{
  "task_id": "DEV-000144",
  "task_revision": 1,
  "architecture_revision": "ADR-0018",
  "base_repo_revision": "23b04aa",
  "risk_tier": "E",
  "intent": "Expose explainable runtime fleet readiness and explicit fallback tier from live provider probes.",
  "requirement_ids": ["WP-203", "WP-601", "Model fleet/failover"],
  "allowed_change_scope": {"modules": ["capability", "cognitive-worker"], "paths": ["contracts/capability/fleet.go", "cmd/cognitive-worker/**", "tests/cognitive_registry/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000144-fleet-readiness-runtime.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": ["FleetReadiness and SelectFleetTier"], "may_change": ["JSON projection and live probe endpoint"]},
  "semantic_owner": "capability and cognitive-worker",
  "canonical_state": [],
  "state_transitions": ["live provider probes -> typed member states -> preferred tier or explicit Lifeboat fallback"],
  "side_effects_and_privileges": ["Read-only HTTP probes only"],
  "persistence_and_migrations": ["None"],
  "failure_retry_restart": ["Each request re-probes providers; no in-memory health authority"],
  "assumptions": ["Lifeboat is the explicit fallback tier"],
  "acceptance_scenarios": ["unavailable CPU/GPU selects Lifeboat", "unconfigured Medium is visible", "no fallback returns typed 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"]
}