{
  "date": "2026-06-05",
  "timezone": "Asia/Shanghai",
  "window_start": "2026-06-05T00:00:00+08:00",
  "window_end": "2026-06-06T00:00:00+08:00",
  "granularity": "daily_workspace_changes",
  "summary": {
    "new_workspace_count": 29,
    "updated_existing_workspace_count": 15,
    "changed_workspace_count": 44
  },
  "new_workspaces": [
    {
      "workspace_id": "ws-1780626679715-191baf8df",
      "title": "PROD]ChangefeedStateFailed",
      "url": "https://investibook.com/workspace/ws-1780626679715-191baf8df",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:31:19.715787+00:00",
      "updated_at": "2026-06-05T02:34:48.924059+00:00",
      "user_email": "yuhang.shi@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1,
        "backup_or_restore": 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": "cdc_or_replication_lag",
          "score": 5,
          "matched_terms": [
            "cdc",
            "changefeed",
            "ticdc"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 3,
          "matched_terms": [
            "backup",
            "br",
            "snapshot"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "cdc",
          "changefeed",
          "duration",
          "ru",
          "snapshot",
          "ticdc"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.0163,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 4010,
          "output_tokens": 1786,
          "reasoning_tokens": 0,
          "cache_read_tokens": 136532,
          "cache_write_tokens": 381,
          "cost_amount": 2.02836705
        },
        "message_categories": {
          "Ad hoc 查询": 5
        }
      }
    },
    {
      "workspace_id": "ws-1780645342262-75a760863",
      "title": "10542225016081428407 这个集群刚刚升级完成，检查下 tidb log",
      "url": "https://investibook.com/workspace/ws-1780645342262-75a760863",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:42:22.262648+00:00",
      "updated_at": "2026-06-05T07:44:04.348933+00:00",
      "user_email": "wenxuan.zhang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability 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"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.0403,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4407,
          "output_tokens": 1354,
          "reasoning_tokens": 0,
          "cache_read_tokens": 69386,
          "cache_write_tokens": 2040,
          "cost_amount": 1.0584383999999998
        },
        "message_categories": {
          "产出物迭代": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780650442165-634e23584",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780650442165-634e23584",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T09:07:22.165754+00:00",
      "updated_at": "2026-06-05T09:07:22.165754+00:00",
      "user_email": "zefeng.nie@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,
        "tikv_hotspot_or_coprocessor": 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": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "compaction",
            "io",
            "磁盘"
          ]
        },
        {
          "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": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "duration",
          "io",
          "region",
          "ru",
          "tikv",
          "磁盘"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9231,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10901,
          "output_tokens": 2125,
          "reasoning_tokens": 0,
          "cache_read_tokens": 73270,
          "cache_write_tokens": 6177,
          "cost_amount": 0.96097305
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780644816139-0007872e3",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780644816139-0007872e3",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:33:36.139025+00:00",
      "updated_at": "2026-06-05T07:33:36.139025+00:00",
      "user_email": "zhouzemin@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "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": 0.692,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 3384,
          "output_tokens": 744,
          "reasoning_tokens": 0,
          "cache_read_tokens": 1664,
          "cache_write_tokens": 58198,
          "cost_amount": 0.7005917999999999
        },
        "message_categories": {
          "诊断启动": 1,
          "方法论/能力咨询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780629475457-4fe29250e",
      "title": "ST-2732",
      "url": "https://investibook.com/workspace/ws-1780629475457-4fe29250e",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T03:17:55.457608+00:00",
      "updated_at": "2026-06-05T03:18:05.328232+00:00",
      "user_email": "yikai.puah@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "pd_tso_or_scheduling",
      "scenario_category_counts": {
        "pd_tso_or_scheduling": 1,
        "sql_plan_or_query": 1,
        "transaction_or_lock_contention": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 4,
          "matched_terms": [
            "leader",
            "operator",
            "scheduler",
            "timestamp"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "index",
            "query",
            "scan"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 3,
          "matched_terms": [
            "lock",
            "prewrite",
            "txn"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 3,
          "matched_terms": [
            "region",
            "store:",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "disk",
            "io",
            "rocksdb"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "disk",
          "index",
          "io",
          "leader",
          "lock",
          "operator",
          "prewrite",
          "query",
          "region",
          "rocksdb",
          "scan",
          "scheduler",
          "store:",
          "tikv",
          "timestamp",
          "txn"
        ],
        "message_count_used": 11,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6615,
        "message_count": 21,
        "user_message_count": 10,
        "assistant_message_count": 10,
        "token_usage": {
          "interaction_records": 10,
          "input_tokens": 10,
          "output_tokens": 803,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 30116,
          "cost_amount": 0.6615387000000001
        },
        "message_categories": {
          "诊断启动": 1,
          "解释追问": 2,
          "流程控制/确认": 5,
          "方法论/能力咨询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780635115496-1d3e9aa8b",
      "title": "https://tidb.atlassian.net/browse/TCID-12771",
      "url": "https://investibook.com/workspace/ws-1780635115496-1d3e9aa8b",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T04:51:55.496982+00:00",
      "updated_at": "2026-06-05T04:52:23.426656+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": "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": 0.4411,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 5404,
          "output_tokens": 2489,
          "reasoning_tokens": 0,
          "cache_read_tokens": 57028,
          "cache_write_tokens": 6691,
          "cost_amount": 0.45995984999999995
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780644920143-ab22daebc",
      "title": "1372813089209274541 这个集群刚刚升级完成，检查下 tidb log",
      "url": "https://investibook.com/workspace/ws-1780644920143-ab22daebc",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:35:20.143300+00:00",
      "updated_at": "2026-06-05T07:37:42.443877+00:00",
      "user_email": "wenxuan.zhang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability 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"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.428,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 6274,
          "output_tokens": 700,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54434,
          "cache_write_tokens": 776,
          "cost_amount": 0.45363885
        },
        "message_categories": {
          "产出物迭代": 3,
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780649522989-134e96ec2",
      "title": "SELECT",
      "url": "https://investibook.com/workspace/ws-1780649522989-134e96ec2",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T08:52:02.989807+00:00",
      "updated_at": "2026-06-05T08:52:42.288448+00:00",
      "user_email": "yikai.puah@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 2,
          "matched_terms": [
            "disk",
            "io"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "index",
          "query"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.336,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10,
          "output_tokens": 1738,
          "reasoning_tokens": 0,
          "cache_read_tokens": 28313,
          "cache_write_tokens": 1782,
          "cost_amount": 0.3359871
        },
        "message_categories": {
          "查询纠偏": 2,
          "产出物迭代": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-571f260c-dc6f-40a6-bc6e-1fba0e3834e1",
      "title": "Lark O11Y-2582320",
      "url": "https://investibook.com/workspace/lark-ws-571f260c-dc6f-40a6-bc6e-1fba0e3834e1",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T03:30:33.413182+00:00",
      "updated_at": "2026-06-05T03:30:33.413182+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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2741,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 1010,
          "reasoning_tokens": 0,
          "cache_read_tokens": 31055,
          "cache_write_tokens": 345,
          "cost_amount": 0.2741127
        },
        "message_categories": {
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-03535773-ffb2-4d44-a88c-ac5740aa28a7",
      "title": "Lark O11Y-2582262",
      "url": "https://investibook.com/workspace/lark-ws-03535773-ffb2-4d44-a88c-ac5740aa28a7",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T01:47:20.121928+00:00",
      "updated_at": "2026-06-05T01:47:20.121928+00:00",
      "user_email": "xieyujie@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "延迟"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2517,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 6311,
          "output_tokens": 2096,
          "reasoning_tokens": 0,
          "cache_read_tokens": 37758,
          "cache_write_tokens": 7863,
          "cost_amount": 0.27404925
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780612292030-d52210922",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780612292030-d52210922",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-04T22:31:32.030571+00:00",
      "updated_at": "2026-06-04T22:31:32.030571+00:00",
      "user_email": "zhangjinpeng@pingcap.com",
      "team_path": "Engineering Group / Storage Service Engineering",
      "team": "Storage Service Engineering",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.249,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 482,
          "reasoning_tokens": 0,
          "cache_read_tokens": 32444,
          "cache_write_tokens": 604,
          "cost_amount": 0.2489514
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780640430549-440270429",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780640430549-440270429",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T06:20:30.549554+00:00",
      "updated_at": "2026-06-05T06:20:30.549554+00:00",
      "user_email": "lanyuan@pingcap.com",
      "team_path": "APAC Business Group / APAC Presales",
      "team": "APAC Presales",
      "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": [
          "慢查询",
          "执行计划"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.189,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 652,
          "reasoning_tokens": 0,
          "cache_read_tokens": 21939,
          "cache_write_tokens": 438,
          "cost_amount": 0.18899085000000002
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780626501670-c8ae0f2c9",
      "title": "O11Y-2582122",
      "url": "https://investibook.com/workspace/ws-1780626501670-c8ae0f2c9",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:28:21.670352+00:00",
      "updated_at": "2026-06-05T02:30:24.385425+00:00",
      "user_email": "yansu.yuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "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": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1574,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 826,
          "reasoning_tokens": 0,
          "cache_read_tokens": 23943,
          "cache_write_tokens": 953,
          "cost_amount": 0.1574037
        },
        "message_categories": {
          "流程控制/确认": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-82087467-3ef3-4dc5-a011-5c40545a024c",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-82087467-3ef3-4dc5-a011-5c40545a024c",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T03:14:21.694897+00:00",
      "updated_at": "2026-06-05T03:14:21.694897+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1459,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 2336,
          "reasoning_tokens": 0,
          "cache_read_tokens": 18846,
          "cache_write_tokens": 6324,
          "cost_amount": 0.1458891
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-01900ba5-2f71-4061-9ad9-4b60419148c0",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-01900ba5-2f71-4061-9ad9-4b60419148c0",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T09:50:23.169421+00:00",
      "updated_at": "2026-06-05T09:50:23.169421+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": "ddl_or_schema_change",
      "scenario_category_counts": {
        "ddl_or_schema_change": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "ddl",
          "ddl job",
          "show ddl"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1344,
        "message_count": 12,
        "user_message_count": 4,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10,
          "output_tokens": 858,
          "reasoning_tokens": 0,
          "cache_read_tokens": 17942,
          "cache_write_tokens": 934,
          "cost_amount": 0.1344306
        },
        "message_categories": {
          "Ad hoc 查询": 4
        }
      }
    },
    {
      "workspace_id": "lark-ws-6882a0d6-2e1c-4a10-883f-d6f1499dd59b",
      "title": "Lark O11Y-2582263",
      "url": "https://investibook.com/workspace/lark-ws-6882a0d6-2e1c-4a10-883f-d6f1499dd59b",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:29:48.031963+00:00",
      "updated_at": "2026-06-05T02:29:48.031963+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": 0.1339,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 886,
          "reasoning_tokens": 0,
          "cache_read_tokens": 17293,
          "cache_write_tokens": 10907,
          "cost_amount": 0.1338822
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-b27adb62-43e7-4734-a6ef-38e49358edda",
      "title": "Lark O11Y-2582458",
      "url": "https://investibook.com/workspace/lark-ws-b27adb62-43e7-4734-a6ef-38e49358edda",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T06:29:48.334157+00:00",
      "updated_at": "2026-06-05T06:29:48.334157+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": 0.1315,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 830,
          "reasoning_tokens": 0,
          "cache_read_tokens": 17211,
          "cache_write_tokens": 10606,
          "cost_amount": 0.13145955
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-af224668-d04a-4553-b21d-9db22c772cc8",
      "title": "Lark O11Y-2582245",
      "url": "https://investibook.com/workspace/lark-ws-af224668-d04a-4553-b21d-9db22c772cc8",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:28:07.126798+00:00",
      "updated_at": "2026-06-05T02:28:07.126798+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": 0.1305,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 619,
          "reasoning_tokens": 0,
          "cache_read_tokens": 17191,
          "cache_write_tokens": 11245,
          "cost_amount": 0.130455
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780626419660-316239bc2",
      "title": "你能访问 staging 集群吗",
      "url": "https://investibook.com/workspace/ws-1780626419660-316239bc2",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:26:59.660637+00:00",
      "updated_at": "2026-06-05T02:27:20.763404+00:00",
      "user_email": "ruihao.chen@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Scalable SQL & Data Service",
      "team": "Scalable SQL & Data Service",
      "channel": "web",
      "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": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1169,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 96,
          "reasoning_tokens": 0,
          "cache_read_tokens": 19033,
          "cache_write_tokens": 250,
          "cost_amount": 0.11686274999999999
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-897c72ca-3f02-42b5-982b-6997a751c4ac",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-897c72ca-3f02-42b5-982b-6997a751c4ac",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T04:08:14.601468+00:00",
      "updated_at": "2026-06-05T04:08:14.601468+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "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": [
          "sql",
          "topsql"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1149,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 1139,
          "reasoning_tokens": 0,
          "cache_read_tokens": 15898,
          "cache_write_tokens": 2123,
          "cost_amount": 0.11491815
        },
        "message_categories": {
          "诊断启动": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-2de7e91e-4c3e-46dd-aaf0-f70f70118852",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-2de7e91e-4c3e-46dd-aaf0-f70f70118852",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T06:29:44.168788+00:00",
      "updated_at": "2026-06-05T06:29:44.168788+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": "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": [
          "disk"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.089,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 507,
          "reasoning_tokens": 0,
          "cache_read_tokens": 16940,
          "cache_write_tokens": 1180,
          "cost_amount": 0.0890457
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-f06abe2a-7546-4d1a-864b-a3f34082fdf7",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-f06abe2a-7546-4d1a-864b-a3f34082fdf7",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T08:11:28.260810+00:00",
      "updated_at": "2026-06-05T08:11:28.260810+00:00",
      "user_email": "chunlu.zhang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "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": 0.0637,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 318,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 15717,
          "cost_amount": 0.06373875
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780650442165-634e23584",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780650442165-634e23584",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T09:07:22.165754+00:00",
      "updated_at": "2026-06-05T09:07:22.165754+00:00",
      "user_email": "zefeng.nie@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1,
        "tikv_hotspot_or_coprocessor": 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": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "compaction",
            "io",
            "磁盘"
          ]
        },
        {
          "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": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "duration",
          "io",
          "region",
          "ru",
          "tikv",
          "磁盘"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0378,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10901,
          "output_tokens": 2125,
          "reasoning_tokens": 0,
          "cache_read_tokens": 73270,
          "cache_write_tokens": 6177,
          "cost_amount": 0.96097305
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780644920143-ab22daebc",
      "title": "1372813089209274541 这个集群刚刚升级完成，检查下 tidb log",
      "url": "https://investibook.com/workspace/ws-1780644920143-ab22daebc",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:35:20.143300+00:00",
      "updated_at": "2026-06-05T07:37:42.443877+00:00",
      "user_email": "wenxuan.zhang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability Service",
      "channel": "evidence-postpass",
      "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"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0256,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 6274,
          "output_tokens": 700,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54434,
          "cache_write_tokens": 776,
          "cost_amount": 0.45363885
        },
        "message_categories": {
          "产出物迭代": 3,
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-03535773-ffb2-4d44-a88c-ac5740aa28a7",
      "title": "Lark O11Y-2582262",
      "url": "https://investibook.com/workspace/lark-ws-03535773-ffb2-4d44-a88c-ac5740aa28a7",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T01:47:20.121928+00:00",
      "updated_at": "2026-06-05T01:47:20.121928+00:00",
      "user_email": "xieyujie@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "延迟"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0224,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 6311,
          "output_tokens": 2096,
          "reasoning_tokens": 0,
          "cache_read_tokens": 37758,
          "cache_write_tokens": 7863,
          "cost_amount": 0.27404925
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780635115496-1d3e9aa8b",
      "title": "https://tidb.atlassian.net/browse/TCID-12771",
      "url": "https://investibook.com/workspace/ws-1780635115496-1d3e9aa8b",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T04:51:55.496982+00:00",
      "updated_at": "2026-06-05T04:52:23.426656+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "evidence-postpass",
      "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": 0.0189,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 5404,
          "output_tokens": 2489,
          "reasoning_tokens": 0,
          "cache_read_tokens": 57028,
          "cache_write_tokens": 6691,
          "cost_amount": 0.45995984999999995
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780645342262-75a760863",
      "title": "10542225016081428407 这个集群刚刚升级完成，检查下 tidb log",
      "url": "https://investibook.com/workspace/ws-1780645342262-75a760863",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:42:22.262648+00:00",
      "updated_at": "2026-06-05T07:44:04.348933+00:00",
      "user_email": "wenxuan.zhang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability Service",
      "channel": "evidence-postpass",
      "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"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0182,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4407,
          "output_tokens": 1354,
          "reasoning_tokens": 0,
          "cache_read_tokens": 69386,
          "cache_write_tokens": 2040,
          "cost_amount": 1.0584383999999998
        },
        "message_categories": {
          "产出物迭代": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780626679715-191baf8df",
      "title": "PROD]ChangefeedStateFailed",
      "url": "https://investibook.com/workspace/ws-1780626679715-191baf8df",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:31:19.715787+00:00",
      "updated_at": "2026-06-05T02:34:48.924059+00:00",
      "user_email": "yuhang.shi@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1,
        "backup_or_restore": 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": "cdc_or_replication_lag",
          "score": 5,
          "matched_terms": [
            "cdc",
            "changefeed",
            "ticdc"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 3,
          "matched_terms": [
            "backup",
            "br",
            "snapshot"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "cdc",
          "changefeed",
          "duration",
          "ru",
          "snapshot",
          "ticdc"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0121,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 4010,
          "output_tokens": 1786,
          "reasoning_tokens": 0,
          "cache_read_tokens": 136532,
          "cache_write_tokens": 381,
          "cost_amount": 2.02836705
        },
        "message_categories": {
          "Ad hoc 查询": 5
        }
      }
    },
    {
      "workspace_id": "ws-1780644816139-0007872e3",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780644816139-0007872e3",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:33:36.139025+00:00",
      "updated_at": "2026-06-05T07:33:36.139025+00:00",
      "user_email": "zhouzemin@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "channel": "evidence-postpass",
      "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": 0.0086,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 3384,
          "output_tokens": 744,
          "reasoning_tokens": 0,
          "cache_read_tokens": 1664,
          "cache_write_tokens": 58198,
          "cost_amount": 0.7005917999999999
        },
        "message_categories": {
          "诊断启动": 1,
          "方法论/能力咨询": 1
        }
      }
    }
  ],
  "updated_existing_workspaces": [
    {
      "workspace_id": "ws-1780294338249-09431d92b",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780294338249-09431d92b",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-01T06:12:18.249974+00:00",
      "updated_at": "2026-06-01T06:12:18.249974+00:00",
      "user_email": "yangkexin.liang@pingcap.com",
      "team_path": "Engineering Group / Enterprise Customer Engineering",
      "team": "Enterprise Customer Engineering",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.9,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 4,
          "matched_terms": [
            "cpu",
            "duration",
            "p99",
            "p999"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "inspection_or_report_generation",
          "score": 3,
          "matched_terms": [
            "inspection",
            "巡检",
            "报告"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "skill_or_workflow_setup",
          "score": 3,
          "matched_terms": [
            "skill",
            "skills",
            "加载"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "evict",
            "leader"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "product_usage_or_admin",
          "score": 2,
          "matched_terms": [
            "feishu",
            "权限"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "append-log-duration",
          "commit-log-duration",
          "compaction",
          "io",
          "iops",
          "pending compaction bytes",
          "raft",
          "raftstore",
          "rocksdb",
          "write queue"
        ],
        "message_count_used": 26,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.1976,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1716,
          "output_tokens": 82,
          "reasoning_tokens": 0,
          "cache_read_tokens": 19984,
          "cache_write_tokens": 1168,
          "cost_amount": 1.2027455999999983
        },
        "message_categories": {
          "产出物迭代": 2
        }
      }
    },
    {
      "workspace_id": "ws-1780669929460-46423aee1",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1780669929460-46423aee1",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "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": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.1872,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 10,
          "input_tokens": 22458,
          "output_tokens": 2368,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 66938,
          "cost_amount": 1.2721978500000002
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1780554260331-d475448e3",
      "title": "KONAMI　メジャスピ",
      "url": "https://investibook.com/workspace/ws-1780554260331-d475448e3",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T06:24:20.331546+00:00",
      "updated_at": "2026-06-05T02:31:40.700437+00:00",
      "user_email": "taichi.kusaka@pingcap.com",
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "channel": "web",
      "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": [
          "st-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.1116,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 4607,
          "output_tokens": 4890,
          "reasoning_tokens": 0,
          "cache_read_tokens": 83392,
          "cache_write_tokens": 3487,
          "cost_amount": 1.13082825
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780577921669-4ef107b63",
      "title": "TCID-12769",
      "url": "https://investibook.com/workspace/ws-1780577921669-4ef107b63",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T12:58:41.669636+00:00",
      "updated_at": "2026-06-04T12:58:51.108455+00:00",
      "user_email": "mizuki.masuda@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical 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_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tikv"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9146,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4366,
          "output_tokens": 1256,
          "reasoning_tokens": 0,
          "cache_read_tokens": 90034,
          "cache_write_tokens": 0,
          "cost_amount": 0.9336091500000001
        },
        "message_categories": {
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "ws-1780384678445-78b5f7da9",
      "title": "https://tidb.atlassian.net/browse/TCID-12755",
      "url": "https://investibook.com/workspace/ws-1780384678445-78b5f7da9",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-02T07:17:58.446007+00:00",
      "updated_at": "2026-06-02T07:18:33.040588+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": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "メール",
            "回答"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "dual region backup",
          "pitr",
          "バックアップ"
        ],
        "message_count_used": 20,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6637,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 2811,
          "output_tokens": 276,
          "reasoning_tokens": 0,
          "cache_read_tokens": 1486,
          "cache_write_tokens": 626,
          "cost_amount": 0.6741610500000005
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780277369278-c6cbf0161",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1780277369278-c6cbf0161",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "qiaodan@pingcap.com",
      "team_path": "Product / TiDB X Core Product",
      "team": "TiDB X Core Product",
      "channel": "web",
      "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": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4638,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 3954,
          "output_tokens": 217,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14206,
          "cache_write_tokens": 0,
          "cost_amount": 0.4789100999999966
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1780541785371-3c5126187",
      "title": "这个query 没有慢查询，却出现在慢查询上",
      "url": "https://investibook.com/workspace/ws-1780541785371-3c5126187",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T02:56:25.371082+00:00",
      "updated_at": "2026-06-04T02:58:17.227219+00:00",
      "user_email": "yikai.puah@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.9,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 2,
          "matched_terms": [
            "disk",
            "io"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "index",
          "plan",
          "query",
          "sql",
          "慢查询",
          "执行计划"
        ],
        "message_count_used": 14,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1217,
        "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": 0,
          "cache_write_tokens": 30732,
          "cost_amount": 0.12168000000000001
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-a55196b5-4566-4dbb-9352-4a161cfbebf7",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-a55196b5-4566-4dbb-9352-4a161cfbebf7",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-05-26T08:13:34.769824+00:00",
      "updated_at": "2026-05-26T08:13:34.769824+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "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": 0.111,
        "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": 1203,
          "cache_write_tokens": 0,
          "cost_amount": 0.11101050000000001
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780669929460-46423aee1",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1780669929460-46423aee1",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "",
      "team_path": "",
      "team": "",
      "channel": "evidence-postpass",
      "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": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.085,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 10,
          "input_tokens": 22458,
          "output_tokens": 2368,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 66938,
          "cost_amount": 1.2721978500000002
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1780566177587-481e3288f",
      "title": "scale out 的时候报错",
      "url": "https://investibook.com/workspace/ws-1780566177587-481e3288f",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T09:42:57.587805+00:00",
      "updated_at": "2026-06-04T09:43:27.968778+00:00",
      "user_email": "yikai.puah@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "cluster_topology_or_scaling",
      "scenario_category_counts": {
        "cluster_topology_or_scaling": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "gc_or_allocator_pressure",
          "score": 2,
          "matched_terms": [
            "gc",
            "runtime"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "scale"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0815,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 598,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 16490,
          "cost_amount": 0.08151374999999998
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780554260331-d475448e3",
      "title": "KONAMI　メジャスピ",
      "url": "https://investibook.com/workspace/ws-1780554260331-d475448e3",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T06:24:20.331546+00:00",
      "updated_at": "2026-06-05T02:31:40.700437+00:00",
      "user_email": "taichi.kusaka@pingcap.com",
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "channel": "evidence-postpass",
      "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": [
          "st-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0192,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 4607,
          "output_tokens": 4890,
          "reasoning_tokens": 0,
          "cache_read_tokens": 83392,
          "cache_write_tokens": 3487,
          "cost_amount": 1.13082825
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780577921669-4ef107b63",
      "title": "TCID-12769",
      "url": "https://investibook.com/workspace/ws-1780577921669-4ef107b63",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T12:58:41.669636+00:00",
      "updated_at": "2026-06-04T12:58:51.108455+00:00",
      "user_email": "mizuki.masuda@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "evidence-postpass",
      "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": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tikv"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.019,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4366,
          "output_tokens": 1256,
          "reasoning_tokens": 0,
          "cache_read_tokens": 90034,
          "cache_write_tokens": 0,
          "cost_amount": 0.9336091500000001
        },
        "message_categories": {
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "ws-1780277369278-c6cbf0161",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1780277369278-c6cbf0161",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "",
      "team_path": "",
      "team": "",
      "channel": "evidence-postpass",
      "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": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0151,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 3954,
          "output_tokens": 217,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14206,
          "cache_write_tokens": 0,
          "cost_amount": 0.4789100999999966
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1780384678445-78b5f7da9",
      "title": "https://tidb.atlassian.net/browse/TCID-12755",
      "url": "https://investibook.com/workspace/ws-1780384678445-78b5f7da9",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-02T07:17:58.446007+00:00",
      "updated_at": "2026-06-02T07:18:33.040588+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "メール",
            "回答"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "dual region backup",
          "pitr",
          "バックアップ"
        ],
        "message_count_used": 20,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0105,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 2811,
          "output_tokens": 276,
          "reasoning_tokens": 0,
          "cache_read_tokens": 1486,
          "cache_write_tokens": 626,
          "cost_amount": 0.6741610500000005
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780294338249-09431d92b",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780294338249-09431d92b",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-01T06:12:18.249974+00:00",
      "updated_at": "2026-06-01T06:12:18.249974+00:00",
      "user_email": "yangkexin.liang@pingcap.com",
      "team_path": "Engineering Group / Enterprise Customer Engineering",
      "team": "Enterprise Customer Engineering",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.9,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 4,
          "matched_terms": [
            "cpu",
            "duration",
            "p99",
            "p999"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "inspection_or_report_generation",
          "score": 3,
          "matched_terms": [
            "inspection",
            "巡检",
            "报告"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "skill_or_workflow_setup",
          "score": 3,
          "matched_terms": [
            "skill",
            "skills",
            "加载"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "evict",
            "leader"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "product_usage_or_admin",
          "score": 2,
          "matched_terms": [
            "feishu",
            "权限"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "append-log-duration",
          "commit-log-duration",
          "compaction",
          "io",
          "iops",
          "pending compaction bytes",
          "raft",
          "raftstore",
          "rocksdb",
          "write queue"
        ],
        "message_count_used": 26,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0052,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1716,
          "output_tokens": 82,
          "reasoning_tokens": 0,
          "cache_read_tokens": 19984,
          "cache_write_tokens": 1168,
          "cost_amount": 1.2027455999999983
        },
        "message_categories": {
          "产出物迭代": 2
        }
      }
    }
  ],
  "all_changed_workspaces": [
    {
      "workspace_id": "ws-1780626679715-191baf8df",
      "title": "PROD]ChangefeedStateFailed",
      "url": "https://investibook.com/workspace/ws-1780626679715-191baf8df",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:31:19.715787+00:00",
      "updated_at": "2026-06-05T02:34:48.924059+00:00",
      "user_email": "yuhang.shi@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1,
        "backup_or_restore": 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": "cdc_or_replication_lag",
          "score": 5,
          "matched_terms": [
            "cdc",
            "changefeed",
            "ticdc"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 3,
          "matched_terms": [
            "backup",
            "br",
            "snapshot"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "cdc",
          "changefeed",
          "duration",
          "ru",
          "snapshot",
          "ticdc"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.0163,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 4010,
          "output_tokens": 1786,
          "reasoning_tokens": 0,
          "cache_read_tokens": 136532,
          "cache_write_tokens": 381,
          "cost_amount": 2.02836705
        },
        "message_categories": {
          "Ad hoc 查询": 5
        }
      }
    },
    {
      "workspace_id": "ws-1780294338249-09431d92b",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780294338249-09431d92b",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-01T06:12:18.249974+00:00",
      "updated_at": "2026-06-01T06:12:18.249974+00:00",
      "user_email": "yangkexin.liang@pingcap.com",
      "team_path": "Engineering Group / Enterprise Customer Engineering",
      "team": "Enterprise Customer Engineering",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.9,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 4,
          "matched_terms": [
            "cpu",
            "duration",
            "p99",
            "p999"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "inspection_or_report_generation",
          "score": 3,
          "matched_terms": [
            "inspection",
            "巡检",
            "报告"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "skill_or_workflow_setup",
          "score": 3,
          "matched_terms": [
            "skill",
            "skills",
            "加载"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "evict",
            "leader"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "product_usage_or_admin",
          "score": 2,
          "matched_terms": [
            "feishu",
            "权限"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "append-log-duration",
          "commit-log-duration",
          "compaction",
          "io",
          "iops",
          "pending compaction bytes",
          "raft",
          "raftstore",
          "rocksdb",
          "write queue"
        ],
        "message_count_used": 26,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.1976,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1716,
          "output_tokens": 82,
          "reasoning_tokens": 0,
          "cache_read_tokens": 19984,
          "cache_write_tokens": 1168,
          "cost_amount": 1.2027455999999983
        },
        "message_categories": {
          "产出物迭代": 2
        }
      }
    },
    {
      "workspace_id": "ws-1780669929460-46423aee1",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1780669929460-46423aee1",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "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": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.1872,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 10,
          "input_tokens": 22458,
          "output_tokens": 2368,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 66938,
          "cost_amount": 1.2721978500000002
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1780554260331-d475448e3",
      "title": "KONAMI　メジャスピ",
      "url": "https://investibook.com/workspace/ws-1780554260331-d475448e3",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T06:24:20.331546+00:00",
      "updated_at": "2026-06-05T02:31:40.700437+00:00",
      "user_email": "taichi.kusaka@pingcap.com",
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "channel": "web",
      "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": [
          "st-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.1116,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 4607,
          "output_tokens": 4890,
          "reasoning_tokens": 0,
          "cache_read_tokens": 83392,
          "cache_write_tokens": 3487,
          "cost_amount": 1.13082825
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780645342262-75a760863",
      "title": "10542225016081428407 这个集群刚刚升级完成，检查下 tidb log",
      "url": "https://investibook.com/workspace/ws-1780645342262-75a760863",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:42:22.262648+00:00",
      "updated_at": "2026-06-05T07:44:04.348933+00:00",
      "user_email": "wenxuan.zhang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability 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"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.0403,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4407,
          "output_tokens": 1354,
          "reasoning_tokens": 0,
          "cache_read_tokens": 69386,
          "cache_write_tokens": 2040,
          "cost_amount": 1.0584383999999998
        },
        "message_categories": {
          "产出物迭代": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780650442165-634e23584",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780650442165-634e23584",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T09:07:22.165754+00:00",
      "updated_at": "2026-06-05T09:07:22.165754+00:00",
      "user_email": "zefeng.nie@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,
        "tikv_hotspot_or_coprocessor": 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": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "compaction",
            "io",
            "磁盘"
          ]
        },
        {
          "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": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "duration",
          "io",
          "region",
          "ru",
          "tikv",
          "磁盘"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9231,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10901,
          "output_tokens": 2125,
          "reasoning_tokens": 0,
          "cache_read_tokens": 73270,
          "cache_write_tokens": 6177,
          "cost_amount": 0.96097305
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780577921669-4ef107b63",
      "title": "TCID-12769",
      "url": "https://investibook.com/workspace/ws-1780577921669-4ef107b63",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T12:58:41.669636+00:00",
      "updated_at": "2026-06-04T12:58:51.108455+00:00",
      "user_email": "mizuki.masuda@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical 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_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tikv"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9146,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4366,
          "output_tokens": 1256,
          "reasoning_tokens": 0,
          "cache_read_tokens": 90034,
          "cache_write_tokens": 0,
          "cost_amount": 0.9336091500000001
        },
        "message_categories": {
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "ws-1780644816139-0007872e3",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780644816139-0007872e3",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:33:36.139025+00:00",
      "updated_at": "2026-06-05T07:33:36.139025+00:00",
      "user_email": "zhouzemin@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "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": 0.692,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 3384,
          "output_tokens": 744,
          "reasoning_tokens": 0,
          "cache_read_tokens": 1664,
          "cache_write_tokens": 58198,
          "cost_amount": 0.7005917999999999
        },
        "message_categories": {
          "诊断启动": 1,
          "方法论/能力咨询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780384678445-78b5f7da9",
      "title": "https://tidb.atlassian.net/browse/TCID-12755",
      "url": "https://investibook.com/workspace/ws-1780384678445-78b5f7da9",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-02T07:17:58.446007+00:00",
      "updated_at": "2026-06-02T07:18:33.040588+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": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "メール",
            "回答"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "dual region backup",
          "pitr",
          "バックアップ"
        ],
        "message_count_used": 20,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6637,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 2811,
          "output_tokens": 276,
          "reasoning_tokens": 0,
          "cache_read_tokens": 1486,
          "cache_write_tokens": 626,
          "cost_amount": 0.6741610500000005
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780629475457-4fe29250e",
      "title": "ST-2732",
      "url": "https://investibook.com/workspace/ws-1780629475457-4fe29250e",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T03:17:55.457608+00:00",
      "updated_at": "2026-06-05T03:18:05.328232+00:00",
      "user_email": "yikai.puah@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "pd_tso_or_scheduling",
      "scenario_category_counts": {
        "pd_tso_or_scheduling": 1,
        "sql_plan_or_query": 1,
        "transaction_or_lock_contention": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 4,
          "matched_terms": [
            "leader",
            "operator",
            "scheduler",
            "timestamp"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "index",
            "query",
            "scan"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 3,
          "matched_terms": [
            "lock",
            "prewrite",
            "txn"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 3,
          "matched_terms": [
            "region",
            "store:",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "disk",
            "io",
            "rocksdb"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "disk",
          "index",
          "io",
          "leader",
          "lock",
          "operator",
          "prewrite",
          "query",
          "region",
          "rocksdb",
          "scan",
          "scheduler",
          "store:",
          "tikv",
          "timestamp",
          "txn"
        ],
        "message_count_used": 11,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6615,
        "message_count": 21,
        "user_message_count": 10,
        "assistant_message_count": 10,
        "token_usage": {
          "interaction_records": 10,
          "input_tokens": 10,
          "output_tokens": 803,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 30116,
          "cost_amount": 0.6615387000000001
        },
        "message_categories": {
          "诊断启动": 1,
          "解释追问": 2,
          "流程控制/确认": 5,
          "方法论/能力咨询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780277369278-c6cbf0161",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1780277369278-c6cbf0161",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "qiaodan@pingcap.com",
      "team_path": "Product / TiDB X Core Product",
      "team": "TiDB X Core Product",
      "channel": "web",
      "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": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4638,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 3954,
          "output_tokens": 217,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14206,
          "cache_write_tokens": 0,
          "cost_amount": 0.4789100999999966
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1780635115496-1d3e9aa8b",
      "title": "https://tidb.atlassian.net/browse/TCID-12771",
      "url": "https://investibook.com/workspace/ws-1780635115496-1d3e9aa8b",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T04:51:55.496982+00:00",
      "updated_at": "2026-06-05T04:52:23.426656+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": "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": 0.4411,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 5404,
          "output_tokens": 2489,
          "reasoning_tokens": 0,
          "cache_read_tokens": 57028,
          "cache_write_tokens": 6691,
          "cost_amount": 0.45995984999999995
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780644920143-ab22daebc",
      "title": "1372813089209274541 这个集群刚刚升级完成，检查下 tidb log",
      "url": "https://investibook.com/workspace/ws-1780644920143-ab22daebc",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:35:20.143300+00:00",
      "updated_at": "2026-06-05T07:37:42.443877+00:00",
      "user_email": "wenxuan.zhang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability 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"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.428,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 6274,
          "output_tokens": 700,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54434,
          "cache_write_tokens": 776,
          "cost_amount": 0.45363885
        },
        "message_categories": {
          "产出物迭代": 3,
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780649522989-134e96ec2",
      "title": "SELECT",
      "url": "https://investibook.com/workspace/ws-1780649522989-134e96ec2",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T08:52:02.989807+00:00",
      "updated_at": "2026-06-05T08:52:42.288448+00:00",
      "user_email": "yikai.puah@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 2,
          "matched_terms": [
            "disk",
            "io"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "index",
          "query"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.336,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10,
          "output_tokens": 1738,
          "reasoning_tokens": 0,
          "cache_read_tokens": 28313,
          "cache_write_tokens": 1782,
          "cost_amount": 0.3359871
        },
        "message_categories": {
          "查询纠偏": 2,
          "产出物迭代": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-571f260c-dc6f-40a6-bc6e-1fba0e3834e1",
      "title": "Lark O11Y-2582320",
      "url": "https://investibook.com/workspace/lark-ws-571f260c-dc6f-40a6-bc6e-1fba0e3834e1",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T03:30:33.413182+00:00",
      "updated_at": "2026-06-05T03:30:33.413182+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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2741,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 1010,
          "reasoning_tokens": 0,
          "cache_read_tokens": 31055,
          "cache_write_tokens": 345,
          "cost_amount": 0.2741127
        },
        "message_categories": {
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-03535773-ffb2-4d44-a88c-ac5740aa28a7",
      "title": "Lark O11Y-2582262",
      "url": "https://investibook.com/workspace/lark-ws-03535773-ffb2-4d44-a88c-ac5740aa28a7",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T01:47:20.121928+00:00",
      "updated_at": "2026-06-05T01:47:20.121928+00:00",
      "user_email": "xieyujie@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "延迟"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2517,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 6311,
          "output_tokens": 2096,
          "reasoning_tokens": 0,
          "cache_read_tokens": 37758,
          "cache_write_tokens": 7863,
          "cost_amount": 0.27404925
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780612292030-d52210922",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780612292030-d52210922",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-04T22:31:32.030571+00:00",
      "updated_at": "2026-06-04T22:31:32.030571+00:00",
      "user_email": "zhangjinpeng@pingcap.com",
      "team_path": "Engineering Group / Storage Service Engineering",
      "team": "Storage Service Engineering",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.249,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 482,
          "reasoning_tokens": 0,
          "cache_read_tokens": 32444,
          "cache_write_tokens": 604,
          "cost_amount": 0.2489514
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780640430549-440270429",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780640430549-440270429",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T06:20:30.549554+00:00",
      "updated_at": "2026-06-05T06:20:30.549554+00:00",
      "user_email": "lanyuan@pingcap.com",
      "team_path": "APAC Business Group / APAC Presales",
      "team": "APAC Presales",
      "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": [
          "慢查询",
          "执行计划"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.189,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 652,
          "reasoning_tokens": 0,
          "cache_read_tokens": 21939,
          "cache_write_tokens": 438,
          "cost_amount": 0.18899085000000002
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780626501670-c8ae0f2c9",
      "title": "O11Y-2582122",
      "url": "https://investibook.com/workspace/ws-1780626501670-c8ae0f2c9",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:28:21.670352+00:00",
      "updated_at": "2026-06-05T02:30:24.385425+00:00",
      "user_email": "yansu.yuan@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "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": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1574,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 826,
          "reasoning_tokens": 0,
          "cache_read_tokens": 23943,
          "cache_write_tokens": 953,
          "cost_amount": 0.1574037
        },
        "message_categories": {
          "流程控制/确认": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-82087467-3ef3-4dc5-a011-5c40545a024c",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-82087467-3ef3-4dc5-a011-5c40545a024c",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T03:14:21.694897+00:00",
      "updated_at": "2026-06-05T03:14:21.694897+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1459,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 2336,
          "reasoning_tokens": 0,
          "cache_read_tokens": 18846,
          "cache_write_tokens": 6324,
          "cost_amount": 0.1458891
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-01900ba5-2f71-4061-9ad9-4b60419148c0",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-01900ba5-2f71-4061-9ad9-4b60419148c0",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T09:50:23.169421+00:00",
      "updated_at": "2026-06-05T09:50:23.169421+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": "ddl_or_schema_change",
      "scenario_category_counts": {
        "ddl_or_schema_change": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "ddl",
          "ddl job",
          "show ddl"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1344,
        "message_count": 12,
        "user_message_count": 4,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10,
          "output_tokens": 858,
          "reasoning_tokens": 0,
          "cache_read_tokens": 17942,
          "cache_write_tokens": 934,
          "cost_amount": 0.1344306
        },
        "message_categories": {
          "Ad hoc 查询": 4
        }
      }
    },
    {
      "workspace_id": "lark-ws-6882a0d6-2e1c-4a10-883f-d6f1499dd59b",
      "title": "Lark O11Y-2582263",
      "url": "https://investibook.com/workspace/lark-ws-6882a0d6-2e1c-4a10-883f-d6f1499dd59b",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:29:48.031963+00:00",
      "updated_at": "2026-06-05T02:29:48.031963+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": 0.1339,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 886,
          "reasoning_tokens": 0,
          "cache_read_tokens": 17293,
          "cache_write_tokens": 10907,
          "cost_amount": 0.1338822
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-b27adb62-43e7-4734-a6ef-38e49358edda",
      "title": "Lark O11Y-2582458",
      "url": "https://investibook.com/workspace/lark-ws-b27adb62-43e7-4734-a6ef-38e49358edda",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T06:29:48.334157+00:00",
      "updated_at": "2026-06-05T06:29:48.334157+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": 0.1315,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 830,
          "reasoning_tokens": 0,
          "cache_read_tokens": 17211,
          "cache_write_tokens": 10606,
          "cost_amount": 0.13145955
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-af224668-d04a-4553-b21d-9db22c772cc8",
      "title": "Lark O11Y-2582245",
      "url": "https://investibook.com/workspace/lark-ws-af224668-d04a-4553-b21d-9db22c772cc8",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:28:07.126798+00:00",
      "updated_at": "2026-06-05T02:28:07.126798+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": 0.1305,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 619,
          "reasoning_tokens": 0,
          "cache_read_tokens": 17191,
          "cache_write_tokens": 11245,
          "cost_amount": 0.130455
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780541785371-3c5126187",
      "title": "这个query 没有慢查询，却出现在慢查询上",
      "url": "https://investibook.com/workspace/ws-1780541785371-3c5126187",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T02:56:25.371082+00:00",
      "updated_at": "2026-06-04T02:58:17.227219+00:00",
      "user_email": "yikai.puah@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.9,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 2,
          "matched_terms": [
            "disk",
            "io"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "index",
          "plan",
          "query",
          "sql",
          "慢查询",
          "执行计划"
        ],
        "message_count_used": 14,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1217,
        "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": 0,
          "cache_write_tokens": 30732,
          "cost_amount": 0.12168000000000001
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780626419660-316239bc2",
      "title": "你能访问 staging 集群吗",
      "url": "https://investibook.com/workspace/ws-1780626419660-316239bc2",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:26:59.660637+00:00",
      "updated_at": "2026-06-05T02:27:20.763404+00:00",
      "user_email": "ruihao.chen@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Scalable SQL & Data Service",
      "team": "Scalable SQL & Data Service",
      "channel": "web",
      "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": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1169,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 96,
          "reasoning_tokens": 0,
          "cache_read_tokens": 19033,
          "cache_write_tokens": 250,
          "cost_amount": 0.11686274999999999
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-897c72ca-3f02-42b5-982b-6997a751c4ac",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-897c72ca-3f02-42b5-982b-6997a751c4ac",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T04:08:14.601468+00:00",
      "updated_at": "2026-06-05T04:08:14.601468+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "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": [
          "sql",
          "topsql"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1149,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 1139,
          "reasoning_tokens": 0,
          "cache_read_tokens": 15898,
          "cache_write_tokens": 2123,
          "cost_amount": 0.11491815
        },
        "message_categories": {
          "诊断启动": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-a55196b5-4566-4dbb-9352-4a161cfbebf7",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-a55196b5-4566-4dbb-9352-4a161cfbebf7",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-05-26T08:13:34.769824+00:00",
      "updated_at": "2026-05-26T08:13:34.769824+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "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": 0.111,
        "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": 1203,
          "cache_write_tokens": 0,
          "cost_amount": 0.11101050000000001
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-2de7e91e-4c3e-46dd-aaf0-f70f70118852",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-2de7e91e-4c3e-46dd-aaf0-f70f70118852",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T06:29:44.168788+00:00",
      "updated_at": "2026-06-05T06:29:44.168788+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": "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": [
          "disk"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.089,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 507,
          "reasoning_tokens": 0,
          "cache_read_tokens": 16940,
          "cache_write_tokens": 1180,
          "cost_amount": 0.0890457
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780669929460-46423aee1",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1780669929460-46423aee1",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "",
      "team_path": "",
      "team": "",
      "channel": "evidence-postpass",
      "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": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.085,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 10,
          "input_tokens": 22458,
          "output_tokens": 2368,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 66938,
          "cost_amount": 1.2721978500000002
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1780566177587-481e3288f",
      "title": "scale out 的时候报错",
      "url": "https://investibook.com/workspace/ws-1780566177587-481e3288f",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T09:42:57.587805+00:00",
      "updated_at": "2026-06-04T09:43:27.968778+00:00",
      "user_email": "yikai.puah@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "cluster_topology_or_scaling",
      "scenario_category_counts": {
        "cluster_topology_or_scaling": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "gc_or_allocator_pressure",
          "score": 2,
          "matched_terms": [
            "gc",
            "runtime"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "scale"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0815,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 598,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 16490,
          "cost_amount": 0.08151374999999998
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-f06abe2a-7546-4d1a-864b-a3f34082fdf7",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-f06abe2a-7546-4d1a-864b-a3f34082fdf7",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T08:11:28.260810+00:00",
      "updated_at": "2026-06-05T08:11:28.260810+00:00",
      "user_email": "chunlu.zhang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "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": 0.0637,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 318,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 15717,
          "cost_amount": 0.06373875
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780650442165-634e23584",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780650442165-634e23584",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T09:07:22.165754+00:00",
      "updated_at": "2026-06-05T09:07:22.165754+00:00",
      "user_email": "zefeng.nie@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1,
        "tikv_hotspot_or_coprocessor": 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": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "compaction",
            "io",
            "磁盘"
          ]
        },
        {
          "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": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "duration",
          "io",
          "region",
          "ru",
          "tikv",
          "磁盘"
        ],
        "message_count_used": 6,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0378,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10901,
          "output_tokens": 2125,
          "reasoning_tokens": 0,
          "cache_read_tokens": 73270,
          "cache_write_tokens": 6177,
          "cost_amount": 0.96097305
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780644920143-ab22daebc",
      "title": "1372813089209274541 这个集群刚刚升级完成，检查下 tidb log",
      "url": "https://investibook.com/workspace/ws-1780644920143-ab22daebc",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:35:20.143300+00:00",
      "updated_at": "2026-06-05T07:37:42.443877+00:00",
      "user_email": "wenxuan.zhang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability Service",
      "channel": "evidence-postpass",
      "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"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0256,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 6274,
          "output_tokens": 700,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54434,
          "cache_write_tokens": 776,
          "cost_amount": 0.45363885
        },
        "message_categories": {
          "产出物迭代": 3,
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-03535773-ffb2-4d44-a88c-ac5740aa28a7",
      "title": "Lark O11Y-2582262",
      "url": "https://investibook.com/workspace/lark-ws-03535773-ffb2-4d44-a88c-ac5740aa28a7",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T01:47:20.121928+00:00",
      "updated_at": "2026-06-05T01:47:20.121928+00:00",
      "user_email": "xieyujie@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "延迟"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0224,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 6311,
          "output_tokens": 2096,
          "reasoning_tokens": 0,
          "cache_read_tokens": 37758,
          "cache_write_tokens": 7863,
          "cost_amount": 0.27404925
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780554260331-d475448e3",
      "title": "KONAMI　メジャスピ",
      "url": "https://investibook.com/workspace/ws-1780554260331-d475448e3",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T06:24:20.331546+00:00",
      "updated_at": "2026-06-05T02:31:40.700437+00:00",
      "user_email": "taichi.kusaka@pingcap.com",
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "channel": "evidence-postpass",
      "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": [
          "st-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0192,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 4607,
          "output_tokens": 4890,
          "reasoning_tokens": 0,
          "cache_read_tokens": 83392,
          "cache_write_tokens": 3487,
          "cost_amount": 1.13082825
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780577921669-4ef107b63",
      "title": "TCID-12769",
      "url": "https://investibook.com/workspace/ws-1780577921669-4ef107b63",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-04T12:58:41.669636+00:00",
      "updated_at": "2026-06-04T12:58:51.108455+00:00",
      "user_email": "mizuki.masuda@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "evidence-postpass",
      "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": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "region",
          "tikv"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.019,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4366,
          "output_tokens": 1256,
          "reasoning_tokens": 0,
          "cache_read_tokens": 90034,
          "cache_write_tokens": 0,
          "cost_amount": 0.9336091500000001
        },
        "message_categories": {
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "ws-1780635115496-1d3e9aa8b",
      "title": "https://tidb.atlassian.net/browse/TCID-12771",
      "url": "https://investibook.com/workspace/ws-1780635115496-1d3e9aa8b",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T04:51:55.496982+00:00",
      "updated_at": "2026-06-05T04:52:23.426656+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "evidence-postpass",
      "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": 0.0189,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 5404,
          "output_tokens": 2489,
          "reasoning_tokens": 0,
          "cache_read_tokens": 57028,
          "cache_write_tokens": 6691,
          "cost_amount": 0.45995984999999995
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780645342262-75a760863",
      "title": "10542225016081428407 这个集群刚刚升级完成，检查下 tidb log",
      "url": "https://investibook.com/workspace/ws-1780645342262-75a760863",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:42:22.262648+00:00",
      "updated_at": "2026-06-05T07:44:04.348933+00:00",
      "user_email": "wenxuan.zhang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability Service",
      "channel": "evidence-postpass",
      "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"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0182,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4407,
          "output_tokens": 1354,
          "reasoning_tokens": 0,
          "cache_read_tokens": 69386,
          "cache_write_tokens": 2040,
          "cost_amount": 1.0584383999999998
        },
        "message_categories": {
          "产出物迭代": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780277369278-c6cbf0161",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1780277369278-c6cbf0161",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "",
      "team_path": "",
      "team": "",
      "channel": "evidence-postpass",
      "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": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0151,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 3954,
          "output_tokens": 217,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14206,
          "cache_write_tokens": 0,
          "cost_amount": 0.4789100999999966
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1780626679715-191baf8df",
      "title": "PROD]ChangefeedStateFailed",
      "url": "https://investibook.com/workspace/ws-1780626679715-191baf8df",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T02:31:19.715787+00:00",
      "updated_at": "2026-06-05T02:34:48.924059+00:00",
      "user_email": "yuhang.shi@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1,
        "backup_or_restore": 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": "cdc_or_replication_lag",
          "score": 5,
          "matched_terms": [
            "cdc",
            "changefeed",
            "ticdc"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 3,
          "matched_terms": [
            "backup",
            "br",
            "snapshot"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "cdc",
          "changefeed",
          "duration",
          "ru",
          "snapshot",
          "ticdc"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0121,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 4010,
          "output_tokens": 1786,
          "reasoning_tokens": 0,
          "cache_read_tokens": 136532,
          "cache_write_tokens": 381,
          "cost_amount": 2.02836705
        },
        "message_categories": {
          "Ad hoc 查询": 5
        }
      }
    },
    {
      "workspace_id": "ws-1780384678445-78b5f7da9",
      "title": "https://tidb.atlassian.net/browse/TCID-12755",
      "url": "https://investibook.com/workspace/ws-1780384678445-78b5f7da9",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-02T07:17:58.446007+00:00",
      "updated_at": "2026-06-02T07:18:33.040588+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "メール",
            "回答"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br",
          "dual region backup",
          "pitr",
          "バックアップ"
        ],
        "message_count_used": 20,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0105,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 2811,
          "output_tokens": 276,
          "reasoning_tokens": 0,
          "cache_read_tokens": 1486,
          "cache_write_tokens": 626,
          "cost_amount": 0.6741610500000005
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780644816139-0007872e3",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780644816139-0007872e3",
      "workspace_lifecycle": "new",
      "created_at": "2026-06-05T07:33:36.139025+00:00",
      "updated_at": "2026-06-05T07:33:36.139025+00:00",
      "user_email": "zhouzemin@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "channel": "evidence-postpass",
      "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": 0.0086,
        "message_count": 5,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 3384,
          "output_tokens": 744,
          "reasoning_tokens": 0,
          "cache_read_tokens": 1664,
          "cache_write_tokens": 58198,
          "cost_amount": 0.7005917999999999
        },
        "message_categories": {
          "诊断启动": 1,
          "方法论/能力咨询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1780294338249-09431d92b",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1780294338249-09431d92b",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-01T06:12:18.249974+00:00",
      "updated_at": "2026-06-01T06:12:18.249974+00:00",
      "user_email": "yangkexin.liang@pingcap.com",
      "team_path": "Engineering Group / Enterprise Customer Engineering",
      "team": "Enterprise Customer Engineering",
      "channel": "evidence-postpass",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.9,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 4,
          "matched_terms": [
            "cpu",
            "duration",
            "p99",
            "p999"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "inspection_or_report_generation",
          "score": 3,
          "matched_terms": [
            "inspection",
            "巡检",
            "报告"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "skill_or_workflow_setup",
          "score": 3,
          "matched_terms": [
            "skill",
            "skills",
            "加载"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "evict",
            "leader"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "product_usage_or_admin",
          "score": 2,
          "matched_terms": [
            "feishu",
            "权限"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "append-log-duration",
          "commit-log-duration",
          "compaction",
          "io",
          "iops",
          "pending compaction bytes",
          "raft",
          "raftstore",
          "rocksdb",
          "write queue"
        ],
        "message_count_used": 26,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0052,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1716,
          "output_tokens": 82,
          "reasoning_tokens": 0,
          "cache_read_tokens": 19984,
          "cache_write_tokens": 1168,
          "cost_amount": 1.2027455999999983
        },
        "message_categories": {
          "产出物迭代": 2
        }
      }
    }
  ]
}
