{
  "schema": "8db-website-evaluation-fixture/v1",
  "reviewed": "2026-09-18",
  "purpose": "Portable semantic example and evaluation brief. Not an 8DB API request, runtime result, benchmark or release qualification.",
  "evaluation_fields_to_complete": [
    "8DB build/commit and SDK",
    "target hardware and operating system",
    "input adapters and representation",
    "authorization/protection requirements",
    "persistence and recovery requirements",
    "expected result and reference oracle",
    "matched alternative and configuration",
    "database-stage and complete-job measurement boundaries"
  ],
  "scenario": "evidence-retrieval",
  "source_scope": "Native search engineering guide: native_search_lexical_scope.rs at 7daa790852901152b2fb74aad605baaa11b560af. Documentary review 18 September 2026; no new engine run.",
  "rules": [
    "Use the stored lexical relationship only when expansion is enabled.",
    "Separate lexical expansion from vector similarity and answer generation."
  ],
  "qualification_checks": [
    "Run each documented case against the pinned engine build.",
    "Add a no-match control and verify source identity.",
    "Qualify ingestion formats, authorization and update visibility separately.",
    "Compare equivalent retrieval quality and full ingestion-to-result cost."
  ],
  "public_reading": "https://8braid.com/journal/show-your-work-provenance-as-a-query",
  "indexed_text": "automobile",
  "stored_relationship": [
    "car",
    "automobile"
  ],
  "expected_cases": [
    {
      "expansion": false,
      "query": "automobile",
      "match": true
    },
    {
      "expansion": false,
      "query": "car",
      "match": false
    },
    {
      "expansion": true,
      "query": "car",
      "match": true
    }
  ]
}