{
  "session": {
    "sessionId": "eval-narrow-highcpu-observation",
    "query": "确认 payment-service 当前是否存在 HighCPUUsage 告警。",
    "status": "SUCCESS",
    "agentFlow": "CHAT",
    "totalDurationMs": 18000,
    "toolCallCount": 1,
    "answer": "payment-service 当前存在 HighCPUUsage 告警，CPU 使用率为 92%。",
    "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_metrics",
              "source_invocation_id": 11,
              "raw_path": "$.alerts[0]",
              "matched_text": "HighCPUUsage firing, service=payment-service, current=92%, duration=25m",
              "status": "pass"
            }
          ],
          "failed_rules": [],
          "warnings": [],
          "errors": []
        },
        "executor_structured_output": {
          "answer_version": "executor_evidence_v2",
          "claims": [
            {
              "claim_id": "claim-1",
              "claim_type": "observation",
              "claim_text": "payment-service 当前存在 HighCPUUsage 告警，CPU 使用率为 92%。",
              "support_level": "direct",
              "evidence_bindings": [
                {
                  "source_type": "tool_trace",
                  "tool_name": "query_metrics",
                  "source_invocation_id": 11,
                  "raw_path": "$.alerts[0]",
                  "evidence_excerpt": "HighCPUUsage firing, service=payment-service, current=92%, duration=25m"
                }
              ]
            }
          ],
          "hypotheses": [],
          "recommended_actions": [],
          "missing_info": []
        },
        "claim_checks": [
          {
            "claim_id": "claim-1",
            "claim_text": "payment-service 当前存在 HighCPUUsage 告警，CPU 使用率为 92%。",
            "claim_type": "observation",
            "verification": "direct_observation",
            "detail": "已核验的指标证据直接包含服务名、告警名和 CPU 当前值。",
            "evidence_refs": [
              {
                "source_invocation_id": 11,
                "raw_path": "$.alerts[0]"
              }
            ]
          }
        ],
        "facts_checked": [],
        "composer_output": {
          "status": "valid",
          "answer_summary": "payment-service 当前存在 HighCPUUsage 告警。",
          "recommended_actions": [],
          "user_facing_answer": "payment-service 当前存在 HighCPUUsage 告警，CPU 使用率为 92%。"
        },
        "tool_trace_summary": [
          {
            "tool_name": "query_metrics",
            "success": true,
            "source_invocation_ids": [11],
            "evidence_level": "direct"
          }
        ]
      }
    }
  },
  "steps": [],
  "toolInvocations": [
    {
      "id": 11,
      "sessionId": "eval-narrow-highcpu-observation",
      "toolName": "query_metrics",
      "outputPreview": "HighCPUUsage firing, service=payment-service, current=92%, duration=25m",
      "retrievalDetails": {
        "evidence_status": "supported",
        "evidence_refs": [
          {
            "raw_path": "$.alerts[0]",
            "text": "HighCPUUsage firing, service=payment-service, current=92%, duration=25m"
          }
        ]
      },
      "success": true
    }
  ],
  "summary": {
    "persistedStepCount": 3,
    "returnedStepCount": 3,
    "persistedToolCallCount": 1,
    "returnedToolCallCount": 1,
    "hasVerifierEvaluation": true,
    "hasFeedback": false
  }
}