{
  "task_id": "DEV-000220",
  "task_revision": 1,
  "architecture_revision": "ADR-0018",
  "base_repo_revision": "66ed523248ea6cf0a41383e2206d9a70eeaafda8",
  "risk_tier": "E",
  "intent": "Require explicit independent verifier identity and evidence before task evaluation can claim semantic support or non-zero quality.",
  "requirement_ids": ["independent verifier evidence", "no false quality", "typed model qualification"],
  "allowed_change_scope": {"modules": ["capability", "agent-worker"], "paths": ["contracts/capability/task_evaluation.go", "modules/capability/domain/task_evaluation.go", "modules/capability/domain/task_evaluation_test.go", "cmd/agent-worker/task_evaluation_executor_test.go", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000220-verifier-evidence-boundary.json"]},
  "forbidden_change_scope": {"paths": ["architecture/**", "security/**", "database/**", "deploy/**", "cmd/cognitive-worker/**", "LLM-local/**"]},
  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 0, "new_third_party_dependencies": 0, "new_database_owner_roles": 0},
  "contracts": {"consume": ["TaskCaseObservation", "TaskEvaluation", "existing Work Graph callback"], "may_change": ["typed observation fields for verifier evidence"]},
  "semantic_owner": "capability owns qualification evidence; verifier remains independent of provider invocation",
  "canonical_state": ["existing capability task-evaluation evidence"],
  "state_transitions": ["reachability UNKNOWN -> separately verified SUPPORTED only with evidence"],
  "side_effects_and_privileges": ["no provider invocation or external mutation"],
  "persistence_and_migrations": ["existing task evaluation persistence is unchanged"],
  "failure_retry_restart": ["missing verifier fields fail closed; unknown reachability remains non-promotable"],
  "assumptions": ["a later verifier runtime will produce VerificationEvidenceRef and VerifierIdentity"],
  "acceptance_scenarios": ["supported without verifier is rejected", "unknown with zero quality remains valid", "verified supported observation aggregates normally", "no hardware/provider name bypasses the boundary"],
  "required_tests": ["go test", "go vet", "preflight", "check-diff", "check-architecture", "independent", "git diff --check", "CI", "production public health check"],
  "terminal_gap_states": ["BLOCKED_BY_MISSING_CAPABILITY", "BLOCKED_BY_SPEC_GAP"]
}