{
  "provenance": "Actual filter-handler execution. Inputs and rubric scores are authored fixtures, not model output or independently calibrated judgments.",
  "result": {
    "topic": "Cell biology",
    "kind": "question-and-answer pairs",
    "rubric": [
      "correctness",
      "specificity",
      "clarity"
    ],
    "items": [
      {
        "content": "A cell contains genetic material and uses energy.",
        "scores": {
          "correctness": 4.0,
          "specificity": 4.0,
          "clarity": 5.0
        },
        "mean": 4.33,
        "pass": true,
        "duplicate": false,
        "note": ""
      },
      {
        "content": "A cell uses energy and contains genetic material.",
        "scores": {
          "correctness": 4.0,
          "specificity": 4.0,
          "clarity": 5.0
        },
        "mean": 4.33,
        "pass": false,
        "duplicate": true,
        "note": ""
      },
      {
        "content": "A mitochondrion is a city-sized rock.",
        "scores": {
          "correctness": 1.0,
          "specificity": 2.0,
          "clarity": 4.0
        },
        "mean": 2.33,
        "pass": false,
        "duplicate": false,
        "note": ""
      }
    ],
    "n": 3,
    "unique": 2,
    "pass_rate": 0.33,
    "criteria_avg": {
      "correctness": 3.0,
      "specificity": 3.33,
      "clarity": 4.67
    },
    "threshold": 3.5
  }
}