{
  "schema_version": 1,
  "reviewed_on": "2026-09-06",
  "publisher": "Maguyva Team",
  "language": "en",
  "evidence_kind": "source_audit_and_claim_correction",
  "scope": "Implemented fixture classification rules and provenance of a historical search target. This is not a retrieval benchmark, customer-corpus evaluation, or statistical confidence estimate.",
  "source_revision": "6eb3d8c25437578b1365f127a8af52b3dde471a9",
  "fixture_accuracy": {
    "source_path": "packages/maguyva/language_engine/src/code_language_engine/tools/audit/validation_manifest/metrics_models.py",
    "source_sha256": "5be5629920550bc5993c664cf76dde93671aacfde9677fdb2df84f677f5d3683",
    "symbol": "AccuracyMetrics.status",
    "thresholds": {
      "precision_min": 0.95,
      "recall_min": 0.99,
      "f1_min": 0.97,
      "expected_edges_min": 20
    },
    "curation_caps": {
      "auto_added_pct_max": 0.5,
      "curated_f1_min": 0.9,
      "module_source_pct_max_without_exemption": 0.5
    },
    "interpretation": "For freshly calculated metrics, all thresholds must pass and no curation cap may apply to receive GREEN. Serialized manifests can preserve an explicit status override. The 20-edge floor is a known-case minimum, not a statistical confidence calculation. Enabled capability flags do not assert GREEN status.",
    "verification_test": "packages/maguyva/public_site/tests/scripts/search-quality-evidence.test.ts",
    "evaluation_results": null
  },
  "historical_zero_result_claim": {
    "status": "achieved_improvement_claim_withdrawn",
    "estimated_baseline_percent": 15,
    "target_percent_below": 5,
    "achieved_rate_percent": null,
    "query_set": null,
    "sample_size": null,
    "measurement_receipt": null,
    "source_commit": "0cad65765b1f5d386c43e6943e2b8e7d9b163081",
    "source_date": "2025-12-26",
    "proposal_path_at_commit": "packages/maguyva/docs/refactoring/INTELLIGENT_SEARCH_REDESIGN.md",
    "proposal_sha256": "5d04e40a4f3b10666691cd49213a1ff8b971691009b33f00afc933290867888f",
    "proposal_sections": ["7.1 Quantitative Metrics", "Phase 4: Testing & Validation"],
    "interpretation": "The proposal labels the baseline an estimate and the lower rate a target. The implementation commit also calls it a target. Auto-extracted decision DEC-SR-027 later described a drop as achieved; that description is not a measurement receipt. No reproducible evaluation supporting the reduction is supplied here."
  },
  "reproduction": {
    "threshold_check": "cd packages/maguyva/public_site && npx vitest run tests/scripts/search-quality-evidence.test.ts",
    "historical_proposal": "git show 0cad65765b1f5d386c43e6943e2b8e7d9b163081:packages/maguyva/docs/refactoring/INTELLIGENT_SEARCH_REDESIGN.md",
    "implementation_commit": "git show --format=fuller --no-patch 0cad65765b1f5d386c43e6943e2b8e7d9b163081",
    "access_note": "Commands require a checkout with repository history. Paths and hashes identify the audited sources; this record does not grant repository access."
  }
}