{
  "id": "science-retrieval",
  "version": "1.0.0",
  "title": "科学数据检索与来源证据",
  "summary": "检索到的记录必须能回答两个问题：什么时候为真、是不是同一批字节。",
  "steps": [
    "science_query",
    "connector_drift_check"
  ],
  "permissions": [
    "network:science"
  ],
  "artifacts": [],
  "failure_conditions": [
    "哈希不是上游原始字节",
    "记录的长度不是到达长度"
  ],
  "cases": [
    {
      "id": "science-retrieval/provenance",
      "title": "哈希等于上游原始 body",
      "outcome": "provenance",
      "inputs": {
        "science_query": {
          "database": "uniprot",
          "query": "insulin"
        }
      },
      "expect": {
        "count": 1,
        "hashed": "response_bytes"
      }
    },
    {
      "id": "science-retrieval/drift",
      "title": "required 字段被置 null 视为 drift",
      "outcome": "success",
      "inputs": {
        "connector_drift_check": {
          "drop_required": true
        },
        "science_query": {
          "drop_required": true
        }
      },
      "expect": {
        "missing_required__len": 1
      }
    }
  ]
}