{
  "state": {
    "query": "Example: What was the exact margin reported in Q4 2006 and which executive approved it?",
    "started_at": "2026-03-01T00:20:00Z",
    "completed_at": "2026-03-01T00:20:45Z",
    "status": "terminated",
    "termination_reason": "retrieval_budget_exceeded",
    "evidence_pool": [
      {
        "chunk_id": "doc777_chunk_9",
        "doc_id": "financial_report_2006",
        "text": "Sample evidence text here...",
        "source": "dense",
        "modality": "text",
        "section": "financials",
        "page": 14,
        "score": 0.42,
        "location": "page:14"
      }
    ],
    "hops": [
      {
        "hop_index": 1,
        "sub_question": "Which reports mention Q4 2006 margin details?",
        "retrieval_strategy": "dense",
        "retrieved_count": 8,
        "new_evidence_count": 4,
        "total_evidence_count": 4,
        "validation": {
          "heuristic": {
            "keyword_coverage": 0.2,
            "doc_diversity": 0.33,
            "heuristic_score": 0.25
          },
          "sufficiency_score": 0.18,
          "relevance_score": 0.3,
          "combined_score": 0.23,
          "missing_info": "Specific margin figure and approving executive.",
          "should_stop": false
        },
        "retrieval_metadata": [
          {
            "chunk_id": "doc777_chunk_9",
            "doc_id": "financial_report_2006",
            "section": "financials",
            "page": 14,
            "source": "dense",
            "score": 0.42
          }
        ],
        "started_at": "2026-03-01T00:20:02Z",
        "completed_at": "2026-03-01T00:20:10Z"
      }
    ]
  },
  "final": {
    "answer": "The provided evidence is insufficient to determine the exact margin or approving executive.",
    "citations": [
      {
        "chunk_id": "doc777_chunk_9",
        "doc_id": "financial_report_2006",
        "location": "page:14"
      }
    ],
    "confidence": 0.22,
    "reasoning_trace": "The documents mention Q4 2006 but do not include the exact margin or approval details."
  }
}