{
  "plan_id": "policy_candidate_v4_rollout_bad",
  "feature_flag": "rl_policy_router_v4",
  "policy_candidate_version": "policy_candidate_v4",
  "reward_card_version": "1.0.0",
  "owner": "ml-platform",
  "stages": [
    {
      "name": "pilot_25",
      "traffic_pct": 25,
      "min_duration_minutes": 60,
      "exit_criteria": ["reward_mean"]
    }
  ],
  "rollback": {
    "ready": false,
    "decision": "manual_redeploy",
    "max_minutes_to_restore": 90,
    "conditions": []
  },
  "trace_sample": {
    "trace_id": "trace-002",
    "policy_version": "policy_stable_v3",
    "policy_candidate_version": "policy_candidate_v4",
    "reward_card_version": "1.0.0",
    "input_slice": "rag",
    "action": "large_reasoning_model",
    "reward": 0.58,
    "hard_gates": {"valid_output_contract": true},
    "latency_ms": 3100
  }
}