{
  "date": "2026-08-21",
  "timezone": "Asia/Shanghai",
  "window_start": "2026-08-21T00:00:00+08:00",
  "window_end": "2026-08-22T00:00:00+08:00",
  "granularity": "daily_workspace_changes",
  "summary": {
    "new_workspace_count": 23,
    "updated_existing_workspace_count": 5,
    "changed_workspace_count": 28
  },
  "new_workspaces": [
    {
      "workspace_id": "ws-1787299234821-a57beb689",
      "title": "O11Y-2643704 latency RCA",
      "url": "https://investibook.com/workspace/ws-1787299234821-a57beb689",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T08:00:34.821189+00:00",
      "updated_at": "2026-08-21T09:02:05.829027+00:00",
      "user_email": "xieyujie@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "scenario_category_counts": {
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.9,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 4,
          "matched_terms": [
            "compaction",
            "io",
            "raft",
            "磁盘"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 3,
          "matched_terms": [
            "region",
            "tikv",
            "热点"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "sql",
            "慢查询"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "锁",
            "锁等待"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "pd",
            "调度"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "latency",
          "p99",
          "p999",
          "qps",
          "限流"
        ],
        "message_count_used": 5,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 5.705,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1177,
          "reasoning_tokens": 0,
          "cache_read_tokens": 88844,
          "cache_write_tokens": 167,
          "cost_amount": 5.705033250000002
        },
        "message_categories": {
          "查询纠偏": 2,
          "产出物迭代": 2,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787302260647-fee018214",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787302260647-fee018214",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T08:51:00.647470+00:00",
      "updated_at": "2026-08-21T08:51:00.647470+00:00",
      "user_email": "xieyujie@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "lag",
          "ticdc"
        ],
        "message_count_used": 3,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7428,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 1319,
          "reasoning_tokens": 0,
          "cache_read_tokens": 85526,
          "cache_write_tokens": 177,
          "cost_amount": 1.7428266000000003
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787286760265-167b90c0a",
      "title": "TCOC-5841",
      "url": "https://investibook.com/workspace/ws-1787286760265-167b90c0a",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T04:32:40.265177+00:00",
      "updated_at": "2026-08-21T04:33:42.896256+00:00",
      "user_email": "lang.zhu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "scenario_category_counts": {
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "cdc_or_replication_lag",
          "score": 2,
          "matched_terms": [
            "changefeed",
            "replication"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "latency",
          "ru"
        ],
        "message_count_used": 7,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.2668,
        "message_count": 10,
        "user_message_count": 6,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 960,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 83799,
          "cost_amount": 1.2667568999999999
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 4,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787286900196-2e89c07db",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787286900196-2e89c07db",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T04:35:00.196332+00:00",
      "updated_at": "2026-08-21T04:35:00.196332+00:00",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "latency"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "review",
            "总结"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "sql",
          "执行计划"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.2617,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 31,
          "input_tokens": 40301,
          "output_tokens": 26337,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 54518,
          "cost_amount": 1.7289480000000002
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 2,
          "背景补充": 2
        }
      }
    },
    {
      "workspace_id": "ws-1787293375222-040a858da",
      "title": "tidb cloud 集群 10698648422638660035 在 2026-08-17",
      "url": "https://investibook.com/workspace/ws-1787293375222-040a858da",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T06:22:55.222370+00:00",
      "updated_at": "2026-08-21T06:27:37.575281+00:00",
      "user_email": "jianghongmei@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9327,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 964,
          "output_tokens": 1975,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54762,
          "cache_write_tokens": 4528,
          "cost_amount": 0.9398535
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787277940839-e0bc56b86",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787277940839-e0bc56b86",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T02:05:40.839643+00:00",
      "updated_at": "2026-08-21T02:05:40.839643+00:00",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "latency"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "sql",
          "执行计划"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9236,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 42,
          "input_tokens": 57278,
          "output_tokens": 37653,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 44844,
          "cost_amount": 1.59076365
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 4
        }
      }
    },
    {
      "workspace_id": "lark-ws-21d9a554-149f-4ecf-b461-ae62c8118364",
      "title": "Lark O11Y-2643440",
      "url": "https://investibook.com/workspace/lark-ws-21d9a554-149f-4ecf-b461-ae62c8118364",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T01:59:44.560453+00:00",
      "updated_at": "2026-08-21T01:59:44.560453+00:00",
      "user_email": "cong.cao@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7729,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1269,
          "reasoning_tokens": 0,
          "cache_read_tokens": 101359,
          "cache_write_tokens": 517,
          "cost_amount": 0.7728876
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787241717932-567ceb4e2",
      "title": "cluster_id = 10209865030331834412",
      "url": "https://investibook.com/workspace/ws-1787241717932-567ceb4e2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-20T16:01:57.932618+00:00",
      "updated_at": "2026-08-20T16:02:16.057992+00:00",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "data_import_or_load",
      "scenario_category_counts": {
        "data_import_or_load": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "latency",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "import",
          "import into"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6986,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 1569,
          "reasoning_tokens": 0,
          "cache_read_tokens": 87550,
          "cache_write_tokens": 417,
          "cost_amount": 0.69860715
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-3ba3f987-196b-4301-9852-16f26d6f9ece",
      "title": "Lark ST-2905",
      "url": "https://investibook.com/workspace/lark-ws-3ba3f987-196b-4301-9852-16f26d6f9ece",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T03:22:55.989459+00:00",
      "updated_at": "2026-08-21T03:22:55.989459+00:00",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6981,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1048,
          "reasoning_tokens": 0,
          "cache_read_tokens": 86923,
          "cache_write_tokens": 374,
          "cost_amount": 0.69808095
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-4b9cddb6-2257-4240-bb4c-22d9772b5cfa",
      "title": "Lark O11Y-2643621",
      "url": "https://investibook.com/workspace/lark-ws-4b9cddb6-2257-4240-bb4c-22d9772b5cfa",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T05:30:48.784225+00:00",
      "updated_at": "2026-08-21T05:30:48.784225+00:00",
      "user_email": "cong.cao@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6815,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1368,
          "reasoning_tokens": 0,
          "cache_read_tokens": 79811,
          "cache_write_tokens": 434,
          "cost_amount": 0.68151345
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787277940839-e0bc56b86",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787277940839-e0bc56b86",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T02:05:40.839643+00:00",
      "updated_at": "2026-08-21T02:05:40.839643+00:00",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "latency"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "sql",
          "执行计划"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6671,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 42,
          "input_tokens": 57278,
          "output_tokens": 37653,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 44844,
          "cost_amount": 1.59076365
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 4
        }
      }
    },
    {
      "workspace_id": "ws-1787306981542-59c4572d3",
      "title": "TCOC-5844",
      "url": "https://investibook.com/workspace/ws-1787306981542-59c4572d3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T10:09:41.542349+00:00",
      "updated_at": "2026-08-21T10:10:00.338977+00:00",
      "user_email": "chenqingjing@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "non_diagnosis",
      "scenario_category": "fleet_inventory_or_capacity_analysis",
      "scenario_category_counts": {
        "fleet_inventory_or_capacity_analysis": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tenant"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.5475,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 360,
          "reasoning_tokens": 0,
          "cache_read_tokens": 33502,
          "cache_write_tokens": 409,
          "cost_amount": 0.54746925
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787286900196-2e89c07db",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787286900196-2e89c07db",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T04:35:00.196332+00:00",
      "updated_at": "2026-08-21T04:35:00.196332+00:00",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "latency"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "review",
            "总结"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "sql",
          "执行计划"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4672,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 31,
          "input_tokens": 40301,
          "output_tokens": 26337,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 54518,
          "cost_amount": 1.7289480000000002
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 2,
          "背景补充": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-bcf02822-bf4f-4b59-bed1-b2e23e119545",
      "title": "Lark O11Y-2643413",
      "url": "https://investibook.com/workspace/lark-ws-bcf02822-bf4f-4b59-bed1-b2e23e119545",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T01:51:02.069564+00:00",
      "updated_at": "2026-08-21T01:51:02.069564+00:00",
      "user_email": "jiangjianyuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Data Integration",
      "team": "Data Integration",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4666,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 853,
          "reasoning_tokens": 0,
          "cache_read_tokens": 57461,
          "cache_write_tokens": 162,
          "cost_amount": 0.46658055
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-0f6f876f-b318-41e9-9a1b-7a588c572601",
      "title": "Lark O11Y-2643233",
      "url": "https://investibook.com/workspace/lark-ws-0f6f876f-b318-41e9-9a1b-7a588c572601",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-20T17:22:33.114549+00:00",
      "updated_at": "2026-08-20T17:22:33.114549+00:00",
      "user_email": "jiangjianyuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Data Integration",
      "team": "Data Integration",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1944,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1114,
          "reasoning_tokens": 0,
          "cache_read_tokens": 29196,
          "cache_write_tokens": 4312,
          "cost_amount": 0.1944495
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787285315653-6367a2168",
      "title": "TCID-13066",
      "url": "https://investibook.com/workspace/ws-1787285315653-6367a2168",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T04:08:35.653294+00:00",
      "updated_at": "2026-08-21T04:08:57.476841+00:00",
      "user_email": "chenqingjing@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "non_diagnosis",
      "scenario_category": "fleet_inventory_or_capacity_analysis",
      "scenario_category_counts": {
        "fleet_inventory_or_capacity_analysis": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tenant"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1694,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 529,
          "reasoning_tokens": 0,
          "cache_read_tokens": 15609,
          "cache_write_tokens": 22525,
          "cost_amount": 0.1694484
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787279668287-d79502c55",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787279668287-d79502c55",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T02:34:28.287579+00:00",
      "updated_at": "2026-08-21T02:34:28.287579+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1571,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1085,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14316,
          "cache_write_tokens": 20125,
          "cost_amount": 0.15707355
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787276288943-fbd93ca7e",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787276288943-fbd93ca7e",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T01:38:08.943950+00:00",
      "updated_at": "2026-08-21T01:38:08.943950+00:00",
      "user_email": "xuhuaiyu@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0705,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 286,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14379,
          "cache_write_tokens": 134,
          "cost_amount": 0.07054605
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-c2f481c9-05af-45d4-afb3-45ac34b4e8e8",
      "title": "Lark ST-2903",
      "url": "https://investibook.com/workspace/lark-ws-c2f481c9-05af-45d4-afb3-45ac34b4e8e8",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T05:46:11.944328+00:00",
      "updated_at": "2026-08-21T05:46:11.944328+00:00",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0628,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 663,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 14074,
          "cost_amount": 0.0627525
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787293375222-040a858da",
      "title": "tidb cloud 集群 10698648422638660035 在 2026-08-17",
      "url": "https://investibook.com/workspace/ws-1787293375222-040a858da",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T06:22:55.222370+00:00",
      "updated_at": "2026-08-21T06:27:37.575281+00:00",
      "user_email": "jianghongmei@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0071,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 964,
          "output_tokens": 1975,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54762,
          "cache_write_tokens": 4528,
          "cost_amount": 0.9398535
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-1b9e41a0-09c2-4898-8df5-eea8f9a97c5e",
      "title": "Lark O11Y-2643977",
      "url": "https://investibook.com/workspace/lark-ws-1b9e41a0-09c2-4898-8df5-eea8f9a97c5e",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T15:02:18.883686+00:00",
      "updated_at": "2026-08-21T15:02:18.883686+00:00",
      "user_email": "jiangjianyuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Data Integration",
      "team": "Data Integration",
      "channel": "unknown",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {},
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-dc568c0a-0a70-4217-a579-377b04742153",
      "title": "Lark O11Y-2643324",
      "url": "https://investibook.com/workspace/lark-ws-dc568c0a-0a70-4217-a579-377b04742153",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-20T20:30:10.914062+00:00",
      "updated_at": "2026-08-20T20:30:10.914062+00:00",
      "user_email": "jiangjianyuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Data Integration",
      "team": "Data Integration",
      "channel": "unknown",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {},
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787306722243-e781c029b",
      "title": "Cluster 10260745576873721799",
      "url": "https://investibook.com/workspace/ws-1787306722243-e781c029b",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T10:05:22.243487+00:00",
      "updated_at": "2026-08-21T10:05:22.243487+00:00",
      "user_email": "chenqingjing@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "unknown",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "plan"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {},
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    }
  ],
  "updated_existing_workspaces": [
    {
      "workspace_id": "ws-1786675190560-bdeb83252",
      "title": "JPID-10224 PayPay application timeout",
      "url": "https://investibook.com/workspace/ws-1786675190560-bdeb83252",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-14T02:39:50.560055+00:00",
      "updated_at": "2026-08-21T08:06:45.962615+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1,
        "pd_tso_or_scheduling": 1,
        "sql_plan_or_query": 1,
        "resource_control_or_capacity": 1,
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 5,
          "matched_terms": [
            "compaction",
            "disk",
            "io"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 5,
          "matched_terms": [
            "leader",
            "pd",
            "scheduler",
            "timestamp",
            "tso"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "query",
            "slow query",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "duration",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "lock",
            "pessimistic"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "cpu",
          "disk",
          "duration",
          "io",
          "leader",
          "lock",
          "pd",
          "pessimistic",
          "query",
          "ru",
          "scheduler",
          "slow query",
          "sql",
          "timestamp",
          "tso"
        ],
        "message_count_used": 77,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 3.9763,
        "message_count": 50,
        "user_message_count": 25,
        "assistant_message_count": 25,
        "token_usage": {
          "interaction_records": 43,
          "input_tokens": 24553,
          "output_tokens": 13866,
          "reasoning_tokens": 0,
          "cache_read_tokens": 137420,
          "cache_write_tokens": 0,
          "cost_amount": 4.24935
        },
        "message_categories": {
          "产出物迭代": 5,
          "Ad hoc 查询": 8,
          "诊断启动": 1,
          "解释追问": 2,
          "流程控制/确认": 3,
          "背景补充": 5,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785403681255-dc563ad41",
      "title": "Cluster 10122300695965820476",
      "url": "https://investibook.com/workspace/ws-1785403681255-dc563ad41",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-30T09:28:01.255303+00:00",
      "updated_at": "2026-07-30T09:32:13.417646+00:00",
      "user_email": "jiacong.lee@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "session_or_process_management",
      "scenario_category_counts": {
        "session_or_process_management": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "processlist"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7064,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1409,
          "reasoning_tokens": 0,
          "cache_read_tokens": 49572,
          "cache_write_tokens": 2840,
          "cost_amount": 0.7063677000000002
        },
        "message_categories": {
          "流程控制/确认": 2
        }
      }
    },
    {
      "workspace_id": "ws-1786675190560-bdeb83252",
      "title": "JPID-10224 PayPay application timeout",
      "url": "https://investibook.com/workspace/ws-1786675190560-bdeb83252",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-14T02:39:50.560055+00:00",
      "updated_at": "2026-08-21T08:06:45.962615+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1,
        "pd_tso_or_scheduling": 1,
        "sql_plan_or_query": 1,
        "resource_control_or_capacity": 1,
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 5,
          "matched_terms": [
            "compaction",
            "disk",
            "io"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 5,
          "matched_terms": [
            "leader",
            "pd",
            "scheduler",
            "timestamp",
            "tso"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "query",
            "slow query",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "duration",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "lock",
            "pessimistic"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "cpu",
          "disk",
          "duration",
          "io",
          "leader",
          "lock",
          "pd",
          "pessimistic",
          "query",
          "ru",
          "scheduler",
          "slow query",
          "sql",
          "timestamp",
          "tso"
        ],
        "message_count_used": 77,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.273,
        "message_count": 50,
        "user_message_count": 25,
        "assistant_message_count": 25,
        "token_usage": {
          "interaction_records": 43,
          "input_tokens": 24553,
          "output_tokens": 13866,
          "reasoning_tokens": 0,
          "cache_read_tokens": 137420,
          "cache_write_tokens": 0,
          "cost_amount": 4.24935
        },
        "message_categories": {
          "产出物迭代": 5,
          "Ad hoc 查询": 8,
          "诊断启动": 1,
          "解释追问": 2,
          "流程控制/确认": 3,
          "背景补充": 5,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786929687759-e4fab1eb6",
      "title": "Mercari TCID-13044 GCPに依頼",
      "url": "https://investibook.com/workspace/ws-1786929687759-e4fab1eb6",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-17T01:21:27.759335+00:00",
      "updated_at": "2026-08-19T08:54:48.802901+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "gc_or_allocator_pressure",
      "scenario_category_counts": {
        "gc_or_allocator_pressure": 1,
        "sql_plan_or_query": 1,
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "gc_or_allocator_pressure",
          "score": 3,
          "matched_terms": [
            "gc"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "query",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 2,
          "matched_terms": [
            "br",
            "リストア"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "br",
          "gc",
          "query",
          "sql",
          "リストア"
        ],
        "message_count_used": 25,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2674,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 849,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 67164,
          "cost_amount": 0.2673937500000001
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787197372953-1dfb55362",
      "title": "無題のワークスペース",
      "url": "https://investibook.com/workspace/ws-1787197372953-1dfb55362",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-20T03:42:52.953739+00:00",
      "updated_at": "2026-08-20T03:42:52.953739+00:00",
      "user_email": "shigeyuki.fujishima@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "pitr",
          "restore",
          "バックアップ"
        ],
        "message_count_used": 8,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2281,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 31625,
          "cache_write_tokens": 0,
          "cost_amount": 0.22810140000000007
        },
        "message_categories": {
          "流程控制/确认": 2
        }
      }
    }
  ],
  "all_changed_workspaces": [
    {
      "workspace_id": "ws-1787299234821-a57beb689",
      "title": "O11Y-2643704 latency RCA",
      "url": "https://investibook.com/workspace/ws-1787299234821-a57beb689",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T08:00:34.821189+00:00",
      "updated_at": "2026-08-21T09:02:05.829027+00:00",
      "user_email": "xieyujie@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "scenario_category_counts": {
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.9,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 4,
          "matched_terms": [
            "compaction",
            "io",
            "raft",
            "磁盘"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 3,
          "matched_terms": [
            "region",
            "tikv",
            "热点"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "sql",
            "慢查询"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "锁",
            "锁等待"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "pd",
            "调度"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "latency",
          "p99",
          "p999",
          "qps",
          "限流"
        ],
        "message_count_used": 5,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 5.705,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1177,
          "reasoning_tokens": 0,
          "cache_read_tokens": 88844,
          "cache_write_tokens": 167,
          "cost_amount": 5.705033250000002
        },
        "message_categories": {
          "查询纠偏": 2,
          "产出物迭代": 2,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786675190560-bdeb83252",
      "title": "JPID-10224 PayPay application timeout",
      "url": "https://investibook.com/workspace/ws-1786675190560-bdeb83252",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-14T02:39:50.560055+00:00",
      "updated_at": "2026-08-21T08:06:45.962615+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1,
        "pd_tso_or_scheduling": 1,
        "sql_plan_or_query": 1,
        "resource_control_or_capacity": 1,
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 5,
          "matched_terms": [
            "compaction",
            "disk",
            "io"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 5,
          "matched_terms": [
            "leader",
            "pd",
            "scheduler",
            "timestamp",
            "tso"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "query",
            "slow query",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "duration",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "lock",
            "pessimistic"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "cpu",
          "disk",
          "duration",
          "io",
          "leader",
          "lock",
          "pd",
          "pessimistic",
          "query",
          "ru",
          "scheduler",
          "slow query",
          "sql",
          "timestamp",
          "tso"
        ],
        "message_count_used": 77,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 3.9763,
        "message_count": 50,
        "user_message_count": 25,
        "assistant_message_count": 25,
        "token_usage": {
          "interaction_records": 43,
          "input_tokens": 24553,
          "output_tokens": 13866,
          "reasoning_tokens": 0,
          "cache_read_tokens": 137420,
          "cache_write_tokens": 0,
          "cost_amount": 4.24935
        },
        "message_categories": {
          "产出物迭代": 5,
          "Ad hoc 查询": 8,
          "诊断启动": 1,
          "解释追问": 2,
          "流程控制/确认": 3,
          "背景补充": 5,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787302260647-fee018214",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787302260647-fee018214",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T08:51:00.647470+00:00",
      "updated_at": "2026-08-21T08:51:00.647470+00:00",
      "user_email": "xieyujie@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "lag",
          "ticdc"
        ],
        "message_count_used": 3,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7428,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 1319,
          "reasoning_tokens": 0,
          "cache_read_tokens": 85526,
          "cache_write_tokens": 177,
          "cost_amount": 1.7428266000000003
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787286760265-167b90c0a",
      "title": "TCOC-5841",
      "url": "https://investibook.com/workspace/ws-1787286760265-167b90c0a",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T04:32:40.265177+00:00",
      "updated_at": "2026-08-21T04:33:42.896256+00:00",
      "user_email": "lang.zhu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "scenario_category_counts": {
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "cdc_or_replication_lag",
          "score": 2,
          "matched_terms": [
            "changefeed",
            "replication"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "latency",
          "ru"
        ],
        "message_count_used": 7,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.2668,
        "message_count": 10,
        "user_message_count": 6,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 960,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 83799,
          "cost_amount": 1.2667568999999999
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 4,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787286900196-2e89c07db",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787286900196-2e89c07db",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T04:35:00.196332+00:00",
      "updated_at": "2026-08-21T04:35:00.196332+00:00",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "latency"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "review",
            "总结"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "sql",
          "执行计划"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.2617,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 31,
          "input_tokens": 40301,
          "output_tokens": 26337,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 54518,
          "cost_amount": 1.7289480000000002
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 2,
          "背景补充": 2
        }
      }
    },
    {
      "workspace_id": "ws-1787293375222-040a858da",
      "title": "tidb cloud 集群 10698648422638660035 在 2026-08-17",
      "url": "https://investibook.com/workspace/ws-1787293375222-040a858da",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T06:22:55.222370+00:00",
      "updated_at": "2026-08-21T06:27:37.575281+00:00",
      "user_email": "jianghongmei@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9327,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 964,
          "output_tokens": 1975,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54762,
          "cache_write_tokens": 4528,
          "cost_amount": 0.9398535
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787277940839-e0bc56b86",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787277940839-e0bc56b86",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T02:05:40.839643+00:00",
      "updated_at": "2026-08-21T02:05:40.839643+00:00",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "latency"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "sql",
          "执行计划"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9236,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 42,
          "input_tokens": 57278,
          "output_tokens": 37653,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 44844,
          "cost_amount": 1.59076365
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 4
        }
      }
    },
    {
      "workspace_id": "lark-ws-21d9a554-149f-4ecf-b461-ae62c8118364",
      "title": "Lark O11Y-2643440",
      "url": "https://investibook.com/workspace/lark-ws-21d9a554-149f-4ecf-b461-ae62c8118364",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T01:59:44.560453+00:00",
      "updated_at": "2026-08-21T01:59:44.560453+00:00",
      "user_email": "cong.cao@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7729,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1269,
          "reasoning_tokens": 0,
          "cache_read_tokens": 101359,
          "cache_write_tokens": 517,
          "cost_amount": 0.7728876
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785403681255-dc563ad41",
      "title": "Cluster 10122300695965820476",
      "url": "https://investibook.com/workspace/ws-1785403681255-dc563ad41",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-30T09:28:01.255303+00:00",
      "updated_at": "2026-07-30T09:32:13.417646+00:00",
      "user_email": "jiacong.lee@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "session_or_process_management",
      "scenario_category_counts": {
        "session_or_process_management": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "processlist"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7064,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1409,
          "reasoning_tokens": 0,
          "cache_read_tokens": 49572,
          "cache_write_tokens": 2840,
          "cost_amount": 0.7063677000000002
        },
        "message_categories": {
          "流程控制/确认": 2
        }
      }
    },
    {
      "workspace_id": "ws-1787241717932-567ceb4e2",
      "title": "cluster_id = 10209865030331834412",
      "url": "https://investibook.com/workspace/ws-1787241717932-567ceb4e2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-20T16:01:57.932618+00:00",
      "updated_at": "2026-08-20T16:02:16.057992+00:00",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "data_import_or_load",
      "scenario_category_counts": {
        "data_import_or_load": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "latency",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "import",
          "import into"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6986,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 1569,
          "reasoning_tokens": 0,
          "cache_read_tokens": 87550,
          "cache_write_tokens": 417,
          "cost_amount": 0.69860715
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-3ba3f987-196b-4301-9852-16f26d6f9ece",
      "title": "Lark ST-2905",
      "url": "https://investibook.com/workspace/lark-ws-3ba3f987-196b-4301-9852-16f26d6f9ece",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T03:22:55.989459+00:00",
      "updated_at": "2026-08-21T03:22:55.989459+00:00",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6981,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1048,
          "reasoning_tokens": 0,
          "cache_read_tokens": 86923,
          "cache_write_tokens": 374,
          "cost_amount": 0.69808095
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-4b9cddb6-2257-4240-bb4c-22d9772b5cfa",
      "title": "Lark O11Y-2643621",
      "url": "https://investibook.com/workspace/lark-ws-4b9cddb6-2257-4240-bb4c-22d9772b5cfa",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T05:30:48.784225+00:00",
      "updated_at": "2026-08-21T05:30:48.784225+00:00",
      "user_email": "cong.cao@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6815,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1368,
          "reasoning_tokens": 0,
          "cache_read_tokens": 79811,
          "cache_write_tokens": 434,
          "cost_amount": 0.68151345
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787277940839-e0bc56b86",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787277940839-e0bc56b86",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T02:05:40.839643+00:00",
      "updated_at": "2026-08-21T02:05:40.839643+00:00",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "latency"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "sql",
          "执行计划"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6671,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 42,
          "input_tokens": 57278,
          "output_tokens": 37653,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 44844,
          "cost_amount": 1.59076365
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 4
        }
      }
    },
    {
      "workspace_id": "ws-1787306981542-59c4572d3",
      "title": "TCOC-5844",
      "url": "https://investibook.com/workspace/ws-1787306981542-59c4572d3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T10:09:41.542349+00:00",
      "updated_at": "2026-08-21T10:10:00.338977+00:00",
      "user_email": "chenqingjing@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "non_diagnosis",
      "scenario_category": "fleet_inventory_or_capacity_analysis",
      "scenario_category_counts": {
        "fleet_inventory_or_capacity_analysis": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tenant"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.5475,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 360,
          "reasoning_tokens": 0,
          "cache_read_tokens": 33502,
          "cache_write_tokens": 409,
          "cost_amount": 0.54746925
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787286900196-2e89c07db",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787286900196-2e89c07db",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T04:35:00.196332+00:00",
      "updated_at": "2026-08-21T04:35:00.196332+00:00",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "latency"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "review",
            "总结"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "sql",
          "执行计划"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4672,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 31,
          "input_tokens": 40301,
          "output_tokens": 26337,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 54518,
          "cost_amount": 1.7289480000000002
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 2,
          "背景补充": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-bcf02822-bf4f-4b59-bed1-b2e23e119545",
      "title": "Lark O11Y-2643413",
      "url": "https://investibook.com/workspace/lark-ws-bcf02822-bf4f-4b59-bed1-b2e23e119545",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T01:51:02.069564+00:00",
      "updated_at": "2026-08-21T01:51:02.069564+00:00",
      "user_email": "jiangjianyuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Data Integration",
      "team": "Data Integration",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4666,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 853,
          "reasoning_tokens": 0,
          "cache_read_tokens": 57461,
          "cache_write_tokens": 162,
          "cost_amount": 0.46658055
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786675190560-bdeb83252",
      "title": "JPID-10224 PayPay application timeout",
      "url": "https://investibook.com/workspace/ws-1786675190560-bdeb83252",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-14T02:39:50.560055+00:00",
      "updated_at": "2026-08-21T08:06:45.962615+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1,
        "pd_tso_or_scheduling": 1,
        "sql_plan_or_query": 1,
        "resource_control_or_capacity": 1,
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 5,
          "matched_terms": [
            "compaction",
            "disk",
            "io"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 5,
          "matched_terms": [
            "leader",
            "pd",
            "scheduler",
            "timestamp",
            "tso"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "query",
            "slow query",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "duration",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "lock",
            "pessimistic"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "cpu",
          "disk",
          "duration",
          "io",
          "leader",
          "lock",
          "pd",
          "pessimistic",
          "query",
          "ru",
          "scheduler",
          "slow query",
          "sql",
          "timestamp",
          "tso"
        ],
        "message_count_used": 77,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.273,
        "message_count": 50,
        "user_message_count": 25,
        "assistant_message_count": 25,
        "token_usage": {
          "interaction_records": 43,
          "input_tokens": 24553,
          "output_tokens": 13866,
          "reasoning_tokens": 0,
          "cache_read_tokens": 137420,
          "cache_write_tokens": 0,
          "cost_amount": 4.24935
        },
        "message_categories": {
          "产出物迭代": 5,
          "Ad hoc 查询": 8,
          "诊断启动": 1,
          "解释追问": 2,
          "流程控制/确认": 3,
          "背景补充": 5,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786929687759-e4fab1eb6",
      "title": "Mercari TCID-13044 GCPに依頼",
      "url": "https://investibook.com/workspace/ws-1786929687759-e4fab1eb6",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-17T01:21:27.759335+00:00",
      "updated_at": "2026-08-19T08:54:48.802901+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "gc_or_allocator_pressure",
      "scenario_category_counts": {
        "gc_or_allocator_pressure": 1,
        "sql_plan_or_query": 1,
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "gc_or_allocator_pressure",
          "score": 3,
          "matched_terms": [
            "gc"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "query",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 2,
          "matched_terms": [
            "br",
            "リストア"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "br",
          "gc",
          "query",
          "sql",
          "リストア"
        ],
        "message_count_used": 25,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2674,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 849,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 67164,
          "cost_amount": 0.2673937500000001
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787197372953-1dfb55362",
      "title": "無題のワークスペース",
      "url": "https://investibook.com/workspace/ws-1787197372953-1dfb55362",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-20T03:42:52.953739+00:00",
      "updated_at": "2026-08-20T03:42:52.953739+00:00",
      "user_email": "shigeyuki.fujishima@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "pitr",
          "restore",
          "バックアップ"
        ],
        "message_count_used": 8,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2281,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 31625,
          "cache_write_tokens": 0,
          "cost_amount": 0.22810140000000007
        },
        "message_categories": {
          "流程控制/确认": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-0f6f876f-b318-41e9-9a1b-7a588c572601",
      "title": "Lark O11Y-2643233",
      "url": "https://investibook.com/workspace/lark-ws-0f6f876f-b318-41e9-9a1b-7a588c572601",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-20T17:22:33.114549+00:00",
      "updated_at": "2026-08-20T17:22:33.114549+00:00",
      "user_email": "jiangjianyuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Data Integration",
      "team": "Data Integration",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1944,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1114,
          "reasoning_tokens": 0,
          "cache_read_tokens": 29196,
          "cache_write_tokens": 4312,
          "cost_amount": 0.1944495
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787285315653-6367a2168",
      "title": "TCID-13066",
      "url": "https://investibook.com/workspace/ws-1787285315653-6367a2168",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T04:08:35.653294+00:00",
      "updated_at": "2026-08-21T04:08:57.476841+00:00",
      "user_email": "chenqingjing@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "non_diagnosis",
      "scenario_category": "fleet_inventory_or_capacity_analysis",
      "scenario_category_counts": {
        "fleet_inventory_or_capacity_analysis": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tenant"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1694,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 529,
          "reasoning_tokens": 0,
          "cache_read_tokens": 15609,
          "cache_write_tokens": 22525,
          "cost_amount": 0.1694484
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787279668287-d79502c55",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787279668287-d79502c55",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T02:34:28.287579+00:00",
      "updated_at": "2026-08-21T02:34:28.287579+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1571,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1085,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14316,
          "cache_write_tokens": 20125,
          "cost_amount": 0.15707355
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787276288943-fbd93ca7e",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787276288943-fbd93ca7e",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T01:38:08.943950+00:00",
      "updated_at": "2026-08-21T01:38:08.943950+00:00",
      "user_email": "xuhuaiyu@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0705,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 286,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14379,
          "cache_write_tokens": 134,
          "cost_amount": 0.07054605
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-c2f481c9-05af-45d4-afb3-45ac34b4e8e8",
      "title": "Lark ST-2903",
      "url": "https://investibook.com/workspace/lark-ws-c2f481c9-05af-45d4-afb3-45ac34b4e8e8",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T05:46:11.944328+00:00",
      "updated_at": "2026-08-21T05:46:11.944328+00:00",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0628,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 663,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 14074,
          "cost_amount": 0.0627525
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787293375222-040a858da",
      "title": "tidb cloud 集群 10698648422638660035 在 2026-08-17",
      "url": "https://investibook.com/workspace/ws-1787293375222-040a858da",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T06:22:55.222370+00:00",
      "updated_at": "2026-08-21T06:27:37.575281+00:00",
      "user_email": "jianghongmei@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0071,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 964,
          "output_tokens": 1975,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54762,
          "cache_write_tokens": 4528,
          "cost_amount": 0.9398535
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-1b9e41a0-09c2-4898-8df5-eea8f9a97c5e",
      "title": "Lark O11Y-2643977",
      "url": "https://investibook.com/workspace/lark-ws-1b9e41a0-09c2-4898-8df5-eea8f9a97c5e",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T15:02:18.883686+00:00",
      "updated_at": "2026-08-21T15:02:18.883686+00:00",
      "user_email": "jiangjianyuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Data Integration",
      "team": "Data Integration",
      "channel": "unknown",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {},
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-dc568c0a-0a70-4217-a579-377b04742153",
      "title": "Lark O11Y-2643324",
      "url": "https://investibook.com/workspace/lark-ws-dc568c0a-0a70-4217-a579-377b04742153",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-20T20:30:10.914062+00:00",
      "updated_at": "2026-08-20T20:30:10.914062+00:00",
      "user_email": "jiangjianyuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Data Integration",
      "team": "Data Integration",
      "channel": "unknown",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {},
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787306722243-e781c029b",
      "title": "Cluster 10260745576873721799",
      "url": "https://investibook.com/workspace/ws-1787306722243-e781c029b",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-21T10:05:22.243487+00:00",
      "updated_at": "2026-08-21T10:05:22.243487+00:00",
      "user_email": "chenqingjing@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "unknown",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "plan"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {},
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    }
  ]
}