{
  "session": {
    "sessionId": "eval-hikari-no-evidence-negative-observation",
    "query": "确认 inventory-service 当前是否有 HikariCP 连接池耗尽日志。",
    "status": "SUCCESS",
    "agentFlow": "CHAT",
    "totalDurationMs": 21000,
    "toolCallCount": 1,
    "answer": "本次查询未检索到 inventory-service 的 HikariCP 连接池耗尽日志；这只表示当前查询没有匹配证据，仍不能据此判断系统一定健康。",
    "selfEvaluation": {
      "verifier_evaluation": {
        "verdict": "PASS",
        "groundedness_score": 1.0,
        "critical_fact_count": 1,
        "gatekeeper_result": {
          "status": "pass",
          "severity": "none",
          "rule_set_version": "gatekeeper-rules-v1",
          "rules": [
            {
              "id": "evidence.raw_path",
              "description": "raw_path must exist in retrieval_details.evidence_refs",
              "enabled": true,
              "default_severity": "reject"
            }
          ],
          "checked_bindings": [
            {
              "claim_id": "claim-1",
              "tool_name": "query_logs",
              "source_invocation_id": 12,
              "raw_path": "$.no_evidence",
              "matched_text": "query_logs returned no evidence; evidence_status=no_evidence; query=inventory-service HikariCP; topic=application-logs; total=0; message=未找到匹配的日志",
              "status": "pass"
            }
          ],
          "failed_rules": [],
          "warnings": [],
          "errors": []
        },
        "executor_structured_output": {
          "answer_version": "executor_evidence_v2",
          "claims": [
            {
              "claim_id": "claim-1",
              "claim_type": "negative_observation",
              "claim_text": "当前查询未检索到 inventory-service 的 HikariCP 连接池耗尽日志。",
              "support_level": "direct",
              "evidence_bindings": [
                {
                  "source_type": "tool_trace",
                  "tool_name": "query_logs",
                  "source_invocation_id": 12,
                  "raw_path": "$.no_evidence",
                  "evidence_excerpt": "query_logs returned no evidence; query=inventory-service HikariCP; total=0; evidence_status=no_evidence"
                }
              ]
            }
          ],
          "hypotheses": [],
          "recommended_actions": [],
          "missing_info": [
            "仅查询了 application-logs 中 inventory-service HikariCP 相关日志"
          ]
        },
        "claim_checks": [
          {
            "claim_id": "claim-1",
            "claim_text": "当前查询未检索到 inventory-service 的 HikariCP 连接池耗尽日志。",
            "claim_type": "negative_observation",
            "verification": "direct_observation",
            "detail": "$.no_evidence 只支持本次查询未检索到匹配证据。",
            "evidence_refs": [
              {
                "source_invocation_id": 12,
                "raw_path": "$.no_evidence"
              }
            ]
          }
        ],
        "facts_checked": [],
        "composer_output": {
          "status": "valid",
          "answer_summary": "本次查询未检索到匹配日志。",
          "recommended_actions": [],
          "user_facing_answer": "本次查询未检索到 inventory-service 的 HikariCP 连接池耗尽日志；这只表示当前查询没有匹配证据，仍不能据此判断系统一定健康。"
        },
        "tool_trace_summary": [
          {
            "tool_name": "query_logs",
            "success": true,
            "source_invocation_ids": [12],
            "evidence_level": "no_evidence"
          }
        ]
      }
    }
  },
  "steps": [],
  "toolInvocations": [
    {
      "id": 12,
      "sessionId": "eval-hikari-no-evidence-negative-observation",
      "toolName": "query_logs",
      "outputPreview": "query_logs returned no evidence; evidence_status=no_evidence; query=inventory-service HikariCP; topic=application-logs; total=0; message=未找到匹配的日志",
      "retrievalDetails": {
        "evidence_status": "no_evidence",
        "evidence_refs": [
          {
            "raw_path": "$.no_evidence",
            "text": "query_logs returned no evidence; evidence_status=no_evidence; query=inventory-service HikariCP; topic=application-logs; total=0; message=未找到匹配的日志"
          }
        ]
      },
      "success": true
    }
  ],
  "summary": {
    "persistedStepCount": 3,
    "returnedStepCount": 3,
    "persistedToolCallCount": 1,
    "returnedToolCallCount": 1,
    "hasVerifierEvaluation": true,
    "hasFeedback": false
  }
}