{
  "date": "2026-08-25",
  "timezone": "Asia/Shanghai",
  "window_start": "2026-08-25T00:00:00+08:00",
  "window_end": "2026-08-26T00:00:00+08:00",
  "granularity": "daily_workspace_changes",
  "summary": {
    "new_workspace_count": 28,
    "updated_existing_workspace_count": 4,
    "changed_workspace_count": 32
  },
  "new_workspaces": [
    {
      "workspace_id": "ws-1787638960509-1eda55291",
      "title": "Cluster 10198021976582142638",
      "url": "https://investibook.com/workspace/ws-1787638960509-1eda55291",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:22:40.509963+00:00",
      "updated_at": "2026-08-25T06:22:40.509963+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": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 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": [
          "index",
          "query",
          "slow query",
          "sql"
        ],
        "message_count_used": 12,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 11.7833,
        "message_count": 21,
        "user_message_count": 10,
        "assistant_message_count": 9,
        "token_usage": {
          "interaction_records": 9,
          "input_tokens": 1,
          "output_tokens": 785,
          "reasoning_tokens": 0,
          "cache_read_tokens": 61956,
          "cache_write_tokens": 2247,
          "cost_amount": 11.78333185
        },
        "message_categories": {
          "Ad hoc 查询": 3,
          "解释追问": 1,
          "流程控制/确认": 4,
          "背景补充": 2
        }
      }
    },
    {
      "workspace_id": "ws-1787637185313-f4cf399a2",
      "title": "mercari TCID-13086",
      "url": "https://investibook.com/workspace/ws-1787637185313-f4cf399a2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T05:53:05.313173+00:00",
      "updated_at": "2026-08-25T05:53:16.798117+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": "memory_or_oom_pressure",
      "scenario_category_counts": {
        "memory_or_oom_pressure": 1
      },
      "scenario_confidence": 0.62,
      "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": [
          "oom",
          "メモリ"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 4.5715,
        "message_count": 18,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 8,
          "input_tokens": 10,
          "output_tokens": 2709,
          "reasoning_tokens": 0,
          "cache_read_tokens": 177863,
          "cache_write_tokens": 1919,
          "cost_amount": 4.5715152
        },
        "message_categories": {
          "查询纠偏": 1,
          "Ad hoc 查询": 6,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-527c5e62-f0ba-41fc-9bdd-b278962fce6d",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-527c5e62-f0ba-41fc-9bdd-b278962fce6d",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T03:58:00.719512+00:00",
      "updated_at": "2026-08-25T03:58:00.719512+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "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": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "index",
            "scan"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "pd",
            "scheduler"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "ticdc",
          "同步"
        ],
        "message_count_used": 25,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 3.7083,
        "message_count": 51,
        "user_message_count": 25,
        "assistant_message_count": 26,
        "token_usage": {
          "interaction_records": 32,
          "input_tokens": 6189,
          "output_tokens": 7027,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 145024,
          "cost_amount": 3.79285575
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 17,
          "诊断启动": 2,
          "流程控制/确认": 1,
          "背景补充": 4
        }
      }
    },
    {
      "workspace_id": "ws-1787637762639-1b03fd9be",
      "title": "TCID-13085",
      "url": "https://investibook.com/workspace/ws-1787637762639-1b03fd9be",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:02:42.640002+00:00",
      "updated_at": "2026-08-25T06:02:50.143478+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": "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": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.9891,
        "message_count": 11,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 10,
          "output_tokens": 1273,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 91434,
          "cost_amount": 2.98910715
        },
        "message_categories": {
          "Ad hoc 查询": 4,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787641617955-c4cd4dee3",
      "title": "TCOC-5862",
      "url": "https://investibook.com/workspace/ws-1787641617955-c4cd4dee3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T07:06:57.955593+00:00",
      "updated_at": "2026-08-25T07:08:36.054436+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": "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_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "restore"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.792,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 812,
          "reasoning_tokens": 0,
          "cache_read_tokens": 111997,
          "cache_write_tokens": 1794,
          "cost_amount": 2.7919549499999987
        },
        "message_categories": {
          "流程控制/确认": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787619377215-3da2fb8e3",
      "title": "ap-east-1-f01 这个essential cluster resource",
      "url": "https://investibook.com/workspace/ws-1787619377215-3da2fb8e3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T00:56:17.215334+00:00",
      "updated_at": "2026-08-25T01:06:54.262490+00:00",
      "user_email": "debin.jia@pingcap.com",
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "team": "KV Service",
      "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_evidence": {
        "matched_terms": [
          "qps",
          "ru"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.6625,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 2293,
          "reasoning_tokens": 0,
          "cache_read_tokens": 104449,
          "cache_write_tokens": 2909,
          "cost_amount": 1.6624866000000003
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-9e1a46fa-4041-47bb-9e00-a482402e05b9",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-9e1a46fa-4041-47bb-9e00-a482402e05b9",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T02:24:50.622768+00:00",
      "updated_at": "2026-08-25T02:24:50.622768+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": "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": [
          "query",
          "slow query"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.1984,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1281,
          "reasoning_tokens": 0,
          "cache_read_tokens": 97255,
          "cache_write_tokens": 642,
          "cost_amount": 1.19838015
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787656067359-1d1363fe6",
      "title": "TCID-13088",
      "url": "https://investibook.com/workspace/ws-1787656067359-1d1363fe6",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T11:07:47.359061+00:00",
      "updated_at": "2026-08-25T11:09:00.807029+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1,
        "memory_or_oom_pressure": 1,
        "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": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "memory_or_oom_pressure",
          "score": 2,
          "matched_terms": [
            "memory",
            "内存"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "memory",
          "region",
          "ru",
          "tikv",
          "内存"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.0114,
        "message_count": 7,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1018,
          "reasoning_tokens": 0,
          "cache_read_tokens": 55962,
          "cache_write_tokens": 2199,
          "cost_amount": 1.01140605
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-2450c9b2-9a38-4f06-9dc4-4a3330fc8710",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-2450c9b2-9a38-4f06-9dc4-4a3330fc8710",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T01:45:58.670600+00:00",
      "updated_at": "2026-08-25T01:45:58.670600+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": "transaction_or_lock_contention",
      "scenario_category_counts": {
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "lock",
          "冲突",
          "锁",
          "锁等待"
        ],
        "message_count_used": 3,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7578,
        "message_count": 9,
        "user_message_count": 3,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1156,
          "reasoning_tokens": 0,
          "cache_read_tokens": 103832,
          "cache_write_tokens": 357,
          "cost_amount": 0.7578406500000001
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-2f1d2be7-cc2b-4aa4-9001-e344e9e6e8fa",
      "title": "Lark O11Y-2647202",
      "url": "https://investibook.com/workspace/lark-ws-2f1d2be7-cc2b-4aa4-9001-e344e9e6e8fa",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:52:27.161825+00:00",
      "updated_at": "2026-08-25T06:52:27.161825+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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7557,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 612,
          "reasoning_tokens": 0,
          "cache_read_tokens": 94092,
          "cache_write_tokens": 1536,
          "cost_amount": 0.7557351000000001
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-9a3853dc-2ccb-4c44-a7b7-0958ed040dbb",
      "title": "Lark O11Y-2646789",
      "url": "https://investibook.com/workspace/lark-ws-9a3853dc-2ccb-4c44-a7b7-0958ed040dbb",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-24T22:16:28.778666+00:00",
      "updated_at": "2026-08-24T22:16:28.778666+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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6506,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 759,
          "reasoning_tokens": 0,
          "cache_read_tokens": 70670,
          "cache_write_tokens": 1590,
          "cost_amount": 0.6505574999999999
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-e7b58068-f248-4afe-9c81-d4fc6933029f",
      "title": "Lark O11Y-2646831",
      "url": "https://investibook.com/workspace/lark-ws-e7b58068-f248-4afe-9c81-d4fc6933029f",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-24T23:59:32.673364+00:00",
      "updated_at": "2026-08-24T23:59:32.673364+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": 0.6314,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 719,
          "reasoning_tokens": 0,
          "cache_read_tokens": 71486,
          "cache_write_tokens": 381,
          "cost_amount": 0.6314379
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-ec6c6299-c61c-4a90-8ed6-fe3c1025b090",
      "title": "Lark O11Y-2646732",
      "url": "https://investibook.com/workspace/lark-ws-ec6c6299-c61c-4a90-8ed6-fe3c1025b090",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-24T20:21:39.225898+00:00",
      "updated_at": "2026-08-24T20:21:39.225898+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": 0.6209,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1399,
          "reasoning_tokens": 0,
          "cache_read_tokens": 79244,
          "cache_write_tokens": 504,
          "cost_amount": 0.6209228999999999
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-ddfbe503-bc99-4948-a844-9688f5006c66",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-ddfbe503-bc99-4948-a844-9688f5006c66",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T01:57:26.626867+00:00",
      "updated_at": "2026-08-25T01:57:26.626867+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 2,
          "matched_terms": [
            "restart",
            "重启"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tikv"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6119,
        "message_count": 22,
        "user_message_count": 10,
        "assistant_message_count": 12,
        "token_usage": {
          "interaction_records": 15,
          "input_tokens": 6783,
          "output_tokens": 5030,
          "reasoning_tokens": 0,
          "cache_read_tokens": 36357,
          "cache_write_tokens": 1704,
          "cost_amount": 0.6857454000000001
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 2,
          "诊断启动": 1,
          "解释追问": 1,
          "流程控制/确认": 1,
          "背景补充": 4
        }
      }
    },
    {
      "workspace_id": "lark-ws-4a9e7f66-ac96-4b28-96c9-0956adf78f63",
      "title": "Lark O11Y-2646845",
      "url": "https://investibook.com/workspace/lark-ws-4a9e7f66-ac96-4b28-96c9-0956adf78f63",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-24T23:57:47.314294+00:00",
      "updated_at": "2026-08-24T23:57:47.314294+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": 0.413,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1243,
          "reasoning_tokens": 0,
          "cache_read_tokens": 64132,
          "cache_write_tokens": 628,
          "cost_amount": 0.4129839
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787640886861-91c3fcaf3",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787640886861-91c3fcaf3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:54:46.861462+00:00",
      "updated_at": "2026-08-25T06:54:46.861462+00:00",
      "user_email": "shenjing.zhao@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "tikv",
          "热点"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3998,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1703,
          "reasoning_tokens": 0,
          "cache_read_tokens": 28986,
          "cache_write_tokens": 659,
          "cost_amount": 0.3998128499999999
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-a9d9b1ea-7b39-429f-9d42-7c9e50f51fe2",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-a9d9b1ea-7b39-429f-9d42-7c9e50f51fe2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T02:10:26.223829+00:00",
      "updated_at": "2026-08-25T02:10:26.223829+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "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": 0.3921,
        "message_count": 12,
        "user_message_count": 4,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1,
          "output_tokens": 368,
          "reasoning_tokens": 0,
          "cache_read_tokens": 36395,
          "cache_write_tokens": 698,
          "cost_amount": 0.39205935
        },
        "message_categories": {
          "解释追问": 2,
          "流程控制/确认": 2
        }
      }
    },
    {
      "workspace_id": "ws-1787647568516-ff0a63f0b",
      "title": "TCOC-5864",
      "url": "https://investibook.com/workspace/ws-1787647568516-ff0a63f0b",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T08:46:08.516433+00:00",
      "updated_at": "2026-08-25T08:46:19.435997+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": "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": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3893,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 508,
          "reasoning_tokens": 0,
          "cache_read_tokens": 32329,
          "cache_write_tokens": 26866,
          "cost_amount": 0.38934389999999997
        },
        "message_categories": {
          "产出物迭代": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787640212528-3baa013fc",
      "title": "325805451a9 & c6454d868c41c",
      "url": "https://investibook.com/workspace/ws-1787640212528-3baa013fc",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:43:32.528081+00:00",
      "updated_at": "2026-08-25T06:54:39.120409+00:00",
      "user_email": "shenjing.zhao@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "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_evidence": {
        "matched_terms": [
          "digest",
          "sql"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3627,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 2074,
          "reasoning_tokens": 0,
          "cache_read_tokens": 45055,
          "cache_write_tokens": 4959,
          "cost_amount": 0.3627384
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-be6f7bb4-5be4-4bd2-aa5d-136d26db90b3",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-be6f7bb4-5be4-4bd2-aa5d-136d26db90b3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T02:03:24.086800+00:00",
      "updated_at": "2026-08-25T02:03:24.086800+00:00",
      "user_email": "peiliang.liu@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "scenario_category_counts": {
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "duration",
          "p99",
          "p999",
          "qps"
        ],
        "message_count_used": 1,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3281,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 989,
          "reasoning_tokens": 0,
          "cache_read_tokens": 34791,
          "cache_write_tokens": 1423,
          "cost_amount": 0.3280764
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-d976a9a6-adcb-4c85-b886-a4ad411972a2",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-d976a9a6-adcb-4c85-b886-a4ad411972a2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T05:56:24.794696+00:00",
      "updated_at": "2026-08-25T05:56:24.794696+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": "transaction_or_lock_contention",
      "scenario_category_counts": {
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "悲观锁",
          "锁"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2983,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 651,
          "reasoning_tokens": 0,
          "cache_read_tokens": 28140,
          "cache_write_tokens": 544,
          "cost_amount": 0.2983086
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-23e4e125-60fc-428c-9f8a-a5cb32562ac8",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-23e4e125-60fc-428c-9f8a-a5cb32562ac8",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T05:49:20.687162+00:00",
      "updated_at": "2026-08-25T05:49:20.687162+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "pd_tso_or_scheduling",
      "scenario_category_counts": {
        "pd_tso_or_scheduling": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "pd",
          "timestamp"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2027,
        "message_count": 9,
        "user_message_count": 3,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 3888,
          "reasoning_tokens": 0,
          "cache_read_tokens": 15812,
          "cache_write_tokens": 7976,
          "cost_amount": 0.20268540000000002
        },
        "message_categories": {
          "流程控制/确认": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-5a6f7d07-daf0-4f88-a718-5a994dced9e3",
      "title": "Lark O11Y-2646977",
      "url": "https://investibook.com/workspace/lark-ws-5a6f7d07-daf0-4f88-a718-5a994dced9e3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T02:21:33.255641+00:00",
      "updated_at": "2026-08-25T02:21:33.255641+00:00",
      "user_email": "zhitao.chen@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Global Control",
      "team": "Global Control",
      "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": 0.121,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1037,
          "reasoning_tokens": 0,
          "cache_read_tokens": 16776,
          "cache_write_tokens": 3883,
          "cost_amount": 0.12102735
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-527c5e62-f0ba-41fc-9bdd-b278962fce6d",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-527c5e62-f0ba-41fc-9bdd-b278962fce6d",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T03:58:00.719512+00:00",
      "updated_at": "2026-08-25T03:58:00.719512+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "image-send",
      "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": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "index",
            "scan"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "pd",
            "scheduler"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "ticdc",
          "同步"
        ],
        "message_count_used": 25,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0846,
        "message_count": 51,
        "user_message_count": 25,
        "assistant_message_count": 26,
        "token_usage": {
          "interaction_records": 32,
          "input_tokens": 6189,
          "output_tokens": 7027,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 145024,
          "cost_amount": 3.79285575
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 17,
          "诊断启动": 2,
          "流程控制/确认": 1,
          "背景补充": 4
        }
      }
    },
    {
      "workspace_id": "ws-1787639273700-f71464533",
      "title": "对比一下这2个 plan",
      "url": "https://investibook.com/workspace/ws-1787639273700-f71464533",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:27:53.700022+00:00",
      "updated_at": "2026-08-25T06:29:07.731230+00:00",
      "user_email": "brian.w@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "index",
          "plan"
        ],
        "message_count_used": 1,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0787,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 1837,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13618,
          "cost_amount": 0.0786525
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-ddfbe503-bc99-4948-a844-9688f5006c66",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-ddfbe503-bc99-4948-a844-9688f5006c66",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T01:57:26.626867+00:00",
      "updated_at": "2026-08-25T01:57:26.626867+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 2,
          "matched_terms": [
            "restart",
            "重启"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tikv"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0738,
        "message_count": 22,
        "user_message_count": 10,
        "assistant_message_count": 12,
        "token_usage": {
          "interaction_records": 15,
          "input_tokens": 6783,
          "output_tokens": 5030,
          "reasoning_tokens": 0,
          "cache_read_tokens": 36357,
          "cache_write_tokens": 1704,
          "cost_amount": 0.6857454000000001
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 2,
          "诊断启动": 1,
          "解释追问": 1,
          "流程控制/确认": 1,
          "背景补充": 4
        }
      }
    },
    {
      "workspace_id": "lark-ws-43d09a6a-a0d2-4506-98ec-5bf4d87812a1",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-43d09a6a-a0d2-4506-98ec-5bf4d87812a1",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T04:11:34.416706+00:00",
      "updated_at": "2026-08-25T04:11:34.416706+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0663,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 936,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13934,
          "cost_amount": 0.0663225
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-70bad9e9-4b6f-457b-8b3a-7478e374b045",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-70bad9e9-4b6f-457b-8b3a-7478e374b045",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T08:50:08.821712+00:00",
      "updated_at": "2026-08-25T08:50:08.821712+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "coprocess",
          "coprocessor",
          "tikv"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0654,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 876,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13920,
          "cost_amount": 0.06537
        },
        "message_categories": {
          "解释追问": 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": 2.1513,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 9,
          "input_tokens": 1405,
          "output_tokens": 528,
          "reasoning_tokens": 0,
          "cache_read_tokens": 118070,
          "cache_write_tokens": 0,
          "cost_amount": 2.1634474499999987
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 6,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787185279628-e5ec5cc85",
      "title": "TCID-13060 Fujitsu アップグレード切り戻し相談",
      "url": "https://investibook.com/workspace/ws-1787185279628-e5ec5cc85",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-20T00:21:19.628104+00:00",
      "updated_at": "2026-08-25T02:58:48.611962+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": "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": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 2,
          "matched_terms": [
            "backup",
            "br"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "lag",
          "ticdc",
          "レプリケーション"
        ],
        "message_count_used": 11,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9897,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 85112,
          "cache_write_tokens": 0,
          "cost_amount": 0.9896500500000001
        },
        "message_categories": {
          "查询纠偏": 2,
          "Ad hoc 查询": 2,
          "方法论/能力咨询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787546985401-5dc8f8449",
      "title": "TCID-13072",
      "url": "https://investibook.com/workspace/ws-1787546985401-5dc8f8449",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-24T04:49:45.401656+00:00",
      "updated_at": "2026-08-24T04:49:56.831662+00:00",
      "user_email": "qiaoxinke@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "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": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "回答",
            "回答案"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "latency"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.161,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 5402,
          "cache_write_tokens": 1386,
          "cost_amount": 0.16103969999999998
        },
        "message_categories": {
          "查询纠偏": 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": 0.0121,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 9,
          "input_tokens": 1405,
          "output_tokens": 528,
          "reasoning_tokens": 0,
          "cache_read_tokens": 118070,
          "cache_write_tokens": 0,
          "cost_amount": 2.1634474499999987
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 6,
          "背景补充": 1
        }
      }
    }
  ],
  "all_changed_workspaces": [
    {
      "workspace_id": "ws-1787638960509-1eda55291",
      "title": "Cluster 10198021976582142638",
      "url": "https://investibook.com/workspace/ws-1787638960509-1eda55291",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:22:40.509963+00:00",
      "updated_at": "2026-08-25T06:22:40.509963+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": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 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": [
          "index",
          "query",
          "slow query",
          "sql"
        ],
        "message_count_used": 12,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 11.7833,
        "message_count": 21,
        "user_message_count": 10,
        "assistant_message_count": 9,
        "token_usage": {
          "interaction_records": 9,
          "input_tokens": 1,
          "output_tokens": 785,
          "reasoning_tokens": 0,
          "cache_read_tokens": 61956,
          "cache_write_tokens": 2247,
          "cost_amount": 11.78333185
        },
        "message_categories": {
          "Ad hoc 查询": 3,
          "解释追问": 1,
          "流程控制/确认": 4,
          "背景补充": 2
        }
      }
    },
    {
      "workspace_id": "ws-1787637185313-f4cf399a2",
      "title": "mercari TCID-13086",
      "url": "https://investibook.com/workspace/ws-1787637185313-f4cf399a2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T05:53:05.313173+00:00",
      "updated_at": "2026-08-25T05:53:16.798117+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": "memory_or_oom_pressure",
      "scenario_category_counts": {
        "memory_or_oom_pressure": 1
      },
      "scenario_confidence": 0.62,
      "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": [
          "oom",
          "メモリ"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 4.5715,
        "message_count": 18,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 8,
          "input_tokens": 10,
          "output_tokens": 2709,
          "reasoning_tokens": 0,
          "cache_read_tokens": 177863,
          "cache_write_tokens": 1919,
          "cost_amount": 4.5715152
        },
        "message_categories": {
          "查询纠偏": 1,
          "Ad hoc 查询": 6,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-527c5e62-f0ba-41fc-9bdd-b278962fce6d",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-527c5e62-f0ba-41fc-9bdd-b278962fce6d",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T03:58:00.719512+00:00",
      "updated_at": "2026-08-25T03:58:00.719512+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "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": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "index",
            "scan"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "pd",
            "scheduler"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "ticdc",
          "同步"
        ],
        "message_count_used": 25,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 3.7083,
        "message_count": 51,
        "user_message_count": 25,
        "assistant_message_count": 26,
        "token_usage": {
          "interaction_records": 32,
          "input_tokens": 6189,
          "output_tokens": 7027,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 145024,
          "cost_amount": 3.79285575
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 17,
          "诊断启动": 2,
          "流程控制/确认": 1,
          "背景补充": 4
        }
      }
    },
    {
      "workspace_id": "ws-1787637762639-1b03fd9be",
      "title": "TCID-13085",
      "url": "https://investibook.com/workspace/ws-1787637762639-1b03fd9be",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:02:42.640002+00:00",
      "updated_at": "2026-08-25T06:02:50.143478+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": "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": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.9891,
        "message_count": 11,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 10,
          "output_tokens": 1273,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 91434,
          "cost_amount": 2.98910715
        },
        "message_categories": {
          "Ad hoc 查询": 4,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787641617955-c4cd4dee3",
      "title": "TCOC-5862",
      "url": "https://investibook.com/workspace/ws-1787641617955-c4cd4dee3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T07:06:57.955593+00:00",
      "updated_at": "2026-08-25T07:08:36.054436+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": "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_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "restore"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.792,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 812,
          "reasoning_tokens": 0,
          "cache_read_tokens": 111997,
          "cache_write_tokens": 1794,
          "cost_amount": 2.7919549499999987
        },
        "message_categories": {
          "流程控制/确认": 1,
          "背景补充": 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": 2.1513,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 9,
          "input_tokens": 1405,
          "output_tokens": 528,
          "reasoning_tokens": 0,
          "cache_read_tokens": 118070,
          "cache_write_tokens": 0,
          "cost_amount": 2.1634474499999987
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 6,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787619377215-3da2fb8e3",
      "title": "ap-east-1-f01 这个essential cluster resource",
      "url": "https://investibook.com/workspace/ws-1787619377215-3da2fb8e3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T00:56:17.215334+00:00",
      "updated_at": "2026-08-25T01:06:54.262490+00:00",
      "user_email": "debin.jia@pingcap.com",
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "team": "KV Service",
      "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_evidence": {
        "matched_terms": [
          "qps",
          "ru"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.6625,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 2293,
          "reasoning_tokens": 0,
          "cache_read_tokens": 104449,
          "cache_write_tokens": 2909,
          "cost_amount": 1.6624866000000003
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-9e1a46fa-4041-47bb-9e00-a482402e05b9",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-9e1a46fa-4041-47bb-9e00-a482402e05b9",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T02:24:50.622768+00:00",
      "updated_at": "2026-08-25T02:24:50.622768+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": "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": [
          "query",
          "slow query"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.1984,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1281,
          "reasoning_tokens": 0,
          "cache_read_tokens": 97255,
          "cache_write_tokens": 642,
          "cost_amount": 1.19838015
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787656067359-1d1363fe6",
      "title": "TCID-13088",
      "url": "https://investibook.com/workspace/ws-1787656067359-1d1363fe6",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T11:07:47.359061+00:00",
      "updated_at": "2026-08-25T11:09:00.807029+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1,
        "memory_or_oom_pressure": 1,
        "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": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "memory_or_oom_pressure",
          "score": 2,
          "matched_terms": [
            "memory",
            "内存"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "memory",
          "region",
          "ru",
          "tikv",
          "内存"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.0114,
        "message_count": 7,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1018,
          "reasoning_tokens": 0,
          "cache_read_tokens": 55962,
          "cache_write_tokens": 2199,
          "cost_amount": 1.01140605
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "ws-1787185279628-e5ec5cc85",
      "title": "TCID-13060 Fujitsu アップグレード切り戻し相談",
      "url": "https://investibook.com/workspace/ws-1787185279628-e5ec5cc85",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-20T00:21:19.628104+00:00",
      "updated_at": "2026-08-25T02:58:48.611962+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": "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": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 2,
          "matched_terms": [
            "backup",
            "br"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "lag",
          "ticdc",
          "レプリケーション"
        ],
        "message_count_used": 11,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9897,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 85112,
          "cache_write_tokens": 0,
          "cost_amount": 0.9896500500000001
        },
        "message_categories": {
          "查询纠偏": 2,
          "Ad hoc 查询": 2,
          "方法论/能力咨询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-2450c9b2-9a38-4f06-9dc4-4a3330fc8710",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-2450c9b2-9a38-4f06-9dc4-4a3330fc8710",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T01:45:58.670600+00:00",
      "updated_at": "2026-08-25T01:45:58.670600+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": "transaction_or_lock_contention",
      "scenario_category_counts": {
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "lock",
          "冲突",
          "锁",
          "锁等待"
        ],
        "message_count_used": 3,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7578,
        "message_count": 9,
        "user_message_count": 3,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1156,
          "reasoning_tokens": 0,
          "cache_read_tokens": 103832,
          "cache_write_tokens": 357,
          "cost_amount": 0.7578406500000001
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-2f1d2be7-cc2b-4aa4-9001-e344e9e6e8fa",
      "title": "Lark O11Y-2647202",
      "url": "https://investibook.com/workspace/lark-ws-2f1d2be7-cc2b-4aa4-9001-e344e9e6e8fa",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:52:27.161825+00:00",
      "updated_at": "2026-08-25T06:52:27.161825+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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7557,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 612,
          "reasoning_tokens": 0,
          "cache_read_tokens": 94092,
          "cache_write_tokens": 1536,
          "cost_amount": 0.7557351000000001
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-9a3853dc-2ccb-4c44-a7b7-0958ed040dbb",
      "title": "Lark O11Y-2646789",
      "url": "https://investibook.com/workspace/lark-ws-9a3853dc-2ccb-4c44-a7b7-0958ed040dbb",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-24T22:16:28.778666+00:00",
      "updated_at": "2026-08-24T22:16:28.778666+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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6506,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 759,
          "reasoning_tokens": 0,
          "cache_read_tokens": 70670,
          "cache_write_tokens": 1590,
          "cost_amount": 0.6505574999999999
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-e7b58068-f248-4afe-9c81-d4fc6933029f",
      "title": "Lark O11Y-2646831",
      "url": "https://investibook.com/workspace/lark-ws-e7b58068-f248-4afe-9c81-d4fc6933029f",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-24T23:59:32.673364+00:00",
      "updated_at": "2026-08-24T23:59:32.673364+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": 0.6314,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 719,
          "reasoning_tokens": 0,
          "cache_read_tokens": 71486,
          "cache_write_tokens": 381,
          "cost_amount": 0.6314379
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-ec6c6299-c61c-4a90-8ed6-fe3c1025b090",
      "title": "Lark O11Y-2646732",
      "url": "https://investibook.com/workspace/lark-ws-ec6c6299-c61c-4a90-8ed6-fe3c1025b090",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-24T20:21:39.225898+00:00",
      "updated_at": "2026-08-24T20:21:39.225898+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": 0.6209,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1399,
          "reasoning_tokens": 0,
          "cache_read_tokens": 79244,
          "cache_write_tokens": 504,
          "cost_amount": 0.6209228999999999
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-ddfbe503-bc99-4948-a844-9688f5006c66",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-ddfbe503-bc99-4948-a844-9688f5006c66",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T01:57:26.626867+00:00",
      "updated_at": "2026-08-25T01:57:26.626867+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 2,
          "matched_terms": [
            "restart",
            "重启"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tikv"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6119,
        "message_count": 22,
        "user_message_count": 10,
        "assistant_message_count": 12,
        "token_usage": {
          "interaction_records": 15,
          "input_tokens": 6783,
          "output_tokens": 5030,
          "reasoning_tokens": 0,
          "cache_read_tokens": 36357,
          "cache_write_tokens": 1704,
          "cost_amount": 0.6857454000000001
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 2,
          "诊断启动": 1,
          "解释追问": 1,
          "流程控制/确认": 1,
          "背景补充": 4
        }
      }
    },
    {
      "workspace_id": "lark-ws-4a9e7f66-ac96-4b28-96c9-0956adf78f63",
      "title": "Lark O11Y-2646845",
      "url": "https://investibook.com/workspace/lark-ws-4a9e7f66-ac96-4b28-96c9-0956adf78f63",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-24T23:57:47.314294+00:00",
      "updated_at": "2026-08-24T23:57:47.314294+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": 0.413,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1243,
          "reasoning_tokens": 0,
          "cache_read_tokens": 64132,
          "cache_write_tokens": 628,
          "cost_amount": 0.4129839
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787640886861-91c3fcaf3",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1787640886861-91c3fcaf3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:54:46.861462+00:00",
      "updated_at": "2026-08-25T06:54:46.861462+00:00",
      "user_email": "shenjing.zhao@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "tikv",
          "热点"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3998,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1703,
          "reasoning_tokens": 0,
          "cache_read_tokens": 28986,
          "cache_write_tokens": 659,
          "cost_amount": 0.3998128499999999
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-a9d9b1ea-7b39-429f-9d42-7c9e50f51fe2",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-a9d9b1ea-7b39-429f-9d42-7c9e50f51fe2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T02:10:26.223829+00:00",
      "updated_at": "2026-08-25T02:10:26.223829+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "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": 0.3921,
        "message_count": 12,
        "user_message_count": 4,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1,
          "output_tokens": 368,
          "reasoning_tokens": 0,
          "cache_read_tokens": 36395,
          "cache_write_tokens": 698,
          "cost_amount": 0.39205935
        },
        "message_categories": {
          "解释追问": 2,
          "流程控制/确认": 2
        }
      }
    },
    {
      "workspace_id": "ws-1787647568516-ff0a63f0b",
      "title": "TCOC-5864",
      "url": "https://investibook.com/workspace/ws-1787647568516-ff0a63f0b",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T08:46:08.516433+00:00",
      "updated_at": "2026-08-25T08:46:19.435997+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": "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": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3893,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 508,
          "reasoning_tokens": 0,
          "cache_read_tokens": 32329,
          "cache_write_tokens": 26866,
          "cost_amount": 0.38934389999999997
        },
        "message_categories": {
          "产出物迭代": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787640212528-3baa013fc",
      "title": "325805451a9 & c6454d868c41c",
      "url": "https://investibook.com/workspace/ws-1787640212528-3baa013fc",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:43:32.528081+00:00",
      "updated_at": "2026-08-25T06:54:39.120409+00:00",
      "user_email": "shenjing.zhao@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "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_evidence": {
        "matched_terms": [
          "digest",
          "sql"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3627,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 2074,
          "reasoning_tokens": 0,
          "cache_read_tokens": 45055,
          "cache_write_tokens": 4959,
          "cost_amount": 0.3627384
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-be6f7bb4-5be4-4bd2-aa5d-136d26db90b3",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-be6f7bb4-5be4-4bd2-aa5d-136d26db90b3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T02:03:24.086800+00:00",
      "updated_at": "2026-08-25T02:03:24.086800+00:00",
      "user_email": "peiliang.liu@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "scenario_category_counts": {
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "duration",
          "p99",
          "p999",
          "qps"
        ],
        "message_count_used": 1,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3281,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 989,
          "reasoning_tokens": 0,
          "cache_read_tokens": 34791,
          "cache_write_tokens": 1423,
          "cost_amount": 0.3280764
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-d976a9a6-adcb-4c85-b886-a4ad411972a2",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-d976a9a6-adcb-4c85-b886-a4ad411972a2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T05:56:24.794696+00:00",
      "updated_at": "2026-08-25T05:56:24.794696+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": "transaction_or_lock_contention",
      "scenario_category_counts": {
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "悲观锁",
          "锁"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2983,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 651,
          "reasoning_tokens": 0,
          "cache_read_tokens": 28140,
          "cache_write_tokens": 544,
          "cost_amount": 0.2983086
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-23e4e125-60fc-428c-9f8a-a5cb32562ac8",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-23e4e125-60fc-428c-9f8a-a5cb32562ac8",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T05:49:20.687162+00:00",
      "updated_at": "2026-08-25T05:49:20.687162+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "pd_tso_or_scheduling",
      "scenario_category_counts": {
        "pd_tso_or_scheduling": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "pd",
          "timestamp"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2027,
        "message_count": 9,
        "user_message_count": 3,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 3888,
          "reasoning_tokens": 0,
          "cache_read_tokens": 15812,
          "cache_write_tokens": 7976,
          "cost_amount": 0.20268540000000002
        },
        "message_categories": {
          "流程控制/确认": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1787546985401-5dc8f8449",
      "title": "TCID-13072",
      "url": "https://investibook.com/workspace/ws-1787546985401-5dc8f8449",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-24T04:49:45.401656+00:00",
      "updated_at": "2026-08-24T04:49:56.831662+00:00",
      "user_email": "qiaoxinke@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "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": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "回答",
            "回答案"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "latency"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.161,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 5402,
          "cache_write_tokens": 1386,
          "cost_amount": 0.16103969999999998
        },
        "message_categories": {
          "查询纠偏": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-5a6f7d07-daf0-4f88-a718-5a994dced9e3",
      "title": "Lark O11Y-2646977",
      "url": "https://investibook.com/workspace/lark-ws-5a6f7d07-daf0-4f88-a718-5a994dced9e3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T02:21:33.255641+00:00",
      "updated_at": "2026-08-25T02:21:33.255641+00:00",
      "user_email": "zhitao.chen@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Global Control",
      "team": "Global Control",
      "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": 0.121,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1037,
          "reasoning_tokens": 0,
          "cache_read_tokens": 16776,
          "cache_write_tokens": 3883,
          "cost_amount": 0.12102735
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-527c5e62-f0ba-41fc-9bdd-b278962fce6d",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-527c5e62-f0ba-41fc-9bdd-b278962fce6d",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T03:58:00.719512+00:00",
      "updated_at": "2026-08-25T03:58:00.719512+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "image-send",
      "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": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "index",
            "scan"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "pd",
            "scheduler"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "ticdc",
          "同步"
        ],
        "message_count_used": 25,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0846,
        "message_count": 51,
        "user_message_count": 25,
        "assistant_message_count": 26,
        "token_usage": {
          "interaction_records": 32,
          "input_tokens": 6189,
          "output_tokens": 7027,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 145024,
          "cost_amount": 3.79285575
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 17,
          "诊断启动": 2,
          "流程控制/确认": 1,
          "背景补充": 4
        }
      }
    },
    {
      "workspace_id": "ws-1787639273700-f71464533",
      "title": "对比一下这2个 plan",
      "url": "https://investibook.com/workspace/ws-1787639273700-f71464533",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T06:27:53.700022+00:00",
      "updated_at": "2026-08-25T06:29:07.731230+00:00",
      "user_email": "brian.w@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "index",
          "plan"
        ],
        "message_count_used": 1,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0787,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 1837,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13618,
          "cost_amount": 0.0786525
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-ddfbe503-bc99-4948-a844-9688f5006c66",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-ddfbe503-bc99-4948-a844-9688f5006c66",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T01:57:26.626867+00:00",
      "updated_at": "2026-08-25T01:57:26.626867+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 2,
          "matched_terms": [
            "restart",
            "重启"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tikv"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0738,
        "message_count": 22,
        "user_message_count": 10,
        "assistant_message_count": 12,
        "token_usage": {
          "interaction_records": 15,
          "input_tokens": 6783,
          "output_tokens": 5030,
          "reasoning_tokens": 0,
          "cache_read_tokens": 36357,
          "cache_write_tokens": 1704,
          "cost_amount": 0.6857454000000001
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 2,
          "诊断启动": 1,
          "解释追问": 1,
          "流程控制/确认": 1,
          "背景补充": 4
        }
      }
    },
    {
      "workspace_id": "lark-ws-43d09a6a-a0d2-4506-98ec-5bf4d87812a1",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-43d09a6a-a0d2-4506-98ec-5bf4d87812a1",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T04:11:34.416706+00:00",
      "updated_at": "2026-08-25T04:11:34.416706+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0663,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 936,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13934,
          "cost_amount": 0.0663225
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-70bad9e9-4b6f-457b-8b3a-7478e374b045",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-70bad9e9-4b6f-457b-8b3a-7478e374b045",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-25T08:50:08.821712+00:00",
      "updated_at": "2026-08-25T08:50:08.821712+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "coprocess",
          "coprocessor",
          "tikv"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0654,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 876,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13920,
          "cost_amount": 0.06537
        },
        "message_categories": {
          "解释追问": 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": 0.0121,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 9,
          "input_tokens": 1405,
          "output_tokens": 528,
          "reasoning_tokens": 0,
          "cache_read_tokens": 118070,
          "cache_write_tokens": 0,
          "cost_amount": 2.1634474499999987
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 6,
          "背景补充": 1
        }
      }
    }
  ]
}