.
+
+Provenance payload:
+
+```json
+{
+  "artifact_digest": "sha256:<64 hex characters>",
+  "source_digest": "sha256:<64 hex characters>",
+  "builder_digest": "sha256:<64 hex characters>"
+}
+```
+
+`artifact_hash`, `source_hash`, and `builder_hash` are accepted aliases. `now` accepts a timezone-aware `datetime` or ISO-8601 string and is injected by tests. Missing, malformed, future, stale, or nullable evidence returns `status/state/verification = UNKNOWN`. A complete incompatible target returns `DRIFT`. Matching contract, target, observation, and provenance returns `status = VERIFIED`, `state = CONVERGED`, and `converged = true`. A repository's current HEAD is deliberately ignored.
+
+### `OperationDefinition.from_dict(data)`
+
+Operation definition payload:
+
+```json
+{
+  "operation_id": "service-status",
+  "version": 1,
+  "effect_class": "READ_ONLY",
+  "handler_ref": "host.service_status",
+  "input_schema": "aios.operation.service-status.input.v1",
+  "required_permissions": ["service-status"],
+  "timeout_seconds": 10,
+  "readback": {"mode": "NONE", "required": false},
+  "retry": {"mode": "SAFE", "max_attempts": 2},
+  "reconcile": {"mode": "NONE"},
+  "rollback": {"mode": "NONE"},
+  "owner_boundary": {"mode": "WITHIN_GRANT"}
+}
+```
+
+`permissions` is accepted as an alias for `required_permissions`. Primary effect classes are `READ_ONLY`, `IDEMPOTENT`, `CONDITIONAL`, `RECONCILABLE`, and `IRREVERSIBLE`. Retry modes are `NEVER`, `SAFE`, `AFTER_READBACK`, and `RECONCILE_FIRST`. Readback, retry, reconcile, rollback, and owner-boundary data remain separate mappings rather than being inferred from the effect class. A service restart must declare required `EXACT` readback and reconciliation. Top-level `command`, `shell`, `argv`, `executable`, and `script` fields are rejected, and handler references cannot contain shell syntax.
+
+### Registry and operation helpers
+
+- `OperationRegistry(definitions).get(operation_id) -> OperationDefinition` performs lookup only and raises `KeyError` for an unregistered ID.
+- `OperationRegistry.definitions -> tuple[OperationDefinition, ...]` exposes immutable registration order.
+- `operation_timeout_action(definition, outcome="AMBIGUOUS", attempts=1) -> str` returns `RETRY`, `RECONCILE`, or `STOP`. It never retries an irreversible effect and requires reconciliation for an ambiguous mutating outcome when reconciliation/readback exists.
+- `verify_service_restart(before, after) -> dict` requires a changed instance identity and a later start timestamp. An active state without restart identity returns `UNKNOWN`.
+- `load_production_observation(path, now=None) -> dict` reads a bounded, regular, non-group/world-writable `production-observation.json` bundle with exact keys `contract`, `target`, `observation`, and `provenance`. It projects `ACTIVE` only after `evaluate_deployment` returns `VERIFIED`; otherwise it projects `UNKNOWN` without a baseline version or target OID.
+
+## Reconciliation and snapshot corrections
+
+`ReconciliationController.reconcile` now treats absent, null, wrong-type, or empty evidence as drift requiring reconciliation. This fixes the root cause where every missing pair compared as `None == None` and an empty mapping returned healthy.
+
+`GovernedRuntime.snapshot` no longer embeds `V2R1C7`, `c7adece1cc8beffe7c718d53c775898b45d6c7f8`, or `ACTIVE`. It reads `<state_root>/production-observation.json`; absent or unverified evidence retains the existing three-field production response shape with `deployment_state: UNKNOWN`.
+
+The staging unit now projects the existing encrypted credential ID directly for its own service:
+
+```ini
+LoadCredentialEncrypted=gitea-governance-executor-token:/etc/credstore.encrypted/gitea-governance-executor-token
+Environment=AIOS_GITEA_TOKEN_FILE=%d/gitea-governance-executor-token
+```
+
+The legacy bridge sandbox test now parses both directives and asserts that the projected credential name, encrypted-file basename, and consumer `%d` basename are identical. It also rejects any reference to the governance executor's runtime credential directory.
+
+## Failure-first and verification evidence
+
+Initial Task 3 collection before implementation:
+
+```text
+ERROR tests/baseline_v1_1/test_contracts.py
+ModuleNotFoundError: No module named 'aios_baseline'
+1 error in 0.15s
+```
+
+The empty optional groups and permissions-alias tests failed before their implementation:
+
+```text
+FAILED test_structural_contract_allows_empty_optional_reference_groups
+FAILED test_read_only_definition_accepts_permissions_alias_and_registry_lists_definitions
+2 failed, 39 passed in 0.20s
+```
+
+The trusted snapshot tests failed before C01 implementation:
+
+```text
+ImportError: cannot import name 'load_production_observation'
+1 error in 0.28s
+```
+
+Focused Task 3, C01, and legacy reconciliation command:
+
+```text
+PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=/workspace/scratch/63950cb15f5c/test_deps:$PWD/active-runtime/app python3 -m pytest -q tests/baseline_v1_1/test_contracts.py tests/test_autonomy_v1_components.py
+....................................................................     [100%]
+68 passed in 0.30s
+```
+
+Existing Bridge/control-plane compatibility command:
+
+```text
+PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=/workspace/scratch/63950cb15f5c/test_deps:$PWD/active-runtime/app python3 -m pytest -q tests/test_action_contract_regressions.py tests/test_bridge_v2_governed_http_bootstrap.py tests/test_control_plane_convergence_contract.py tests/test_canonical_task_projection_recovery.py
+............................................                             [100%]
+44 passed in 0.99s
+```
+
+The standalone completed-replay HTTP test originally returned `423` with body error `TASK_PRINCIPAL_WRITES_DISABLED`. Its mutating-operation adapter exposed no `getRuntimeStatus`, and the fixture provided neither the required TaskPrincipal verifier nor an authorization header. The fixture now supplies the exact ready gate facts and authenticated verifier; no production gate was relaxed:
+
+```text
+PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=/workspace/scratch/63950cb15f5c/test_deps:$PWD/active-runtime/app python3 -m pytest -q tests/test_completed_replay_reconciliation_v7.py
+...........                                                              [100%]
+11 passed in 0.60s
+```
+
+Fresh final scoped verification across Task 3, C01, Bridge/control-plane compatibility, completed replay, and isolated-writer fixtures:
+
+```text
+PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=/workspace/scratch/63950cb15f5c/test_deps:$PWD/active-runtime/app python3 -m pytest -q tests/baseline_v1_1/test_contracts.py tests/test_autonomy_v1_components.py tests/test_action_contract_regressions.py tests/test_bridge_v2_governed_http_bootstrap.py tests/test_control_plane_convergence_contract.py tests/test_canonical_task_projection_recovery.py tests/test_completed_replay_reconciliation_v7.py tests/test_isolated_writer_exact_path_policy.py tests/test_isolated_writer_policy.py
+........................................................................ [ 47%]
+................................................................................ [100%]
+152 passed, 64 subtests passed in 1.87s
+```
+
+`git diff --check` completed with no output for all files in this report.
+
+The isolated-writer legacy subset initially had two pristine-baseline negative-fixture failures. The audience and branch tests did not establish the required `gitops` group lookup, so the unchanged production guard correctly stopped at `isolated_writer_path_policy_group_rejected` before either intended assertion. The fixtures now supply only that valid prerequisite; production guard order and strictness are unchanged:
+
+```text
+PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=/workspace/scratch/63950cb15f5c/test_deps:$PWD/active-runtime/app python3 -m pytest -q tests/test_isolated_writer_exact_path_policy.py tests/test_isolated_writer_policy.py
+........................ [ 82%]
+.....                                                    [100%]
+29 passed, 64 subtests passed in 0.40s
+```
+
+Focused legacy systemd assertion:
+
+```text
+PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=/workspace/scratch/63950cb15f5c/test_deps:$PWD/active-runtime/app python3 -m pytest -q tests/test_r7_atomic_recovery_and_bridge_sandbox.py
+..                                                                       [100%]
+2 passed in 0.04s
+```

docs/implementation-baseline-1.1/IMPLEMENTATION_PLAN.md

@@ -0,0 +1,49 @@
+# AIOS Implementation Baseline 1.1 Implementation Plan
+
+> For agentic workers: use the approved user architecture and the task interfaces below. Implement continuously, with failure-first tests and scoped review. No production access is part of this package-build task.
+
+Goal: deliver source changes, runnable integration/acceptance, safe migration/package tools and precise deployment instructions for the seven final architecture revisions.
+Architecture: extend the existing Task/Job/Release authorities through explicit adapters. RuntimeContract describes stable structure; deployment targets are dynamic Release-owned records. Historical authorization wire formats remain frozen. New Grant and OperationalEpoch are separate objects. Generic operation execution persists intent before effects and uses receiver fencing and reconciliation.
+Tech stack: Python 3.11+, SQLite/Git/systemd, existing cryptography and pytest; no new online services or middleware.
+Spec: ARCHITECTURE_BASELINE_1_1.md (generated from the approved baseline and current user's seven revisions).
+
+Global constraints:
+- The imported ZIP SHA256 is fd28f8f065873c5600f17de0a536cae6f4bc18567687fd3f178d67ad8c1f931a; local snapshot commit is an import identity, not remote main.
+- Legacy global writes remain false. No arbitrary remote shell, generated production trust roots, direct production policy DB writes or implicit authority cutover.
+- Tenant and subject come from authenticated service context. All durable identity links are tenant-scoped. Existing TaskPlaneStore remains the task authority for the explicit standalone profile; existing official Task API integrations use adapters and activation evidence, not silent replacement.
+- Every code task: write behavioral tests, observe expected failure, implement, run covering regression, record output. Package inspection and deployment preflight are read-only by default.
+
+## Task 1: Existing Job reliability
+Files: aios_gitops_job_controller.py, aios_gitops_job_executor.py, tests/baseline_v1_1/test_job_safety.py and affected existing fixtures.
+Deliver: finite leases/state checks, recoverable reconcile claims/epoch CAS, universal dry-run, complete operation receipt/readback. Unknown effects must not blindly repeat; DB failure latches stop further effects until explicit successful reconciliation. Preserve old campaign authorization limits.
+Tests: dry-run mutator never called; expired and terminal lease refused; observer crash/reordering; duplicate execution; intent commit failure; external success followed by receipt storage failure.
+
+## Task 2: Signed authorization chain
+Files: aios_baseline/authorization.py; tests/baseline_v1_1/test_authorization.py.
+Deliver: signed owner-delegation-grant.v1, new operational-epoch.v1 and task-principal.v1 with root grant digest/generation, persistent grant/revocation state, expiry/UNTIL_REVOKED, narrowing, Ed25519 verified trusted keys. Preserve old v1/v2 modules.
+Tests: signature tampering, fake parent Mapping, cross-tenant/subject/task/scope, revoked generation, expired proof auto-refresh under active grant, restart persistence.
+
+## Task 3: Truth and operation contracts
+Files: aios_baseline/runtime_contract.py, aios_baseline/operations.py, reconciliation_controller.py; tests/baseline_v1_1/test_contracts.py.
+Public interfaces: validate_contract(document)->dict; evaluate_deployment(contract,target,observation,provenance,now)->dict; OperationDefinition.from_dict(data); OperationRegistry(definitions).get(operation_id).
+Deliver: structural contract rejects dynamic desired; dynamic target/observation/provenance validation and UNKNOWN, effect class plus orthogonal readback/retry/reversibility policy. No arbitrary command execution in registry.
+
+## Task 4: Task loop and identity linkage
+Files: aios_baseline/lineage.py, service.py, worker.py, http_api.py, host.py; existing task_plane through adapters; tests/baseline_v1_1/test_loop.py.
+Deliver: use TaskPlaneStore for tasks/claims; authenticate tenant-scoped thin Action; persistent correlation graph; registry-based fallback eligibility at ready_at+600; bounded subprocess host-status operation; cancellation and evidence; no special main-agent branch. Worker heartbeat/transport are real.
+Tests: authenticated HTTP submit->claim->real local diagnostic->receipt->result; tenant denial; duplicate submission; restart and fallback; lineage referential constraints.
+
+## Task 5: Release and optimization
+Files: aios_baseline/release.py, optimization.py; tests/baseline_v1_1/test_release_optimization.py.
+Deliver: Release-owned targets, deployment/acceptance IDs and source lineage, recipe/receipt adapters to governed operations; bounded OptimizationEnvelope, proposal/task-only execution, objective quality floors. No direct policy mutation.
+Tests: acceptance wrong deployment rejected; restartable saga; stale target CAS; forbidden optimization; quality regression stops promotion.
+
+## Task 6: Packaging, activation and acceptance
+Files: scripts/baseline_v1_1/*, deploy/baseline_v1_1/*, docs/implementation-baseline-1.1/*; tests/baseline_v1_1/test_package_tools.py.
+Deliver: manifest with before/after hashes, patch/full source packages, conflict-safe stage/apply/rollback, authority and credential preflight, sanitized config examples, Linux systemd profile, full AT-01..23 matrix with actual statuses. AT-22 uses subprocess crash plus durable separate effect sink; physical power failure is marked online-required. AT-23 exercises SQLite and receipt failures with fail-closed admission.
+Tests: clean staging, wrong baseline/tamper refusal, repeated apply, rollback conflict refusal, credential path validation; run integrated regression and public-interface suites.
+
+Rulings:
+- Effect class is primary dispatch metadata, with independent retry/readback/rollback properties, since categories overlap.
+- Historical owner-delegation-epoch.v2 is not relabeled or reinterpreted. New proof schema refers to the new Grant; migration verifies original bytes.
+- Live activation requires observed official authority bindings and valid installed signing identities. Packaging does not claim production activation.

docs/implementation-baseline-1.1/INSTALLATION.md

@@ -0,0 +1,146 @@
+# AIOS Implementation Baseline 1.1：安装、验证与回滚
+
+本包交付架构修订、可执行代码、隔离验证闭环和源码变更工具。默认运行 `isolated-validation` profile；线上 Task/Job/Release 的实际写权威绑定、真实发布和生产业务验收仍须通过现场门禁。源码包安装完成不能作为生产发布完成的证据。
+
+## 1. 先确认包身份和运行前提
+
+提供的源码来自用户上传 ZIP，原始 ZIP SHA-256 为 `fd28f8f065873c5600f17de0a536cae6f4bc18567687fd3f178d67ad8c1f931a`。本地导入基线为 `f5d015249604ce5bdacfd707608f83e8a3875f60`；这是离线快照身份，不是远端 main 或当前 runtime 的证明。
+
+最终包的顶层路径约定：
+
+| 路径 | 用途 |
+| --- | --- |
+| `source/aios/` | 完整修改后源码；首先阅读根 README 和本文件 |
+| `source-baseline.git.bundle` | 可离线恢复原始导入 commit 的 Git 对象 |
+| `source-changes.zip` | 每文件 before/after hash、旧/新内容及 manifest |
+| 根目录校验清单与验收结果 | 本次实际生成的包身份及本地测试证据；以根 README 中的实际文件名为准 |
+
+需要 Python 3.11+、Git，以及源码依赖清单中固定版本的 `cryptography`。运行测试需要 `pytest`。真实服务诊断需要 Linux/systemd 以及可读取状态的现存 `.service`。源码包工具只依赖 Python 标准库和 Git。使用包内依赖说明准备独立虚拟环境，不自动升级或覆盖正在运行的 AIOS Python 环境。
+
+SHA-256 校验只证明字节完整性；它不证明 Owner 业务授权。使用可信的交付来源，并保留实际下载包的校验值。不要将测试生成的密钥、token 或 Grant 移入生产信任域。
+
+## 2. 源码隔离部署：先 dry-run，再 stage
+
+以下命令从已解压完整包的顶层执行。路径变量只用于这次安装；所有目标目录必须全新，父目录须存在。
+
+```bash
+export AIOS_PACKAGE_ROOT="$PWD"
+export AIOS_BASE_REPO="$AIOS_PACKAGE_ROOT/clean-baseline"
+export AIOS_STAGE="$AIOS_PACKAGE_ROOT/staged-baseline-1.1"
+
+python3 "$AIOS_PACKAGE_ROOT/source/aios/tools/baseline_v1_1/bundle.py" verify \
+  "$AIOS_PACKAGE_ROOT/source-changes.zip"
+
+git init "$AIOS_BASE_REPO"
+git -C "$AIOS_BASE_REPO" fetch "$AIOS_PACKAGE_ROOT/source-baseline.git.bundle" HEAD
+git -C "$AIOS_BASE_REPO" checkout --detach FETCH_HEAD
+
+python3 "$AIOS_PACKAGE_ROOT/source/aios/tools/baseline_v1_1/bundle.py" stage \
+  "$AIOS_PACKAGE_ROOT/source-changes.zip" \
+  --source "$AIOS_BASE_REPO" --destination "$AIOS_STAGE" --dry-run
+
+python3 "$AIOS_PACKAGE_ROOT/source/aios/tools/baseline_v1_1/bundle.py" stage \
+  "$AIOS_PACKAGE_ROOT/source-changes.zip" \
+  --source "$AIOS_BASE_REPO" --destination "$AIOS_STAGE"
+```
+
+`stage` 不修改 `--source`。它校验源仓库 clean、HEAD、所有基线受跟踪文件的 hash/mode，再创建独立副本；应用 manifest 后保留基线 HEAD 和可审查的工作区差异。它拒绝既有目标、未知目标覆盖、符号链接、路径穿越、ZIP 未声明成员、缺失文件、错基线及字节篡改。不会启动 systemd、写线上权威库、启用 legacy global write 或运行仓库脚本。
+
+已有真实仓库与导入基线不一致时，`stage` 拒绝是预期行为。不要使用 `--force`、重写线上 HEAD 或伪造 before hash。将包内变化在真实仓库的独立 worktree 中审查/移植，重新建立该仓库的源码与验收身份，再走原有变更治理链。本工具没有绕过开关。
+
+Git 忽略文件不属于基线内容，不会复制到候选目录。不要在源目录依赖未声明的 overlay、运行态数据库或私有凭证。工具当前以普通文件和可执行普通文件为交付对象，遇到符号链接、Git submodule、异常文件布局或超限包会安全拒绝。
+
+## 3. 执行本地验收
+
+在已准备依赖的独立 Python 环境中运行：
+
+```bash
+cd "$AIOS_STAGE"
+export PYTHONPATH="$AIOS_STAGE/active-runtime/app"
+export PYTHONDONTWRITEBYTECODE=1
+python3 -m pytest -q tests/baseline_v1_1
+```
+
+本地测试包含真实 SQLite、Ed25519 签名、临时 Git 仓库、HTTP transport 和受限子进程等行为测试；其中可控替身用于模拟远端系统和故障。测试通过不代表已连接用户主机、不代表主机断电与磁盘耗尽已现场复现，也不代表生产业务验收通过。具体 AT-01～AT-23 范围见 `ACCEPTANCE_MATRIX.md` 和本次实际测试结果。
+
+保存测试命令、Python/依赖版本、源码身份、配置摘要和退出码；不要把 token 或私钥放进验收报告。任何源代码或运行配置变化后，旧证据不能无条件用于放行新候选。
+
+## 4. 跑第一条真实非发布闭环
+
+选择当前 Linux 主机中一个已存在、允许当前用户只读查询的服务，并将下方 `YOUR_EXISTING_SERVICE.service` 替换成准确的 unit 名。此步骤只调用固定的 `systemctl show` 状态读取；不重启服务。
+
+```bash
+export AIOS_VALIDATION_DIR="$AIOS_PACKAGE_ROOT/validation-run"
+python3 -m aios_baseline.cli init-validation \
+  --directory "$AIOS_VALIDATION_DIR" \
+  --service-unit YOUR_EXISTING_SERVICE.service
+
+python3 -m aios_baseline.cli preflight --config "$AIOS_VALIDATION_DIR/server.json"
+python3 -m aios_baseline.cli grant-import \
+  --config "$AIOS_VALIDATION_DIR/server.json" --grant "$AIOS_VALIDATION_DIR/grant.json"
+```
+
+`init-validation` 仅为新建的本地验证实例生成测试身份和一个最多 20 个 effect、限定 `service-status/sample/staging` 的 Grant。它不会覆盖既有目录。实际部署使用已安装的信任身份和明确签署的业务授权，不复用这里生成的密钥。`preflight` 返回 `CONFIG_VALID` 仅表示配置检查通过，同时会明确 `online_authority=NOT_VERIFIED`、`production_activation=BLOCKED`。
+
+在终端 A 启动服务：
+
+```bash
+python3 -m aios_baseline.cli server --config "$AIOS_VALIDATION_DIR/server.json"
+```
+
+在已设置相同路径变量和 `PYTHONPATH` 的终端 B 提交目标并运行真实 Worker：
+
+```bash
+python3 -m aios_baseline.cli goal-submit \
+  --token-file "$AIOS_VALIDATION_DIR/user.token" \
+  --request "$AIOS_VALIDATION_DIR/goal.json" \
+  --idempotency-key first-service-diagnostic
+
+python3 -m aios_baseline.cli worker \
+  --config "$AIOS_VALIDATION_DIR/worker.json" --once
+
+python3 -m aios_baseline.cli goal-explain \
+  --token-file "$AIOS_VALIDATION_DIR/user.token" \
+  --mission-id validation-mission
+```
+
+关联链应包含 Task、effect/job 和经验证的诊断 receipt；这是非发布任务，不应虚构 Release/Deployment/Acceptance。进程完成“诊断”与被诊断服务 `healthy=true` 是两个不同事实。服务不健康时仍须返回真实 observation，不能将诊断执行成功冒充组件健康。
+
+常驻 Worker 使用相同命令去掉 `--once`。聊天中的 GPT 没有此 Worker 的常驻身份、heartbeat 或 transport，不是 fallback worker。将受信 Worker 配置的 `fallback_executor` 设为 true 后，调度按 readiness 时间扩大其 eligibility，仍走同一 CAS、lease 和 fencing。
+
+## 5. systemd 验证实例与现场门禁
+
+候选 unit 位于 `deploy/baseline-v1.1/`，均以 `.example` 结尾。API 与 Worker 使用独立 UID、各自 credential projection、固定 loopback transport 和有限资源。替换 `@RELEASE_ROOT@` 和 `@PYTHON_EXECUTABLE@`（已验收的独立 Python 环境）、配置只读发行目录、既有信任身份与独立状态目录之后，先执行 `systemd-analyze verify` 检查已渲染 unit。详细凭证名称及隔离规则见该目录的 `CREDENTIALS.md`。
+
+本包不会自动创建系统用户、复制凭证、安装或启用 unit。上述操作由实际安装角色在已批准的主机范围内完成。它们是配置绑定与部署行为，不要求重新签署仍有效的业务 Grant；若实际组件、环境、破坏性级别或预算超出授权，才进入真实 Owner 边界。
+
+将 `ACTIVATION_GATES.json` 复制为本次验收记录并逐项填入证据引用。不得把 `NOT_RUN` 批量改成 PASS。生产接入需要另外完成官方 Task authority adapter、Release recipe 的实际受治理 operation adapter、可信业务验收 verifier、单一活跃写权威切换和恢复演练。本地 validation profile 明确拒绝 production 配置。
+
+## 6. 回滚与存储恢复
+
+仅回滚隔离候选源码：
+
+```bash
+python3 "$AIOS_PACKAGE_ROOT/source/aios/tools/baseline_v1_1/bundle.py" rollback \
+  --directory "$AIOS_STAGE" --dry-run
+
+python3 "$AIOS_PACKAGE_ROOT/source/aios/tools/baseline_v1_1/bundle.py" rollback \
+  --directory "$AIOS_STAGE"
+```
+
+工具在首次写入前检查所有受影响文件当前仍为已部署 after hash/mode，并要求 HEAD 未产生后续提交；发现本地修改、符号链接或对象冲突即拒绝，不覆盖后改内容。回滚只恢复包内源码，不撤销远端副作用、不回退数据库、不修改 systemd。执行回滚前停止使用该候选目录的验证进程；对运行中的发行目录不使用本工具原地回滚。
+
+源码回退与业务补偿是不同操作。Release 是否允许回退由目标 artifact、数据兼容性和已验证 rollback operation 决定。存储恢复需先停止新 effect 准入，使用 SQLite backup API 或停止写者后的完整一致副本，同时恢复 Git/receipt/关联身份；只复制活跃 SQLite 主 DB 文件不构成可靠备份。恢复后先对账未决 effect，再恢复调度，记录实测 RPO/RTO。无法可靠记录 intent/lease/receipt 时，不得继续产生新副作用。
+
+## 7. 重新生成变更包
+
+由维护者在受审查的修改后源码仓库中执行；输出必须位于源码目录之外，且不能覆盖既有文件：
+
+```bash
+python3 tools/baseline_v1_1/bundle.py create \
+  --repo "$AIOS_STAGE" \
+  --base f5d015249604ce5bdacfd707608f83e8a3875f60 \
+  --output "$AIOS_PACKAGE_ROOT/reviewed-source-changes.zip"
+```
+
+输出 manifest 保存每个 added/modified/deleted 文件的 before/after SHA-256 与 mode，并包含精确的旧、新内容。重新生成后须重新验收和记录新包身份；不能沿用旧包的验收结论。

docs/implementation-baseline-1.1/JOB_SAFETY_REPORT.md

@@ -0,0 +1,91 @@
+# Job safety implementation report
+
+## Scope
+
+Task 1 hardens the existing SQLite Job controller and campaign executor. Legacy
+campaign, repository, branch, authorization-digest, protected-branch and
+machine-identity restrictions remain in force.
+
+## Delivered behavior
+
+- Branch and typed resource leases require an `AUTHORIZED` Job, a timezone-aware
+  future deadline no more than 300 seconds away, and revision CAS. Effect
+  receivers recheck the active lease ID, expiry and generation.
+- Generic registered operations can persist an `aios.operation-job.v1` binding
+  in the existing JobStore. Resource generations are allocated monotonically per
+  `(resource_kind, resource_id)` and are available through
+  `get_execution_lease()`.
+- Generic Jobs use an explicit transition graph. `LOCAL_VERIFIED` and
+  `COMPLETED` require a request-bound, lease-bound operation receipt accepted by
+  the mandatory `generic_receipt_verifier`; direct `REQUESTED` to `COMPLETED`
+  transitions and self-asserted booleans are rejected.
+- Reconciliation uses a durable claim ID, incrementing epoch, base revision and
+  short deadline. An expired `RECONCILING` claim can be taken over; late observer
+  results fail with `RECONCILIATION_CLAIM_LOST`.
+- Every campaign executor operation passes through the same dry-run boundary.
+  Dry-run performs validation/read-only planning and leaves the Job in
+  `REQUESTED`; no mutating adapter is called.
+- Real execution persists `EXECUTING / INTENT_COMMITTED` before an effect,
+  checks the lease at the effect boundary, performs exact readback and commits a
+  receipt with effect ID, operation and observation. An adapter without exact
+  readback yields `RECONCILIATION_REQUIRED`, `UNKNOWN` and the explicit
+  `EXACT_READBACK_UNSUPPORTED` blocker; it does not fabricate completion.
+- A persistence failure latches the executor against further effects. Durable
+  in-flight/UNKNOWN Jobs also block new-effect admission after restart through
+  `assert_effect_admission()`. Explicit reconciliation is the recovery path.
+- COMMIT_FILE now restores its content-addressed `payload_ref` and `payload_size`
+  from the durable request. Its current Authority adapter cannot identify an
+  unreferenced commit from intent alone, so execution reports the explicit exact
+  readback blocker instead of risking a duplicate commit.
+
+Campaign readback support is explicit: branch advance reads Authority and Gitea,
+branch sync reads Gitea, and main reconciliation reads Authority. PR, status and
+merge operations require adapter methods `read_pr`, `read_status` and
+`read_merge`; absent methods yield the blocker above before an effect. This is a
+safe integration requirement for the current adapters, not a success claim.
+
+## Integration API
+
+For a registered non-Git operation:
+
+1. `submit()` with schema `aios.operation-job.v1` and tenant, subject, mission,
+   grant, task, effect, operation/version, resource kind/ID and input digest.
+2. `advance(job_id, AUTHORIZED, ..., expected_revision=...)`.
+3. `lease_resource_job(..., generation=None, lease_expires_at=..., expected_revision=...)`.
+4. Read the assigned fence through `get_execution_lease(job_id)`.
+5. Call `assert_effect_admission(exclude_job_id=job_id)` before admitting a new
+   effect and `assert_execution_lease(job_id, lease_id=..., generation=...)`
+   immediately before the handler.
+6. Persist `EXECUTING` intent before the handler and a verified receipt plus
+   `COMPLETED` state after exact readback. On ambiguity call `reconcile()` with a
+   read-only observer; do not repeat the handler.
+
+Construct the controller with
+`generic_receipt_verifier=<trusted Ed25519 envelope verifier>`. Generic operation
+completion is unavailable when this verifier is absent.
+
+## Verification evidence
+
+Failure-first run before implementation: `13 failed` in the new safety suite,
+all at the missing clock/reconciliation/executor boundaries.
+
+Latest focused run before this report:
+
+```text
+................................................                         [100%]
+48 passed in 1.13s
+```
+
+This combines 16 Task 1 safety tests (including AT-22 subprocess crash and
+AT-23 persistence fault injection) with the pre-existing selected 32 Job tests.
+No network or production system was used.
+
+The separate completed-replay regression suite reports `11 passed in 1.16s`.
+The generic operation loop integration reports `6 passed in 0.55s`.
+
+Final combined run:
+
+```text
+.................................................................        [100%]
+65 passed in 1.71s
+```

docs/implementation-baseline-1.1/M0_M5_IMPLEMENTATION_RUNBOOK.md

@@ -0,0 +1,77 @@
+# M0–M5 实施手册与退出标准
+
+本手册区分已交付本地代码、尚待接线的现场能力和明确剩余实现。先按 `INSTALLATION.md` 校验包、建立独立 stage 并执行实际测试命令；所有阶段保留源码、配置、授权及证据身份。线上部署仍沿用既有批准的变更边界，不能把 validation profile 当作正式 authority adapter。
+
+当前使用者可立即执行本地 CLI 诊断闭环、测试和源码包工具。标为“剩余实现”的项目必须完成代码及针对性测试；标为“现场绑定”的项目必须提交真实目标证据，不能仅填写配置后标为完成。同一有效 Grant 内的机器证明续期和恢复不重复业务审批。
+
+## M0 — Truth & Identity
+
+**已交付代码：** `runtime_contract.py` 校验静态合同并拒绝动态 desired；目标/观测/provenance 评价；缺失 reconciliation 观测不再默认健康；运行 snapshot 的可信状态修正；消费服务自身 encrypted credential projection；源码 before/after hash 工具。
+
+**输入：** 原始源码/制品身份、组件清单、正式入口、权威角色、命名资源和凭证引用、受信配置来源。
+
+**执行：** 先只读采集 authority map；分别建立 Contract、DeploymentTarget、Observation 和 provenance。核对目标资源一致及新鲜度，显式保留 UNKNOWN。对已渲染配置执行 preflight；检查每个服务自身的凭证投影，按组件登记缺失项。
+
+**剩余实现/现场绑定：** 正式在线 Resolver、按操作 Doctor 和自动修复目录；真实 package/build identity 与运行内容对照；现场已有目标映射到 tenant/component/environment 后的冲突检测。当前固定绑定不是通用 Resolver 已完成。
+
+**退出标准：** 执行者能机器回答对象、入口、desired、observed、artifact/source、CredentialReference 和证据年龄；AT-01/02/13/15 对应范围有证据。main 前进不误判 drift，UNKNOWN 不放行。**回滚：** 撤销候选解析/配置切换，保留旧权威读取；不批量迁移目录，不重写动态 target 来迎合旧观测。
+
+## M1 — Authorization & Effect Safety
+
+**已交付代码：** 新 Grant/OperationalEpoch/Principal 签名链、撤销和 effect 预算；真实资源 lease 及单调 fencing；Job intent/receipt、可接管对账；统一 dry-run；持久未决 effect 阻止新 effect 的恢复门禁。
+
+**输入：** 已安装 Owner 公钥、机器签名身份、明确有效 Grant、OperationDefinition、精确资源及读回接口。
+
+**执行：** 注册已验签 Grant；自动派生收窄 Principal；在同一 intent 下申请真实 lease；执行前再次检查根授权/预算/接收端 fence。验证签名伪造、撤销、过期、scope 重放、CAS 竞争及 dry-run 无副作用；注入成功后 receipt 丢失、存储失败和对账 observer 乱序。
+
+**剩余实现/现场绑定：** 每个真实写 adapter 的 effect-keyed readback 与接收端 fencing；COMMIT_FILE 未引用 commit 的可定位恢复；实际密钥轮换、掉电、ENOSPC/WAL 故障。缺能力时维持显式 blocker，不能自动退回旧 endpoint。
+
+**退出标准：** AT-03～07、17、22、23 的适用项通过；intent 无法提交不执行，未知结果不盲重试。**回滚：** 停止新 effect 准入，保留 Grant 撤销记录、intent 和 receipt，先对账再恢复；代码回退不能删掉未决 Job 或重新解释旧签名。
+
+## M2 — Real Autonomous Loop
+
+**已交付代码：** 认证 HTTP 薄入口、既有 TaskPlaneStore 适配、Worker transport/heartbeat、能力与 fallback 策略、固定参数 Host status executor、签名诊断 receipt、Task 结果和 `goal-explain`。
+
+**输入：** M0/M1 基线、现存可读 `.service`、隔离状态目录、用户/Worker 固定认证身份、显式声明的 Worker scopes。
+
+**执行：** 按安装手册执行 `init-validation → preflight → grant-import`；启动 server，提交 goal，运行 Worker，查询任务及 mission。尽早通过这条真实非发布闭环接线；之后测试重复请求、跨租户访问、取消、超时、重启以及 ready+600 秒 fallback 竞争。
+
+**剩余实现/现场绑定：** 正式线上 Task API adapter；完整 blocked Doctor/修复/升级；目标级总计算和模型费用计量；artifact/cache 隔离；通知投递器/inbox 的故障闭环。现有 effect 数和任务 attempt 预算不是全部成本预算。
+
+**退出标准：** 真实常驻 Worker 经正式 admission/claim 执行已注册诊断并返回可归因 receipt；无伪造 Release；AT-08～12/14 的实施范围清晰。**回滚：** 停止候选 admission/Worker，恢复未决 claim/Job；已有 Task 不因切换丢失，不建立第二套线上 Task 表。
+
+## M3 — Release Closure
+
+**已交付代码：** `LineageLedger` 不可改绑关系；`ReleaseLedger` 动态 target CAS、不可变 recipe、稳定阶段 effect、saga 恢复；独立签名 receipt/acceptance verifier。ReleaseEpoch 语义由 release 身份及发布记录承载，不新增通用超级状态表。
+
+**输入：** 真实 Task/Job/Release 权威绑定、组件部署资源键、受保护 merge/build/deploy 操作、已验签 receipt、业务验收 verifier，以及同一 Grant 覆盖的准确阶段范围。
+
+**执行：** 先核验资源主键并补齐正式适配器。将每个 recipe 阶段接到正式 Job 权威，显式传递 task/grant/effect/job 身份，先持久 effect 后调用；验证 readback、权威 Job 和签名绑定，再推进 saga。执行同 Grant 的 patch→tests→受保护 merge→build→staging→业务验收→production→生产业务验收；至少注入一次 ambiguous publication 或 Worker crash 并恢复。
+
+**剩余实现/现场绑定：** 以上真实 mutation receiver、精确 publication readback、受信验收来源与完整发布链。本包不将历史 HTTP 写端点包成绕过新授权的 adapter；模拟 callback 成功仅证明状态机约束。
+
+**退出标准：** AT-16/17/19/20 有真实链路证据；acceptance 精确绑定 deployment+release+artifact。当前状态为生产发布 **NOT_VERIFIED**。**回滚：** 仅使用预先声明兼容的 rollback release/artifact 与受治理补偿操作；不可逆迁移走前向修复，保留失败部署事实。
+
+## M4 — Surface Reduction
+
+**已交付代码：** 不可改绑身份模型、源码 manifest、隔离 stage/冲突保护 rollback、部署门禁清单。它们支持切换审查，不自动停用线上写者。
+
+**输入：** 实际活跃 writer 清单、旧任务/schema/签名、迁移映射、接入路由、备份和最小恢复入口。
+
+**执行：** 按事实域和资源范围列出当前写入口；先验证新正式入口，再停止旧入口接受新任务，保留旧任务 handler 或进行明确迁移。逐一删除旁路调用、跨服务凭证路径和 production legacy imports。使用 SQLite backup API 或停止写者后的完整一致副本，在隔离环境恢复 SQLite/Git/receipt 并对账未决效果。
+
+**剩余实现/现场绑定：** 实际旧 writers 排空和路由切换、历史任务映射、数据库兼容迁移、整机一致备份与恢复脚本/演练。不能伪造历史缺失的 Task 或 receipt。
+
+**退出标准：** 每类事实 active write authority=1；旧 Task/Release writers 和 legacy 新任务入口均为 0；cross-service credential path、production legacy imports 为 0；AT-19～21 完成并记录实测 RPO/RTO。当前未宣称达标。**回滚：** 仅按已验证迁移/handler 兼容计划恢复单一入口；不同时重开新旧 writers，不将只复制 SQLite 主文件当一致恢复。
+
+## M5 — Optimization
+
+**已交付代码：** 签名 Envelope 校验、封闭低风险参数目录、提案持久化、可信实验 receipt、质量方向/底线判断、无改善停止，以及只生成受治理晋升 Task 的接口。
+
+**输入：** 已稳定通过前述闭环的运行证据、显式 Envelope、基线/候选指标、计算预算、强制测试/质量门、回退计划。
+
+**执行：** 首批选 retry/backoff、有限 Worker routing、证据复用、timeout、poll、通知去重等可测参数。记录提案，提交实验 Task，消费可信结果；只有满足质量底线、预算和最小改善才提交晋升 Task，再按普通治理链落地。
+
+**剩余实现/现场绑定：** 真实实验执行、费用计量、运行参数应用和回退 adapter；模型成本路由及经验适用范围管理。首版不自动重写架构核心代码或生产迁移规则。
+
+**退出标准：** AT-18 通过；授权政策、信任根、隔离、验收标准和 Grant 语义始终不在可优化范围；提案不能直接写 policy/runtime DB。**回滚：** 停止新提案与晋升，按受治理 Task 恢复已记录旧值；保留失败实验和停止原因，不降低验收标准换取成功。

docs/implementation-baseline-1.1/OPTIMIZATION_REPORT.md

@@ -0,0 +1,105 @@
+# Bounded Optimization Implementation Report
+
+## Scope
+
+Baseline 1.1 adds a proposal-only optimization controller. It can record a
+candidate and ask the authenticated task service to evaluate or promote it. It
+has no adapter for policy, authorization, trust-root, tenant-isolation,
+acceptance, destructive-operation, OwnerGrant, production-migration, or runtime
+configuration writes.
+
+The implemented public interfaces are:
+
+- `OptimizationEnvelope.from_dict(data, *, verify_envelope)`
+- `validate_proposal(envelope, proposal)`
+- `OptimizationController(path, envelope, submit_task, *, verify_receipt)`
+- `OptimizationController.propose(proposal, *, authenticated_context)`
+- `OptimizationController.record_evaluation(proposal_id, evaluation, *, authenticated_context)`
+- `OptimizationController.promote(proposal_id, promotion, *, authenticated_context)`
+- `OptimizationController.get_proposal(proposal_id, *, authenticated_context)`
+
+## Trust and authority boundaries
+
+Envelope parsing requires a verifier callback. The callback receives the key
+ID, canonical unsigned JSON bytes, and signature. A missing verifier, a
+verification exception, a non-`True` result, or any post-signature change is
+rejected. Semantic validation happens after signature verification and limits a
+signed envelope to a built-in set of low-risk parameter paths and hard numeric
+ranges. A trusted signer therefore cannot accidentally turn the envelope into a
+generic patch or broad capability mechanism.
+
+Task receipts are authenticated through a separate required verifier. The
+controller then checks the receipt schema, evaluation task ID, proposal ID,
+proposal digest, action, success result, and digest of the complete quality
+result. Promotion re-verifies the stored receipt and its quality-result binding.
+
+The authenticated root-service context supplies tenant, subject, grant, and
+mission IDs. All reads and state transitions require the same bindings that
+created the proposal. The controller includes those IDs in each task request.
+The task callback is the only outward effect.
+
+## Bounded behavior
+
+The closed parameter registry covers finite retry, backoff, limited candidate
+routing weight, tenant-scoped evidence reuse TTL, operation timeout, poll
+interval, notification-deduplication window, and optional-test sampling. Exact
+paths are required. Unknown paths and generic code-patch paths are rejected.
+
+Each proposal must remain within its envelope's component, non-production
+environment, change-count, compute-budget, and per-parameter bounds. Mandatory
+tests and quality gates must be present in both the proposed evaluation and the
+verified result. Evidence reuse, when supplied, must match the exact tenant,
+component, and environment; it cannot request a global or cross-tenant cache.
+A required rollback plan can only reference restoration of previous values and
+cannot embed a command.
+
+Direction-aware quality floors support both higher-is-better and
+lower-is-better metrics. The SQLite record contains the baseline, candidate,
+and normalized effect comparison. A floor violation, regression, missing
+mandatory check, budget overrun, or insufficient objective improvement moves
+the proposal to a terminal `STOPPED_*` state. Only an `ELIGIBLE` proposal can
+submit a promotion task. Promotion still does not apply the candidate directly.
+
+## Durable states
+
+The SQLite workflow uses these states:
+
+1. `PROPOSAL_RECORDED`
+2. `EVALUATION_SUBMITTED`
+3. `ELIGIBLE` or terminal `STOPPED_*`
+4. `PROMOTION_SUBMITTED`
+
+Invalid proposals with a safe, tenant-matching proposal ID are retained as
+`STOPPED_INVALID` without calling the task submitter. Proposal IDs are
+digest-bound, so reuse with different content is rejected. Evaluation and stop
+states cannot be overwritten by later evaluation submissions.
+
+## Test evidence
+
+The failure-first run was:
+
+```text
+python3 -m pytest -q tests/baseline_v1_1/test_optimization.py
+ERROR tests/baseline_v1_1/test_optimization.py
+ModuleNotFoundError: No module named 'aios_baseline.optimization'
+```
+
+After implementation and the terminal-state regression fix, the focused run
+was:
+
+```text
+19 passed in 0.13s
+```
+
+The tests cover signature tampering and missing verification, forbidden and
+generic paths, numeric limits, mandatory tests and gates, evidence-isolation
+scope, identity-bound task submission, invalid-candidate stopping, cross-tenant
+and cross-subject denial, untrusted and wrong-task receipts, quality regression,
+no improvement, terminal stop behavior, task-only promotion, and restart
+persistence of baseline/candidate/effect data.
+
+The separately assigned loopback transport suite also completed with 7 passed.
+It covers the real submit-to-receipt HTTP flow, cancel/query/explain, server-side
+token identity, tenant-spoof rejection, strict body/deadline/JSON handling,
+sanitized failures, redirect and non-loopback rejection, and the interruptible
+resident worker loop.

docs/implementation-baseline-1.1/RELEASE_LINEAGE_REPORT.md

@@ -0,0 +1,228 @@
+# Release and Lineage Implementation Report
+
+## Delivered authority boundaries
+
+`aios_baseline.lineage.LineageLedger` is a SQLite relationship authority. It
+does not own Task or Job state. Its constructor requires Task and Job authorities, and
+every `link_task` resolves the real Task before writing. The returned Task must
+carry the requested tenant and subject in its issuer or baseline metadata;
+mission, component, and Grant metadata must also match. Every `link_effect`
+resolves the durable Job and verifies its tenant, subject, mission, Grant,
+Task, and effect binding before recording the relationship.
+
+Opaque Task, effect, Job, Release, deployment, and acceptance IDs are unique
+within a tenant. The same opaque ID may exist in another tenant. Composite
+foreign keys also bind subject, mission, component, Grant, Release artifact, and deployment at
+the SQLite layer. The API treats an exact replay as idempotent and rejects any
+attempt to rebind:
+
+- a Task to another subject, mission, Grant, or source Task;
+- an effect to another Task or Job;
+- a Job to another effect/Task;
+- a release-producing effect to a second Release;
+- a Deployment to another Release, artifact, target revision, or environment;
+- an Acceptance to another Deployment, Release, artifact, tenant, or subject.
+
+`explain(tenant_id, subject_id, mission_id)` uses equality predicates for all
+three scope fields. It returns Tasks, effects/Jobs, Releases, Deployments, and
+Acceptances only for that exact mission.
+
+`aios_baseline.release.ReleaseLedger` owns dynamic
+`EnvironmentDeploymentTarget` records. A target is never written into a
+`RuntimeContract`. One target row exists per `(tenant, component, environment)`;
+the subject is the authenticated actor recorded for audit. Every target action
+passes through a configured resolver with tenant, subject, component,
+environment, and action. Multiple authorized subjects therefore share one CAS
+revision instead of creating conflicting desired state. `set_target` uses an expected-revision CAS; `None` creates
+revision 1 and later writes require the exact current revision. A `STAGED`
+target records source and observed-main revisions independently, so main being
+ahead of the staged source is valid. A `ROLLBACK_STAGED` target is admitted only
+when the current record has an explicit compatible rollback Release and exact
+artifact binding. The outer artifact object rejects recursive self-hash fields.
+
+Recipes and their canonical SHA-256 identities are immutable. A saga persists
+its recipe identity, component and source Task/effect/Grant, stable per-stage effect ID, effect intent, raw receiver
+receipt state, typed verified receipt binding, deployment facts, target
+revision, and CAS revision. The adapter must first create or resolve a real
+Job via `prepare`; only then does the lineage authority link the effect. An
+operation exception leaves `EFFECT_UNKNOWN`. Recovery calls adapter readback,
+and missing readback fails with `RECONCILIATION_REQUIRED` without repeating the
+effect. A returned but unverified receipt is persisted
+as `RECEIPT_UNVERIFIED`; it is reverified rather than causing the effect to be
+issued again. Only an injected verifier returning `VerifiedReceipt` with the
+exact component, Task, source effect, Grant, Job, effect, operation, tenant,
+subject, Deployment, Release, and artifact can
+advance a stage. Acceptance follows the same pattern through
+`VerifiedAcceptanceEvidence` and includes an explicit `acceptance_id`.
+
+## Public interfaces
+
+```python
+LineageLedger(path, task_authority, job_authority)
+ledger.link_task(tenant_id, subject_id, mission_id, grant_id, task_id,
+                 source_task_id=None, metadata=None)
+ledger.link_effect(tenant_id, subject_id, mission_id, task_id, effect_id,
+                   job_id, source_effect_id=None, metadata=None)
+ledger.link_release(tenant_id, subject_id, mission_id, effect_id, release_id,
+                    artifact, metadata=None)
+ledger.link_deployment(tenant_id, subject_id, mission_id, release_id,
+                       deployment_id, component_id, environment, target_revision, artifact,
+                       metadata=None)
+ledger.record_acceptance(tenant_id, subject_id, mission_id, component_id, acceptance_id,
+                         deployment_id, release_id, artifact, accepted,
+                         evidence=raw_evidence, verifier=trusted_verifier)
+ledger.explain(tenant_id, subject_id, mission_id)
+
+ReleaseLedger(path, lineage=ledger, receipt_verifier=trusted_verifier,
+              target_authorizer=authorization_resolver)
+releases.register_recipe(recipe_id, stages)
+releases.set_target(tenant_id, subject_id, component_id, environment, release_id, artifact,
+                    expected_revision=revision_or_none, stage="STAGED", ...)
+releases.start_saga(tenant_id, subject_id, mission_id, component_id, saga_id, release_id,
+                    deployment_id, environment, artifact, recipe_id,
+                    expected_target_revision=revision)
+releases.advance_saga(tenant_id, subject_id, saga_id, expected_revision,
+                      governed_operation_adapter)
+releases.get_saga(tenant_id, subject_id, saga_id)
+releases.deployment_facts(tenant_id, subject_id, component_id, deployment_id)
+```
+
+An artifact argument may be a non-empty string or canonical JSON object. The
+object is compared by canonical JSON identity; outer self-hash fields such as
+`manifest_sha256` are forbidden.
+
+## Existing Bridge and governance audit
+
+The existing loopback Bridge exposes `/v2/release/artifact`,
+`/v2/release/execute`, `/v2/release/consistency`, and
+`/v2/release/acceptance`. These endpoints use the historical static tuple
+`version`, `target_oid`, `evidence_closure_oid`, and `approval_plan_id` (plus
+`execute` where applicable). Static source review found that this protocol is
+not a conforming ReleaseLedger operation receiver:
+
+1. The Bridge allowlist rejects the new tenant, subject, mission, component, Grant, Task,
+   Job, effect, Deployment, target-revision, and idempotency fields.
+2. Release routes are outside the Bridge's TaskPrincipal-protected mutating
+   operation set. They therefore cannot demonstrate the new Grant/Task/Job
+   authorization chain.
+3. Historical release responses are unsigned and are not bound to the stable
+   saga effect ID, Deployment ID, Release ID, subject, or canonical artifact.
+   A `status`, `accepted`, or `ACTIVE_VERIFIED` field is not verifier authority.
+4. The trusted-plan executor deliberately rejects production execution with
+   `PRODUCTION_EXECUTION_REQUIRES_APPROVED_RELEASE_EXECUTOR`. The legacy path
+   invokes its pre-existing privileged production adapter, but it is not routed
+   through the new Grant/Job/effect protocol and must not be repurposed as that
+   protocol.
+5. The Bridge has no effect-keyed readback endpoint that can reconcile an
+   unknown ReleaseLedger stage after response loss.
+6. Historical acceptance is not bound to an explicit acceptance and
+   Deployment identity and does not return verifier-authenticated evidence for
+   the new ledger.
+
+## Configured Ed25519 verification
+
+`aios_baseline.verifiers` provides verification-only factories. Trusted public
+keys are supplied by local configuration when the factory is built and copied
+into an immutable map. A request cannot add or replace a key. Values may be an
+`Ed25519PublicKey`, 32 raw public-key bytes, or an unpadded base64url public key.
+
+```python
+from aios_baseline.release import ReleaseLedger
+from aios_baseline.verifiers import (
+    ed25519_acceptance_evidence_verifier,
+    ed25519_release_receipt_verifier,
+)
+
+trusted_release_receivers = {
+    "staging-receiver-2026": configured_ed25519_public_key,
+}
+trusted_acceptance_observers = {
+    "staging-observer-2026": configured_acceptance_public_key,
+}
+
+releases = ReleaseLedger(
+    state_path,
+    lineage=lineage,
+    receipt_verifier=ed25519_release_receipt_verifier(
+        trusted_release_receivers
+    ),
+    target_authorizer=configured_component_target_authorizer,
+)
+acceptance_verifier = ed25519_acceptance_evidence_verifier(
+    trusted_acceptance_observers
+)
+```
+
+Operation receipts use envelope schema
+`aios.release-operation-receipt-envelope.v1` and signature domain
+`aios.release-operation-receipt.v1`. Acceptance evidence uses envelope schema
+`aios.release-acceptance-evidence-envelope.v1` and the separate signature domain
+`aios.release-acceptance-evidence.v1`. The signature input is the ASCII domain,
+a zero byte, and strict canonical JSON for the payload. The verifier rejects
+unknown envelope/payload fields, unknown key IDs, caller-provided public-key
+fields, cross-domain signatures, a non-`SUCCEEDED` operation outcome, a
+non-Boolean acceptance decision, and any component/Task/Grant/Job/effect/
+Deployment/Release/artifact binding mismatch. This key
+set and both domains are separate from the diagnostic `evidence.ReceiptSigner`.
+
+For that reason, this package does not add a loopback HTTP writer around the
+historical endpoints. Such a wrapper would create a governance bypass while
+appearing to satisfy the new contract. The currently safe, observation-only
+projection is:
+
+```json
+{
+  "transport": "loopback-http",
+  "base_url": "http://127.0.0.1:18892",
+  "operations": {
+    "release.consistency.observe": {
+      "method": "POST",
+      "path": "/v2/release/consistency",
+      "request_projection": [
+        "version",
+        "target_oid",
+        "evidence_closure_oid",
+        "approval_plan_id"
+      ],
+      "receipt_use": "diagnostic-only-unverified"
+    }
+  },
+  "mutating_operations": {},
+  "verified_receipt_operations": {}
+}
+```
+
+A future conforming receiver must admit a new OperationalEpoch/TaskPrincipal,
+create or reuse the authoritative Job before the effect, fence idempotency by
+`effect_id`, expose effect-keyed readback, and return a signature-verified
+receipt over all ReleaseLedger binding fields. That receiver belongs at the
+existing Job and approved-release authority boundary, not in this relationship
+ledger.
+
+## Verification and honest status
+
+Failure-first execution initially failed at import because the modules did not
+exist. After implementation:
+
+- `test_release_lineage.py`: **15 passed**. This uses a local SQLite file and
+  reopens both ledgers across simulated process boundaries. Task authority and
+  receipt verifiers are controlled callback fixtures; the operation callback
+  is a fake configured sink used only to test fencing and verification. Two
+  additional tests use real Ed25519 keys and cryptographic verification for
+  valid signatures, signature tampering, cross-domain replay, caller key
+  injection, decision mismatch, and Deployment mismatch. The valid signed
+  acceptance is also persisted through the real SQLite ledger path.
+- Candidate-schema tests verify independent targets for two components in one
+  environment, one shared CAS across authorized subjects, denial of an
+  unauthorized subject, cross-component receipt rejection, refusal to repeat
+  an unknown effect without readback, and fail-closed rejection of an
+  unversioned candidate database. These schemas have not been released, so no
+  implicit legacy migration is provided.
+- A targeted local loop test passed with the real `TaskPlaneStore` and
+  `JobStore.read` authorities, including parsing the durable Job's
+  `request_json.binding` and checking tenant/subject/mission/Grant/Task/effect.
+
+No Bridge server, remote Git authority, production executor, production health
+endpoint, or installed signing identity was exercised. Remote deployment and
+acceptance are **NOT_VERIFIED**. No production success or live activation is
+claimed.

docs/implementation-baseline-1.1/SERVICE_LOOP_REPORT.md

@@ -0,0 +1,44 @@
+# 实际任务闭环、集成边界与审查修正
+
+## 可执行入口
+
+`python -m aios_baseline.cli` 提供 `init-validation`、`preflight`、`grant-import`、`grant-revoke`、`server`、`worker`、`goal-submit`、`goal-explain`、`task-get`、`task-cancel`。真实 transport 是 IPv4 loopback HTTP；身份来自服务端持有的 token 映射。Worker 进程登记、heartbeat、claim、renew、execute，不能提交自行声称成功的 receipt，也不能从请求指定 tenant/subject 或任意命令。
+
+Task/claim/outbox 使用既有 `TaskPlaneStore`；新增 runtime 信息在同一 Task 数据库中，仅含 readiness、blocker、effect/job 关联。Generic Job 使用既有 JobController/JobStore，独立资源围栏按 tenant/component/environment 分配单调 generation。Lineage 查询真实 Task 和 Job 权威后才保存关系；它不创建这些事实。
+
+配置文件、私钥、token 和公钥均通过 no-follow 打开并对实际文件描述符检查所有者、权限、大小；已有非空状态目录必须带精确的隔离权威标识。Owner key 显式绑定 tenant/subject scope。业务 Grant 与机器密钥分离；机器 receipt key 轮换通过受信历史公钥保留旧证据，不能因签名密钥变化就重新执行已完成 effect。
+
+## 第一个纵向闭环的真实范围
+
+`goal-submit → Task admission → HTTP Worker claim → Job intent → Grant/lease/fencing → 受限 systemctl show 子进程 → 签名 receipt → Task completion → goal-explain`。
+
+`service-status` 是内置 READ_ONLY operation，组件绑定必须精确到 `tenant:environment:component`，不会尝试路径、扫描所有凭证或访问 SSH。测试启动真实 HTTP server、独立子进程、SQLite 和 Ed25519；可控 systemctl 程序用于构造稳定观测。现场运行使用 `/usr/bin/systemctl` 与已登记 unit，实际目标健康、systemd 权限及凭证解密仍需现场证据。
+
+“完成诊断”不等于“组件健康”。receipt 保留实际 `healthy` 和 systemd 观测；没有有效观测不会生成成功 receipt。任务查询同时返回 Job state、side-effect state、blocker 和剩余 Task budget。
+
+当前 server 对 host operation 采用有界串行执行，HTTP 并发连接最多 16 个，token 长度统一为 32～512 字符。HTTP deadline 限制执行锁等待并传到 receiver；host 子进程固定 argv、无继承凭证环境、固定可执行文件身份、累计 stdout/stderr 上限 64 KiB、超时杀进程组。单机首次实现采用全 Job 域的保守停止准入策略：未决效果会阻止新的效果；物理存储故障保持全局停止。更细的租户/资源并行度属于后续可测优化，不以牺牲恢复判断换吞吐。
+
+## 本次审查发现并已修复的具体缺陷
+
+| 缺陷 | 修正 | 行为测试 |
+| --- | --- | --- |
+| 每任务 attempt 从 1 开始，被误用于全资源围栏 | Job 权威按资源分配 generation；旧持有者被拒绝 | 连续两任务围栏代数为 1、2 |
+| Generic Job 可直接 REQUESTED→COMPLETED | 显式状态转换、已持久 lease、强制可信 receipt verifier | 越级完成、缺 verifier、改绑均拒绝 |
+| 签名正确但 job/mission/grant 等关联错误仍能完成 Task | 对照实际 Job request/lease/Task 逐项验证身份、输入摘要和 observation | 多字段签名错绑拒绝 |
+| 取消后恢复可将任务重新完成或置为可重试 | Task 权威在恢复事务内保留终态；heartbeat 也拒绝终态和到期 lease | 已取消 expired claim 不复活 |
+| 跨租户安装的 Owner key 自动获得全租户签发权 | 显式 owner_key_scopes，并在每次持久读取验证 | 跨 tenant/subject、重启收窄 trust 均拒绝 |
+| 已完成 receipt 的密钥轮换被误判成 effect 未发生 | receipt 带 key_id，显式旧公钥信任；无法验签进入未知而非重做 | 旧证据仅在明确受信时可用 |
+| 排队请求可越过客户端 deadline 开始执行 | 有期限的执行锁及 receiver deadline、claim/fence 二次核验 | 过期排队请求不启动 host |
+| 子进程输出在读完后才限额 | 增量有界读取，超限立即终止进程组 | 输出洪泛与 binary 被替换时拒绝 |
+| 生产 snapshot 固定 ACTIVE 和旧版本 | 验证动态 observation/target/provenance；缺失或过期为 UNKNOWN | 新鲜、错绑、缺失、过期观测 |
+| staging 消费另一服务临时 credential 路径 | 每消费者直接投影同名 encrypted credential，使用自身 `%d` | unit 投影身份与独立路径断言 |
+| DeploymentTarget 按 subject 分裂、缺组件维度 | tenant/component/environment 资源主键、统一 CAS 与独立授权 | 两组件目标、同组件多操作者和拒权 |
+| Release 把计划 Job ID 当事实，未知时可退回 execute | adapter prepare 后查询真实 Job；UNKNOWN 只走 reconcile | 虚假 Job、无 reconcile、错组件验收拒绝 |
+
+## 尚未接入现场的部分
+
+正式 Task API adapter、完整 Doctor 修复/升级、整条真实发布 recipe、独立业务 acceptance executor、目标级模型/费用计量、artifact/cache/工作目录的全部生产路径、旧 writer 排空及整机一致备份恢复，都需要具体现场绑定或剩余适配代码。对应 M0–M5 runbook 与 Release 报告已列出输入、职责和门禁。本包不会通过扩大角色权限、伪造远端回执或启用 legacy global write 来掩盖缺口。
+
+新 Lineage/Release 候选数据库带 schema version；未知或早期无版本候选库明确拒绝。包从新隔离目录启动，不静默修改线上数据库。历史 epoch 签名格式和受保护分支政策保留原语义。
+
+实际统一验收的命令、版本、源码逐文件 SHA、JUnit 和退出码在完整包 `acceptance/`；各模块报告中的早期数量只用于记录开发过程，以最后统一结果为准。

scripts/phase2_introspect_and_freeze.py

@@ -0,0 +1,543 @@
+"""Read-only Phase 2 runtime introspection with a bounded SSH transport.
+
+The wrapper is deliberately sent as ``subprocess.run(input=payload)``.  No
+JSON, ABI data, or base64 representation is placed in the Windows SSH argv;
+the default argv is the fixed, short command documented by
+``DEFAULT_REMOTE_COMMAND``.
+
+The remote wrapper reads the current issuer unit's MainPID, WorkingDirectory,
+and PYTHONPATH, then resolves only the named importable modules.  It does not
+walk release trees, ``/opt``, historical worktrees, SOUL, or MEMORY, and it
+does not call a database, signer, Bridge, Task API, or mutation endpoint.
+
+This module is locally testable, but the module import and systemd/POSIX
+behaviour still require external Linux live validation.  Phase 2 status is
+always explicit about all mutation classes being false.
+"""
+
+from __future__ import annotations
+
+import argparse
+import ast
+import hashlib
+import json
+import subprocess
+import sys
+from pathlib import Path
+from typing import Any, Callable, Mapping, Sequence
+
+
+DEFAULT_SSH = "ssh.exe"
+DEFAULT_HOST = "hw"
+DEFAULT_REMOTE_COMMAND = 'test "$(hostname)" = cn-network-mkt && sudo -n python3 -'
+DEFAULT_TIMEOUT_SECONDS = 60
+DEFAULT_ISSUER_UNIT = "aios-task-principal-issuer.service"
+DEFAULT_ADMISSION_MODULE = "aios_task_principal_admission"
+DEFAULT_MIGRATION_MODULE = "aios_task_principal_storage_migration"
+DEFAULT_REQUIRED_ADMISSION_FUNCTIONS = (
+    "offline_migrate_task_principal_schema",
+    "supersede_p0_scope",
+)
+DEFAULT_MIGRATION_VERIFIER = "SSHOwnerBootstrapVerifier"
+MAX_ARGV_BYTES = 512
+MAX_REQUEST_BYTES = 32 * 1024
+
+MUTATION_FLAGS = (
+    "task_db_mutation",
+    "scope_mutation",
+    "git_mutation",
+    "service_mutation",
+)
+
+
+class RemoteTransportError(RuntimeError):
+    """A safe, non-secret description of an SSH transport failure."""
+
+
+class Phase2StatusError(RuntimeError):
+    """The remote result was not a valid fail-closed Phase2 status."""
+
+
+def build_ssh_argv(
+    ssh: str = DEFAULT_SSH,
+    host: str = DEFAULT_HOST,
+) -> list[str]:
+    """Return the only SSH argv shape permitted by the Phase2 transport."""
+
+    argv = [
+        ssh,
+        "-T",
+        "-o",
+        "BatchMode=yes",
+        "-o",
+        "ConnectTimeout=12",
+        host,
+        DEFAULT_REMOTE_COMMAND,
+    ]
+    argv_bytes = sum(len(part.encode("utf-8")) + 1 for part in argv)
+    if argv_bytes > MAX_ARGV_BYTES:
+        raise ValueError("SSH argv exceeds the Phase2 hard limit")
+    return argv
+
+
+def run_remote_python(
+    payload: bytes,
+    *,
+    ssh: str = DEFAULT_SSH,
+    host: str = DEFAULT_HOST,
+    timeout: float = DEFAULT_TIMEOUT_SECONDS,
+    runner: Callable[..., Any] = subprocess.run,
+) -> bytes:
+    """Send *payload* as stdin to the fixed remote Python command.
+
+    Error messages intentionally contain no stderr text.  SSH stderr can
+    include command output, environment values, or credentials emitted by a
+    misconfigured remote service.
+    """
+
+    if not isinstance(payload, bytes):
+        raise TypeError("payload must be bytes")
+    if timeout <= 0:
+        raise ValueError("timeout must be positive")
+
+    argv = build_ssh_argv(ssh=ssh, host=host)
+    try:
+        completed = runner(
+            argv,
+            input=payload,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+            timeout=timeout,
+            check=False,
+        )
+    except subprocess.TimeoutExpired as exc:
+        raise RemoteTransportError(
+            f"remote SSH timed out after {timeout:g} seconds"
+        ) from exc
+    except OSError as exc:
+        raise RemoteTransportError("remote SSH could not be started") from exc
+
+    return_code = getattr(completed, "returncode", None)
+    if return_code != 0:
+        raise RemoteTransportError(f"remote SSH exited with status {return_code}")
+    output = getattr(completed, "stdout", b"")
+    if isinstance(output, str):
+        output = output.encode("utf-8")
+    if not isinstance(output, bytes):
+        raise RemoteTransportError("remote SSH returned a non-byte stdout value")
+    return output
+
+
+def module_sha256(path: str | Path) -> str:
+    """Hash one resolved module file without searching neighbouring files."""
+
+    digest = hashlib.sha256()
+    with Path(path).open("rb") as source:
+        for block in iter(lambda: source.read(1024 * 1024), b""):
+            digest.update(block)
+    return digest.hexdigest()
+
+
+def validate_public_function_ast(
+    source: str,
+    required_functions: Sequence[str] = DEFAULT_REQUIRED_ADMISSION_FUNCTIONS,
+) -> dict[str, Any]:
+    """Validate public symbols and the source-level export mechanism.
+
+    The live admission overlay intentionally re-exports the legacy public API
+    through a small ``globals()[name] = value`` loop.  Requiring every public
+    function to be a direct ``def`` would therefore reject the exact deployed
+    module even though the runtime symbol and signature are present.  The AST
+    check still proves that the module has either a direct/imported binding or
+    an explicit dynamic re-export mechanism; the caller separately verifies
+    the runtime callable and its signature.
+    """
+
+    try:
+        tree = ast.parse(source)
+    except SyntaxError as exc:
+        return {
+            "ok": False,
+            "missing": list(required_functions),
+            "error": f"AST_PARSE_ERROR:{exc.msg}",
+        }
+
+    top_level = {
+        node.name: node
+        for node in tree.body
+        if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef))
+        and not node.name.startswith("_")
+    }
+    imported = {
+        alias.asname or alias.name.split(".", 1)[0]
+        for node in tree.body
+        if isinstance(node, (ast.Import, ast.ImportFrom))
+        for alias in node.names
+        if alias.name != "*"
+    }
+    dynamic_reexport = any(
+        isinstance(node, ast.Call)
+        and isinstance(node.func, ast.Name)
+        and node.func.id == "globals"
+        for node in ast.walk(tree)
+    )
+    bound = set(top_level) | imported
+    missing = [
+        name
+        for name in required_functions
+        if name not in bound and not dynamic_reexport
+    ]
+    return {
+        "ok": not missing,
+        "missing": missing,
+        "functions": sorted(top_level),
+        "imported": sorted(imported),
+        "dynamic_reexport": dynamic_reexport,
+    }
+
+
+def make_phase2_status(
+    status: str,
+    errors: Sequence[str] = (),
+    **details: Any,
+) -> dict[str, Any]:
+    """Create a status object whose mutation flags are always false."""
+
+    result: dict[str, Any] = {
+        "kind": "phase2-status",
+        "version": 1,
+        "status": status,
+        "read_only": True,
+        "fail_closed": status != "PASS",
+    }
+    result.update({flag: False for flag in MUTATION_FLAGS})
+    if errors:
+        result["errors"] = list(errors)
+    result.update(details)
+    return result
+
+
+def validate_phase2_status(status: Mapping[str, Any]) -> dict[str, Any]:
+    """Validate the result contract and reject any mutation claim."""
+
+    if status.get("kind") != "phase2-status":
+        raise Phase2StatusError("remote result is not phase2-status")
+    for flag in MUTATION_FLAGS:
+        if status.get(flag) is not False:
+            raise Phase2StatusError(f"remote result has invalid {flag}")
+    if status.get("status") not in {"PASS", "FAIL"}:
+        raise Phase2StatusError("remote result has invalid status")
+    return dict(status)
+
+
+def _json_request(request: Mapping[str, Any]) -> str:
+    """Serialize only a small request into the stdin-delivered wrapper."""
+
+    encoded = json.dumps(dict(request), ensure_ascii=True, separators=(",", ":"))
+    if len(encoded.encode("utf-8")) > MAX_REQUEST_BYTES:
+        raise ValueError("Phase2 request is unexpectedly large")
+    return encoded
+
+
+REMOTE_SCRIPT_PREFIX = r'''# Phase2 read-only runtime wrapper.  Do not add mutations here.
+import ast
+import hashlib
+import importlib
+import importlib.util
+import inspect
+import json
+import os
+import shlex
+import subprocess
+import sys
+from pathlib import Path
+
+sys.dont_write_bytecode = True
+REQUEST = json.loads('''
+REMOTE_SCRIPT_SUFFIX = r''')
+
+MUTATION_FLAGS = ("task_db_mutation", "scope_mutation", "git_mutation", "service_mutation")
+
+def status(status_name, errors=(), **details):
+    result = {
+        "kind": "phase2-status",
+        "version": 1,
+        "status": status_name,
+        "read_only": True,
+        "fail_closed": status_name != "PASS",
+    }
+    result.update({flag: False for flag in MUTATION_FLAGS})
+    if errors:
+        result["errors"] = list(errors)
+    result.update(details)
+    return result
+
+def systemd_value(unit, property_name):
+    try:
+        completed = subprocess.run(
+            ["systemctl", "show", unit, "--property=" + property_name, "--value", "--no-pager"],
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+            check=False,
+            timeout=12,
+        )
+    except (OSError, subprocess.TimeoutExpired):
+        raise RuntimeError("SYSTEMD_QUERY_FAILED")
+    if completed.returncode != 0:
+        raise RuntimeError("SYSTEMD_QUERY_FAILED")
+    return completed.stdout.decode("utf-8", "strict").strip()
+
+def parse_pythonpath(environment_value):
+    for token in shlex.split(environment_value):
+        if token.startswith("PYTHONPATH="):
+            return token[len("PYTHONPATH="):].split(os.pathsep)
+    return []
+
+def runtime_identity():
+    unit = REQUEST.get("issuer_unit", "aios-task-principal-issuer.service")
+    pid = REQUEST.get("issuer_pid")
+    working_directory = REQUEST.get("working_directory")
+    pythonpath = REQUEST.get("pythonpath")
+    # Regression callers may pin one identity component while obtaining the
+    # remaining components from the live unit.  In particular, never replace
+    # an explicitly supplied PID with a newly queried MainPID.
+    if pid is None:
+        pid = int(systemd_value(unit, "MainPID"))
+    if working_directory is None:
+        working_directory = systemd_value(unit, "WorkingDirectory")
+    if pythonpath is None:
+        pythonpath = parse_pythonpath(systemd_value(unit, "Environment"))
+    if not pid or not working_directory or working_directory == "-":
+        raise RuntimeError("ISSUER_RUNTIME_IDENTITY_INCOMPLETE")
+    if isinstance(pythonpath, str):
+        pythonpath = pythonpath.split(os.pathsep)
+    return {
+        "unit": unit,
+        "main_pid": int(pid),
+        "working_directory": working_directory,
+        "pythonpath": [item for item in pythonpath if item],
+    }
+
+def setup_import_path(identity):
+    path = [identity["working_directory"]]
+    path.extend(identity["pythonpath"])
+    path.extend(item for item in sys.path if item and item not in path)
+    sys.path[:] = path
+
+def importable_module(module_name):
+    try:
+        spec = importlib.util.find_spec(module_name)
+        if spec is None or not spec.origin or spec.origin in {"built-in", "frozen"}:
+            raise RuntimeError("MODULE_NOT_IMPORTABLE:" + module_name)
+        module = importlib.import_module(module_name)
+    except Exception as exc:
+        if isinstance(exc, RuntimeError):
+            raise
+        raise RuntimeError("MODULE_IMPORT_FAILED:" + module_name) from exc
+    module_path = getattr(module, "__file__", None)
+    if not module_path:
+        raise RuntimeError("MODULE_HAS_NO_FILE:" + module_name)
+    return module, Path(module_path).resolve()
+
+def hash_file(path):
+    digest = hashlib.sha256()
+    with path.open("rb") as source:
+        for block in iter(lambda: source.read(1024 * 1024), b""):
+            digest.update(block)
+    return digest.hexdigest()
+
+def inspect_admission(module, path, required, expected_hash):
+    source = path.read_text(encoding="utf-8")
+    tree = ast.parse(source)
+    nodes = {
+        node.name: node for node in tree.body
+        if isinstance(node, (ast.FunctionDef, ast.AsyncFunctionDef))
+        and not node.name.startswith("_")
+    }
+    imported = {
+        alias.asname or alias.name.split(".", 1)[0]
+        for node in tree.body
+        if isinstance(node, (ast.Import, ast.ImportFrom))
+        for alias in node.names
+        if alias.name != "*"
+    }
+    dynamic_reexport = any(
+        isinstance(node, ast.Call)
+        and isinstance(node.func, ast.Name)
+        and node.func.id == "globals"
+        for node in ast.walk(tree)
+    )
+    bound = set(nodes) | imported
+    missing = [
+        name
+        for name in required
+        if name not in bound and not dynamic_reexport
+    ]
+    if missing:
+        raise RuntimeError("PUBLIC_SYMBOL_MISSING:" + ",".join(missing))
+    signatures = {}
+    for name in required:
+        value = getattr(module, name, None)
+        if value is None:
+            raise RuntimeError("PUBLIC_SYMBOL_NOT_IMPORTABLE:" + name)
+        try:
+            signatures[name] = str(inspect.signature(value))
+        except (TypeError, ValueError):
+            raise RuntimeError("SIGNATURE_UNAVAILABLE:" + name)
+    actual_hash = hash_file(path)
+    if expected_hash and actual_hash != expected_hash:
+        raise RuntimeError("MODULE_HASH_MISMATCH:admission")
+    return {
+        "name": module.__name__,
+        "path": str(path),
+        "sha256": actual_hash,
+        "signatures": signatures,
+        "ast_functions": sorted(nodes),
+        "ast_imported": sorted(imported),
+        "ast_dynamic_reexport": dynamic_reexport,
+    }
+
+def inspect_migration(module, path, verifier_name, expected_hash):
+    verifier = getattr(module, verifier_name, None)
+    if verifier is None:
+        raise RuntimeError("MIGRATION_VERIFIER_MISSING:" + verifier_name)
+    try:
+        signature = str(inspect.signature(verifier))
+    except (TypeError, ValueError):
+        raise RuntimeError("MIGRATION_VERIFIER_SIGNATURE_UNAVAILABLE")
+    actual_hash = hash_file(path)
+    if expected_hash and actual_hash != expected_hash:
+        raise RuntimeError("MODULE_HASH_MISMATCH:migration")
+    return {
+        "name": module.__name__,
+        "path": str(path),
+        "sha256": actual_hash,
+        "verifier": verifier_name,
+        "signature": signature,
+    }
+
+def main():
+    try:
+        identity = runtime_identity()
+        setup_import_path(identity)
+        admission_name = REQUEST.get("admission_module", "aios_task_principal_admission")
+        migration_name = REQUEST.get("migration_module", "aios_task_principal_storage_migration")
+        if migration_name == admission_name:
+            raise RuntimeError("MIGRATION_MODULE_NOT_DISTINCT")
+        required = tuple(REQUEST.get("required_admission_functions", (
+            "offline_migrate_task_principal_schema", "supersede_p0_scope")))
+        admission, admission_path = importable_module(admission_name)
+        migration, migration_path = importable_module(migration_name)
+        admission_info = inspect_admission(
+            admission,
+            admission_path,
+            required,
+            REQUEST.get("expected_admission_sha256"),
+        )
+        migration_info = inspect_migration(
+            migration,
+            migration_path,
+            REQUEST.get("migration_verifier", "SSHOwnerBootstrapVerifier"),
+            REQUEST.get("expected_migration_sha256"),
+        )
+        print(json.dumps(status(
+            "PASS",
+            issuer=identity,
+            modules={"admission": admission_info, "migration": migration_info},
+            ast_public_functions=list(required),
+        ), sort_keys=True, separators=(",", ":")))
+    except Exception as exc:
+        # Emit only stable error classes and never exception text from imports.
+        error = str(exc).split(":", 1)[0] or "PHASE2_INTROSPECTION_FAILED"
+        print(json.dumps(status("FAIL", errors=[error]), sort_keys=True, separators=(",", ":")))
+
+if __name__ == "__main__":
+    main()
+'''
+
+
+def build_remote_payload(request: Mapping[str, Any] | None = None) -> bytes:
+    """Build the stdin wrapper; request data never enters SSH argv."""
+
+    request = {} if request is None else request
+    # repr() makes the embedded JSON a valid Python string for every request
+    # value, including apostrophes and backslashes; it still remains stdin.
+    request_literal = repr(_json_request(request))
+    return (REMOTE_SCRIPT_PREFIX + request_literal + REMOTE_SCRIPT_SUFFIX).encode("utf-8")
+
+
+def _load_request(args: argparse.Namespace) -> dict[str, Any]:
+    request: dict[str, Any] = {}
+    if args.request_json:
+        loaded = json.loads(args.request_json)
+        if not isinstance(loaded, dict):
+            raise ValueError("request JSON must be an object")
+        request.update(loaded)
+    if args.request_file:
+        loaded = json.loads(Path(args.request_file).read_text(encoding="utf-8"))
+        if not isinstance(loaded, dict):
+            raise ValueError("request JSON must be an object")
+        request.update(loaded)
+
+    overrides = {
+        "issuer_unit": args.issuer_unit,
+        "issuer_pid": args.issuer_pid,
+        "working_directory": args.working_directory,
+        "pythonpath": args.pythonpath,
+        "admission_module": args.admission_module,
+        "migration_module": args.migration_module,
+        "expected_admission_sha256": args.expected_admission_sha256,
+        "expected_migration_sha256": args.expected_migration_sha256,
+    }
+    request.update({key: value for key, value in overrides.items() if value is not None})
+    return request
+
+
+def _write_status(path: str | Path, status: Mapping[str, Any]) -> None:
+    destination = Path(path)
+    destination.write_text(
+        json.dumps(dict(status), ensure_ascii=True, indent=2, sort_keys=True) + "\n",
+        encoding="utf-8",
+    )
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("--request-json")
+    parser.add_argument("--request-file")
+    parser.add_argument("--output", default="phase2-status.json")
+    parser.add_argument("--ssh", default=DEFAULT_SSH)
+    parser.add_argument("--host", default=DEFAULT_HOST)
+    parser.add_argument("--timeout", type=float, default=DEFAULT_TIMEOUT_SECONDS)
+    parser.add_argument("--issuer-unit")
+    parser.add_argument("--issuer-pid", type=int)
+    parser.add_argument("--working-directory")
+    parser.add_argument("--pythonpath", nargs="*")
+    parser.add_argument("--admission-module")
+    parser.add_argument("--migration-module")
+    parser.add_argument("--expected-admission-sha256")
+    parser.add_argument("--expected-migration-sha256")
+    args = parser.parse_args(argv)
+
+    try:
+        request = _load_request(args)
+        payload = build_remote_payload(request)
+        stdout = run_remote_python(
+            payload,
+            ssh=args.ssh,
+            host=args.host,
+            timeout=args.timeout,
+        )
+        remote_status = json.loads(stdout.decode("utf-8"))
+        status = validate_phase2_status(remote_status)
+    except (OSError, ValueError, json.JSONDecodeError, RemoteTransportError, Phase2StatusError) as exc:
+        status = make_phase2_status("FAIL", errors=[str(exc).split(":", 1)[0]])
+        _write_status(args.output, status)
+        return 1
+
+    _write_status(args.output, status)
+    return 0 if status["status"] == "PASS" else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

tests/baseline_v1_1/test_authorization.py

@@ -0,0 +1,666 @@
+from __future__ import annotations
+
+import base64
+import copy
+
+import pytest
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+
+from aios_baseline.authorization import (
+    AuthorizationError,
+    AuthorizationService,
+    sign_owner_delegation_grant,
+)
+from aios_baseline.operations import OperationDefinition
+
+
+class Clock:
+    def __init__(self, value: int = 2_000_000_000) -> None:
+        self.value = value
+
+    def __call__(self) -> int:
+        return self.value
+
+
+def grant(
+    owner_key: Ed25519PrivateKey,
+    clock: Clock,
+    *,
+    grant_id: str = "grant-0001",
+    generation: int = 1,
+    tenant_id: str = "tenant-a",
+    subject_id: str = "owner-a",
+    task_ids: tuple[str, ...] = ("task-a",),
+    operations: tuple[str, ...] = ("deploy",),
+    expires_at: int | None = None,
+    max_effects: int | None = None,
+    destructive_ceiling: str = "NONE",
+) -> dict:
+    return sign_owner_delegation_grant(
+        owner_key,
+        "owner-key-1",
+        grant_id=grant_id,
+        generation=generation,
+        tenant_id=tenant_id,
+        subject_id=subject_id,
+        mission_ids=("mission-a",),
+        task_ids=task_ids,
+        operations=operations,
+        component_ids=("component-a",),
+        environments=("staging",),
+        issued_at=clock(),
+        validity_mode="EXPIRES_AT" if expires_at is not None else "UNTIL_REVOKED",
+        expires_at=expires_at,
+        max_effects=max_effects,
+        destructive_ceiling=destructive_ceiling,
+    )
+
+
+def service(tmp_path, owner_key: Ed25519PrivateKey, machine_key: Ed25519PrivateKey, clock: Clock, **kwargs):
+    return AuthorizationService(
+        tmp_path / "authorization.sqlite3",
+        {"owner-key-1": owner_key.public_key()},
+        machine_key,
+        "machine-key-1",
+        owner_key_scopes={
+            "owner-key-1": {
+                "tenant_ids": ["tenant-a"],
+                "subject_ids": ["owner-a"],
+            }
+        },
+        clock=clock,
+        **kwargs,
+    )
+
+
+SCOPE = {
+    "tenant_id": "tenant-a",
+    "subject_id": "owner-a",
+    "mission_id": "mission-a",
+    "task_id": "task-a",
+    "operation": "deploy",
+    "component_id": "component-a",
+    "environment": "staging",
+}
+
+
+def test_signed_chain_authorizes_exact_narrowed_scope(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    signed_grant = grant(owner_key, clock)
+
+    registered = auth.register_grant(signed_grant)
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    assert registered == signed_grant
+    assert principal["schema"] == "aios.task-principal.v1"
+    assert principal["operational_epoch"]["schema"] == "aios.operational-epoch.v1"
+    assert principal["payload"]["root_grant_digest"] == auth.grant_digest(signed_grant)
+    assert principal["payload"]["root_grant_generation"] == 1
+    assert isinstance(principal["payload"]["credential_id"], str)
+    assert isinstance(principal["payload"]["nonce"], str)
+    assert auth.authorize(principal, **SCOPE) == signed_grant
+
+
+@pytest.mark.parametrize(
+    ("target", "field", "replacement"),
+    [
+        ("grant", "tenant_id", "tenant-b"),
+        ("epoch", "task_id", "task-b"),
+        ("principal", "operation", "delete"),
+    ],
+)
+def test_any_signature_tampering_is_rejected(tmp_path, target, field, replacement):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    signed_grant = grant(owner_key, clock)
+
+    if target == "grant":
+        tampered = copy.deepcopy(signed_grant)
+        tampered["payload"][field] = replacement
+        with pytest.raises(AuthorizationError, match="signature"):
+            auth.register_grant(tampered)
+        return
+
+    auth.register_grant(signed_grant)
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+    tampered = copy.deepcopy(principal)
+    if target == "epoch":
+        tampered["operational_epoch"]["payload"][field] = replacement
+    else:
+        tampered["payload"][field] = replacement
+    with pytest.raises(AuthorizationError, match="signature|parent"):
+        auth.authorize(tampered, **SCOPE)
+
+
+def test_unknown_owner_key_and_unsigned_grant_are_rejected(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    unknown = grant(owner_key, clock)
+    unknown["signing"]["key_id"] = "attacker-key"
+
+    with pytest.raises(AuthorizationError, match="trusted owner key"):
+        auth.register_grant(unknown)
+    with pytest.raises(AuthorizationError, match="fields"):
+        auth.register_grant(grant(owner_key, clock)["payload"])
+
+
+def test_fake_mapping_parent_and_parent_digest_substitution_are_rejected(tmp_path):
+    class FakeParent(dict):
+        pass
+
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    auth.register_grant(grant(owner_key, clock))
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    fake = copy.deepcopy(principal)
+    fake["operational_epoch"] = FakeParent(fake["operational_epoch"])
+    with pytest.raises(AuthorizationError, match="plain object"):
+        auth.authorize(fake, **SCOPE)
+
+    other = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+    substituted = copy.deepcopy(principal)
+    substituted["operational_epoch"] = other["operational_epoch"]
+    with pytest.raises(AuthorizationError, match="parent|signature"):
+        auth.authorize(substituted, **SCOPE)
+
+
+@pytest.mark.parametrize(
+    ("field", "wrong"),
+    [
+        ("tenant_id", "tenant-b"),
+        ("subject_id", "owner-b"),
+        ("mission_id", "mission-b"),
+        ("task_id", "task-b"),
+        ("operation", "delete"),
+        ("component_id", "component-b"),
+        ("environment", "production"),
+    ],
+)
+def test_authorize_denies_cross_scope_use(tmp_path, field, wrong):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    auth.register_grant(grant(owner_key, clock))
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+    attempted = dict(SCOPE)
+    attempted[field] = wrong
+
+    with pytest.raises(AuthorizationError, match="scope"):
+        auth.authorize(principal, **attempted)
+
+
+def test_principal_issuance_must_narrow_root_scope(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    auth.register_grant(grant(owner_key, clock, task_ids=("task-a", "task-b")))
+
+    denied = dict(SCOPE)
+    denied["task_id"] = "task-c"
+    with pytest.raises(AuthorizationError, match="grant scope"):
+        auth.issue_principal("grant-0001", ttl_seconds=30, **denied)
+
+    narrowed = dict(SCOPE)
+    narrowed["task_id"] = "task-b"
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **narrowed)
+    assert auth.authorize(principal, **narrowed)["payload"]["grant_id"] == "grant-0001"
+
+
+def test_revocation_is_durable_and_checked_during_proof_lifetime(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    trusted_context = object()
+    verifier = lambda value: value is trusted_context
+    auth = service(
+        tmp_path,
+        owner_key,
+        machine_key,
+        clock,
+        control_context_verifier=verifier,
+    )
+    auth.register_grant(grant(owner_key, clock))
+    principal = auth.issue_principal("grant-0001", ttl_seconds=60, **SCOPE)
+
+    with pytest.raises(AuthorizationError, match="trusted control context"):
+        auth.revoke_grant("grant-0001", control_context=object())
+    assert auth.revoke_grant("grant-0001", control_context=trusted_context) == 2
+    with pytest.raises(AuthorizationError, match="generation|revoked"):
+        auth.authorize(principal, **SCOPE)
+
+    restarted = service(
+        tmp_path,
+        owner_key,
+        machine_key,
+        clock,
+        control_context_verifier=verifier,
+    )
+    with pytest.raises(AuthorizationError, match="generation|revoked"):
+        restarted.authorize(principal, **SCOPE)
+
+
+def test_expired_proof_refreshes_without_owner_reapproval_and_survives_restart(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    signed_grant = grant(owner_key, clock)
+    auth.register_grant(signed_grant)
+    expired = auth.issue_principal("grant-0001", ttl_seconds=5, **SCOPE)
+    clock.value += 5
+
+    with pytest.raises(AuthorizationError, match="expired"):
+        auth.authorize(expired, **SCOPE)
+
+    restarted = service(tmp_path, owner_key, machine_key, clock)
+    refreshed = restarted.issue_principal("grant-0001", ttl_seconds=5, **SCOPE)
+    assert refreshed != expired
+    assert restarted.authorize(refreshed, **SCOPE) == signed_grant
+
+
+def test_explicit_grant_expiry_caps_child_lease_and_cannot_be_refreshed(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    auth.register_grant(grant(owner_key, clock, expires_at=clock() + 7))
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    assert principal["payload"]["expires_at"] == clock() + 7
+    assert principal["operational_epoch"]["payload"]["expires_at"] == clock() + 7
+    clock.value += 7
+    with pytest.raises(AuthorizationError, match="expired"):
+        auth.authorize(principal, **SCOPE)
+    with pytest.raises(AuthorizationError, match="expired"):
+        auth.issue_principal("grant-0001", ttl_seconds=5, **SCOPE)
+
+
+def test_higher_owner_signed_generation_reactivates_but_stale_proofs_stay_invalid(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    control = object()
+    auth = service(
+        tmp_path,
+        owner_key,
+        machine_key,
+        clock,
+        control_context_verifier=lambda value: value is control,
+    )
+    auth.register_grant(grant(owner_key, clock))
+    old = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+    auth.revoke_grant("grant-0001", control_context=control)
+
+    new_grant = grant(owner_key, clock, generation=3)
+    auth.register_grant(new_grant)
+    fresh = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+    with pytest.raises(AuthorizationError, match="generation"):
+        auth.authorize(old, **SCOPE)
+    assert auth.authorize(fresh, **SCOPE) == new_grant
+
+
+def test_strict_schema_types_and_signature_encoding(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+
+    malformed = grant(owner_key, clock)
+    malformed["payload"]["generation"] = True
+    with pytest.raises(AuthorizationError, match="generation"):
+        auth.register_grant(malformed)
+
+    malformed = grant(owner_key, clock)
+    malformed["signing"]["signature"] = base64.b64encode(b"short").decode("ascii")
+    with pytest.raises(AuthorizationError, match="signature"):
+        auth.register_grant(malformed)
+
+    with pytest.raises(AuthorizationError, match="ttl_seconds"):
+        auth.register_grant(grant(owner_key, clock))
+        auth.issue_principal("grant-0001", ttl_seconds=True, **SCOPE)
+
+
+def test_grant_helper_requires_an_explicit_validity_mode():
+    owner_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    arguments = {
+        "grant_id": "grant-0001",
+        "generation": 1,
+        "tenant_id": "tenant-a",
+        "subject_id": "owner-a",
+        "mission_ids": ("mission-a",),
+        "task_ids": ("task-a",),
+        "operations": ("deploy",),
+        "component_ids": ("component-a",),
+        "environments": ("staging",),
+        "issued_at": clock(),
+    }
+    with pytest.raises(TypeError):
+        sign_owner_delegation_grant(owner_key, "owner-key-1", **arguments)
+    with pytest.raises(AuthorizationError, match="expires_at"):
+        sign_owner_delegation_grant(
+            owner_key,
+            "owner-key-1",
+            validity_mode="EXPIRES_AT",
+            expires_at=None,
+            **arguments,
+        )
+
+    string_scope = dict(arguments)
+    string_scope["mission_ids"] = "abc"
+    with pytest.raises(AuthorizationError, match="mission_ids.*list or tuple"):
+        sign_owner_delegation_grant(
+            owner_key,
+            "owner-key-1",
+            validity_mode="UNTIL_REVOKED",
+            **string_scope,
+        )
+
+
+def test_effect_budget_reserves_each_stable_effect_id_once_and_persists(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    auth.register_grant(grant(owner_key, clock, max_effects=1))
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    assert auth.reserve_effect("grant-0001", "effect-0001", principal, **SCOPE) is True
+    assert auth.reserve_effect("grant-0001", "effect-0001", principal, **SCOPE) is False
+
+    restarted = service(tmp_path, owner_key, machine_key, clock)
+    with pytest.raises(AuthorizationError, match="effect budget"):
+        restarted.reserve_effect("grant-0001", "effect-0002", principal, **SCOPE)
+
+
+def test_unbounded_grant_leaves_mission_budget_to_caller(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    auth.register_grant(grant(owner_key, clock))
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    assert auth.reserve_effect("grant-0001", "effect-0001", principal, **SCOPE) is True
+    assert auth.reserve_effect("grant-0001", "effect-0002", principal, **SCOPE) is True
+
+
+def test_old_machine_proof_can_be_verified_during_machine_key_rotation(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    old_machine_key = Ed25519PrivateKey.generate()
+    new_machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    original = service(tmp_path, owner_key, old_machine_key, clock)
+    signed_grant = grant(owner_key, clock)
+    original.register_grant(signed_grant)
+    old_principal = original.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    rotated = AuthorizationService(
+        tmp_path / "authorization.sqlite3",
+        {"owner-key-1": owner_key.public_key()},
+        new_machine_key,
+        "machine-key-2",
+        owner_key_scopes={
+            "owner-key-1": {
+                "tenant_ids": ["tenant-a"],
+                "subject_ids": ["owner-a"],
+            }
+        },
+        clock=clock,
+        trusted_machine_public_keys={
+            "machine-key-1": old_machine_key.public_key(),
+            "machine-key-2": new_machine_key.public_key(),
+        },
+    )
+    assert rotated.authorize(old_principal, **SCOPE) == signed_grant
+
+
+def test_revocation_generation_cannot_reset_budget_or_revive_immutable_grant(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    control = object()
+    auth = service(
+        tmp_path,
+        owner_key,
+        machine_key,
+        clock,
+        control_context_verifier=lambda value: value is control,
+    )
+    signed_grant = grant(owner_key, clock, max_effects=1)
+    auth.register_grant(signed_grant)
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+    assert auth.reserve_effect("grant-0001", "effect-0001", principal, **SCOPE) is True
+
+    assert auth.revoke_grant("grant-0001", control_context=control) == 2
+    with pytest.raises(AuthorizationError, match="stale"):
+        auth.register_grant(signed_grant)
+    with pytest.raises(AuthorizationError, match="revoked|generation"):
+        auth.reserve_effect("grant-0001", "effect-0002", principal, **SCOPE)
+    with pytest.raises(AuthorizationError, match="revoked"):
+        auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+
+def test_rejects_nan_empty_identity_and_untrusted_retired_machine_key(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    old_machine_key = Ed25519PrivateKey.generate()
+    new_machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    original = service(tmp_path, owner_key, old_machine_key, clock)
+    signed_grant = grant(owner_key, clock)
+    original.register_grant(signed_grant)
+    old_principal = original.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    malformed = grant(owner_key, clock)
+    malformed["payload"]["issued_at"] = float("nan")
+    with pytest.raises(AuthorizationError, match="issued_at"):
+        original.register_grant(malformed)
+    malformed = grant(owner_key, clock)
+    malformed["payload"]["tenant_id"] = ""
+    with pytest.raises(AuthorizationError, match="tenant_id"):
+        original.register_grant(malformed)
+
+    rotated_without_old_trust = AuthorizationService(
+        tmp_path / "authorization.sqlite3",
+        {"owner-key-1": owner_key.public_key()},
+        new_machine_key,
+        "machine-key-2",
+        owner_key_scopes={
+            "owner-key-1": {
+                "tenant_ids": ["tenant-a"],
+                "subject_ids": ["owner-a"],
+            }
+        },
+        clock=clock,
+    )
+    with pytest.raises(AuthorizationError, match="trusted machine key"):
+        rotated_without_old_trust.authorize(old_principal, **SCOPE)
+
+
+def operation_definition(effect_class: str, *, reversible: bool = False) -> OperationDefinition:
+    return OperationDefinition.from_dict(
+        {
+            "operation_id": "deploy",
+            "version": 1,
+            "effect_class": effect_class,
+            "handler_ref": "trusted.deploy",
+            "input_schema": "aios.deploy.input.v1",
+            "required_permissions": ["deploy"],
+            "timeout_seconds": 10,
+            "readback": {"mode": "EXACT", "required": True},
+            "retry": {"mode": "AFTER_READBACK", "max_attempts": 1},
+            "reconcile": {"mode": "EXACT_READBACK"},
+            "rollback": {"mode": "OPERATION", "operation_id": "deploy.rollback"}
+            if reversible
+            else {"mode": "NONE"},
+            "owner_boundary": {"mode": "WITHIN_GRANT"},
+        }
+    )
+
+
+def test_signed_destructive_ceiling_defaults_none_and_denies_mutating_definition(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    signed_grant = grant(owner_key, clock)
+    assert signed_grant["payload"]["destructive_ceiling"] == "NONE"
+    auth.register_grant(signed_grant)
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    assert auth.assert_effect_bounds(
+        principal, operation_definition("READ_ONLY"), **SCOPE
+    ) == signed_grant
+    with pytest.raises(AuthorizationError, match="destructive ceiling"):
+        auth.assert_effect_bounds(
+            principal, operation_definition("IDEMPOTENT"), **SCOPE
+        )
+
+
+def test_reversible_ceiling_requires_rollback_and_irreversible_ceiling_is_explicit(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    auth.register_grant(grant(owner_key, clock, destructive_ceiling="REVERSIBLE"))
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+
+    with pytest.raises(AuthorizationError, match="rollback"):
+        auth.assert_effect_bounds(
+            principal, operation_definition("RECONCILABLE", reversible=False), **SCOPE
+        )
+    assert auth.assert_effect_bounds(
+        principal, operation_definition("RECONCILABLE", reversible=True), **SCOPE
+    )["payload"]["destructive_ceiling"] == "REVERSIBLE"
+    with pytest.raises(AuthorizationError, match="irreversible"):
+        auth.assert_effect_bounds(
+            principal, operation_definition("IRREVERSIBLE", reversible=False), **SCOPE
+        )
+
+    owner_key_2 = Ed25519PrivateKey.generate()
+    auth_2 = AuthorizationService(
+        tmp_path / "authorization-2.sqlite3",
+        {"owner-key-1": owner_key_2.public_key()},
+        machine_key,
+        "machine-key-1",
+        owner_key_scopes={
+            "owner-key-1": {
+                "tenant_ids": ["tenant-a"],
+                "subject_ids": ["owner-a"],
+            }
+        },
+        clock=clock,
+    )
+    auth_2.register_grant(grant(owner_key_2, clock, destructive_ceiling="IRREVERSIBLE"))
+    principal_2 = auth_2.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+    assert auth_2.assert_effect_bounds(
+        principal_2, operation_definition("IRREVERSIBLE"), **SCOPE
+    )["payload"]["destructive_ceiling"] == "IRREVERSIBLE"
+
+
+def test_destructive_ceiling_is_signed_and_strictly_enumerated(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    tampered = grant(owner_key, clock)
+    tampered["payload"]["destructive_ceiling"] = "IRREVERSIBLE"
+    with pytest.raises(AuthorizationError, match="signature"):
+        auth.register_grant(tampered)
+    with pytest.raises(AuthorizationError, match="destructive_ceiling"):
+        grant(owner_key, clock, destructive_ceiling="UNBOUNDED")
+
+
+def test_owner_key_trust_is_explicitly_bound_to_tenant_and_subject(tmp_path):
+    owner_key = Ed25519PrivateKey.generate()
+    machine_key = Ed25519PrivateKey.generate()
+    clock = Clock()
+
+    with pytest.raises(TypeError, match="owner_key_scopes"):
+        AuthorizationService(
+            tmp_path / "missing-scopes.sqlite3",
+            {"owner-key-1": owner_key.public_key()},
+            machine_key,
+            "machine-key-1",
+            clock=clock,
+        )
+
+    auth = service(tmp_path, owner_key, machine_key, clock)
+    with pytest.raises(AuthorizationError, match="Owner key scope"):
+        auth.register_grant(grant(owner_key, clock, tenant_id="tenant-b"))
+    with pytest.raises(AuthorizationError, match="Owner key scope"):
+        auth.register_grant(grant(owner_key, clock, subject_id="owner-b"))
+
+    auth.register_grant(grant(owner_key, clock))
+    principal = auth.issue_principal("grant-0001", ttl_seconds=30, **SCOPE)
+    reopened_with_narrower_trust = AuthorizationService(
+        tmp_path / "authorization.sqlite3",
+        {"owner-key-1": owner_key.public_key()},
+        machine_key,
+        "machine-key-1",
+        owner_key_scopes={
+            "owner-key-1": {
+                "tenant_ids": ["tenant-a"],
+                "subject_ids": ["owner-b"],
+            }
+        },
+        clock=clock,
+    )
+    with pytest.raises(AuthorizationError, match="Owner key scope"):
+        reopened_with_narrower_trust.authorize(principal, **SCOPE)
+
+    globally_scoped = AuthorizationService(
+        tmp_path / "explicit-global.sqlite3",
+        {"owner-key-1": owner_key.public_key()},
+        machine_key,
+        "machine-key-1",
+        owner_key_scopes={
+            "owner-key-1": {"tenant_ids": ["*"], "subject_ids": ["*"]}
+        },
+        clock=clock,
+    )
+    assert globally_scoped.register_grant(
+        grant(owner_key, clock, tenant_id="tenant-b", subject_id="owner-b")
+    )["payload"]["tenant_id"] == "tenant-b"
+
+
+@pytest.mark.parametrize(
+    "scopes",
+    [
+        {},
+        {"owner-key-1": {"tenant_ids": ["tenant-a"]}},
+        {
+            "owner-key-1": {
+                "tenant_ids": ["*", "tenant-a"],
+                "subject_ids": ["owner-a"],
+            }
+        },
+        {
+            "owner-key-1": {
+                "tenant_ids": ["tenant-a"],
+                "subject_ids": [],
+            }
+        },
+    ],
+)
+def test_owner_key_scope_configuration_is_exact_and_fail_closed(tmp_path, scopes):
+    with pytest.raises(AuthorizationError, match="owner_key_scopes"):
+        AuthorizationService(
+            tmp_path / "authorization.sqlite3",
+            {"owner-key-1": Ed25519PrivateKey.generate().public_key()},
+            Ed25519PrivateKey.generate(),
+            "machine-key-1",
+            owner_key_scopes=scopes,
+        )

tests/baseline_v1_1/test_claim_heartbeat.py

@@ -0,0 +1,73 @@
+from __future__ import annotations
+
+from unittest import mock
+
+import pytest
+
+from task_plane.api import TaskPlaneService
+from task_plane.errors import ConflictError, LockedError
+from task_plane.policy import ALL_ACTION_CAPABILITIES, PolicyEngine
+from task_plane.store import TaskPlaneStore
+
+
+IDENTITY = "spiffe://aios/agent/heartbeat"
+WORKER_ID = "heartbeat-worker"
+
+
+def claimed_task():
+    store = TaskPlaneStore(":memory:")
+    service = TaskPlaneService(
+        store,
+        policy=PolicyEngine(
+            execution_enabled=True,
+            identity_capabilities={"*": set(ALL_ACTION_CAPABILITIES)},
+        ),
+    )
+    service.register_worker(
+        {
+            "worker_id": WORKER_ID,
+            "worker_type": "test",
+            "identity": IDENTITY,
+            "capabilities": ["code.read"],
+            "trust_zone": "test",
+            "max_concurrency": 1,
+            "heartbeat_interval_seconds": 15,
+            "supported_protocols": ["aios-task-v1"],
+        }
+    )
+    task = service.create_task(
+        {"task_id": "task-heartbeat", "required_capabilities": ["code.read"]}
+    )
+    claim = service.claim(
+        task["task_id"],
+        {
+            "worker_id": WORKER_ID,
+            "actor_identity": IDENTITY,
+            "lease_seconds": 30,
+        },
+    )
+    return store, task, claim
+
+
+def test_cancelled_task_cannot_renew_a_still_active_claim():
+    store, task, claim = claimed_task()
+    original_lease = store.get_claim(claim["claim_id"]).lease_until
+    current = store.get_task(task["task_id"])
+    store.cancel_task_with_event(task["task_id"], current.revision, "owner cancelled")
+
+    with pytest.raises(ConflictError, match="task is terminal"):
+        store.heartbeat_claim(task["task_id"], claim["claim_id"], 60)
+
+    assert store.get_claim(claim["claim_id"]).lease_until == original_lease
+    assert store.get_task(task["task_id"]).status == "CANCELLED"
+
+
+def test_lease_at_current_time_is_expired_and_cannot_be_renewed():
+    store, task, claim = claimed_task()
+    boundary = store.get_claim(claim["claim_id"]).lease_until
+
+    with mock.patch("task_plane.store._now", return_value=boundary):
+        with pytest.raises(LockedError, match="lease expired"):
+            store.heartbeat_claim(task["task_id"], claim["claim_id"], 30)
+
+    assert store.get_claim(claim["claim_id"]).lease_until == boundary

tests/baseline_v1_1/test_cli.py

@@ -0,0 +1,43 @@
+import json
+from pathlib import Path
+import pytest
+from aios_baseline.cli import initialize_validation, load_configuration, build_service
+
+
+def test_generated_validation_configuration_is_usable_and_not_production(tmp_path):
+    root=tmp_path/'validation'
+    initialize_validation(root,unit='sample.service')
+    config,tokens=load_configuration(root/'server.json')
+    assert config['profile']=='isolated-validation'
+    assert len(tokens)==2
+    assert not (root/'state').exists()  # preflight is read only
+    service=build_service(config)
+    assert service.jobs.store is not None
+    assert (root/'owner-private.pem').stat().st_mode & 0o077 == 0
+    raw=json.loads((root/'server.json').read_text())
+    raw['profile']='production'
+    (root/'server.json').write_text(json.dumps(raw))
+    with pytest.raises(ValueError,match='PROFILE'): load_configuration(root/'server.json')
+
+
+def test_config_cannot_register_duplicate_tokens_or_expand_secret_variables(tmp_path,monkeypatch):
+    root=tmp_path/'validation'
+    initialize_validation(root,unit='sample.service')
+    raw=json.loads((root/'server.json').read_text())
+    raw['identities'][1]['token_file']=raw['identities'][0]['token_file']
+    (root/'server.json').write_text(json.dumps(raw))
+    with pytest.raises(ValueError,match='TOKEN'): load_configuration(root/'server.json')
+    raw['identities'][1]['token_file']='$HOME/token'
+    (root/'server.json').write_text(json.dumps(raw))
+    with pytest.raises(ValueError,match='PATH'): load_configuration(root/'server.json')
+
+
+def test_config_rejects_symlink_public_config_and_untrusted_state_marker(tmp_path):
+    root=tmp_path/'validation'
+    initialize_validation(root,unit='sample.service')
+    alias=tmp_path/'alias.json';alias.symlink_to(root/'server.json')
+    with pytest.raises(OSError): load_configuration(alias)
+    config,_=load_configuration(root/'server.json')
+    state=root/'state';state.mkdir(mode=0o700)
+    (state/'ISOLATED_VALIDATION_AUTHORITY').write_text('different-authority\n')
+    with pytest.raises(ValueError,match='MARKER'): build_service(config)

tests/baseline_v1_1/test_contracts.py

@@ -0,0 +1,460 @@
+from __future__ import annotations
+
+from copy import deepcopy
+from datetime import datetime, timezone
+
+import pytest
+
+from aios_baseline.operations import (
+    OperationDefinition,
+    OperationRegistry,
+    operation_timeout_action,
+    verify_service_restart,
+)
+from aios_baseline.runtime_contract import evaluate_deployment, validate_contract
+from aios_chatgpt_bridge_v2_server import (
+    GovernedRuntime,
+    RuntimeConfig,
+    load_production_observation,
+)
+from reconciliation_controller import ReconciliationController
+
+
+NOW = datetime(2026, 9, 7, 12, 0, tzinfo=timezone.utc)
+DIGEST = "sha256:" + "a" * 64
+SOURCE_DIGEST = "sha256:" + "b" * 64
+BUILDER_DIGEST = "sha256:" + "c" * 64
+
+
+def runtime_contract() -> dict:
+    return {
+        "contract_schema": "aios.runtime-contract.v1",
+        "contract_revision": 3,
+        "component_id": "task-plane",
+        "environment": "staging",
+        "tenant_scope": "tenant-a",
+        "lifecycle": "active",
+        "entrypoints": {
+            "task_api": {
+                "component_id": "task-plane",
+                "environment": "staging",
+                "resolver_ref": "service://task-plane/task-api",
+            }
+        },
+        "bindings": {
+            "service": {
+                "component_id": "task-plane",
+                "environment": "staging",
+                "resolver_ref": "service://task-plane/worker",
+            }
+        },
+        "resource_refs": {
+            "state_root": {
+                "component_id": "task-plane",
+                "environment": "staging",
+                "path_ref": "runtime/state/task-plane",
+            }
+        },
+        "credential_refs": {
+            "task_api": {
+                "component_id": "task-plane",
+                "environment": "staging",
+                "credential_ref": "systemd-credential:task-plane-api",
+            }
+        },
+        "operations": ["host.status.v1", "task.claim.v1"],
+    }
+
+
+def deployment_target() -> dict:
+    return {
+        "component_id": "task-plane",
+        "environment": "staging",
+        "release_id": "release-17",
+        "deployment_id": "deployment-22",
+        "artifact_digest": DIGEST,
+        "revision": 4,
+    }
+
+
+def observation() -> dict:
+    return {
+        "component_id": "task-plane",
+        "environment": "staging",
+        "deployment_id": "deployment-22",
+        "observed_at": "2026-09-07T11:59:30Z",
+        "max_age_seconds": 60,
+        "source": "systemd-readback.v1",
+        "actual_artifact_digest": DIGEST,
+        "revision": 4,
+        "healthy": True,
+    }
+
+
+def provenance() -> dict:
+    return {
+        "artifact_digest": DIGEST,
+        "source_digest": SOURCE_DIGEST,
+        "builder_digest": BUILDER_DIGEST,
+    }
+
+
+def operation(**updates: object) -> dict:
+    data = {
+        "operation_id": "service.restart.v1",
+        "version": 1,
+        "effect_class": "RECONCILABLE",
+        "handler_ref": "host.service_restart",
+        "input_schema": "aios.operation.service-restart.input.v1",
+        "required_permissions": ["host:service:restart"],
+        "timeout_seconds": 30,
+        "readback": {"mode": "EXACT", "required": True},
+        "retry": {"mode": "AFTER_READBACK", "max_attempts": 2},
+        "reconcile": {"mode": "EXACT_READBACK"},
+        "rollback": {"mode": "OPERATION", "operation_id": "service.restore.v1"},
+        "owner_boundary": {"mode": "WITHIN_GRANT"},
+    }
+    data.update(updates)
+    return data
+
+
+def test_structural_contract_is_normalized_without_dynamic_target() -> None:
+    result = validate_contract(runtime_contract())
+    assert result["component_id"] == "task-plane"
+    assert result["contract_revision"] == 3
+    assert result["operations"] == ["host.status.v1", "task.claim.v1"]
+
+
+def test_structural_contract_allows_empty_optional_reference_groups() -> None:
+    document = runtime_contract()
+    document["bindings"] = {}
+    document["resource_refs"] = {}
+    document["credential_refs"] = {}
+    assert validate_contract(document)["credential_refs"] == {}
+
+
+@pytest.mark.parametrize(
+    "field",
+    ["desired", "desired_commit", "desired_release", "desired_target", "desired_targets"],
+)
+def test_structural_contract_rejects_dynamic_desired_fields_at_any_depth(field: str) -> None:
+    document = runtime_contract()
+    document["bindings"]["service"][field] = "must-live-in-release-target"
+    with pytest.raises(ValueError, match="dynamic_field_forbidden"):
+        validate_contract(document)
+
+
+def test_contract_resolver_binding_must_match_component_and_environment() -> None:
+    document = runtime_contract()
+    document["resource_refs"]["state_root"]["environment"] = "production"
+    with pytest.raises(ValueError, match="binding_environment_mismatch"):
+        validate_contract(document)
+
+
+def test_contract_rejects_cross_tenant_resolver_binding() -> None:
+    document = runtime_contract()
+    document["entrypoints"]["task_api"]["tenant_scope"] = "tenant-b"
+    with pytest.raises(ValueError, match="binding_tenant_mismatch"):
+        validate_contract(document)
+
+
+@pytest.mark.parametrize("path_ref", ["/etc/aios/state", "../other/state", "runtime/../secret", "bad\x00ref"])
+def test_contract_rejects_unsafe_path_references(path_ref: str) -> None:
+    document = runtime_contract()
+    document["resource_refs"]["state_root"]["path_ref"] = path_ref
+    with pytest.raises(ValueError, match="unsafe_path_ref"):
+        validate_contract(document)
+
+
+@pytest.mark.parametrize(
+    "credential_ref",
+    [
+        "/run/credentials/other-service/admin-token",
+        "plain-secret-bytes",
+    ],
+)
+def test_contract_rejects_cross_service_or_inline_credentials(credential_ref: str) -> None:
+    document = runtime_contract()
+    document["credential_refs"]["task_api"]["credential_ref"] = credential_ref
+    with pytest.raises(ValueError, match="credential_ref"):
+        validate_contract(document)
+
+
+def test_contract_rejects_secret_value_fields_even_when_reference_is_present() -> None:
+    document = runtime_contract()
+    document["credential_refs"]["task_api"]["token"] = "secret-bytes"
+    with pytest.raises(ValueError, match="secret_material_forbidden"):
+        validate_contract(document)
+
+
+@pytest.mark.parametrize(
+    ("target", "observed", "proof", "reason"),
+    [
+        (None, observation(), provenance(), "target_missing"),
+        (deployment_target(), None, provenance(), "observation_missing"),
+        (deployment_target(), observation(), None, "provenance_missing"),
+    ],
+)
+def test_missing_evidence_is_unknown(target, observed, proof, reason: str) -> None:
+    result = evaluate_deployment(runtime_contract(), target, observed, proof, NOW)
+    assert result["status"] == "UNKNOWN"
+    assert result["state"] == "UNKNOWN"
+    assert reason in result["reasons"]
+
+
+def test_stale_observation_is_unknown_with_injected_clock() -> None:
+    observed = observation()
+    observed["observed_at"] = "2026-09-07T11:58:59Z"
+    result = evaluate_deployment(runtime_contract(), deployment_target(), observed, provenance(), NOW)
+    assert result["status"] == "UNKNOWN"
+    assert "observation_stale" in result["reasons"]
+
+
+def test_nullable_health_and_wrong_types_are_unknown() -> None:
+    observed = observation()
+    observed["healthy"] = None
+    assert evaluate_deployment(runtime_contract(), deployment_target(), observed, provenance(), NOW)["status"] == "UNKNOWN"
+    observed["healthy"] = "true"
+    result = evaluate_deployment(runtime_contract(), deployment_target(), observed, provenance(), NOW)
+    assert result["status"] == "UNKNOWN"
+    assert "observation_healthy_invalid" in result["reasons"]
+
+
+def test_complete_incompatible_target_is_drift() -> None:
+    target = deployment_target()
+    target["environment"] = "production"
+    observed = observation()
+    observed["environment"] = "production"
+    result = evaluate_deployment(runtime_contract(), target, observed, provenance(), NOW)
+    assert result["status"] == "DRIFT"
+    assert "target_environment_mismatch" in result["reasons"]
+
+
+def test_complete_cross_tenant_target_is_drift() -> None:
+    target = deployment_target()
+    target["tenant_scope"] = "tenant-b"
+    result = evaluate_deployment(runtime_contract(), target, observation(), provenance(), NOW)
+    assert result["status"] == "DRIFT"
+    assert "target_tenant_scope_mismatch" in result["reasons"]
+
+
+def test_complete_cross_tenant_observation_is_drift_without_target_tenant_field() -> None:
+    observed = observation()
+    observed["tenant_scope"] = "tenant-b"
+    result = evaluate_deployment(runtime_contract(), deployment_target(), observed, provenance(), NOW)
+    assert result["status"] == "DRIFT"
+    assert "observation_tenant_scope_mismatch" in result["reasons"]
+
+
+def test_artifact_mismatch_is_drift_only_when_evidence_is_complete() -> None:
+    observed = observation()
+    observed["actual_artifact_digest"] = "sha256:" + "d" * 64
+    result = evaluate_deployment(runtime_contract(), deployment_target(), observed, provenance(), NOW)
+    assert result["status"] == "DRIFT"
+    assert "artifact_mismatch" in result["reasons"]
+
+
+def test_matching_bindings_are_verified_and_converged_despite_unrelated_main_head() -> None:
+    observed = observation()
+    observed["main_head"] = "different-from-release-source"
+    result = evaluate_deployment(runtime_contract(), deployment_target(), observed, provenance(), NOW)
+    assert result["status"] == "VERIFIED"
+    assert result["state"] == "CONVERGED"
+    assert result["verification"] == "VERIFIED"
+    assert result["converged"] is True
+
+
+def test_operation_definition_keeps_effect_and_safety_policies_orthogonal() -> None:
+    definition = OperationDefinition.from_dict(operation())
+    assert definition.effect_class == "RECONCILABLE"
+    assert definition.retry["mode"] == "AFTER_READBACK"
+    assert definition.rollback["mode"] == "OPERATION"
+    assert definition.owner_boundary["mode"] == "WITHIN_GRANT"
+
+
+def test_read_only_definition_accepts_permissions_alias_and_registry_lists_definitions() -> None:
+    data = {
+        "operation_id": "service.status.v1",
+        "version": 1,
+        "effect_class": "READ_ONLY",
+        "handler_ref": "host.service_status",
+        "input_schema": "aios.operation.service-status.input.v1",
+        "permissions": ["service-status"],
+        "timeout_seconds": 10,
+        "readback": {"mode": "NONE", "required": False},
+        "retry": {"mode": "SAFE", "max_attempts": 2},
+        "reconcile": {"mode": "NONE"},
+        "rollback": {"mode": "NONE"},
+        "owner_boundary": {"mode": "WITHIN_GRANT"},
+    }
+    definition = OperationDefinition.from_dict(data)
+    registry = OperationRegistry([definition])
+    assert definition.required_permissions == ("service-status",)
+    assert definition.permissions == ("service-status",)
+    assert registry.definitions == (definition,)
+
+
+@pytest.mark.parametrize("effect_class", ["READ_ONLY", "IDEMPOTENT", "CONDITIONAL", "RECONCILABLE", "IRREVERSIBLE"])
+def test_registry_accepts_all_primary_effect_classes(effect_class: str) -> None:
+    data = operation(
+        operation_id=f"effect.{effect_class.lower()}.v1",
+        effect_class=effect_class,
+        retry={"mode": "NEVER", "max_attempts": 1},
+        rollback={"mode": "NONE"},
+    )
+    if effect_class == "IRREVERSIBLE":
+        data["owner_boundary"] = {"mode": "EXPLICIT_AUTHORIZATION"}
+    definition = OperationDefinition.from_dict(data)
+    registry = OperationRegistry([definition])
+    assert registry.get(data["operation_id"]) is definition
+
+
+@pytest.mark.parametrize("forbidden", ["command", "shell", "argv", "executable", "script"])
+def test_registry_definitions_cannot_embed_arbitrary_execution(forbidden: str) -> None:
+    data = operation()
+    data[forbidden] = "sh -c whoami"
+    with pytest.raises(ValueError, match="arbitrary_execution_forbidden"):
+        OperationDefinition.from_dict(data)
+
+
+def test_registry_rejects_duplicate_operation_ids() -> None:
+    definition = OperationDefinition.from_dict(operation())
+    with pytest.raises(ValueError, match="duplicate_operation_id"):
+        OperationRegistry([definition, definition])
+
+
+def test_timeout_never_blindly_retries_irreversible_or_ambiguous_effects() -> None:
+    irreversible = OperationDefinition.from_dict(
+        operation(
+            effect_class="IRREVERSIBLE",
+            retry={"mode": "SAFE", "max_attempts": 4},
+            rollback={"mode": "NONE"},
+            owner_boundary={"mode": "EXPLICIT_AUTHORIZATION"},
+        )
+    )
+    assert operation_timeout_action(irreversible, outcome="NOT_OBSERVED") == "STOP"
+    assert operation_timeout_action(OperationDefinition.from_dict(operation()), outcome="AMBIGUOUS") == "RECONCILE"
+
+
+def test_service_active_state_alone_cannot_prove_a_restart() -> None:
+    result = verify_service_restart(
+        {"active": True, "instance_id": "before", "started_at": "2026-09-07T11:00:00Z"},
+        {"active": True},
+    )
+    assert result["status"] == "UNKNOWN"
+    assert "restart_identity_missing" in result["reasons"]
+
+
+def test_service_restart_is_verified_by_changed_instance_and_fresh_start_time() -> None:
+    result = verify_service_restart(
+        {"active": True, "instance_id": "before", "started_at": "2026-09-07T11:00:00Z"},
+        {"active": True, "instance_id": "after", "started_at": "2026-09-07T11:59:00Z"},
+    )
+    assert result == {"status": "VERIFIED", "reasons": []}
+
+
+def production_observation_bundle() -> dict:
+    contract = runtime_contract()
+    contract["environment"] = "production"
+    for group in ("entrypoints", "bindings", "resource_refs", "credential_refs"):
+        for binding in contract[group].values():
+            binding["environment"] = "production"
+    target = deployment_target()
+    target.update(
+        environment="production",
+        release_id="V2R1C9",
+        target_oid="d" * 40,
+    )
+    observed = observation()
+    observed.update(environment="production", observed_at="2026-09-07T11:59:45Z")
+    return {
+        "contract": contract,
+        "target": target,
+        "observation": observed,
+        "provenance": provenance(),
+    }
+
+
+def test_missing_production_observation_is_unknown(tmp_path) -> None:
+    assert load_production_observation(tmp_path / "missing.json", NOW) == {
+        "baseline_version": None,
+        "target_oid": None,
+        "deployment_state": "UNKNOWN",
+    }
+
+
+def test_stale_production_observation_cannot_claim_active(tmp_path) -> None:
+    bundle = production_observation_bundle()
+    bundle["observation"]["observed_at"] = "2026-09-07T11:50:00Z"
+    path = tmp_path / "production-observation.json"
+    path.write_text(__import__("json").dumps(bundle), encoding="utf-8")
+    assert load_production_observation(path, NOW)["deployment_state"] == "UNKNOWN"
+
+
+def test_verified_production_observation_projects_compatible_snapshot_fields(tmp_path) -> None:
+    path = tmp_path / "production-observation.json"
+    path.write_text(__import__("json").dumps(production_observation_bundle()), encoding="utf-8")
+    assert load_production_observation(path, NOW) == {
+        "baseline_version": "V2R1C9",
+        "target_oid": "d" * 40,
+        "deployment_state": "ACTIVE",
+    }
+
+
+def test_bridge_snapshot_defaults_production_to_unknown(tmp_path) -> None:
+    runtime = object.__new__(GovernedRuntime)
+    runtime.config = RuntimeConfig(
+        target_oid="e" * 40,
+        authoritative_git_dir=tmp_path / "repo.git",
+        state_root=tmp_path,
+        v2_job_root=tmp_path / "jobs",
+        token_path=tmp_path / "token",
+        ssh_key_path=tmp_path / "ssh",
+    )
+    runtime.authority = type("Authority", (), {"read_ref": lambda self, ref: "f" * 40})()
+    runtime._snapshot_task = lambda: {}
+    runtime.runtime_status = lambda: {
+        "bridge_schema_version": "aios.chatgpt-gitops-bridge.v2",
+        "control_plane_release_version": "V2R2C1",
+        "runtime_release_commit": "e" * 40,
+        "runtime_path": str(tmp_path),
+        "artifact_sha256": None,
+        "drift_status": "PASS",
+        "governed_writes_enabled": False,
+    }
+    assert runtime.snapshot()["production"] == {
+        "baseline_version": None,
+        "target_oid": None,
+        "deployment_state": "UNKNOWN",
+    }
+
+
+def test_staging_unit_uses_its_own_encrypted_credential_projection() -> None:
+    unit = (
+        __import__("pathlib").Path(__file__).resolve().parents[2]
+        / "deploy/systemd/aios-chatgpt-bridge-v2-staging.service"
+    ).read_text(encoding="utf-8")
+    assert "LoadCredentialEncrypted=gitea-governance-executor-token:/etc/credstore.encrypted/gitea-governance-executor-token" in unit
+    assert "Environment=AIOS_GITEA_TOKEN_FILE=%d/gitea-governance-executor-token" in unit
+    assert "/run/credentials/aios-governance-executor.service/" not in unit
+
+
+def test_empty_or_nullable_reconciliation_evidence_is_not_healthy() -> None:
+    controller = ReconciliationController()
+    empty = controller.reconcile({})
+    assert empty.healthy is False
+    assert set(empty.drift) == {label for _, _, label in controller.CHECKS}
+
+    nullable = controller.reconcile(
+        {
+            key: None
+            for pair in controller.CHECKS
+            for key in pair[:2]
+        }
+    )
+    assert nullable.healthy is False
+
+
+def test_body_claiming_production_state_is_not_blanket_truth() -> None:
+    report = ReconciliationController().reconcile({"body": {"production_state": "ACTIVE"}})
+    assert report.healthy is False

tests/baseline_v1_1/test_job_safety.py

@@ -0,0 +1,582 @@
+from __future__ import annotations
+
+import base64
+from datetime import datetime, timedelta, timezone
+import hashlib
+import json
+import os
+from pathlib import Path
+import subprocess
+import sys
+import textwrap
+
+import pytest
+from cryptography.exceptions import InvalidSignature
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+
+import aios_gitops_job_executor as executor_module
+from aios_gitops_job_controller import (
+    GitOpsJobController,
+    JobError,
+    JobState,
+    JobStore,
+    ServiceUnavailable,
+)
+
+
+OLD = "bba675fab3b7e0c5fba7066720252b3c91b9f20d"
+NEW = "3fbbc18fb2131bbbd9e511004a59ee95cf3e86b7"
+
+
+class Clock:
+    def __init__(self) -> None:
+        self.value = datetime(2026, 9, 8, tzinfo=timezone.utc)
+
+    def __call__(self) -> datetime:
+        return self.value
+
+
+class Authority:
+    def __init__(self) -> None:
+        self.branch = OLD
+        self.main = OLD
+        self.mutations = 0
+
+    def read_ref(self, ref: str):
+        return self.main if ref == "refs/heads/main" else self.branch
+
+    def ancestry_check(self, older: str, newer: str) -> bool:
+        return older == newer or (older, newer) == (OLD, NEW)
+
+    def advance_task_branch_CAS(self, _branch: str, expected: str, new: str) -> str:
+        assert self.branch == expected
+        self.mutations += 1
+        self.branch = new
+        return new
+
+    def ff_CAS_main_after_verified_protected_merge(self, expected: str, new: str) -> str:
+        assert self.main == expected
+        self.mutations += 1
+        self.main = new
+        return new
+
+    def commit_file_in_isolated_worktree(self, **_kwargs) -> str:
+        self.mutations += 1
+        return NEW
+
+
+class Broker:
+    def __init__(self) -> None:
+        self.remote = OLD
+        self.mutations = 0
+
+    def verify_identity(self):
+        return {"login": "aios-autonomy-agent", "repository": executor_module.REPOSITORY}
+
+    def readback(self):
+        return self.remote
+
+    def push_branch(self, new: str) -> str:
+        self.mutations += 1
+        self.remote = new
+        return new
+
+    def create_pr(self, *_args):
+        self.mutations += 1
+        return {"number": 1}
+
+    def status(self, *_args):
+        self.mutations += 1
+        return {"status": "success"}
+
+    def merge(self, *_args):
+        self.mutations += 1
+        return {"merged": True}
+
+
+def campaign_request(operation: str = "SYNC_TASK_BRANCH_TO_GITEA", **updates):
+    request = {
+        "campaign_id": executor_module.CAMPAIGN_ID,
+        "repository": executor_module.REPOSITORY,
+        "operation": operation,
+        "branch": executor_module.BRANCH,
+        "expected_branch_oid": OLD if operation == "ADVANCE_EXISTING_CAMPAIGN_BRANCH" else NEW,
+        "payload_digest": "0" * 64,
+        "task_id": executor_module.TASK_ID,
+        "new_branch_oid": NEW,
+        "authorization_recovery_digest": executor_module.AUTHORIZATION_DIGEST,
+    }
+    if operation == "RECONCILE_AUTHORITY_MAIN":
+        request["expected_main_oid"] = OLD
+    request.update(updates)
+    return request
+
+
+def recovery():
+    return {
+        "digest": executor_module.AUTHORIZATION_DIGEST,
+        "campaign_id": executor_module.CAMPAIGN_ID,
+        "task_id": executor_module.TASK_ID,
+        "repository": executor_module.REPOSITORY,
+        "branch": executor_module.BRANCH,
+        "expected_branch_oid": OLD,
+    }
+
+
+def generic_request(**updates):
+    request = {
+        "schema": "aios.operation-job.v1",
+        "tenant_id": "tenant-a",
+        "subject_id": "subject-a",
+        "mission_id": "mission-a",
+        "grant_id": "grant-a",
+        "task_id": "task-a",
+        "effect_id": "effect-a",
+        "operation": "host.status.v1",
+        "operation_version": "1",
+        "resource_kind": "host",
+        "resource_id": "tenant-a/staging/local-host",
+        "input_digest": hashlib.sha256(b"{}").hexdigest(),
+    }
+    request.update(updates)
+    return request
+
+
+def receipt_signer():
+    private = Ed25519PrivateKey.generate()
+
+    def sign(payload):
+        raw = json.dumps(payload, sort_keys=True, separators=(",", ":")).encode()
+        return {
+            "schema": "aios.operation-receipt.v1",
+            "key_id": "test-machine",
+            "payload": payload,
+            "signature": base64.b64encode(private.sign(raw)).decode(),
+        }
+
+    def verify(envelope):
+        try:
+            raw = json.dumps(envelope["payload"], sort_keys=True, separators=(",", ":")).encode()
+            private.public_key().verify(base64.b64decode(envelope["signature"], validate=True), raw)
+            return envelope.get("key_id") == "test-machine"
+        except (InvalidSignature, KeyError, TypeError, ValueError):
+            return False
+
+    return sign, verify
+
+
+def signed_generic_receipt(sign, request, job_id, lease):
+    return sign({
+        **{key: request[key] for key in (
+            "tenant_id", "subject_id", "mission_id", "grant_id", "task_id",
+            "effect_id", "operation", "operation_version", "resource_kind",
+            "resource_id", "input_digest",
+        )},
+        "job_id": job_id,
+        "claim_id": lease["lease_id"],
+        "generation": int(lease["generation"]),
+        "observation": {"active": True},
+        "verified": True,
+    })
+
+
+def make_executor(tmp_path: Path, monkeypatch, operation="SYNC_TASK_BRANCH_TO_GITEA"):
+    monkeypatch.setattr(executor_module, "load_recovered_authorization", lambda _path: recovery())
+    clock = Clock()
+    controller = GitOpsJobController(JobStore(tmp_path / "jobs"), clock=clock)
+    job = controller.submit(campaign_request(operation))
+    authority, broker = Authority(), Broker()
+    if operation != "ADVANCE_EXISTING_CAMPAIGN_BRANCH":
+        authority.branch = NEW
+    executor = executor_module.DurableJobExecutor(
+        controller, authority, broker, tmp_path / "recovery.json", clock=clock
+    )
+    return clock, controller, job, authority, broker, executor
+
+
+def test_lease_requires_authorized_live_job_and_bounded_future_deadline(tmp_path):
+    clock = Clock()
+    controller = GitOpsJobController(JobStore(tmp_path / "jobs"), clock=clock)
+    job = controller.submit(campaign_request("ADVANCE_EXISTING_CAMPAIGN_BRANCH"))
+    kwargs = dict(
+        lease_id="lease-1",
+        lineage_anchor_oid=OLD,
+        current_head_oid=OLD,
+        generation=1,
+        expected_revision=job.revision,
+    )
+    with pytest.raises(JobError, match="LEASE_JOB_STATE_INVALID"):
+        controller.lease_job(job.job_id, lease_expires_at=(clock.value + timedelta(seconds=30)).isoformat(), **kwargs)
+    authorized = controller.advance(job.job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED")
+    kwargs["expected_revision"] = authorized.revision
+    with pytest.raises(JobError, match="LEASE_EXPIRED"):
+        controller.lease_job(job.job_id, lease_expires_at=(clock.value - timedelta(seconds=1)).isoformat(), **kwargs)
+    with pytest.raises(JobError, match="LEASE_DURATION_EXCEEDED"):
+        controller.lease_job(job.job_id, lease_expires_at=(clock.value + timedelta(hours=1)).isoformat(), **kwargs)
+
+    terminal_controller = GitOpsJobController(JobStore(tmp_path / "terminal"), clock=clock)
+    terminal = terminal_controller.submit(campaign_request("ADVANCE_EXISTING_CAMPAIGN_BRANCH"))
+    terminal = terminal_controller.advance(
+        terminal.job_id,
+        JobState.MANUAL_OWNER_REVIEW_REQUIRED,
+        side_effect_state="MANUAL_OWNER_REVIEW_REQUIRED",
+    )
+    with pytest.raises(JobError, match="LEASE_JOB_STATE_INVALID"):
+        terminal_controller.lease_job(
+            terminal.job_id,
+            lease_expires_at=(clock.value + timedelta(seconds=30)).isoformat(),
+            **{**kwargs, "expected_revision": terminal.revision},
+        )
+
+
+def test_resource_job_profile_and_lease_are_typed_and_fenced(tmp_path):
+    clock = Clock()
+    controller = GitOpsJobController(JobStore(tmp_path / "jobs"), clock=clock)
+    request = {
+        "schema": "aios.operation-job.v1",
+        "tenant_id": "tenant-a",
+        "subject_id": "subject-a",
+        "mission_id": "mission-a",
+        "grant_id": "grant-a",
+        "task_id": "task-a",
+        "effect_id": "effect-a",
+        "operation": "host.status.v1",
+        "operation_version": "1",
+        "resource_kind": "host",
+        "resource_id": "local-host",
+        "input_digest": hashlib.sha256(b"{}").hexdigest(),
+    }
+    submitted = controller.submit(request)
+    authorized = controller.advance(submitted.job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED")
+    leased = controller.lease_resource_job(
+        submitted.job_id,
+        lease_id="resource-lease-1",
+        resource_kind="host",
+        resource_id="local-host",
+        generation=None,
+        lease_expires_at=(clock.value + timedelta(seconds=30)).isoformat(),
+        expected_revision=authorized.revision,
+    )
+    assert leased.state is JobState.LEASED
+    first_lease = controller.get_execution_lease(submitted.job_id)
+    assert first_lease["generation"] == 1
+    controller.assert_execution_lease(submitted.job_id, lease_id="resource-lease-1", generation=1)
+    with pytest.raises(JobError, match="LEASE_FENCE_REJECTED"):
+        controller.assert_execution_lease(submitted.job_id, lease_id="resource-lease-1", generation=0)
+
+    clock.value += timedelta(seconds=31)
+    second_request = {**request, "task_id": "task-b", "effect_id": "effect-b"}
+    second = controller.submit(second_request)
+    second = controller.advance(second.job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED")
+    controller.lease_resource_job(
+        second.job_id,
+        lease_id="resource-lease-2",
+        resource_kind="host",
+        resource_id="local-host",
+        generation=None,
+        lease_expires_at=(clock.value + timedelta(seconds=30)).isoformat(),
+        expected_revision=second.revision,
+    )
+    assert controller.get_execution_lease(second.job_id)["generation"] == 2
+    with pytest.raises(JobError, match="LEASE_FENCE_REJECTED"):
+        controller.assert_execution_lease(submitted.job_id, lease_id="resource-lease-1", generation=1)
+
+
+def test_generic_job_cannot_skip_intent_readback_or_trusted_receipt(tmp_path):
+    clock = Clock()
+    sign, verify = receipt_signer()
+    controller = GitOpsJobController(
+        JobStore(tmp_path / "jobs"), clock=clock, generic_receipt_verifier=verify
+    )
+    request = generic_request()
+    submitted = controller.submit(request)
+    invented = sign({"verified": True})
+    with pytest.raises(JobError, match="GENERIC_JOB_TRANSITION_INVALID"):
+        controller.advance(
+            submitted.job_id, JobState.COMPLETED,
+            side_effect_state="VERIFIED", receipt=invented,
+        )
+    assert controller.store.read(submitted.job_id)["state"] == JobState.REQUESTED.value
+
+    authorized = controller.advance(
+        submitted.job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED"
+    )
+    leased = controller.lease_resource_job(
+        submitted.job_id, lease_id="claim-a", resource_kind=request["resource_kind"],
+        resource_id=request["resource_id"], generation=None,
+        lease_expires_at=(clock.value + timedelta(seconds=30)).isoformat(),
+        expected_revision=authorized.revision,
+    )
+    controller.advance(
+        submitted.job_id, JobState.EXECUTING,
+        side_effect_state="INTENT_COMMITTED", expected_revision=leased.revision,
+    )
+    lease = controller.get_execution_lease(submitted.job_id)
+    valid_receipt = signed_generic_receipt(sign, request, submitted.job_id, lease)
+    tampered = {**valid_receipt, "payload": {**valid_receipt["payload"], "input_digest": "f" * 64}}
+    with pytest.raises(JobError, match="GENERIC_RECEIPT_BINDING_MISMATCH"):
+        controller.advance(
+            submitted.job_id, JobState.LOCAL_VERIFIED,
+            side_effect_state="READBACK_VERIFIED", receipt=tampered,
+        )
+    local = controller.advance(
+        submitted.job_id, JobState.LOCAL_VERIFIED,
+        side_effect_state="READBACK_VERIFIED", receipt=valid_receipt,
+    )
+    completed = controller.advance(
+        submitted.job_id, JobState.COMPLETED,
+        side_effect_state="READBACK_VERIFIED", receipt=valid_receipt,
+        expected_revision=local.revision,
+    )
+    assert completed.state is JobState.COMPLETED
+
+
+def test_generic_complete_requires_configured_verifier_and_recovery_accepts_bound_receipt(tmp_path):
+    clock = Clock()
+    sign, verify = receipt_signer()
+    request = generic_request()
+    controller = GitOpsJobController(
+        JobStore(tmp_path / "jobs"), clock=clock, generic_receipt_verifier=verify,
+    )
+    submitted = controller.submit(request)
+    authorized = controller.advance(submitted.job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED")
+    leased = controller.lease_resource_job(
+        submitted.job_id, lease_id="claim-a", resource_kind=request["resource_kind"],
+        resource_id=request["resource_id"], generation=None,
+        lease_expires_at=(clock.value + timedelta(seconds=30)).isoformat(),
+        expected_revision=authorized.revision,
+    )
+    executing = controller.advance(
+        submitted.job_id, JobState.EXECUTING,
+        side_effect_state="INTENT_COMMITTED", expected_revision=leased.revision,
+    )
+    receipt = signed_generic_receipt(
+        sign, request, submitted.job_id, controller.get_execution_lease(submitted.job_id)
+    )
+    pending = controller.advance(
+        submitted.job_id, JobState.RECONCILIATION_REQUIRED,
+        side_effect_state="UNKNOWN", expected_revision=executing.revision,
+    )
+    clock.value += timedelta(seconds=31)
+    completed = controller.reconcile(
+        submitted.job_id,
+        lambda _row: {
+            "state": JobState.COMPLETED.value,
+            "side_effect_state": "READBACK_VERIFIED",
+            "receipt": receipt,
+        },
+    )
+    assert completed.state is JobState.COMPLETED
+
+    untrusted = GitOpsJobController(JobStore(tmp_path / "untrusted"), clock=Clock())
+    other_request = generic_request(effect_id="effect-b", task_id="task-b")
+    other = untrusted.submit(other_request)
+    other = untrusted.advance(other.job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED")
+    other = untrusted.lease_resource_job(
+        other.job_id, lease_id="claim-b", resource_kind=other_request["resource_kind"],
+        resource_id=other_request["resource_id"], generation=None,
+        lease_expires_at=(Clock().value + timedelta(seconds=30)).isoformat(),
+        expected_revision=other.revision,
+    )
+    untrusted.advance(other.job_id, JobState.EXECUTING, side_effect_state="INTENT_COMMITTED")
+    other_receipt = signed_generic_receipt(
+        sign, other_request, other.job_id, untrusted.get_execution_lease(other.job_id)
+    )
+    with pytest.raises(JobError, match="GENERIC_RECEIPT_VERIFIER_REQUIRED"):
+        untrusted.advance(
+            other.job_id, JobState.LOCAL_VERIFIED,
+            side_effect_state="READBACK_VERIFIED", receipt=other_receipt,
+        )
+
+
+def test_reconcile_crash_can_be_taken_over_and_stale_observer_cannot_commit(tmp_path):
+    clock = Clock()
+    controller = GitOpsJobController(
+        JobStore(tmp_path / "jobs"), clock=clock, reconcile_lease_seconds=10
+    )
+    job = controller.submit(campaign_request("ADVANCE_EXISTING_CAMPAIGN_BRANCH"))
+    controller.advance(job.job_id, JobState.RECOVERABLE_FAILURE, side_effect_state="UNKNOWN")
+    with pytest.raises(KeyboardInterrupt):
+        controller.reconcile(job.job_id, lambda _row: (_ for _ in ()).throw(KeyboardInterrupt()))
+    assert controller.store.read(job.job_id)["state"] == JobState.RECONCILING.value
+    with pytest.raises(JobError, match="RECONCILIATION_CLAIM_ACTIVE"):
+        controller.reconcile(job.job_id, lambda _row: {"state": "REQUESTED"})
+
+    clock.value += timedelta(seconds=11)
+
+    def stale_observer(_row):
+        clock.value += timedelta(seconds=11)
+        winner = controller.reconcile(
+            job.job_id,
+            lambda _new: {"state": "REQUESTED", "side_effect_state": "RECONCILED_ABSENT"},
+        )
+        assert winner.state is JobState.REQUESTED
+        return {"state": "COMPLETED", "side_effect_state": "VERIFIED"}
+
+    with pytest.raises(JobError, match="RECONCILIATION_CLAIM_LOST"):
+        controller.reconcile(job.job_id, stale_observer)
+    assert controller.store.read(job.job_id)["state"] == JobState.REQUESTED.value
+
+
+@pytest.mark.parametrize(
+    "operation",
+    [
+        "ADVANCE_EXISTING_CAMPAIGN_BRANCH",
+        "SYNC_TASK_BRANCH_TO_GITEA",
+        "CREATE_PR",
+        "PUBLISH_CHECK",
+        "PROTECTED_MERGE",
+        "RECONCILE_AUTHORITY_MAIN",
+        "COMMIT_FILE",
+    ],
+)
+def test_dry_run_never_calls_a_mutating_adapter(tmp_path, monkeypatch, operation):
+    _clock, controller, job, authority, broker, executor = make_executor(
+        tmp_path, monkeypatch, operation
+    )
+    if operation == "COMMIT_FILE":
+        payload = b'{"path":"x.txt","content_base64":"eA=="}'
+        controller = GitOpsJobController(JobStore(tmp_path / "commit-jobs"), clock=Clock())
+        job = controller.submit(
+            campaign_request(operation, payload_digest=hashlib.sha256(payload).hexdigest()),
+            payload=payload,
+        )
+        executor = executor_module.DurableJobExecutor(
+            controller, authority, broker, tmp_path / "recovery.json", clock=Clock()
+        )
+    result = executor.execute(job.job_id, dry_run=True)
+    assert result["mode"] == "DRY_RUN"
+    assert authority.mutations == broker.mutations == 0
+    assert controller.store.read(job.job_id)["state"] == JobState.REQUESTED.value
+
+
+def test_execution_does_not_call_effect_when_intent_commit_is_refused(tmp_path, monkeypatch):
+    _clock, controller, job, authority, broker, executor = make_executor(tmp_path, monkeypatch)
+    original = controller.advance
+
+    def refuse(job_id, state, **kwargs):
+        if state is JobState.EXECUTING:
+            raise ServiceUnavailable("JOB_DB_UNAVAILABLE")
+        return original(job_id, state, **kwargs)
+
+    monkeypatch.setattr(controller, "advance", refuse)
+    with pytest.raises(ServiceUnavailable, match="JOB_DB_UNAVAILABLE"):
+        executor.execute(job.job_id)
+    assert authority.mutations == broker.mutations == 0
+    with pytest.raises(executor_module.JobExecutionError, match="PERSISTENCE_FAILURE_LATCHED"):
+        executor.execute(job.job_id)
+
+
+def test_external_success_receipt_failure_latches_then_readback_recovers_without_repeat(tmp_path, monkeypatch):
+    _clock, controller, job, _authority, broker, executor = make_executor(tmp_path, monkeypatch)
+    original = controller.advance
+    fail = {"once": True}
+
+    def refuse_receipt(job_id, state, **kwargs):
+        if state is JobState.COMPLETED and fail["once"]:
+            fail["once"] = False
+            raise ServiceUnavailable("JOB_DB_UNAVAILABLE")
+        return original(job_id, state, **kwargs)
+
+    monkeypatch.setattr(controller, "advance", refuse_receipt)
+    with pytest.raises(ServiceUnavailable, match="JOB_DB_UNAVAILABLE"):
+        executor.execute(job.job_id)
+    assert broker.mutations == 1
+    with pytest.raises(executor_module.JobExecutionError, match="PERSISTENCE_FAILURE_LATCHED"):
+        executor.execute(job.job_id)
+    next_job = controller.submit(campaign_request("CREATE_PR", idempotency_key="after-receipt-failure"))
+    with pytest.raises(executor_module.JobExecutionError, match="PERSISTENCE_FAILURE_LATCHED"):
+        executor.execute(next_job.job_id)
+    assert broker.mutations == 1
+
+    restarted = executor_module.DurableJobExecutor(
+        controller, executor.authority, broker, tmp_path / "recovery.json", clock=executor.clock
+    )
+    with pytest.raises(executor_module.JobExecutionError, match="PERSISTENCE_FAILURE_LATCHED"):
+        restarted.execute(job.job_id)
+
+    recovered = executor.reconcile(job.job_id)
+    assert recovered["state"] == JobState.COMPLETED.value
+    assert broker.mutations == 1
+    assert executor.execute(job.job_id)["state"] == JobState.COMPLETED.value
+
+
+def test_unsupported_exact_readback_reports_unknown_without_fake_success_or_effect(tmp_path, monkeypatch):
+    _clock, controller, job, _authority, broker, executor = make_executor(
+        tmp_path, monkeypatch, "PUBLISH_CHECK"
+    )
+    result = executor.execute(job.job_id)
+    assert result["state"] == JobState.RECONCILIATION_REQUIRED.value
+    assert result["receipt"]["verification"] == "UNKNOWN"
+    assert result["receipt"]["blocker"] == "EXACT_READBACK_UNSUPPORTED"
+    assert broker.mutations == 0
+    again = executor.execute(job.job_id)
+    assert again["state"] == JobState.RECONCILIATION_REQUIRED.value
+    assert broker.mutations == 0
+
+
+def test_subprocess_crash_after_durable_sink_success_recovers_without_repeat(tmp_path):
+    """AT-22: process death after effect durability cannot repeat the effect."""
+    job_root = tmp_path / "jobs"
+    sink = tmp_path / "effect-sink.json"
+    recovery_path = tmp_path / "recovery.json"
+    script = textwrap.dedent(
+        f"""
+        import json, os
+        from pathlib import Path
+        import aios_gitops_job_executor as m
+        from aios_gitops_job_controller import GitOpsJobController, JobStore
+
+        OLD = {OLD!r}; NEW = {NEW!r}
+        sink = Path({str(sink)!r})
+        root = Path({str(job_root)!r})
+        m.load_recovered_authorization = lambda _path: {{
+            'digest': m.AUTHORIZATION_DIGEST, 'campaign_id': m.CAMPAIGN_ID,
+            'task_id': m.TASK_ID, 'repository': m.REPOSITORY,
+            'branch': m.BRANCH, 'expected_branch_oid': OLD,
+        }}
+
+        class Authority:
+            def read_ref(self, _ref): return NEW
+            def ancestry_check(self, older, newer): return older == newer or (older == OLD and newer == NEW)
+
+        class Broker:
+            def verify_identity(self): return {{'login':'aios-autonomy-agent','repository':m.REPOSITORY}}
+            def readback(self):
+                if sink.exists():
+                    if os.environ.get('CRASH_AFTER_EFFECT') == '1': os._exit(77)
+                    return json.loads(sink.read_text())['oid']
+                return OLD
+            def push_branch(self, oid):
+                previous = json.loads(sink.read_text()) if sink.exists() else {{'count': 0}}
+                payload = {{'count': previous['count'] + 1, 'oid': oid}}
+                with sink.open('w') as stream:
+                    json.dump(payload, stream); stream.flush(); os.fsync(stream.fileno())
+                return oid
+
+        controller = GitOpsJobController(JobStore(root))
+        request = {campaign_request()!r}
+        job = controller.submit(request)
+        executor = m.DurableJobExecutor(controller, Authority(), Broker(), Path({str(recovery_path)!r}))
+        if os.environ['ACTION'] == 'execute':
+            executor.execute(job.job_id)
+        else:
+            print(json.dumps(executor.reconcile(job.job_id), sort_keys=True))
+        """
+    )
+    environment = os.environ.copy()
+    environment["PYTHONDONTWRITEBYTECODE"] = "1"
+    environment["ACTION"] = "execute"
+    environment["CRASH_AFTER_EFFECT"] = "1"
+    crashed = subprocess.run([sys.executable, "-c", script], env=environment, check=False)
+    assert crashed.returncode == 77
+    assert json.loads(sink.read_text()) == {"count": 1, "oid": NEW}
+
+    environment["ACTION"] = "recover"
+    environment["CRASH_AFTER_EFFECT"] = "0"
+    recovered = subprocess.run(
+        [sys.executable, "-c", script], env=environment, check=True,
+        capture_output=True, text=True,
+    )
+    assert json.loads(recovered.stdout)["state"] == JobState.COMPLETED.value
+    assert json.loads(sink.read_text()) == {"count": 1, "oid": NEW}

tests/baseline_v1_1/test_loop.py

@@ -0,0 +1,190 @@
+from __future__ import annotations
+import sys
+import time
+from pathlib import Path
+import pytest
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+from task_plane.store import TaskPlaneStore
+from aios_gitops_job_controller import JobStore
+from aios_baseline.authorization import AuthorizationService, sign_owner_delegation_grant
+from aios_baseline.host import SystemdHost
+from aios_baseline.lineage import LineageLedger
+from aios_baseline.operations import OperationRegistry
+from aios_baseline.service import BaselineService, Identity, ServiceError
+from aios_baseline.worker_policy import WorkerProfile
+
+
+def fixture_service(tmp_path):
+    owner = Ed25519PrivateKey.generate()
+    machine = Ed25519PrivateKey.generate()
+    auth = AuthorizationService(tmp_path/'auth.db', {'owner':owner.public_key()}, machine, 'machine',
+        owner_key_scopes={'owner':{'tenant_ids':['tenant-a'],'subject_ids':['user-a']}})
+    auth.register_grant(sign_owner_delegation_grant(owner,'owner',grant_id='grant-a',generation=1,
+        tenant_id='tenant-a',subject_id='user-a',mission_ids=('mission-a',),task_ids=('*',),
+        operations=('service-status',),component_ids=('sample',),environments=('staging',),
+        issued_at=int(time.time())-1,validity_mode='UNTIL_REVOKED',max_effects=10))
+    store=TaskPlaneStore(str(tmp_path/'tasks.db'),high_assurance=True)
+    worker=WorkerProfile.from_dict(dict(worker_id='worker-a',identity='machine-a',tenant_scope=['tenant-a'],
+        subject_scope=['user-a'],capabilities=['service-status'],priority=10,fallback_executor=False,
+        heartbeat_seconds=15,max_concurrency=1))
+    program=tmp_path/'systemctl-fixture'
+    program.write_text('#!'+sys.executable+'\nprint("Id=sample.service\\nActiveState=active\\nSubState=running\\nMainPID=123\\nInvocationID=abc")\n')
+    program.chmod(0o700)
+    host=SystemdHost({'tenant-a:staging:sample':'sample.service'},executable=str(program))
+    operation=dict(operation_id='service-status',version=1,effect_class='READ_ONLY',handler_ref='host.service_status',
+        input_schema='aios.operation.service-status.input.v1',required_permissions=['service-status'],timeout_seconds=10,
+        readback={'mode':'NONE','required':False},retry={'mode':'SAFE','max_attempts':2},
+        reconcile={'mode':'NONE'},rollback={'mode':'NONE'},owner_boundary={'mode':'WITHIN_GRANT'})
+    contract=dict(contract_schema='aios.runtime-contract.v1',contract_revision=1,component_id='sample',
+        environment='staging',tenant_scope='tenant-a',lifecycle='active',
+        entrypoints={'host':{'component_id':'sample','environment':'staging','resolver_ref':'service://sample/status'}},
+        bindings={},resource_refs={},credential_refs={},operations=['service-status'])
+    service=BaselineService(store, tmp_path/'jobs', auth, [contract], OperationRegistry([operation]),
+        {'worker-a':worker},host,LineageLedger(tmp_path/'lineage.db',store,JobStore(tmp_path/'jobs').read),machine)
+    return service
+
+
+USER=Identity('tenant-a','user-a','user')
+WORKER=Identity('tenant-a','machine-a','worker','worker-a')
+REQUEST=dict(mission_id='mission-a',grant_id='grant-a',operation='service-status',component_id='sample',
+             environment='staging',inputs={},intent='检查 staging 服务并形成诊断结果')
+
+
+def test_real_local_task_goes_through_claim_job_receipt_and_lineage(tmp_path):
+    service=fixture_service(tmp_path)
+    created=service.submit_goal(USER,REQUEST,idempotency_key='request-a')
+    duplicate=service.submit_goal(USER,REQUEST,idempotency_key='request-a')
+    assert duplicate['task_id']==created['task_id']
+    service.register_worker(WORKER)
+    claim=service.claim_next(WORKER)
+    assert claim['task_id']==created['task_id']
+    result=service.execute_claim(WORKER,claim['task_id'],claim['claim_id'])
+    assert result['status']=='COMPLETED'
+    assert result['receipt']['observation']['properties']['MainPID']=='123'
+    assert service.get_task(USER,created['task_id'])['status']=='COMPLETED'
+    assert service.explain(USER,'mission-a')['mission_id']=='mission-a'
+    assert service.claim_next(WORKER) is None
+
+
+def test_spoofed_tenant_cross_subject_and_worker_results_are_denied(tmp_path):
+    service=fixture_service(tmp_path)
+    with pytest.raises(ServiceError): service.submit_goal(USER,{**REQUEST,'tenant_id':'tenant-b'},idempotency_key='a')
+    created=service.submit_goal(USER,REQUEST,idempotency_key='a')
+    for outsider in (Identity('tenant-b','user-a','user'),Identity('tenant-a','user-b','user')):
+        with pytest.raises(ServiceError): service.get_task(outsider,created['task_id'])
+        with pytest.raises(ServiceError): service.cancel_task(outsider,created['task_id'])
+    with pytest.raises(ServiceError): service.register_worker(Identity('tenant-b','machine-a','worker','worker-a'))
+    with pytest.raises(ServiceError): service.execute_claim(USER,created['task_id'],'invented')
+
+
+def test_changed_payload_with_same_request_key_cannot_change_task(tmp_path):
+    service=fixture_service(tmp_path)
+    service.submit_goal(USER,REQUEST,idempotency_key='a')
+    with pytest.raises(ServiceError): service.submit_goal(USER,{**REQUEST,'intent':'different goal'},idempotency_key='a')
+
+
+def test_cancelled_expired_claim_is_not_resurrected_by_recovery(tmp_path):
+    service=fixture_service(tmp_path)
+    created=service.submit_goal(USER,REQUEST,idempotency_key='cancel')
+    service.register_worker(WORKER)
+    claim=service.claim_next(WORKER)
+    service.cancel_task(USER,created['task_id'])
+    with service.store._transaction():
+        service.store.conn.execute('UPDATE claims SET lease_until=? WHERE claim_id=?',(time.time()-1,claim['claim_id']))
+    service.recover()
+    assert service.get_task(USER,created['task_id'])['status']=='CANCELLED'
+    assert service.claim_next(WORKER) is None
+
+
+def test_multiple_tasks_share_monotonic_resource_fence_without_sharing_state(tmp_path):
+    service=fixture_service(tmp_path)
+    service.register_worker(WORKER)
+    generations=[]
+    for request_key in ('first','second'):
+        service.submit_goal(USER,REQUEST,idempotency_key=request_key)
+        claim=service.claim_next(WORKER)
+        result=service.execute_claim(WORKER,claim['task_id'],claim['claim_id'])
+        assert result['status']=='COMPLETED'
+        generations.append(result['receipt']['generation'])
+    assert generations==[1,2]
+
+
+def test_persisted_receipt_closes_expired_task_without_repeating_host_diagnostic(tmp_path,monkeypatch):
+    service=fixture_service(tmp_path)
+    service.submit_goal(USER,REQUEST,idempotency_key='recover')
+    service.register_worker(WORKER)
+    claim=service.claim_next(WORKER)
+    original=service._close_task
+    def lose_power(*args): raise OSError('simulated process exit before Task acknowledgment')
+    monkeypatch.setattr(service,'_close_task',lose_power)
+    with pytest.raises(ServiceError): service.execute_claim(WORKER,claim['task_id'],claim['claim_id'])
+    with service.store._transaction():
+        service.store.conn.execute('UPDATE claims SET lease_until=? WHERE claim_id=?',(time.time()-1,claim['claim_id']))
+    monkeypatch.setattr(service,'_close_task',original)
+    def must_not_execute(*args,**kwargs): raise AssertionError('must use durable receipt')
+    monkeypatch.setattr(service.host,'status',must_not_execute)
+    service.recover()
+    assert service.get_task(USER,claim['task_id'])['status']=='COMPLETED'
+
+
+def test_wrong_signed_lineage_cannot_be_attached_to_real_task(tmp_path):
+    service=fixture_service(tmp_path)
+    service.submit_goal(USER,REQUEST,idempotency_key='scope')
+    service.register_worker(WORKER)
+    claim=service.claim_next(WORKER)
+    result=service.execute_claim(WORKER,claim['task_id'],claim['claim_id'])
+    task=service.store.get_task(claim['task_id'])
+    assert service._receipt_valid(task,service.signer.sign(result['receipt']))
+    for field in ('job_id','mission_id','grant_id','claim_id','generation','operation','input_digest','resource_id'):
+        forged=service.signer.sign({**result['receipt'],field:'wrong'})
+        assert not service._receipt_valid(task,forged),field
+
+
+def test_receipt_key_rotation_preserves_old_evidence_only_with_explicit_trust(tmp_path):
+    from aios_baseline.evidence import ReceiptSigner
+    service=fixture_service(tmp_path)
+    service.submit_goal(USER,REQUEST,idempotency_key='rotation')
+    service.register_worker(WORKER)
+    claim=service.claim_next(WORKER)
+    result=service.execute_claim(WORKER,claim['task_id'],claim['claim_id'])
+    old=service.signer
+    envelope=old.sign(result['receipt'])
+    new_key=Ed25519PrivateKey.generate()
+    assert not ReceiptSigner(new_key,key_id='next').verify(envelope)
+    rotated=ReceiptSigner(new_key,key_id='next',trusted_public_keys={old.key_id:old.public_key})
+    service.signer=rotated
+    assert service._receipt_valid(service.store.get_task(claim['task_id']),envelope)
+
+
+def test_fallback_is_normal_worker_eligibility_with_priority_and_same_claim_protocol(tmp_path):
+    service=fixture_service(tmp_path)
+    task=service.submit_goal(USER,REQUEST,idempotency_key='fallback')
+    service.register_worker(WORKER)
+    profile=service.worker_profiles['worker-a']
+    fallback=WorkerProfile.from_dict({**profile.__dict__,'worker_id':'worker-fallback','identity':'machine-fallback',
+        'fallback_executor':True,'priority':100})
+    service.worker_profiles[fallback.worker_id]=fallback
+    identity=Identity('tenant-a','machine-fallback','worker','worker-fallback')
+    service.register_worker(identity)
+    assert service.claim_next(identity) is None
+    with service.store._transaction():
+        service.store.conn.execute('UPDATE baseline_task_runtime SET ready_at=? WHERE task_id=?',(time.time()-601,task['task_id']))
+    assert service.claim_next(WORKER) is None
+    claim=service.claim_next(identity)
+    assert claim['task_id']==task['task_id']
+    assert service.execute_claim(identity,claim['task_id'],claim['claim_id'])['status']=='COMPLETED'
+
+
+def test_deadline_expiring_while_waiting_for_executor_never_starts_host(tmp_path,monkeypatch):
+    service=fixture_service(tmp_path)
+    service.submit_goal(USER,REQUEST,idempotency_key='deadline')
+    service.register_worker(WORKER)
+    claim=service.claim_next(WORKER)
+    def unexpected(*args,**kwargs): raise AssertionError('expired call executed')
+    monkeypatch.setattr(service.host,'status',unexpected)
+    service._execute_lock.acquire()
+    try:
+        with pytest.raises(ServiceError,match='DEADLINE'):
+            service.execute_claim(WORKER,claim['task_id'],claim['claim_id'],deadline=time.time()+0.05)
+    finally: service._execute_lock.release()
+    assert service.get_task(USER,claim['task_id'])['job_id'] is None

tests/baseline_v1_1/test_optimization.py

@@ -0,0 +1,435 @@
+from __future__ import annotations
+
+import base64
+import hashlib
+import json
+from pathlib import Path
+
+import pytest
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+
+from aios_baseline.optimization import (
+    OptimizationController,
+    OptimizationEnvelope,
+    OptimizationError,
+    canonical_json_bytes,
+    validate_proposal,
+)
+
+
+def _signed_envelope(**overrides):
+    private_key = Ed25519PrivateKey.generate()
+    document = {
+        "schema": "aios.optimization-envelope.v1",
+        "envelope_id": "opt-envelope-1",
+        "tenant_id": "tenant-a",
+        "allowed_parameters": {
+            "retry.max_attempts": {"minimum": 1, "maximum": 5, "integer": True},
+            "timeout.operation_seconds": {"minimum": 5, "maximum": 60},
+            "evidence_reuse.max_age_seconds": {
+                "minimum": 0,
+                "maximum": 600,
+                "integer": True,
+            },
+        },
+        "allowed_components": ["task-worker"],
+        "allowed_environments": ["staging"],
+        "max_change_size": 2,
+        "max_compute_budget": 20,
+        "quality_floor": {
+            "success_rate": {"direction": "higher", "threshold": 0.95},
+            "error_rate": {"direction": "lower", "threshold": 0.05},
+        },
+        "rollback_requirement": True,
+        "promotion_rules": {
+            "objective_metric": "success_rate",
+            "minimum_improvement": 0.01,
+            "mandatory_tests": ["test_worker_safety"],
+            "mandatory_quality_gates": ["no_tenant_leak"],
+            "required_receipt_schema": "aios.governed-task-receipt.v1",
+        },
+        "source_config_digest": "sha256:" + "a" * 64,
+        "key_id": "optimization-config-key-1",
+    }
+    document.update(overrides)
+    signature = private_key.sign(canonical_json_bytes(document))
+    document["signature"] = base64.b64encode(signature).decode("ascii")
+
+    def verify(key_id, payload, encoded_signature):
+        assert key_id == "optimization-config-key-1"
+        try:
+            private_key.public_key().verify(base64.b64decode(encoded_signature), payload)
+        except Exception:
+            return False
+        return True
+
+    return document, verify
+
+
+def _envelope():
+    document, verifier = _signed_envelope()
+    return OptimizationEnvelope.from_dict(document, verify_envelope=verifier)
+
+
+def _context(**overrides):
+    value = {
+        "tenant_id": "tenant-a",
+        "subject_id": "optimizer-service",
+        "grant_id": "grant-123",
+        "mission_id": "mission-456",
+        "service_identity": "aios-root-service",
+    }
+    value.update(overrides)
+    return value
+
+
+def _proposal(**overrides):
+    value = {
+        "schema": "aios.optimization-proposal.v1",
+        "proposal_id": "proposal-1",
+        "envelope_id": "opt-envelope-1",
+        "tenant_id": "tenant-a",
+        "component": "task-worker",
+        "environment": "staging",
+        "changes": [
+            {"path": "retry.max_attempts", "value": 4},
+            {"path": "timeout.operation_seconds", "value": 30},
+        ],
+        "compute_budget": 10,
+        "tests": ["test_worker_safety", "test_candidate_latency"],
+        "quality_gates": ["no_tenant_leak"],
+        "baseline_metrics": {"success_rate": 0.95, "error_rate": 0.04},
+        "rollback_plan": {
+            "strategy": "restore_previous_values",
+            "reference": "baseline-config-17",
+        },
+    }
+    value.update(overrides)
+    return value
+
+
+def _signed_receipt_verifier():
+    private_key = Ed25519PrivateKey.generate()
+
+    def sign(receipt):
+        signed = dict(receipt)
+        signed["key_id"] = "governed-receipt-key-1"
+        signed["signature"] = base64.b64encode(
+            private_key.sign(canonical_json_bytes(signed))
+        ).decode("ascii")
+        return signed
+
+    def verify(receipt):
+        unsigned = dict(receipt)
+        signature = unsigned.pop("signature", "")
+        if unsigned.get("key_id") != "governed-receipt-key-1":
+            return False
+        try:
+            private_key.public_key().verify(
+                base64.b64decode(signature), canonical_json_bytes(unsigned)
+            )
+        except Exception:
+            return False
+        return True
+
+    return sign, verify
+
+
+def _controller(tmp_path: Path):
+    submitted = []
+    sign, verify = _signed_receipt_verifier()
+
+    def submit_task(task):
+        submitted.append(task)
+        return {"task_id": "evaluation-task-1", "state": "QUEUED"}
+
+    controller = OptimizationController(
+        tmp_path / "optimization.sqlite3",
+        _envelope(),
+        submit_task,
+        verify_receipt=verify,
+    )
+    return controller, submitted, sign
+
+
+def _evaluation(proposal_record, sign, **overrides):
+    result = {
+        "candidate_metrics": {"success_rate": 0.97, "error_rate": 0.03},
+        "compute_used": 8,
+        "tests_passed": ["test_worker_safety", "test_candidate_latency"],
+        "quality_gates_passed": ["no_tenant_leak"],
+    }
+    result.update(overrides)
+    receipt = sign(
+        {
+            "schema": "aios.governed-task-receipt.v1",
+            "task_id": proposal_record["evaluation_task_id"],
+            "proposal_id": proposal_record["proposal_id"],
+            "proposal_digest": proposal_record["proposal_digest"],
+            "action": "evaluate",
+            "success": True,
+            "result_digest": "sha256:"
+            + hashlib.sha256(canonical_json_bytes(result)).hexdigest(),
+        }
+    )
+    return {**result, "receipt": receipt}
+
+
+def test_envelope_requires_a_valid_signature_over_the_exact_payload():
+    document, verifier = _signed_envelope()
+    document["max_compute_budget"] = 10_000
+
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_ENVELOPE_SIGNATURE_INVALID"):
+        OptimizationEnvelope.from_dict(document, verify_envelope=verifier)
+
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_ENVELOPE_VERIFIER_REQUIRED"):
+        OptimizationEnvelope.from_dict(document, verify_envelope=None)
+
+
+@pytest.mark.parametrize(
+    "path",
+    [
+        "authorization.accept_without_grant",
+        "trust_root.key",
+        "tenant_isolation.enabled",
+        "acceptance.threshold",
+        "destructive_capability.enabled",
+        "owner_grant.semantics",
+        "production_migration.auto_apply",
+        "code.patch",
+    ],
+)
+def test_envelope_rejects_forbidden_or_generic_parameter_paths(path):
+    document, verifier = _signed_envelope(
+        allowed_parameters={path: {"minimum": 0, "maximum": 1}}
+    )
+    # Re-sign the changed trusted document so this reaches semantic validation.
+    private_key = Ed25519PrivateKey.generate()
+    unsigned = dict(document)
+    unsigned.pop("signature")
+    document["signature"] = base64.b64encode(
+        private_key.sign(canonical_json_bytes(unsigned))
+    ).decode("ascii")
+
+    def changed_verifier(_key_id, payload, signature):
+        try:
+            private_key.public_key().verify(base64.b64decode(signature), payload)
+        except Exception:
+            return False
+        return True
+
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_PARAMETER_PATH_FORBIDDEN"):
+        OptimizationEnvelope.from_dict(document, verify_envelope=changed_verifier)
+
+
+def test_proposal_is_bounded_and_cannot_remove_mandatory_checks():
+    envelope = _envelope()
+    normalized = validate_proposal(envelope, _proposal())
+    assert normalized["changes"][0] == {"path": "retry.max_attempts", "value": 4}
+
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_PARAMETER_OUT_OF_RANGE"):
+        validate_proposal(
+            envelope,
+            _proposal(changes=[{"path": "retry.max_attempts", "value": 99}]),
+        )
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_MANDATORY_TEST_MISSING"):
+        validate_proposal(envelope, _proposal(tests=["test_candidate_latency"]))
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_MANDATORY_GATE_MISSING"):
+        validate_proposal(envelope, _proposal(quality_gates=[]))
+
+
+def test_evidence_reuse_cannot_widen_tenant_component_or_environment_scope():
+    envelope = _envelope()
+    proposal = _proposal(
+        changes=[{"path": "evidence_reuse.max_age_seconds", "value": 300}],
+        evidence_reuse={
+            "scope": {
+                "tenant_id": "tenant-b",
+                "component": "task-worker",
+                "environment": "staging",
+            },
+            "evidence_ids": ["evidence-1"],
+        },
+    )
+
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_EVIDENCE_SCOPE_MISMATCH"):
+        validate_proposal(envelope, proposal)
+
+
+def test_propose_only_persists_a_record_and_submits_an_identity_bound_task(tmp_path):
+    controller, submitted, _ = _controller(tmp_path)
+    record = controller.propose(_proposal(), authenticated_context=_context())
+
+    assert record["status"] == "EVALUATION_SUBMITTED"
+    assert record["evaluation_task_id"] == "evaluation-task-1"
+    assert submitted == [
+        {
+            "schema": "aios.optimization-task-request.v1",
+            "task_id": "optimization-evaluate-proposal-1",
+            "action": "evaluate",
+            "tenant_id": "tenant-a",
+            "subject_id": "optimizer-service",
+            "grant_id": "grant-123",
+            "mission_id": "mission-456",
+            "proposal_id": "proposal-1",
+            "proposal_digest": record["proposal_digest"],
+            "component": "task-worker",
+            "environment": "staging",
+            "compute_budget": 10.0,
+        }
+    ]
+
+
+def test_invalid_candidate_is_stopped_without_task_submission(tmp_path):
+    controller, submitted, _ = _controller(tmp_path)
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_COMPONENT_FORBIDDEN"):
+        controller.propose(
+            _proposal(component="authorization-service"),
+            authenticated_context=_context(),
+        )
+
+    stopped = controller.get_proposal("proposal-1", authenticated_context=_context())
+    assert stopped["status"] == "STOPPED_INVALID"
+    assert submitted == []
+
+
+def test_cross_tenant_or_subject_access_is_denied(tmp_path):
+    controller, _, _ = _controller(tmp_path)
+    controller.propose(_proposal(), authenticated_context=_context())
+
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_CONTEXT_TENANT_MISMATCH"):
+        controller.get_proposal(
+            "proposal-1", authenticated_context=_context(tenant_id="tenant-b")
+        )
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_CONTEXT_SUBJECT_MISMATCH"):
+        controller.get_proposal(
+            "proposal-1", authenticated_context=_context(subject_id="other-service")
+        )
+
+
+def test_forged_or_wrong_task_receipt_is_rejected(tmp_path):
+    controller, _, sign = _controller(tmp_path)
+    proposal = controller.propose(_proposal(), authenticated_context=_context())
+    evaluation = _evaluation(proposal, sign)
+    evaluation["receipt"]["task_id"] = "some-other-task"
+
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_RECEIPT_UNTRUSTED"):
+        controller.record_evaluation(
+            "proposal-1", evaluation, authenticated_context=_context()
+        )
+
+    validly_signed_wrong_binding = _evaluation(proposal, sign)
+    unsigned = dict(validly_signed_wrong_binding["receipt"])
+    unsigned["task_id"] = "some-other-task"
+    unsigned.pop("signature")
+    validly_signed_wrong_binding["receipt"] = sign(unsigned)
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_RECEIPT_TASK_MISMATCH"):
+        controller.record_evaluation(
+            "proposal-1", validly_signed_wrong_binding, authenticated_context=_context()
+        )
+
+
+def test_no_improvement_stops_promotion(tmp_path):
+    controller, submitted, sign = _controller(tmp_path)
+    proposal = controller.propose(_proposal(), authenticated_context=_context())
+    evaluation = _evaluation(
+        proposal,
+        sign,
+        candidate_metrics={"success_rate": 0.95, "error_rate": 0.04},
+    )
+    result = controller.record_evaluation(
+        "proposal-1", evaluation, authenticated_context=_context()
+    )
+
+    assert result["status"] == "STOPPED_NO_IMPROVEMENT"
+    assert result["effect_comparison"] == {
+        "error_rate": 0.0,
+        "success_rate": 0.0,
+    }
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_NOT_PROMOTABLE"):
+        controller.promote(
+            "proposal-1",
+            {
+                "evaluation_task_id": "evaluation-task-1",
+                "proposal_digest": proposal["proposal_digest"],
+            },
+            authenticated_context=_context(),
+        )
+    assert len(submitted) == 1
+
+
+def test_quality_floor_or_baseline_regression_stops_promotion(tmp_path):
+    controller, _, sign = _controller(tmp_path)
+    proposal = controller.propose(_proposal(), authenticated_context=_context())
+    evaluation = _evaluation(
+        proposal,
+        sign,
+        candidate_metrics={"success_rate": 0.97, "error_rate": 0.05},
+    )
+    result = controller.record_evaluation(
+        "proposal-1", evaluation, authenticated_context=_context()
+    )
+    assert result["status"] == "STOPPED_QUALITY_REGRESSION"
+    assert result["effect_comparison"]["error_rate"] == pytest.approx(-0.01)
+
+    improved = _evaluation(proposal, sign)
+    with pytest.raises(OptimizationError, match="OPTIMIZATION_EVALUATION_STATE_INVALID"):
+        controller.record_evaluation(
+            "proposal-1", improved, authenticated_context=_context()
+        )
+    assert controller.get_proposal(
+        "proposal-1", authenticated_context=_context()
+    )["status"] == "STOPPED_QUALITY_REGRESSION"
+
+
+def test_eligible_candidate_promotion_is_another_governed_task_only(tmp_path):
+    controller, submitted, sign = _controller(tmp_path)
+    proposal = controller.propose(_proposal(), authenticated_context=_context())
+    result = controller.record_evaluation(
+        "proposal-1",
+        _evaluation(proposal, sign),
+        authenticated_context=_context(),
+    )
+    assert result["status"] == "ELIGIBLE"
+
+    promoted = controller.promote(
+        "proposal-1",
+        {
+            "evaluation_task_id": "evaluation-task-1",
+            "proposal_digest": proposal["proposal_digest"],
+        },
+        authenticated_context=_context(),
+    )
+    assert promoted["status"] == "PROMOTION_SUBMITTED"
+    assert len(submitted) == 2
+    promotion_task = submitted[-1]
+    assert promotion_task["action"] == "promote"
+    assert promotion_task["tenant_id"] == "tenant-a"
+    assert promotion_task["grant_id"] == "grant-123"
+    assert promotion_task["mission_id"] == "mission-456"
+    assert "changes" not in promotion_task
+
+
+def test_restart_reads_persisted_baseline_candidate_and_effect(tmp_path):
+    path = tmp_path / "optimization.sqlite3"
+    submitted = []
+    sign, verify = _signed_receipt_verifier()
+
+    def submit_task(task):
+        submitted.append(task)
+        return {"task_id": "evaluation-task-1"}
+
+    first = OptimizationController(path, _envelope(), submit_task, verify_receipt=verify)
+    proposal = first.propose(_proposal(), authenticated_context=_context())
+    first.record_evaluation(
+        "proposal-1", _evaluation(proposal, sign), authenticated_context=_context()
+    )
+
+    restarted = OptimizationController(path, _envelope(), submit_task, verify_receipt=verify)
+    restored = restarted.get_proposal("proposal-1", authenticated_context=_context())
+    assert restored["baseline_metrics"] == {"error_rate": 0.04, "success_rate": 0.95}
+    assert restored["candidate_metrics"] == {"error_rate": 0.03, "success_rate": 0.97}
+    assert restored["effect_comparison"] == {
+        "error_rate": pytest.approx(0.01),
+        "success_rate": pytest.approx(0.02),
+    }

tests/baseline_v1_1/test_package_tools.py

@@ -0,0 +1,141 @@
+"""Exercise package installation against real temporary Git repositories."""
+from pathlib import Path
+import importlib.util
+import json
+import subprocess
+import zipfile
+
+import pytest
+
+
+ROOT = Path(__file__).resolve().parents[2]
+SPEC = importlib.util.spec_from_file_location("baseline_bundle", ROOT / "tools/baseline_v1_1/bundle.py")
+bundle = importlib.util.module_from_spec(SPEC)
+SPEC.loader.exec_module(bundle)
+
+
+def git(root, *args):
+    return subprocess.check_output(["git", "-C", str(root), *args], text=True).strip()
+
+
+@pytest.fixture
+def repos(tmp_path):
+    source = tmp_path / "source"
+    source.mkdir()
+    git(source, "init", "--quiet")
+    (source / "app.py").write_text("print('before')\n")
+    (source / "retired.txt").write_text("historical\n")
+    git(source, "add", ".")
+    git(source, "-c", "user.name=Test", "-c", "user.email=test@localhost", "commit", "--quiet", "-m", "base")
+    revision = git(source, "rev-parse", "HEAD")
+    work = tmp_path / "work"
+    subprocess.run(["git", "clone", "--quiet", str(source), str(work)], check=True)
+    (work / "app.py").write_text("print('after')\n")
+    (work / "retired.txt").unlink()
+    (work / "new").mkdir()
+    (work / "new/tool.py").write_text("print('new')\n")
+    artifact = tmp_path / "change.zip"
+    bundle.create_bundle(work, revision, artifact)
+    return source, work, revision, artifact
+
+
+def test_stage_dry_run_install_and_conflict_safe_rollback(repos, tmp_path):
+    source, work, revision, artifact = repos
+    target = tmp_path / "staged"
+    result = bundle.stage_bundle(artifact, source, target, dry_run=True)
+    assert result["status"] == "DRY_RUN"
+    assert not target.exists()
+    assert (source / "app.py").read_text() == "print('before')\n"
+    result = bundle.stage_bundle(artifact, source, target)
+    assert result["status"] == "STAGED"
+    assert (target / "app.py").read_text() == "print('after')\n"
+    assert not (target / "retired.txt").exists()
+    assert (target / "new/tool.py").is_file()
+    assert git(target, "rev-parse", "HEAD") == revision
+    with pytest.raises(bundle.PackageError, match="exists"):
+        bundle.stage_bundle(artifact, source, target)
+    (target / "app.py").write_text("owner edited\n")
+    with pytest.raises(bundle.PackageError, match="changed"):
+        bundle.rollback(target)
+    assert (target / "app.py").read_text() == "owner edited\n"
+    assert (target / "new/tool.py").exists()
+    (target / "app.py").write_text("print('after')\n")
+    assert bundle.rollback(target, dry_run=True)["status"] == "DRY_RUN"
+    assert bundle.rollback(target)["status"] == "ROLLED_BACK"
+    assert not (target / "new/tool.py").exists()
+    assert (target / "retired.txt").read_text() == "historical\n"
+    assert not git(target, "status", "--porcelain")
+
+
+def test_dirty_wrong_base_and_unknown_destination_refused(repos, tmp_path):
+    source, work, revision, artifact = repos
+    (source / "local.txt").write_text("do not overwrite")
+    with pytest.raises(bundle.PackageError, match="clean"):
+        bundle.stage_bundle(artifact, source, tmp_path / "one")
+    (source / "local.txt").unlink()
+    (source / "app.py").write_text("another base")
+    git(source, "add", ".")
+    git(source, "-c", "user.name=Test", "-c", "user.email=test@localhost", "commit", "--quiet", "-m", "different")
+    with pytest.raises(bundle.PackageError, match="baseline"):
+        bundle.stage_bundle(artifact, source, tmp_path / "two")
+    assert not (tmp_path / "two").exists()
+
+
+def test_tamper_traversal_extra_entries_and_symlink_refused(repos, tmp_path):
+    source, work, revision, artifact = repos
+    with zipfile.ZipFile(artifact) as z:
+        entries = {name: z.read(name) for name in z.namelist()}
+    for index, change in enumerate((
+        {"new/app.py": b"tampered"},
+        {"../escape": b"bad"},
+        {"unlisted.py": b"bad"},
+    )):
+        bad = tmp_path / f"bad-{index}.zip"
+        with zipfile.ZipFile(bad, "w") as z:
+            for name, body in (entries | change).items():
+                z.writestr(name, body)
+        with pytest.raises(bundle.PackageError):
+            bundle.verify_bundle(bad)
+    (work / "escape.py").symlink_to(source / "app.py")
+    with pytest.raises(bundle.PackageError, match="symlink"):
+        bundle.create_bundle(work, revision, tmp_path / "links.zip")
+
+
+def test_rollback_refuses_added_file_symlink_without_touching_referent(repos, tmp_path):
+    source, work, revision, artifact = repos
+    target = tmp_path / "staged"
+    bundle.stage_bundle(artifact, source, target)
+    outside = tmp_path / "outside"
+    outside.write_text("owner data")
+    (target / "new/tool.py").unlink()
+    (target / "new/tool.py").symlink_to(outside)
+    with pytest.raises(bundle.PackageError, match="symlink"):
+        bundle.rollback(target)
+    assert outside.read_text() == "owner data"
+    assert (target / "app.py").read_text() == "print('after')\n"
+
+
+def test_manifest_semantic_tampering_is_rejected(repos, tmp_path):
+    source, work, revision, artifact = repos
+    with zipfile.ZipFile(artifact) as z:
+        entries = {name: z.read(name) for name in z.namelist()}
+    document = json.loads(entries["manifest.json"])
+    document["changes"][0]["before_sha256"] = "0" * 64
+    entries["manifest.json"] = json.dumps(document).encode()
+    bad = tmp_path / "bad-manifest.zip"
+    with zipfile.ZipFile(bad, "w") as z:
+        for name, body in entries.items():
+            z.writestr(name, body)
+    with pytest.raises(bundle.PackageError, match="before|base"):
+        bundle.verify_bundle(bad)
+
+
+def test_rollback_preserves_user_staged_changes(repos, tmp_path):
+    source, work, revision, artifact = repos
+    target = tmp_path / "staged"
+    bundle.stage_bundle(artifact, source, target)
+    git(target, "add", "app.py")
+    with pytest.raises(bundle.PackageError, match="index changed"):
+        bundle.rollback(target)
+    assert (target / "app.py").read_text() == "print('after')\n"
+    assert git(target, "diff", "--cached", "--name-only") == "app.py"

tests/baseline_v1_1/test_release_lineage.py

@@ -0,0 +1,583 @@
+from __future__ import annotations
+
+import base64
+import json
+import sqlite3
+
+import pytest
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+
+from aios_baseline.lineage import (
+    LineageConflict,
+    LineageLedger,
+    LineageVerificationError,
+    VerifiedAcceptanceEvidence,
+)
+from aios_baseline.release import (
+    ReleaseAuthorizationError,
+    ReleaseConflict,
+    ReleaseLedger,
+    ReleaseReconciliationRequired,
+    ReleaseVerificationError,
+    VerifiedReceipt,
+)
+from aios_baseline.verifiers import (
+    ACCEPTANCE_EVIDENCE_DOMAIN,
+    RELEASE_RECEIPT_DOMAIN,
+    SignatureVerificationError,
+    ed25519_acceptance_evidence_verifier,
+    ed25519_release_receipt_verifier,
+)
+
+
+class TaskAuthority:
+    def __init__(self):
+        self.tasks = {}
+        self.jobs = {}
+
+    def add(self, task_id, tenant_id="tenant-a", subject_id="user-a", **metadata):
+        metadata.setdefault("component_id", "component-a")
+        self.tasks[task_id] = {
+            "task_id": task_id,
+            "plan": {
+                "issuer": {"tenant_id": tenant_id, "subject_id": subject_id},
+                "metadata": metadata,
+            },
+        }
+
+    def get_task(self, task_id):
+        return self.tasks[task_id]
+
+    def add_job(
+        self, job_id, task_id, effect_id, tenant_id="tenant-a", subject_id="user-a",
+        mission_id="mission-1", grant_id="grant-1",
+    ):
+        self.jobs[job_id] = {
+            "job_id": job_id,
+            "request": {
+                "tenant_id": tenant_id, "subject_id": subject_id,
+                "mission_id": mission_id, "grant_id": grant_id,
+                "task_id": task_id, "effect_id": effect_id,
+            },
+        }
+
+    def read(self, job_id):
+        return self.jobs[job_id]
+
+
+@pytest.fixture
+def authority():
+    value = TaskAuthority()
+    value.add("task-1", mission_id="mission-1", grant_id="grant-1")
+    value.add("task-2", mission_id="mission-1", grant_id="grant-1")
+    value.add_job("job-1", "task-1", "effect-1")
+    value.add_job("job-2", "task-2", "effect-1")
+    return value
+
+
+def build_lineage(path, authority):
+    ledger = LineageLedger(path, authority, authority)
+    ledger.link_task("tenant-a", "user-a", "mission-1", "grant-1", "task-1")
+    ledger.link_effect(
+        "tenant-a", "user-a", "mission-1", "task-1", "effect-1", "job-1"
+    )
+    ledger.link_release(
+        "tenant-a", "user-a", "mission-1", "effect-1", "release-1", {"sha256": "abc"}
+    )
+    return ledger
+
+
+def test_lineage_is_durable_and_explains_only_exact_mission(tmp_path, authority):
+    db = tmp_path / "domain.sqlite"
+    ledger = build_lineage(db, authority)
+    ledger.link_deployment(
+        "tenant-a", "user-a", "mission-1", "release-1", "deployment-1",
+        "component-a", "staging", 1, {"sha256": "abc"},
+    )
+    ledger.close()
+
+    reopened = LineageLedger(db, authority, authority)
+    graph = reopened.explain("tenant-a", "user-a", "mission-1")
+    assert [item["task_id"] for item in graph["tasks"]] == ["task-1"]
+    assert graph["effects"][0]["job_id"] == "job-1"
+    assert graph["releases"][0]["source_task_id"] == "task-1"
+    assert graph["deployments"][0]["release_id"] == "release-1"
+    assert reopened.explain("tenant-a", "user-a", "mission-10")["tasks"] == []
+
+
+def test_task_authority_and_global_within_tenant_identity_are_enforced(tmp_path, authority):
+    ledger = LineageLedger(tmp_path / "lineage.sqlite", authority, authority)
+    with pytest.raises(LineageVerificationError, match="task_authority"):
+        ledger.link_task("tenant-a", "intruder", "mission-1", "grant-1", "task-1")
+    ledger.link_task("tenant-a", "user-a", "mission-1", "grant-1", "task-1")
+    with pytest.raises((LineageConflict, LineageVerificationError)):
+        ledger.link_task("tenant-a", "other-user", "other", "other", "task-1")
+
+    # A tenant boundary permits the same opaque ID without leaking either graph.
+    authority.add("shared", tenant_id="tenant-a", subject_id="user-a")
+    ledger.link_task("tenant-a", "user-a", "m-a", "g-a", "shared")
+    authority.add("shared", tenant_id="tenant-b", subject_id="user-b")
+    ledger.link_task("tenant-b", "user-b", "m-b", "g-b", "shared")
+    assert len(ledger.explain("tenant-a", "user-a", "m-a")["tasks"]) == 1
+    assert len(ledger.explain("tenant-b", "user-b", "m-b")["tasks"]) == 1
+
+
+def test_job_effect_and_release_bindings_are_immutable(tmp_path, authority):
+    ledger = build_lineage(tmp_path / "lineage.sqlite", authority)
+    ledger.link_task("tenant-a", "user-a", "mission-1", "grant-1", "task-2")
+    with pytest.raises((LineageConflict, LineageVerificationError)):
+        ledger.link_effect(
+            "tenant-a", "user-a", "mission-1", "task-2", "effect-2", "job-1"
+        )
+    with pytest.raises(LineageConflict, match="release-producing effect"):
+        ledger.link_release(
+            "tenant-a", "user-a", "mission-1", "effect-1", "release-2", {"sha256": "def"}
+        )
+    with pytest.raises(LineageConflict, match="effect_id"):
+        ledger.link_effect(
+            "tenant-a", "user-a", "mission-1", "task-2", "effect-1", "job-2"
+        )
+
+    authority.add("task-other-subject", tenant_id="tenant-a", subject_id="user-b")
+    ledger.link_task("tenant-a", "user-b", "mission-b", "grant-b", "task-other-subject")
+    with pytest.raises((LineageConflict, LineageVerificationError)):
+        ledger.link_effect(
+            "tenant-a", "user-b", "mission-b", "task-other-subject", "effect-b", "job-1"
+        )
+
+
+def _acceptance_verifier(raw, expected):
+    if raw != {"proof": "trusted"}:
+        raise ValueError("untrusted")
+    return VerifiedAcceptanceEvidence(
+        acceptance_id=expected["acceptance_id"],
+        tenant_id=expected["tenant_id"],
+        subject_id=expected["subject_id"],
+        deployment_id=expected["deployment_id"],
+        release_id=expected["release_id"],
+        component_id=expected["component_id"],
+        artifact=expected["artifact"],
+        accepted=True,
+        evidence_id="evidence-1",
+    )
+
+
+def test_acceptance_rejects_wrong_deployment_release_or_artifact(tmp_path, authority):
+    ledger = build_lineage(tmp_path / "lineage.sqlite", authority)
+    ledger.link_deployment(
+        "tenant-a", "user-a", "mission-1", "release-1", "deployment-1",
+        "component-a", "staging", 1, {"sha256": "abc"},
+    )
+    for deployment, release, artifact in (
+        ("deployment-x", "release-1", {"sha256": "abc"}),
+        ("deployment-1", "release-x", {"sha256": "abc"}),
+        ("deployment-1", "release-1", {"sha256": "wrong"}),
+    ):
+        with pytest.raises((LineageConflict, LineageVerificationError)):
+            ledger.record_acceptance(
+                "tenant-a", "user-a", "mission-1", "component-a", "acceptance-x",
+                deployment, release, artifact, True,
+                evidence={"proof": "trusted"}, verifier=_acceptance_verifier,
+            )
+    accepted = ledger.record_acceptance(
+        "tenant-a", "user-a", "mission-1", "component-a", "acceptance-1",
+        "deployment-1", "release-1", {"sha256": "abc"}, True,
+        evidence={"proof": "trusted"}, verifier=_acceptance_verifier,
+    )
+    assert accepted["acceptance_id"] == "acceptance-1"
+    with pytest.raises(LineageConflict, match="component"):
+        ledger.record_acceptance(
+            "tenant-a", "user-a", "mission-1", "component-b", "acceptance-component",
+            "deployment-1", "release-1", {"sha256": "abc"}, True,
+            evidence={"proof": "trusted"}, verifier=_acceptance_verifier,
+        )
+
+    def wrong_binding(raw, expected):
+        verified = _acceptance_verifier(raw, expected)
+        return VerifiedAcceptanceEvidence(
+            **{**verified.__dict__, "deployment_id": "deployment-other"}
+        )
+
+    with pytest.raises(LineageVerificationError, match="binding"):
+        ledger.record_acceptance(
+            "tenant-a", "user-a", "mission-1", "component-a", "acceptance-2",
+            "deployment-1", "release-1", {"sha256": "abc"}, True,
+            evidence={"proof": "trusted"}, verifier=wrong_binding,
+        )
+
+
+def _receipt_verifier(raw, expected):
+    if raw.get("signed_by") != "configured-sink":
+        raise ValueError("untrusted receipt")
+    return VerifiedReceipt(
+        receipt_id=raw["receipt_id"],
+        tenant_id=expected["tenant_id"],
+        subject_id=expected["subject_id"],
+        component_id=expected["component_id"],
+        task_id=expected["task_id"],
+        source_task_id=expected["source_task_id"],
+        source_effect_id=expected["source_effect_id"],
+        grant_id=expected["grant_id"],
+        job_id=expected["job_id"],
+        effect_id=raw["effect_id"],
+        operation_id=expected["operation_id"],
+        deployment_id=expected["deployment_id"],
+        release_id=expected["release_id"],
+        artifact=expected["artifact"],
+        observed={"healthy": True},
+    )
+
+
+def _target_authorizer(tenant_id, subject_id, component_id, environment, action):
+    return (
+        tenant_id == "tenant-a"
+        and subject_id in {"user-a", "operator-a"}
+        and component_id in {"component-a", "component-b"}
+        and environment == "staging"
+        and action in {"read", "write", "deploy", "accept"}
+    )
+
+
+class GovernedAdapter:
+    def __init__(self, authority, execute, reconcile=None):
+        self.authority = authority
+        self._execute = execute
+        if reconcile is not None:
+            self.reconcile = reconcile
+
+    def prepare(self, operation):
+        job_id = f"real-job:{operation['saga_id']}:{operation['stage_index']}"
+        self.authority.add_job(
+            job_id, operation["task_id"], operation["effect_id"],
+            tenant_id=operation["tenant_id"], subject_id=operation["subject_id"],
+            mission_id=operation["mission_id"], grant_id=operation["grant_id"],
+        )
+        return {"job_id": job_id}
+
+    def execute(self, operation):
+        return self._execute(operation)
+
+
+def _release_ledger(path, lineage):
+    release = ReleaseLedger(
+        path, lineage=lineage, receipt_verifier=_receipt_verifier,
+        target_authorizer=_target_authorizer,
+    )
+    release.register_recipe(
+        "recipe-1",
+        [
+            {"stage_id": "install", "operation_id": "deploy.install"},
+            {"stage_id": "health", "operation_id": "deploy.health"},
+        ],
+    )
+    release.set_target(
+        "tenant-a", "user-a", "component-a", "staging", "release-1", {"sha256": "abc"},
+        expected_revision=None, stage="STAGED", source_revision="source-5",
+        observed_main_revision="main-9", rollback_compatible=True,
+    )
+    release.start_saga(
+        "tenant-a", "user-a", "mission-1", "component-a", "saga-1", "release-1",
+        "deployment-1", "staging", {"sha256": "abc"}, "recipe-1",
+        expected_target_revision=1,
+    )
+    return release
+
+
+def test_release_target_is_persistent_cas_and_allows_main_ahead(tmp_path, authority):
+    db = tmp_path / "domain.sqlite"
+    lineage = build_lineage(db, authority)
+    release = _release_ledger(db, lineage)
+    target = release.get_target("tenant-a", "user-a", "component-a", "staging")
+    assert target.revision == 1
+    assert target.source_revision == "source-5"
+    assert target.observed_main_revision == "main-9"  # main may be ahead while staged
+    with pytest.raises(ReleaseConflict, match="expected revision"):
+        release.set_target(
+            "tenant-a", "user-a", "component-a", "staging", "release-1", {"sha256": "abc"},
+            expected_revision=0,
+        )
+    reopened = ReleaseLedger(
+        db, lineage=lineage, receipt_verifier=_receipt_verifier,
+        target_authorizer=_target_authorizer,
+    )
+    assert reopened.get_target("tenant-a", "user-a", "component-a", "staging").revision == 1
+    assert reopened.get_saga("tenant-a", "user-a", "saga-1")["stage_id"] == "install"
+    with pytest.raises(ReleaseAuthorizationError):
+        reopened.get_saga("tenant-a", "intruder", "saga-1")
+
+
+def test_targets_are_component_scoped_and_subject_is_authorized_actor(tmp_path, authority):
+    db = tmp_path / "domain.sqlite"
+    lineage = build_lineage(db, authority)
+    authority.add("task-b", component_id="component-b", mission_id="mission-b", grant_id="grant-b")
+    authority.add_job("job-b", "task-b", "effect-b", mission_id="mission-b", grant_id="grant-b")
+    lineage.link_task("tenant-a", "user-a", "mission-b", "grant-b", "task-b")
+    lineage.link_effect("tenant-a", "user-a", "mission-b", "task-b", "effect-b", "job-b")
+    lineage.link_release(
+        "tenant-a", "user-a", "mission-b", "effect-b", "release-b", {"sha256": "bbb"}
+    )
+    release = _release_ledger(db, lineage)
+    second = release.set_target(
+        "tenant-a", "user-a", "component-b", "staging", "release-b", {"sha256": "bbb"},
+        expected_revision=None,
+    )
+    assert second.revision == 1
+    assert release.get_target("tenant-a", "user-a", "component-a", "staging").release_id == "release-1"
+    assert release.get_target("tenant-a", "user-a", "component-b", "staging").release_id == "release-b"
+
+    shared = release.set_target(
+        "tenant-a", "operator-a", "component-a", "staging", "release-1", {"sha256": "abc"},
+        expected_revision=1,
+    )
+    assert shared.revision == 2
+    assert shared.updated_by_subject_id == "operator-a"
+    with pytest.raises(ReleaseConflict, match="expected revision"):
+        release.set_target(
+            "tenant-a", "user-a", "component-a", "staging", "release-1", {"sha256": "abc"},
+            expected_revision=1,
+        )
+    with pytest.raises(ReleaseAuthorizationError):
+        release.get_target("tenant-a", "intruder", "component-a", "staging")
+    with pytest.raises(ReleaseAuthorizationError):
+        release.set_target(
+            "tenant-a", "intruder", "component-a", "staging", "release-1", {"sha256": "abc"},
+            expected_revision=2,
+        )
+
+
+def test_unversioned_candidate_release_schema_is_rejected(tmp_path, authority):
+    db = tmp_path / "legacy-candidate.sqlite"
+    lineage = build_lineage(db, authority)
+    with sqlite3.connect(db) as connection:
+        connection.execute("CREATE TABLE release_targets(tenant_id TEXT, environment TEXT)")
+    with pytest.raises(ReleaseConflict, match="unversioned"):
+        ReleaseLedger(
+            db, lineage=lineage, receipt_verifier=_receipt_verifier,
+            target_authorizer=_target_authorizer,
+        )
+
+
+def test_target_rollback_requires_the_persisted_compatible_binding(tmp_path, authority):
+    db = tmp_path / "domain.sqlite"
+    lineage = build_lineage(db, authority)
+    release = _release_ledger(db, lineage)
+    with pytest.raises(ReleaseConflict, match="rollback target"):
+        release.set_target(
+            "tenant-a", "user-a", "component-a", "staging", "release-1", {"sha256": "abc"},
+            expected_revision=1, stage="ROLLBACK_STAGED",
+        )
+
+
+def test_outer_artifact_manifest_must_not_hash_itself(tmp_path, authority):
+    ledger = LineageLedger(tmp_path / "lineage.sqlite", authority, authority)
+    ledger.link_task("tenant-a", "user-a", "mission-1", "grant-1", "task-1")
+    ledger.link_effect(
+        "tenant-a", "user-a", "mission-1", "task-1", "effect-1", "job-1"
+    )
+    with pytest.raises(ValueError, match="self hash"):
+        ledger.link_release(
+            "tenant-a", "user-a", "mission-1", "effect-1", "release-1",
+            {"files": [], "manifest_sha256": "recursive-impossibility"},
+        )
+
+
+def test_release_saga_reuses_effect_after_crash_and_advances_only_verified_receipt(
+    tmp_path, authority
+):
+    db = tmp_path / "domain.sqlite"
+    lineage = build_lineage(db, authority)
+    release = _release_ledger(db, lineage)
+    seen = []
+
+    def crash(operation):
+        seen.append(operation["effect_id"])
+        raise RuntimeError("process crashed after durable external sink write")
+
+    with pytest.raises(RuntimeError, match="crashed"):
+        release.advance_saga("tenant-a", "user-a", "saga-1", 0, GovernedAdapter(authority, crash))
+    assert release.get_saga("tenant-a", "user-a", "saga-1")["revision"] == 0
+
+    # A new process/object observes the intent and keeps its stable effect fence.
+    release = ReleaseLedger(
+        db, lineage=lineage, receipt_verifier=_receipt_verifier,
+        target_authorizer=_target_authorizer,
+    )
+    with pytest.raises(ReleaseReconciliationRequired, match="RECONCILIATION_REQUIRED"):
+        release.advance_saga(
+            "tenant-a", "user-a", "saga-1", 0,
+            GovernedAdapter(authority, lambda _operation: pytest.fail("unknown effect repeated")),
+        )
+
+    def resume(operation):
+        seen.append(operation["effect_id"])
+        return {
+            "signed_by": "configured-sink",
+            "receipt_id": "receipt-install",
+            "effect_id": operation["effect_id"],
+        }
+
+    adapter=GovernedAdapter(authority, lambda _operation: pytest.fail("unknown effect repeated"), reconcile=resume)
+    advanced = release.advance_saga("tenant-a", "user-a", "saga-1", 0, adapter)
+    assert seen[0] == seen[1]
+    assert advanced["stage_id"] == "health"
+    assert advanced["revision"] == 1
+
+    with pytest.raises(ReleaseConflict, match="expected revision"):
+        release.advance_saga("tenant-a", "user-a", "saga-1", 0, adapter)
+
+
+def test_release_rejects_receipt_for_wrong_effect(tmp_path, authority):
+    db = tmp_path / "domain.sqlite"
+    lineage = build_lineage(db, authority)
+    release = _release_ledger(db, lineage)
+
+    calls = []
+
+    def wrong(operation):
+        calls.append(operation["effect_id"])
+        return {
+            "signed_by": "configured-sink",
+            "receipt_id": "receipt-wrong",
+            "effect_id": "different-effect",
+        }
+
+    with pytest.raises(ReleaseVerificationError, match="effect_id"):
+        release.advance_saga("tenant-a", "user-a", "saga-1", 0, GovernedAdapter(authority, wrong))
+    with pytest.raises(ReleaseVerificationError, match="effect_id"):
+        release.advance_saga("tenant-a", "user-a", "saga-1", 0, GovernedAdapter(authority, wrong))
+    assert len(calls) == 1  # the durable unverified receipt prevents effect replay
+    assert release.get_saga("tenant-a", "user-a", "saga-1")["revision"] == 0
+
+
+def test_release_rejects_verified_receipt_for_other_component(tmp_path, authority):
+    db = tmp_path / "domain.sqlite"
+    lineage = build_lineage(db, authority)
+
+    def wrong_component(raw, expected):
+        return VerifiedReceipt(
+            receipt_id="receipt-wrong-component", tenant_id=expected["tenant_id"],
+            subject_id=expected["subject_id"], component_id="component-b",
+            task_id=expected["task_id"],source_task_id=expected["source_task_id"],
+            source_effect_id=expected["source_effect_id"],grant_id=expected["grant_id"],job_id=expected["job_id"],
+            effect_id=expected["effect_id"], operation_id=expected["operation_id"],
+            deployment_id=expected["deployment_id"], release_id=expected["release_id"],
+            artifact=expected["artifact"], observed={"healthy": True},
+        )
+
+    release = ReleaseLedger(
+        db, lineage=lineage, receipt_verifier=wrong_component,
+        target_authorizer=_target_authorizer,
+    )
+    release.register_recipe("recipe", [{"stage_id": "install", "operation_id": "deploy.install"}])
+    release.set_target(
+        "tenant-a", "user-a", "component-a", "staging", "release-1", {"sha256": "abc"},
+        expected_revision=None,
+    )
+    release.start_saga(
+        "tenant-a", "user-a", "mission-1", "component-a", "saga", "release-1",
+        "deployment", "staging", {"sha256": "abc"}, "recipe", expected_target_revision=1,
+    )
+    with pytest.raises(ReleaseVerificationError, match="component_id"):
+        release.advance_saga(
+            "tenant-a", "user-a", "saga", 0,
+            GovernedAdapter(authority, lambda operation: {"effect_id": operation["effect_id"]}),
+        )
+
+
+def test_outer_artifact_manifest_cannot_hash_itself(tmp_path, authority):
+    ledger = LineageLedger(tmp_path / "lineage.sqlite", authority, authority)
+    ledger.link_task("tenant-a", "user-a", "mission-1", "grant-1", "task-1")
+    ledger.link_effect("tenant-a", "user-a", "mission-1", "task-1", "effect-1", "job-1")
+    with pytest.raises(ValueError, match="self hash"):
+        ledger.link_release(
+            "tenant-a", "user-a", "mission-1", "effect-1", "release-1",
+            {"sha256": "abc", "manifest_sha256": "self"},
+        )
+
+
+def _signed_envelope(private_key, domain, schema, payload, key_id="configured-key"):
+    canonical = json.dumps(
+        payload, ensure_ascii=False, sort_keys=True, separators=(",", ":"), allow_nan=False
+    ).encode()
+    signature = private_key.sign(domain + b"\x00" + canonical)
+    return {
+        "schema": schema,
+        "key_id": key_id,
+        "payload": payload,
+        "signature": base64.urlsafe_b64encode(signature).rstrip(b"=").decode(),
+    }
+
+
+def test_ed25519_release_verifier_authenticates_domain_and_every_binding():
+    private_key = Ed25519PrivateKey.generate()
+    verifier = ed25519_release_receipt_verifier(
+        {"configured-key": private_key.public_key()}
+    )
+    expected = {
+        "tenant_id": "tenant-a", "subject_id": "user-a", "effect_id": "effect-a",
+        "component_id": "component-a", "task_id": "task-a", "source_task_id": "task-a",
+        "source_effect_id": "source-effect-a", "grant_id": "grant-a", "job_id": "job-a",
+        "operation_id": "deploy.install", "deployment_id": "deployment-a",
+        "release_id": "release-a", "component_id": "component-a",
+        "artifact": {"sha256": "abc"},
+    }
+    payload = {
+        **expected, "receipt_id": "receipt-a", "outcome": "SUCCEEDED",
+        "observed": {"installed": True}, "observed_at": "2026-09-07T20:00:00Z",
+    }
+    envelope = _signed_envelope(
+        private_key, RELEASE_RECEIPT_DOMAIN,
+        "aios.release-operation-receipt-envelope.v1", payload,
+    )
+    assert verifier(envelope, expected).effect_id == "effect-a"
+
+    tampered = {**envelope, "payload": {**payload, "deployment_id": "other"}}
+    with pytest.raises(SignatureVerificationError, match="signature"):
+        verifier(tampered, expected)
+    cross_domain = _signed_envelope(
+        private_key, ACCEPTANCE_EVIDENCE_DOMAIN,
+        "aios.release-operation-receipt-envelope.v1", payload,
+    )
+    with pytest.raises(SignatureVerificationError, match="signature"):
+        verifier(cross_domain, expected)
+    with pytest.raises(SignatureVerificationError, match="fields"):
+        verifier({**envelope, "public_key": "caller-controlled"}, expected)
+
+
+def test_ed25519_acceptance_verifier_binds_decision_and_deployment(tmp_path, authority):
+    private_key = Ed25519PrivateKey.generate()
+    verifier = ed25519_acceptance_evidence_verifier(
+        {"acceptance-key": private_key.public_key()}
+    )
+    expected = {
+        "acceptance_id": "acceptance-crypto", "tenant_id": "tenant-a",
+        "subject_id": "user-a", "deployment_id": "deployment-1",
+        "release_id": "release-1", "component_id": "component-a",
+        "artifact": {"sha256": "abc"}, "accepted": True,
+    }
+    payload = {
+        **expected, "evidence_id": "evidence-a", "observed": {"healthy": True},
+        "observed_at": "2026-09-07T20:00:00Z",
+    }
+    envelope = _signed_envelope(
+        private_key, ACCEPTANCE_EVIDENCE_DOMAIN,
+        "aios.release-acceptance-evidence-envelope.v1", payload, key_id="acceptance-key",
+    )
+    assert verifier(envelope, expected).accepted is True
+    ledger = build_lineage(tmp_path / "signed-acceptance.sqlite", authority)
+    ledger.link_deployment(
+        "tenant-a", "user-a", "mission-1", "release-1", "deployment-1",
+        "component-a", "staging", 1, {"sha256": "abc"},
+    )
+    stored = ledger.record_acceptance(
+        "tenant-a", "user-a", "mission-1", "component-a", "acceptance-crypto",
+        "deployment-1", "release-1", {"sha256": "abc"}, True,
+        evidence=envelope, verifier=verifier,
+    )
+    assert stored["evidence_id"] == "evidence-a"
+    with pytest.raises(SignatureVerificationError, match="accepted"):
+        verifier(envelope, {**expected, "accepted": False})
+    with pytest.raises(SignatureVerificationError, match="deployment_id"):
+        verifier(envelope, {**expected, "deployment_id": "deployment-other"})
+    with pytest.raises(SignatureVerificationError, match="component_id"):
+        verifier(envelope, {**expected, "component_id": "component-b"})

tests/baseline_v1_1/test_transport.py

@@ -0,0 +1,269 @@
+from __future__ import annotations
+
+from http.client import HTTPConnection
+from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
+import json
+import threading
+import time
+
+import pytest
+
+from aios_baseline.service import Identity
+from aios_baseline.transport import HttpTransport, TransportError, serve
+from aios_baseline.worker import OperationWorker
+from tests.baseline_v1_1.test_loop import REQUEST, USER, WORKER, fixture_service
+
+
+def _running_server(service):
+    server = serve(
+        service,
+        {"user-token-012345678901234567890123456789": USER, "worker-token-012345678901234567890123456789": WORKER},
+        host="127.0.0.1",
+        port=0,
+    )
+    thread = threading.Thread(target=server.serve_forever, daemon=True)
+    thread.start()
+    return server, thread
+
+
+def _stop(server, thread):
+    server.shutdown()
+    server.server_close()
+    thread.join(timeout=5)
+
+
+def test_real_http_goal_worker_receipt_query_and_explain(tmp_path):
+    service = fixture_service(tmp_path)
+    server, thread = _running_server(service)
+    base_url = f"http://127.0.0.1:{server.server_port}"
+    try:
+        user = HttpTransport(base_url, "user-token-012345678901234567890123456789")
+        worker_transport = HttpTransport(base_url, "worker-token-012345678901234567890123456789")
+        created = user.submit_goal(REQUEST, idempotency_key="transport-a")
+
+        worker = OperationWorker(worker_transport, poll_seconds=0.01)
+        completed = worker.run_once()
+
+        assert completed["task_id"] == created["task_id"]
+        assert completed["status"] == "COMPLETED"
+        assert completed["receipt"]["observation"]["properties"]["MainPID"] == "123"
+        assert user.get_task(created["task_id"])["status"] == "COMPLETED"
+        explained = user.explain("mission-a")
+        assert explained["mission_id"] == "mission-a"
+        assert [item["task_id"] for item in explained["tasks_runtime"]] == [created["task_id"]]
+    finally:
+        _stop(server, thread)
+
+
+def test_cancel_and_worker_claim_have_no_client_completion_or_receipt_route(tmp_path):
+    service = fixture_service(tmp_path)
+    server, thread = _running_server(service)
+    base_url = f"http://127.0.0.1:{server.server_port}"
+    try:
+        user = HttpTransport(base_url, "user-token-012345678901234567890123456789")
+        worker = HttpTransport(base_url, "worker-token-012345678901234567890123456789")
+        created = user.submit_goal(REQUEST, idempotency_key="transport-cancel")
+        cancelled = user.cancel_task(created["task_id"])
+        worker.register_worker()
+        worker.heartbeat()
+        assert cancelled["status"] == "CANCELLED"
+        assert worker.claim_next() is None
+
+        connection = HTTPConnection("127.0.0.1", server.server_port, timeout=3)
+        body = json.dumps({"task_id": created["task_id"], "receipt": {"success": True}})
+        connection.request(
+            "POST",
+            "/v1/workers/complete",
+            body=body,
+            headers={
+                "Authorization": "Bearer worker-token-012345678901234567890123456789",
+                "Content-Type": "application/json",
+                "Content-Length": str(len(body.encode())),
+                "X-AIOS-Deadline": str(time.time() + 3),
+            },
+        )
+        response = connection.getresponse()
+        response.read()
+        connection.close()
+        assert response.status == 404
+        assert user.get_task(created["task_id"])["status"] == "CANCELLED"
+    finally:
+        _stop(server, thread)
+
+
+def test_server_uses_token_identity_and_rejects_body_scope_claims(tmp_path):
+    service = fixture_service(tmp_path)
+    server, thread = _running_server(service)
+    base_url = f"http://127.0.0.1:{server.server_port}"
+    try:
+        user = HttpTransport(base_url, "user-token-012345678901234567890123456789")
+        with pytest.raises(TransportError, match="HTTP_IDENTITY_FIELD_FORBIDDEN") as exc:
+            user.submit_goal({**REQUEST, "tenant_id": "tenant-b"}, idempotency_key="spoof")
+        assert exc.value.status == 400
+
+        worker = HttpTransport(base_url, "worker-token-012345678901234567890123456789")
+        with pytest.raises(TransportError, match="HTTP_IDENTITY_FIELD_FORBIDDEN"):
+            worker._request("POST", "/v1/workers/register", {"tenant_id": "tenant-b"})
+
+        outsider = HttpTransport(base_url, "not-a-token-012345678901234567890123456789")
+        with pytest.raises(TransportError, match="HTTP_UNAUTHORIZED") as unauthorized:
+            outsider.submit_goal(REQUEST, idempotency_key="unauthorized")
+        assert unauthorized.value.status == 401
+    finally:
+        _stop(server, thread)
+
+
+def test_http_boundary_rejects_large_malformed_or_expired_requests(tmp_path):
+    service = fixture_service(tmp_path)
+    server, thread = _running_server(service)
+    try:
+        def post(raw, *, deadline):
+            connection = HTTPConnection("127.0.0.1", server.server_port, timeout=3)
+            connection.request(
+                "POST",
+                "/v1/goals/submit",
+                body=raw,
+                headers={
+                    "Authorization": "Bearer user-token-012345678901234567890123456789",
+                    "Content-Type": "application/json",
+                    "Content-Length": str(len(raw)),
+                    "X-AIOS-Deadline": deadline,
+                },
+            )
+            response = connection.getresponse()
+            payload = response.read()
+            connection.close()
+            return response.status, payload
+
+        status, payload = post(b"{" + b"x" * 70_000, deadline=str(time.time() + 3))
+        assert status == 413
+        assert b"HTTP_BODY_TOO_LARGE" in payload
+
+        status, payload = post(b"not-json", deadline=str(time.time() + 3))
+        assert status == 400
+        assert b"HTTP_JSON_INVALID" in payload
+
+        status, payload = post(
+            b'{"request":{},"request":{},"idempotency_key":"duplicate"}',
+            deadline=str(time.time() + 3),
+        )
+        assert status == 400
+        assert b"HTTP_JSON_DUPLICATE_KEY" in payload
+
+        status, payload = post(
+            b'{"request":{},"idempotency_key":NaN}', deadline=str(time.time() + 3)
+        )
+        assert status == 400
+        assert b"HTTP_JSON_NON_FINITE" in payload
+
+        status, payload = post(b"{}", deadline=str(time.time() - 1))
+        assert status == 408
+        assert b"HTTP_DEADLINE_EXPIRED" in payload
+    finally:
+        _stop(server, thread)
+
+
+def test_internal_errors_do_not_return_tracebacks_exception_text_or_tokens(tmp_path):
+    service = fixture_service(tmp_path)
+    original = service.get_task
+
+    def fail(_identity, _task_id):
+        raise RuntimeError("user-token-012345678901234567890123456789 super-secret traceback bait")
+
+    service.get_task = fail
+    server, thread = _running_server(service)
+    try:
+        connection = HTTPConnection("127.0.0.1", server.server_port, timeout=3)
+        connection.request(
+            "GET",
+            "/v1/tasks/task-example",
+            headers={
+                "Authorization": "Bearer user-token-012345678901234567890123456789",
+                "X-AIOS-Deadline": str(time.time() + 3),
+            },
+        )
+        response = connection.getresponse()
+        payload = response.read().decode()
+        connection.close()
+        assert response.status == 500
+        assert json.loads(payload) == {"error": {"code": "HTTP_INTERNAL_ERROR"}}
+        assert "secret" not in payload.lower()
+        assert "traceback" not in payload.lower()
+        assert "user-token-012345678901234567890123456789" not in payload
+    finally:
+        service.get_task = original
+        _stop(server, thread)
+
+
+def test_transport_is_loopback_only_and_rejects_redirects():
+    with pytest.raises(TransportError, match="TRANSPORT_LOOPBACK_REQUIRED"):
+        HttpTransport("http://example.com:8080", "token-012345678901234567890123456789")
+
+    aios_server = serve(object(), {"worker-token-012345678901234567890123456789": WORKER}, port=0)
+    aios_thread = threading.Thread(target=aios_server.serve_forever, daemon=True)
+    aios_thread.start()
+    try:
+        connection = HTTPConnection("127.0.0.1", aios_server.server_port, timeout=3)
+        connection.request(
+            "PUT",
+            "/v1/workers/execute",
+            body=b"{}",
+            headers={
+                "Authorization": "Bearer worker-token-012345678901234567890123456789",
+                "Content-Type": "application/json",
+                "X-AIOS-Deadline": str(time.time() + 3),
+            },
+        )
+        response = connection.getresponse()
+        payload = response.read()
+        connection.close()
+        assert response.status == 405
+        assert json.loads(payload) == {"error": {"code": "HTTP_METHOD_NOT_ALLOWED"}}
+        assert response.headers["Content-Type"] == "application/json"
+    finally:
+        _stop(aios_server, aios_thread)
+
+    class Redirect(BaseHTTPRequestHandler):
+        def do_GET(self):
+            self.send_response(302)
+            self.send_header("Location", "/elsewhere")
+            self.send_header("Content-Length", "0")
+            self.end_headers()
+
+        def log_message(self, *_args):
+            return
+
+    redirector = ThreadingHTTPServer(("127.0.0.1", 0), Redirect)
+    thread = threading.Thread(target=redirector.serve_forever, daemon=True)
+    thread.start()
+    try:
+        transport = HttpTransport(f"http://127.0.0.1:{redirector.server_port}", "token-012345678901234567890123456789")
+        with pytest.raises(TransportError, match="TRANSPORT_REDIRECT_REJECTED"):
+            transport.get_task("task-a")
+    finally:
+        _stop(redirector, thread)
+
+
+def test_worker_run_forever_uses_stop_event_wait_and_stops(tmp_path):
+    service = fixture_service(tmp_path)
+    server, server_thread = _running_server(service)
+    stop = threading.Event()
+    worker = OperationWorker(
+        HttpTransport(f"http://127.0.0.1:{server.server_port}", "worker-token-012345678901234567890123456789"),
+        poll_seconds=0.01,
+        stop_event=stop,
+    )
+    thread = threading.Thread(target=worker.run_forever, daemon=True)
+    try:
+        thread.start()
+        deadline = time.time() + 2
+        while not worker.registered and time.time() < deadline:
+            time.sleep(0.01)
+        assert worker.registered is True
+        stop.set()
+        thread.join(timeout=1)
+        assert not thread.is_alive()
+    finally:
+        stop.set()
+        thread.join(timeout=1)
+        _stop(server, server_thread)

tests/baseline_v1_1/test_worker_host.py

@@ -0,0 +1,71 @@
+from pathlib import Path
+import os
+import sys
+import time
+import pytest
+
+from aios_baseline.worker_policy import WorkerProfile, eligible
+from aios_baseline.host import SystemdHost, HostError
+
+
+def profile(**changes):
+    value = dict(worker_id='worker-a', identity='machine-a', tenant_scope=['tenant-a'],
+                 subject_scope=['user-a'], capabilities=['service-status'], priority=10,
+                 fallback_executor=True, heartbeat_seconds=15, max_concurrency=1)
+    value.update(changes)
+    return WorkerProfile.from_dict(value)
+
+
+def test_fallback_expands_only_after_ready_deadline():
+    task = dict(tenant_id='tenant-a', subject_id='user-a', operation='service-status', ready_at=100)
+    assert not eligible(profile(), task, now=699, last_heartbeat=699)
+    assert eligible(profile(), task, now=700, last_heartbeat=700)
+    assert eligible(profile(fallback_executor=False), task, now=101, last_heartbeat=101)
+    assert not eligible(profile(), task, now=700, last_heartbeat=640)
+
+
+def test_fallback_cannot_expand_tenant_subject_or_capability():
+    task = dict(tenant_id='tenant-a', subject_id='user-b', operation='service-status', ready_at=100)
+    assert not eligible(profile(), task, now=800, last_heartbeat=800)
+    assert not eligible(profile(), {**task, 'subject_id':'user-a','tenant_id':'tenant-b'}, now=800, last_heartbeat=800)
+    assert not eligible(profile(), {**task, 'subject_id':'user-a','operation':'service-restart'}, now=800, last_heartbeat=800)
+
+
+def systemctl(tmp_path, body):
+    path = tmp_path / 'systemctl-fixture'
+    path.write_text('#!' + sys.executable + '\n' + body)
+    path.chmod(0o700)
+    return str(path)
+
+
+def test_host_status_uses_real_bounded_process_and_no_ambient_credentials(tmp_path, monkeypatch):
+    executable = systemctl(tmp_path, "import os,sys\nassert 'AIOS_ADMIN_TOKEN' not in os.environ\nassert sys.argv[-1] == 'sample.service'\nprint('Id=sample.service\\nActiveState=active\\nSubState=running\\nMainPID=123\\nInvocationID=abc')\n")
+    monkeypatch.setenv('AIOS_ADMIN_TOKEN','must-not-leak')
+    host = SystemdHost({'tenant-a:staging:sample':'sample.service'}, executable=executable)
+    result = host.status('sample', 'staging',tenant_id='tenant-a')
+    assert result['healthy'] is True
+    assert result['properties']['MainPID'] == '123'
+    assert result['unit'] == 'sample.service'
+    assert 'must-not-leak' not in str(result)
+    with pytest.raises(HostError): host.status('sample; rm -rf /', 'staging',tenant_id='tenant-a')
+
+
+def test_host_nonzero_missing_properties_and_timeout_never_healthy(tmp_path):
+    executable = systemctl(tmp_path, "import sys\nprint('Id=sample.service')\nsys.exit(1)\n")
+    host = SystemdHost({'tenant-a:staging:sample':'sample.service'}, executable=executable)
+    with pytest.raises(HostError): host.status('sample','staging',tenant_id='tenant-a')
+    executable = systemctl(tmp_path, "print('Id=sample.service')\n")
+    with pytest.raises(HostError): host.status('sample','staging',tenant_id='tenant-a')
+    executable = systemctl(tmp_path, "import time\ntime.sleep(5)\n")
+    host = SystemdHost({'tenant-a:staging:sample':'sample.service'}, executable=executable, timeout_seconds=0.1)
+    start = time.monotonic()
+    with pytest.raises(HostError, match='TIMEOUT'): host.status('sample','staging',tenant_id='tenant-a')
+    assert time.monotonic()-start < 2
+
+
+def test_host_kills_output_flood_and_rejects_changed_executable(tmp_path):
+    executable=systemctl(tmp_path,"import sys\nsys.stdout.write('X'*200000)\n")
+    host=SystemdHost({'tenant-a:staging:sample':'sample.service'},executable=executable)
+    with pytest.raises(HostError,match='TOO_LARGE'): host.status('sample','staging',tenant_id='tenant-a')
+    Path(executable).write_text('#!'+sys.executable+'\nraise Exception("new unexpected program")\n')
+    with pytest.raises(HostError,match='IDENTITY_CHANGED'): host.status('sample','staging',tenant_id='tenant-a')

tests/test_agent_task_api_lineage_supersession.py

@@ -0,0 +1,78 @@
+from __future__ import annotations
+
+from pathlib import Path
+import sys
+
+import pytest
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / "active-runtime" / "app"))
+
+import aios_agent_task_api_lineage_supersession as api
+
+
+class FakeController:
+    def __init__(self, db_path, verifier, **kwargs):
+        self.db_path = db_path
+
+    def supersede(self, body):
+        if body.get("fail"):
+            raise api.TaskLineageSupersessionError("SOURCE_TASK_EXACT_CAS_MISMATCH", 409)
+        return {"status": "SUPERSEDED", "idempotent": bool(body.get("replay"))}
+
+
+def test_endpoint_authenticates_before_controller(monkeypatch):
+    calls = []
+    monkeypatch.setattr(api, "TaskLineageSupersessionController", FakeController)
+    endpoint = api.LineageSupersessionEndpoint(
+        "unused.sqlite3", object(), lambda headers: calls.append(dict(headers))
+    )
+    status, result = endpoint.post({"Authorization": "Bearer control"}, {})
+    assert status == 201
+    assert result["status"] == "SUPERSEDED"
+    assert calls == [{"Authorization": "Bearer control"}]
+    assert endpoint.post({}, {"replay": True})[0] == 200
+    assert endpoint.post({}, {"fail": True}) == (
+        409, {"error": "SOURCE_TASK_EXACT_CAS_MISMATCH"}
+    )
+
+
+def test_authentication_failure_prevents_controller(monkeypatch):
+    called = False
+
+    class MustNotRun(FakeController):
+        def supersede(self, body):
+            nonlocal called
+            called = True
+
+    monkeypatch.setattr(api, "TaskLineageSupersessionController", MustNotRun)
+
+    def deny(_headers):
+        raise PermissionError("denied")
+
+    endpoint = api.LineageSupersessionEndpoint("unused", object(), deny)
+    with pytest.raises(PermissionError, match="denied"):
+        endpoint.post({}, {})
+    assert called is False
+
+
+def test_runtime_binding_is_lazy_and_fails_closed_when_overlay_missing(monkeypatch):
+    for name in (
+        "aios_agent_task_api", "aios_agent_task_api_p0_expired_recovery",
+        "aios_agent_task_protocol", "aios_owner_approval_verifier",
+    ):
+        monkeypatch.delitem(sys.modules, name, raising=False)
+    original = __import__
+
+    def blocked(name, *args, **kwargs):
+        if name == "aios_agent_task_api_p0_expired_recovery":
+            raise ImportError(name)
+        return original(name, *args, **kwargs)
+
+    monkeypatch.setattr("builtins.__import__", blocked)
+    with pytest.raises(RuntimeError, match="RUNTIME_OVERLAY_UNAVAILABLE"):
+        api.build_runtime()
+
+
+def test_error_status_is_not_inferred_from_untrusted_text():
+    assert api._status(api.TaskLineageSupersessionError("anything", 403)) == 403

tests/test_aios_gitops_job_identity.py

@@ -0,0 +1,33 @@
+from __future__ import annotations
+
+from pathlib import Path
+import sys
+
+import pytest
+
+
+APP = Path(__file__).resolve().parents[1] / "active-runtime" / "app"
+if str(APP) not in sys.path:
+    sys.path.insert(0, str(APP))
+
+from aios_gitops_job_identity import (  # noqa: E402
+    JobIdentityError,
+    legacy_task_storage_key,
+    task_storage_key,
+)
+
+
+def test_collision_resistant_key_separates_historical_lossy_collision() -> None:
+    first = "TASK/A"
+    second = "TASK:A"
+
+    assert legacy_task_storage_key(first) == legacy_task_storage_key(second) == "TASK-A"
+    assert task_storage_key(first).startswith("TASK-A-")
+    assert task_storage_key(second).startswith("TASK-A-")
+    assert task_storage_key(first) != task_storage_key(second)
+
+
+@pytest.mark.parametrize("value", ["", " task", "task ", "x" * 513, None])
+def test_task_storage_key_rejects_noncanonical_task_identity(value: object) -> None:
+    with pytest.raises(JobIdentityError, match="TASK_ID_INVALID"):
+        task_storage_key(value)  # type: ignore[arg-type]

tests/test_bridge_v2_governed_http_bootstrap.py

@@ -102,6 +102,13 @@ def test_http_route_contract_is_complete():
         "/v2/release/execute",
         "/v2/release/consistency",
         "/v2/release/acceptance",
+        "/v2/repository/tree",
+        "/v2/repository/search",
+        "/v2/repository/diff-index",
+        "/v2/repository/file",
+        "/v2/task-admission/envelope",
+        "/v2/task-admission/authorize",
+        "/v2/task-admission/status",
     }
     from aios_chatgpt_bridge_v2_server import ROUTES
 

tests/test_completed_replay_reconciliation_v7.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import json
 import sqlite3
+from datetime import datetime, timezone
 from concurrent.futures import ThreadPoolExecutor
 from pathlib import Path
 from types import SimpleNamespace
@@ -20,7 +21,9 @@ COMMIT = "1" * 40
 
 def make_store(tmp_path: Path) -> tuple[GitOpsJobController, str, dict]:
     store = JobStore(tmp_path / "job-root")
-    controller = GitOpsJobController(store)
+    controller = GitOpsJobController(
+        store, clock=lambda: datetime(2026, 9, 8, tzinfo=timezone.utc)
+    )
     request = {
         "idempotency_key": "v7-replay",
         "campaign_id": TASK,
@@ -50,7 +53,7 @@ def make_store(tmp_path: Path) -> tuple[GitOpsJobController, str, dict]:
         lineage_anchor_oid=BASE,
         current_head_oid=BASE,
         generation=2,
-        lease_expires_at="2099-01-01T00:00:00Z",
+        lease_expires_at="2026-09-08T00:01:00Z",
         expected_revision=row["revision"],
     )
     with store._connect() as connection:
@@ -295,12 +298,25 @@ def test_real_http_post_carries_external_replay_identity(tmp_path: Path):
 
     observed = {}
     class Adapter:
+        def getRuntimeStatus(self):
+            return {
+                "governed_writes_enabled": True,
+                "legacy_global_writes_enabled": False,
+                "task_principal_writes_enabled": True,
+            }
+
         def commitFilesGoverned(self, body):
             observed.update(body)
             return {"job_id": body["job_id"], "current_head_oid": COMMIT}
 
+    def verify_principal(transport, request):
+        assert transport["operation"] == "commitFilesGoverned"
+        assert transport["headers"]["authorization"] == "Bearer fixture-principal"
+        return {"task_id": request["task_id"], "tenant_id": "fixture"}
+
     server = HTTPServer(("127.0.0.1", 0), BridgeHandler)
     BridgeHandler.adapter = Adapter()
+    BridgeHandler.principal_verifier = verify_principal
     thread = Thread(target=server.serve_forever, daemon=True)
     thread.start()
     body = {
@@ -317,7 +333,15 @@ def test_real_http_post_carries_external_replay_identity(tmp_path: Path):
     }
     try:
         connection = HTTPConnection("127.0.0.1", server.server_port, timeout=5)
-        connection.request("POST", "/v2/commit-files", body=json.dumps(body), headers={"Content-Type": "application/json"})
+        connection.request(
+            "POST",
+            "/v2/commit-files",
+            body=json.dumps(body),
+            headers={
+                "Content-Type": "application/json",
+                "Authorization": "Bearer fixture-principal",
+            },
+        )
         response = connection.getresponse()
         payload = json.loads(response.read().decode())
         connection.close()
@@ -326,6 +350,7 @@ def test_real_http_post_carries_external_replay_identity(tmp_path: Path):
         server.server_close()
         thread.join(timeout=5)
         BridgeHandler.adapter = None
+        BridgeHandler.principal_verifier = None
     assert response.status == 200
     assert observed["job_id"] == EXTERNAL
     assert observed["source_lease_epoch"] == 3

tests/test_control_plane_convergence_contract.py

@@ -218,10 +218,14 @@ def test_revision_cas_and_receipt_are_transactional():
 
 def test_job_lease_mutation_is_transactional_and_revision_bound():
     with tempfile.TemporaryDirectory() as temp:
-        controller = GitOpsJobController(JobStore(temp))
+        controller = GitOpsJobController(
+            JobStore(temp),
+            clock=lambda: datetime(2026, 8, 7, 23, 59, tzinfo=timezone.utc),
+        )
         req = {"campaign_id": "campaign", "repository": "aios/aios", "operation": "commit-file", "branch": request().target_branch, "expected_branch_oid": CAMPAIGN_HEAD, "payload_digest": "b" * 64}
         job = controller.submit(req)
-        leased = controller.lease_job(job.job_id, lease_id="lease-1", lineage_anchor_oid=LINEAGE_ANCHOR, current_head_oid=CAMPAIGN_HEAD, generation=1, lease_expires_at="2026-08-08T00:00:00Z", expected_revision=0)
+        authorized = controller.advance(job.job_id, JobState.AUTHORIZED, side_effect_state="AUTHORIZED")
+        leased = controller.lease_job(job.job_id, lease_id="lease-1", lineage_anchor_oid=LINEAGE_ANCHOR, current_head_oid=CAMPAIGN_HEAD, generation=1, lease_expires_at="2026-08-08T00:00:00Z", expected_revision=authorized.revision)
         assert leased.state == JobState.LEASED
         controller.update_lease("lease-1", expected_revision=0, current_head_oid="c" * 40, generation=1)
         with pytest.raises(JobError, match="LEASE_REVISION_CAS_CONFLICT"):

tests/test_isolated_writer_exact_path_policy.py

@@ -229,6 +229,10 @@ class ExactPathPolicyTests(unittest.TestCase):
         os.environ["AIOS_GITOPS_SERVICE_AUDIENCE"] = "other.service"
         path_policy.clear_path_policy_cache()
         with mock.patch.object(
+            path_policy.grp,
+            "getgrnam",
+            return_value=mock.Mock(gr_gid=os.getgid()),
+        ), mock.patch.object(
             path_policy, "load_path_policy", return_value=loaded
         ), self.assertRaisesRegex(
             path_policy.PathPolicyError,
@@ -242,6 +246,10 @@ class ExactPathPolicyTests(unittest.TestCase):
         os.environ["AIOS_GITOPS_ALLOWED_BRANCH"] = "patch/other"
         path_policy.clear_path_policy_cache()
         with mock.patch.object(
+            path_policy.grp,
+            "getgrnam",
+            return_value=mock.Mock(gr_gid=os.getgid()),
+        ), mock.patch.object(
             path_policy, "load_path_policy", return_value=loaded
         ), self.assertRaisesRegex(
             path_policy.PathPolicyError,

tests/test_live_executor_contract.py

@@ -1,12 +1,14 @@
 from __future__ import annotations
 
 import tempfile
+from types import SimpleNamespace
 from pathlib import Path
 
 import pytest
 
 import aios_gitops_job_executor as executor_module
 from aios_authority_git_executor import AuthorityGitError, AuthorityGitExecutor
+import aios_gitea_machine_transport as gitea_transport_module
 from aios_gitea_machine_transport import GiteaMachineTransport
 from aios_gitea_machine_broker import CampaignCapabilityReceipt, GiteaMachineBroker, MachineCredentialProjection
 from aios_gitops_job_controller import GitOpsJobController, JobError, JobStore, JobState
@@ -162,3 +164,77 @@ def test_machine_transport_branch_cas_is_not_force_push(monkeypatch):
     monkeypatch.setattr(GiteaMachineTransport, "_push_branch_fast_forward", lambda _self, branch, new: calls.append((branch, new)))
     assert transport.compare_and_swap_branch(executor_module.BRANCH, OLD, NEW) == NEW
     assert calls == [(executor_module.BRANCH, NEW)]
+
+
+def test_machine_transport_fetches_exact_branch_tip_into_quarantine_ref(monkeypatch, tmp_path):
+    transport = GiteaMachineTransport(
+        "http://127.0.0.1:3000/api/v1",
+        "aios/aios",
+        "https://g.cnnetmkt.top/git/aios/aios.git",
+        tmp_path / "repo.git",
+    )
+    reads = iter([NEW, NEW])
+    monkeypatch.setattr(
+        GiteaMachineTransport,
+        "read_branch",
+        lambda _self, _branch: next(reads),
+    )
+    askpass = tmp_path / "askpass"
+    askpass.write_text("#!/bin/sh\n", encoding="utf-8")
+    monkeypatch.setattr(
+        GiteaMachineTransport,
+        "_askpass",
+        lambda _self: (askpass, {}),
+    )
+    calls = []
+
+    def run(argv, **kwargs):
+        calls.append(list(argv))
+        if "fetch" in argv:
+            return SimpleNamespace(returncode=0, stdout="", stderr="")
+        if "rev-parse" in argv:
+            # Before fetch the quarantine ref is absent; after fetch it resolves.
+            seen_fetch = any("fetch" in call for call in calls[:-1])
+            return SimpleNamespace(
+                returncode=0 if seen_fetch else 1,
+                stdout=(NEW + "\n") if seen_fetch else "",
+                stderr="",
+            )
+        if "update-ref" in argv:
+            return SimpleNamespace(returncode=0, stdout="", stderr="")
+        raise AssertionError(argv)
+
+    monkeypatch.setattr(gitea_transport_module.subprocess, "run", run)
+
+    assert transport.fetch_branch_exact(executor_module.BRANCH, NEW) == NEW
+    fetch = next(call for call in calls if "fetch" in call)
+    assert "--no-tags" in fetch
+    assert "--no-write-fetch-head" in fetch
+    assert f"refs/heads/{executor_module.BRANCH}:refs/aios/release-sources/{NEW}" in fetch
+    assert not any("--force" in item or item == "-f" for item in fetch)
+
+
+def test_machine_transport_does_not_fetch_when_remote_tip_moved(monkeypatch, tmp_path):
+    transport = GiteaMachineTransport(
+        "http://127.0.0.1:3000/api/v1",
+        "aios/aios",
+        "https://g.cnnetmkt.top/git/aios/aios.git",
+        tmp_path / "repo.git",
+    )
+    monkeypatch.setattr(
+        GiteaMachineTransport,
+        "read_branch",
+        lambda _self, _branch: OLD,
+    )
+    monkeypatch.setattr(
+        gitea_transport_module.subprocess,
+        "run",
+        lambda *args, **kwargs: (_ for _ in ()).throw(
+            AssertionError("git must not run after remote mismatch")
+        ),
+    )
+    with pytest.raises(
+        gitea_transport_module.GiteaTransportError,
+        match="GITEA_SOURCE_REF_MISMATCH",
+    ):
+        transport.fetch_branch_exact(executor_module.BRANCH, NEW)

tests/test_owner_merge_authorization_server_v2.py

@@ -0,0 +1,176 @@
+from __future__ import annotations
+
+import json
+import os
+from pathlib import Path
+
+import pytest
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric.ed25519 import Ed25519PrivateKey
+
+from aios_owner_merge_authorization import (
+    OwnerMergeApprovalError,
+    OwnerMergeApprovalPolicy,
+    OwnerMergeApprovalVerifier,
+)
+from aios_owner_merge_authorization_server import OwnerMergeApprovalService
+from aios_single_host_authority import (
+    RegistryOwnerApprovalVerifier,
+    ssh_fingerprint,
+    ssh_public_line,
+)
+
+
+NOW = 2_000_000_000
+
+
+def _write_key(path: Path, key: Ed25519PrivateKey) -> None:
+    path.write_bytes(
+        key.private_bytes(
+            serialization.Encoding.PEM,
+            serialization.PrivateFormat.PKCS8,
+            serialization.NoEncryption(),
+        )
+    )
+    os.chmod(path, 0o600)
+
+
+@pytest.fixture
+def service_env(tmp_path: Path):
+    owner_key = Ed25519PrivateKey.generate()
+    owner_path = tmp_path / "owner.key"
+    _write_key(owner_path, owner_key)
+    registry_path = tmp_path / "registry.json"
+    registry_path.write_text(
+        json.dumps(
+            {
+                "schema": "aios.single-host-signer-registry.v1",
+                "authority_generation": 1,
+                "signers": [
+                    {
+                        "signer_id": "local-owner-authority",
+                        "role": "OWNER_AUTHORITY",
+                        "provider": "local_unix_service",
+                        "fingerprint": ssh_fingerprint(owner_key.public_key()),
+                        "public_key": ssh_public_line(owner_key.public_key(), "owner"),
+                        "socket": "/run/aios/owner-authority.sock",
+                        "secret_ref": "aios-secret://owner",
+                        "status": "ACTIVE",
+                        "generation": 1,
+                        "parent_signer_id": "",
+                        "parent_fingerprint": "",
+                    }
+                ],
+            },
+            sort_keys=True,
+        )
+        + "\n"
+    )
+    os.chmod(registry_path, 0o644)
+    policy = OwnerMergeApprovalPolicy(
+        repository="aios/aios",
+        pr_number=75,
+        pr_head_oid="a" * 40,
+        expected_main_oid="b" * 40,
+        operation="merge.pull-request",
+        required_check_contract_digest="c" * 64,
+        required_checks=("contract", "security"),
+        owner_identity="owner:aios-single-host",
+        audit_lineage_digest="d" * 64,
+        maximum_ttl_seconds=300,
+    )
+    policy_path = tmp_path / "policy.json"
+    policy_path.write_text(json.dumps(policy.as_dict(), sort_keys=True) + "\n")
+    os.chmod(policy_path, 0o600)
+    return {
+        "policy": policy,
+        "policy_path": policy_path,
+        "registry_path": registry_path,
+        "owner_path": owner_path,
+        "ledger_path": tmp_path / "issuance.sqlite3",
+    }
+
+
+def _service(env):
+    return OwnerMergeApprovalService(
+        policy_path=env["policy_path"],
+        registry_path=env["registry_path"],
+        owner_key_path=env["owner_path"],
+        issuance_ledger_path=env["ledger_path"],
+        allowed_uids=(1000,),
+        require_root_owner=False,
+        clock=lambda: NOW,
+        token_urlsafe=lambda _size: "server-generated-nonce",
+    )
+
+
+def test_service_issues_exact_owner_approval_and_exact_replay_is_audit_idempotent(service_env):
+    service = _service(service_env)
+    request = {"operation": "issue_owner_merge_approval", "payload": {}}
+
+    first = service.handle(request, peer_uid=1000)
+    second = _service(service_env).handle(request, peer_uid=1000)
+
+    assert first["status"] == "PASS"
+    assert first["idempotent"] is False
+    assert second["idempotent"] is True
+    assert second["artifact"] == first["artifact"]
+    verifier = OwnerMergeApprovalVerifier(
+        primary=RegistryOwnerApprovalVerifier(
+            service_env["registry_path"], require_root_owner=False
+        ),
+        clock=lambda: NOW,
+    )
+    payload, proof_path = verifier.verify(first["artifact"], service_env["policy"])
+    assert proof_path == "primary"
+    assert payload["repository"] == "aios/aios"
+    assert payload["pr_number"] == 75
+
+
+def test_expired_approval_is_retained_for_audit_but_reissued_with_a_new_nonce(service_env):
+    clock = [NOW]
+    token_values = iter(("approval-one", "nonce-one", "approval-two", "nonce-two"))
+    service = OwnerMergeApprovalService(
+        policy_path=service_env["policy_path"],
+        registry_path=service_env["registry_path"],
+        owner_key_path=service_env["owner_path"],
+        issuance_ledger_path=service_env["ledger_path"],
+        allowed_uids=(1000,),
+        require_root_owner=False,
+        clock=lambda: clock[0],
+        token_urlsafe=lambda _size: next(token_values),
+    )
+    request = {"operation": "issue_owner_merge_approval", "payload": {}}
+
+    first = service.handle(request, peer_uid=1000)
+    clock[0] += service_env["policy"].maximum_ttl_seconds
+    second = service.handle(request, peer_uid=1000)
+
+    assert first["idempotent"] is False
+    assert second["idempotent"] is False
+    assert second["artifact"]["payload"]["nonce"] != first["artifact"]["payload"]["nonce"]
+    assert second["artifact"]["payload"]["issued_at"] == clock[0]
+
+
+@pytest.mark.parametrize(
+    "raw_request",
+    [
+        {"operation": "issue_owner_merge_approval", "payload": {"nonce": "caller-nonce"}},
+        {"operation": "issue_owner_merge_approval", "payload": {"pr_head_oid": "f" * 40}},
+        {"operation": "sign", "payload": {}},
+        {"operation": "sign_bytes", "payload": {}},
+    ],
+)
+def test_service_rejects_caller_selected_scope_and_generic_signing(service_env, raw_request):
+    service = _service(service_env)
+
+    with pytest.raises(OwnerMergeApprovalError, match="OWNER_MERGE_ISSUER_"):
+        service.handle(raw_request, peer_uid=1000)
+
+
+def test_service_rejects_untrusted_peer_before_issuing_anything(service_env):
+    with pytest.raises(OwnerMergeApprovalError, match="OWNER_MERGE_ISSUER_PEER_UID_FORBIDDEN"):
+        _service(service_env).handle(
+            {"operation": "issue_owner_merge_approval", "payload": {}},
+            peer_uid=2000,
+        )