{
  "value": {
    "search_mode": "tempr_4way",
    "total": 0,
    "primary": [],
    "related": [],
    "causal_expansion": [],
    "cultural_associations": [],
    "phonetic_similar": [],
    "entity_expansion": [],
    "entity_context": {},
    "query": "",
    "intent": "general",
    "_trace": {
      "trace_id": "tr_6072db037b80",
      "query": "Rust",
      "result_summary": "found 0 results via tempr_4way, top_score=0.000",
      "confidence": 0.3,
      "sources_consulted": [],
      "steps": [
        {
          "step_type": "init",
          "detail": "mode_hints: structured=True, semantic=False, strategy=auto",
          "timestamp": 1779786032.5746
        },
        {
          "step_type": "fts_search",
          "detail": "structured found 0 results",
          "timestamp": 1779786032.5746
        },
        {
          "step_type": "vec_search",
          "detail": "semantic found 0 results (top_k=20)",
          "timestamp": 1779786032.5746
        },
        {
          "step_type": "rrf_fusion",
          "detail": "4way merged 0 results (hits: {'structured': 0, 'semantic': 0, 'entity': 0, 'causal': 0, 'bm25': 0}, multi: 0)",
          "timestamp": 1779786032.5746
        }
      ],
      "uncertainty_factors": [
        "low_result_count: only 0 results found"
      ],
      "alternatives_considered": [],
      "created_at": 1779786032.5746
    },
    "status": "no_results"
  },
  "expires_at": 1779786092.5746,
  "created_at": 1779786032.5746,
  "_hmac": "ce2da351ce2a7e5723c22d4bab5e03f4d65f9c452cd30790a7a8f3561b88e339"
}