{
  "task_id": "DEV-000141",
  "task_revision": 2,
  "architecture_revision": "ADR-0018",
  "base_repo_revision": "38cff16",
  "risk_tier": "E",
  "intent": "Keep cognitive readiness available when an optional opportunistic fleet member is unavailable while preserving typed degraded evidence.",
  "requirement_ids": ["WP-003", "WP-203", "Fleet failover readiness"],
  "allowed_change_scope": {"modules": ["runtime-health", "cognitive-worker"], "paths": ["runtime/health/**", "cmd/cognitive-worker/main.go", "runtime/health/server_test.go", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000141-optional-fleet-readiness.json"]},
  "forbidden_change_scope": {"paths": ["architecture/**", "database/**", "deploy/**", "security/**", ".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": 0},
  "contracts": {"consume": ["Existing readiness Probe and typed readiness response"], "may_change": ["Optional dependency probe behavior"]},
  "semantic_owner": "runtime-health and cognitive-worker",
  "canonical_state": [],
  "state_transitions": ["optional provider unavailable -> readiness remains ready with typed degraded check", "required dependency unavailable -> readiness remains degraded"],
  "side_effects_and_privileges": ["No external mutation; no provider invocation"],
  "persistence_and_migrations": ["None"],
  "failure_retry_restart": ["Optional provider can recover on subsequent readiness probe"],
  "assumptions": ["CPU/Lifeboat remains a qualified fallback when opportunistic GPU is unavailable"],
  "acceptance_scenarios": ["GPU timeout does not hide degraded evidence or make fallback unavailable", "required dependency failure still returns 503"],
  "required_tests": ["go test ./...", "go vet ./...", "preflight", "check-diff", "check-architecture", "independent", "git diff --check", "docker compose config"],
  "terminal_gap_states": ["BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_CONFLICT"]
}