{
  "session": {
    "sessionId": "eval-composer-fallback-no-raw-json",
    "query": "库存服务慢响应是否可以直接输出 Executor JSON？",
    "status": "SUCCESS",
    "agentFlow": "CHAT",
    "totalDurationMs": 47000,
    "toolCallCount": 1,
    "answer": "以下结论基于当前已获取证据，仍存在部分证据缺口，请谨慎参考。\n\n已确认信息：指标显示库存服务出现慢响应。\n\n仍需补充信息：当前没有线程池队列或线程耗尽证据，不能确认线程池方向。\n\n建议动作：补充查询库存服务线程池指标。",
    "selfEvaluation": {
      "verifier_evaluation": {
        "verdict": "LOW_CONFID",
        "groundedness_score": 0.45,
        "critical_fact_count": 2,
        "gatekeeper_result": {
          "status": "pass",
          "failed_rules": [],
          "warnings": [],
          "errors": []
        },
        "executor_structured_output": {
          "answer_version": "executor_evidence_v2",
          "claims": [
            {
              "claim_id": "claim-slow-response",
              "claim_type": "symptom",
              "claim_text": "库存服务出现慢响应",
              "support_level": "direct",
              "evidence_bindings": [
                {
                  "tool_invocation_id": 1,
                  "tool_name": "query_metrics",
                  "evidence_excerpt": "inventory p99 latency increased"
                }
              ]
            },
            {
              "claim_id": "claim-thread-pool",
              "claim_type": "root_cause",
              "claim_text": "线程池已经耗尽",
              "support_level": "weak",
              "evidence_bindings": [
                {
                  "tool_invocation_id": 1,
                  "tool_name": "query_metrics",
                  "evidence_excerpt": "inventory p99 latency increased"
                }
              ]
            }
          ],
          "hypotheses": [],
          "recommended_actions": [
            {
              "action_text": "补充查询库存服务线程池指标",
              "reason": "当前只有慢响应指标"
            }
          ],
          "missing_info": ["线程池队列长度", "活跃线程数"]
        },
        "claim_checks": [
          {
            "claim_id": "claim-slow-response",
            "claim_text": "库存服务出现慢响应",
            "claim_type": "symptom",
            "verification": "direct_observation",
            "detail": "指标显示 inventory p99 latency increased",
            "evidence_refs": [
              {
                "tool_invocation_id": 1,
                "tool_name": "query_metrics"
              }
            ]
          },
          {
            "claim_id": "claim-thread-pool",
            "claim_text": "线程池已经耗尽",
            "claim_type": "root_cause",
            "verification": "external_unknown",
            "detail": "没有线程池队列或活跃线程指标，不能确认该结论",
            "evidence_refs": []
          }
        ],
        "facts_checked": [
          {
            "fact": "库存服务出现慢响应",
            "verification": "direct_evidence",
            "detail": "指标显示 inventory p99 latency increased",
            "evidence_refs": [
              {
                "tool_invocation_id": 1,
                "tool_name": "query_metrics"
              }
            ]
          },
          {
            "fact": "线程池已经耗尽",
            "verification": "external_unknown",
            "detail": "没有线程池队列或活跃线程指标，不能确认该结论",
            "evidence_refs": []
          }
        ],
        "composer_output": {
          "status": "composer_malformed",
          "detail": "used safe fallback rendering",
          "answer_summary": "指标显示库存服务出现慢响应。",
          "recommended_actions": [
            {
              "action_text": "补充查询库存服务线程池指标",
              "reason": "当前只有慢响应指标"
            }
          ],
          "user_facing_answer": "以下结论基于当前已获取证据，仍存在部分证据缺口，请谨慎参考。\n\n已确认信息：指标显示库存服务出现慢响应。\n\n仍需补充信息：当前没有线程池队列或线程耗尽证据，不能确认线程池方向。\n\n建议动作：补充查询库存服务线程池指标。"
        },
        "tool_trace_summary": [
          {
            "tool_name": "query_metrics",
            "success": true,
            "evidence_level": "direct"
          }
        ]
      }
    }
  },
  "steps": [],
  "toolInvocations": [
    {
      "id": 1,
      "sessionId": "eval-composer-fallback-no-raw-json",
      "toolName": "query_metrics",
      "outputPreview": "inventory p99 latency increased",
      "success": true
    }
  ],
  "summary": {
    "persistedStepCount": 3,
    "returnedStepCount": 3,
    "persistedToolCallCount": 1,
    "returnedToolCallCount": 1,
    "hasVerifierEvaluation": true,
    "hasFeedback": false
  }
}