{
  "trace_id": "f10-c06-bad-0001",
  "status": "block",
  "errors": [
    "missing field: dataset_version",
    "missing component score: abstention",
    "hard gate failed: supported_claims"
  ],
  "warnings": [],
  "computed_reward": null,
  "contributions": {},
  "required_fields": [
    "trace_id",
    "run_at",
    "policy_version",
    "reward_card_version",
    "input_slice",
    "candidate_id",
    "component_scores",
    "hard_gates",
    "reward",
    "winner",
    "latency_ms",
    "input_tokens",
    "output_tokens",
    "grader_versions",
    "dataset_version"
  ]
}