[
  {
    "case_id": "terms",
    "output": {
      "days": 30
    },
    "latency_ms": 900,
    "cost_microusd": 1200,
    "citations": [
      {
        "source_id": "policy-v1",
        "quote": "payment terms are 30 days"
      }
    ]
  },
  {
    "case_id": "second-run",
    "output": {
      "days": 60
    }
  }
]