{
  "run": {
    "sessionId": "eval-gatekeeper-fabricated-invocation",
    "query": "支付失败是否能确认由日志中的连接池耗尽导致？",
    "status": "SUCCESS",
    "agentFlow": "CHAT",
    "totalDurationMs": 39000,
    "toolCallCount": 1,
    "answer": "当前无法基于已获取证据生成可靠结论。\n\n证据引用校验失败：Executor 引用了不存在的工具调用记录，因此不能把连接池问题作为确认结论。建议重新收集日志证据后再判断。",
    "selfEvaluation": {
      "verifier_evaluation": {
        "verdict": "REJECT",
        "groundedness_score": 0.1,
        "critical_fact_count": 1,
        "gatekeeper_result": {
          "status": "fail",
          "failed_rules": ["evidence.invocation_ref"],
          "warnings": [],
          "errors": [
            {
              "rule_id": "evidence.invocation_ref",
              "field": "claims[0].evidence_bindings[0].tool_invocation_id",
              "message": "tool_invocation_id does not exist"
            }
          ]
        },
        "executor_structured_output": {
          "answer_version": "executor_evidence_v2",
          "claims": [
            {
              "claim_id": "claim-1",
              "claim_type": "root_cause",
              "claim_text": "连接池耗尽导致支付失败",
              "support_level": "direct",
              "evidence_bindings": [
                {
                  "tool_invocation_id": 99,
                  "tool_name": "query_logs",
                  "evidence_excerpt": "connection pool exhausted"
                }
              ]
            }
          ],
          "hypotheses": [],
          "recommended_actions": [
            {
              "action_text": "重新查询支付服务错误日志",
              "reason": "当前 Executor 证据引用无法回溯"
            }
          ],
          "missing_info": ["需要有效的日志工具调用记录"]
        },
        "claim_checks": [
          {
            "claim_id": "claim-1",
            "claim_text": "连接池耗尽导致支付失败",
            "claim_type": "root_cause",
            "verification": "unsupported",
            "detail": "Gatekeeper 已判定证据引用不存在，不能确认该结论",
            "evidence_refs": []
          }
        ],
        "facts_checked": [
          {
            "fact": "连接池耗尽导致支付失败",
            "verification": "unsupported",
            "detail": "Gatekeeper 已判定证据引用不存在，不能确认该结论",
            "evidence_refs": []
          }
        ],
        "composer_output": {
          "status": "valid",
          "answer_summary": "证据引用校验失败，不能确认根因。",
          "recommended_actions": [
            {
              "action_text": "重新查询支付服务错误日志",
              "reason": "当前 Executor 证据引用无法回溯"
            }
          ],
          "user_facing_answer": "当前无法基于已获取证据生成可靠结论。\n\n证据引用校验失败：Executor 引用了不存在的工具调用记录，因此不能把连接池问题作为确认结论。建议重新收集日志证据后再判断。"
        },
        "tool_trace_summary": [
          {
            "tool_name": "query_logs",
            "success": true,
            "evidence_level": "direct"
          }
        ]
      }
    }
  },
  "steps": [],
  "toolInvocations": [
    {
      "id": 1,
      "sessionId": "eval-gatekeeper-fabricated-invocation",
      "toolName": "query_logs",
      "outputPreview": "payment failed without matching connection pool exhaustion entry",
      "success": true
    }
  ],
  "summary": {
    "persistedStepCount": 3,
    "returnedStepCount": 3,
    "persistedToolCallCount": 1,
    "returnedToolCallCount": 1,
    "hasVerifierEvaluation": true,
    "hasFeedback": false
  }
}