{
  "schema_version": 2,
  "manifest_ref": "recommendation:promptshift",
  "method": "promptshift",
  "dataset": "deterministic public mechanism mini-suite",
  "seeds": [
    42,
    43,
    44
  ],
  "diagnostic_only": true,
  "seed_results": [
    {
      "seed": 42,
      "drift": 0.18055555555555555,
      "slice_shift": -0.175,
      "difficulty_at_k": 0.7
    },
    {
      "seed": 43,
      "drift": 0.18055555555555555,
      "slice_shift": -0.175,
      "difficulty_at_k": 0.7
    },
    {
      "seed": 44,
      "drift": 0.18055555555555555,
      "slice_shift": -0.175,
      "difficulty_at_k": 0.7
    }
  ],
  "aggregate_metrics": {
    "seed_mean": 43.0,
    "drift_mean": 0.18055555555555555,
    "slice_shift_mean": -0.17499999999999996,
    "difficulty_at_k_mean": 0.6999999999999998
  },
  "evaluation_protocol": {
    "tier": "l1_mechanism",
    "formal_comparison": false,
    "diagnostic_only": true,
    "claim_policy": "mechanism execution and invariants only",
    "seeds": [
      42,
      43,
      44
    ]
  },
  "provenance": {
    "artifact_path": "docs/reproductions/2609.34229-promptshift/metrics/mechanism-seeds42-44.json",
    "dataset_fingerprint": "sep30-closure-public-fixtures-v1",
    "original_code_commit": "working tree"
  }
}