{
  "schema": 1,
  "scope": [
    "以下流程与样例由本站设计；样例均为虚构教学输入，参考文件不是产品运行记录。",
    "Workflows and samples are designed for this site. Inputs are fictional teaching material; references are not product execution records."
  ],
  "fictional": true,
  "dataset": {
    "name": "RiverAssistant eval set v0 (fictional)",
    "version": "v0",
    "sample_count": 10,
    "synthetic": true,
    "provenance": "written for this page; not exported from production logs and not a public benchmark"
  },
  "metric_draft": {
    "name": "accuracy",
    "numerator": "judged rows that pass",
    "denominator": "not decided yet",
    "unjudged_handling": "not decided yet"
  },
  "baseline_version": null,
  "model_identifier": null,
  "prompt_revision": null,
  "cost_estimate": {
    "fictional": true,
    "runs_per_week": 3,
    "estimated_cost_usd_per_run": 0.42,
    "estimated_wall_clock_minutes_per_run": 12,
    "basis": "fictional planning estimate for this exercise, not a vendor price or measured throughput"
  },
  "cases": [
    {
      "name": "judged rows only",
      "rows": [
        {
          "passed": true
        },
        {
          "passed": true
        },
        {
          "passed": false
        },
        {
          "passed": false
        }
      ],
      "expected": 0.5
    },
    {
      "name": "two unjudged rows mixed in",
      "rows": [
        {
          "passed": true
        },
        {
          "passed": null
        },
        {
          "passed": false
        },
        {
          "passed": null
        }
      ],
      "expected": 0.5
    },
    {
      "name": "nothing judged",
      "rows": [
        {
          "passed": null
        },
        {
          "passed": null
        }
      ],
      "expected": null
    }
  ]
}