{
  "id": "evidence-package",
  "version": "1.0.0",
  "title": "证据包导出与验证",
  "summary": "一次科研运行的可交付物：带 manifest、hash 与复现说明的会话包，且在干净环境可验证。",
  "steps": [
    "open_session",
    "save_artifact",
    "export_session_package"
  ],
  "permissions": [
    "workspace:read"
  ],
  "artifacts": [
    "result.csv",
    "session.zip"
  ],
  "failure_conditions": [
    "包无法通过自身校验",
    "manifest 未覆盖全部成员"
  ],
  "cases": [
    {
      "id": "evidence-package/verifies",
      "title": "导出的包能通过验证器",
      "outcome": "success",
      "inputs": {
        "save_artifact": {
          "filename": "result.csv",
          "content": "score\n0.93\n",
          "as": "result"
        }
      },
      "expect": {
        "files_verified__truthy": true
      }
    },
    {
      "id": "evidence-package/tamper",
      "title": "改一个字节验证器必须拒绝",
      "outcome": "provenance",
      "inputs": {
        "save_artifact": {
          "filename": "result.csv",
          "content": "score\n0.93\n",
          "as": "result"
        }
      },
      "expect": {
        "problems__truthy": true
      },
      "steps": [
        "open_session",
        "save_artifact",
        "export_session_package",
        "tamper_with_package"
      ]
    }
  ]
}