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            "matched_tokens": [
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            "matched_count": 3,
            "query_token_count": 21
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          "coverage_score": 0.14285714285714285,
          "rerank_rank": 3
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      ],
      "scores_in_candidate_order": [
        -9.05154800415039,
        -0.3321734070777893,
        1.8146166801452637
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      "cross_encoder": [
        {
          "chunk_id": "c66643a4609c6ee157458bf4353f7446b9c6a200a3ef453846d6a18d5b5069a7",
          "source_id": "path-write",
          "version": "3.12",
          "url": "https://docs.python.org/3.12/library/pathlib.html#pathlib.Path.write_text",
          "text": "Path.write_text(data, encoding=None, errors=None, newline=None) writes text to a file and closes it. Set encoding=\"utf-8\" to select UTF-8. An existing file is overwritten. The method returns the number of characters written.",
          "incoming_rank": 3,
          "cross_encoder_logit": 1.8146166801452637,
          "cross_encoder_rank": 1
        },
        {
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          "source_id": "path-read",
          "version": "3.12",
          "url": "https://docs.python.org/3.12/library/pathlib.html#pathlib.Path.read_text",
          "text": "Path.read_text(encoding=None, errors=None) opens a file, returns its text as a string and closes the file. Set encoding=\"utf-8\" when reading a UTF-8 file.",
          "incoming_rank": 2,
          "cross_encoder_logit": -0.3321734070777893,
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        {
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          "source_id": "json-text",
          "version": "3.12",
          "url": "https://docs.python.org/3.12/library/json.html#json.dumps",
          "text": "json.dumps(obj, ensure_ascii=True) returns a JSON string. Setting ensure_ascii=False leaves non-ASCII characters in that string. It does not write a file or select the encoding used by a file writer.",
          "incoming_rank": 1,
          "cross_encoder_logit": -9.05154800415039,
          "cross_encoder_rank": 3
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      "inference_seconds": 0.018804915947839618,
      "outcome": {
        "coverage": {
          "top1_hit": true,
          "reciprocal_rank": 1.0
        },
        "cross_encoder": {
          "top1_hit": true,
          "reciprocal_rank": 1.0
        }
      }
    }
  ],
  "summary": {
    "diagnostic": {
      "coverage": {
        "answerable": 3,
        "top1_hits": 2,
        "mrr": 0.7777777777777778
      },
      "cross_encoder": {
        "answerable": 3,
        "top1_hits": 3,
        "mrr": 1.0
      }
    },
    "validation": {
      "coverage": {
        "answerable": 6,
        "top1_hits": 6,
        "mrr": 1.0
      },
      "cross_encoder": {
        "answerable": 6,
        "top1_hits": 6,
        "mrr": 1.0
      }
    }
  },
  "scope": "Raw logits are not calibrated probabilities. Original hybrid candidates are unchanged. Expanded cases use all version-eligible passages in a four-document fixture; diagnostic and validation questions remain separate. This does not establish general retrieval quality, answer truth or support for unsupported questions."
}