{
  "schema": "DAT008_PROBE_CASES_v1",
  "probes": [
    {
      "id": "CONFIG_MISMATCH",
      "input": "resetting passwords",
      "purpose": "Expose normalization/stemming sensitivity by comparing an explicit baseline configuration with a deliberately mismatched one.",
      "pre_solved": false
    },
    {
      "id": "STOPWORD_HEAVY",
      "input": "the and a",
      "purpose": "Observe dictionary/stop-word behavior without generalizing beyond the selected configuration.",
      "pre_solved": false
    },
    {
      "id": "RANKING_NOT_TRUTH",
      "query_id": "Q2",
      "hard_negative_doc_ids": [
        7
      ],
      "purpose": "Compare rank ordering with fixture relevance labels; rank is not ground truth.",
      "pre_solved": false
    },
    {
      "id": "INDEX_PLAN",
      "query_id": "Q1",
      "purpose": "Capture EXPLAIN after an explicit index decision; index existence does not guarantee planner use.",
      "pre_solved": false
    }
  ]
}