{
  "task_id": "DEV-000121",
  "task_revision": 1,
  "architecture_revision": "ADR-0018",
  "base_repo_revision": "f792d20",
  "risk_tier": "E",
  "intent": "Add work-owned durable persistence schema for dispatch intents, leases and callback sequence heads, with repository write boundaries.",
  "requirement_ids": ["WP-301", "Durable dispatch persistence", "Atomic lease/fencing state"],
  "allowed_change_scope": {"modules": ["work-agent-execution", "work-storage"], "paths": ["database/migrations/029_work_agent_execution_persistence.sql", "adapters/postgres/work_repository.go", "tests/agent_execution/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000121-agent-execution-persistence.json"]},
  "forbidden_change_scope": {"paths": ["architecture/**", "security/**", "deploy/**", "cmd/**", "runtime/**", "adapters/continuity*", "adapters/capability*", ".gitea/**"]},
  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 0, "new_third_party_dependencies": 0, "new_database_owner_roles": 1},
  "contracts": {"consume": ["DEV-000120 dispatch intent", "DEV-000116 lease/fencing", "DEV-000117 callback sequence"], "may_change": ["Work-owned persistence schema and repository methods"]},
  "semantic_owner": "work-agent-execution",
  "canonical_state": ["work.agent_dispatch_intents", "work.agent_leases", "work.agent_callback_heads"],
  "state_transitions": ["dispatch intent persisted idempotently", "lease acquired/renewed with fencing token", "callback sequence advanced atomically"],
  "side_effects_and_privileges": ["Work schema writes only through Work repository; no cross-owner SQL"],
  "persistence_and_migrations": ["Append-only migration 029; work_role only"],
  "failure_retry_restart": ["Duplicate idempotency key is reconciled; lease conflict is rejected; callback sequence uses row lock/conditional update"],
  "assumptions": ["Migration is reviewed and applied before runtime enablement", "Production deployment is a later canary task", "No secrets are stored in dispatch payload"],
  "acceptance_scenarios": ["Duplicate dispatch cannot create a second intent", "Expired/wrong lease cannot advance", "Out-of-order callback sequence is rejected", "Work owner boundaries remain intact"],
  "required_tests": ["go test ./...", "go vet ./...", "go run ./cmd/devctl preflight -active dev/ACTIVE_TASK.json", "go run ./cmd/devctl check-diff -active dev/ACTIVE_TASK.json", "go run ./cmd/devctl check-architecture", "go run ./cmd/devctl/independent", "git diff --check", "migration/repository tests"],
  "terminal_gap_states": ["BLOCKED_BY_MIGRATION_DECISION", "BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_CONFLICT"]
}