{
  "date": "2026-07-27",
  "timezone": "Asia/Shanghai",
  "window_start": "2026-07-27T00:00:00+08:00",
  "window_end": "2026-07-28T00:00:00+08:00",
  "granularity": "daily_workspace_changes",
  "summary": {
    "new_workspace_count": 20,
    "updated_existing_workspace_count": 9,
    "changed_workspace_count": 29
  },
  "new_workspaces": [
    {
      "workspace_id": "ws-1785143382073-4ef398f3e",
      "title": "https://tidb.atlassian.net/browse/O11Y-2624250",
      "url": "https://investibook.com/workspace/ws-1785143382073-4ef398f3e",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T09:09:42.073455+00:00",
      "updated_at": "2026-07-27T09:10:21.301627+00:00",
      "user_email": "tailingxiang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Intelligent Query Processing Service / SQL Optimization & Execution",
      "team": "SQL Optimization & Execution",
      "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_evidence": {
        "matched_terms": [
          "br",
          "恢复"
        ],
        "message_count_used": 3,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 4.8989,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1015,
          "reasoning_tokens": 0,
          "cache_read_tokens": 143479,
          "cache_write_tokens": 724,
          "cost_amount": 4.898938500000002
        },
        "message_categories": {
          "Ad hoc 查询": 2,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785135120902-ca1ddb869",
      "title": "TCOC-5677",
      "url": "https://investibook.com/workspace/ws-1785135120902-ca1ddb869",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T06:52:00.902948+00:00",
      "updated_at": "2026-07-27T06:52:08.926942+00:00",
      "user_email": "chenqingjing@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "operator",
            "timestamp"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.7601,
        "message_count": 11,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 1,
          "output_tokens": 385,
          "reasoning_tokens": 0,
          "cache_read_tokens": 140706,
          "cache_write_tokens": 4423,
          "cost_amount": 2.7600867
        },
        "message_categories": {
          "诊断启动": 1,
          "解释追问": 1,
          "流程控制/确认": 3
        }
      }
    },
    {
      "workspace_id": "lark-ws-38cf1ee1-b148-4367-8327-d4b0f68b20dc",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-38cf1ee1-b148-4367-8327-d4b0f68b20dc",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T09:29:37.560432+00:00",
      "updated_at": "2026-07-27T09:29:37.560432+00:00",
      "user_email": "jingyi.yao@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7487,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 994,
          "reasoning_tokens": 0,
          "cache_read_tokens": 99045,
          "cache_write_tokens": 300,
          "cost_amount": 1.74865995
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785114978637-b1e691c03",
      "title": "INSERT INTO t_im_member",
      "url": "https://investibook.com/workspace/ws-1785114978637-b1e691c03",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T01:16:18.637856+00:00",
      "updated_at": "2026-07-27T01:27:35.876845+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": "transaction_or_lock_contention",
      "scenario_category_counts": {
        "transaction_or_lock_contention": 1,
        "sql_plan_or_query": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "storage_or_io_bottleneck": 1,
        "memory_or_oom_pressure": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 5,
          "matched_terms": [
            "deadlock",
            "lock",
            "txn",
            "冲突",
            "锁"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 4,
          "matched_terms": [
            "query",
            "scan",
            "sql",
            "索引"
          ]
        },
        {
          "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_group": "diagnosis",
          "scenario_category": "memory_or_oom_pressure",
          "score": 2,
          "matched_terms": [
            "memory",
            "oom"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "deadlock",
          "disk",
          "io",
          "lock",
          "memory",
          "oom",
          "query",
          "region",
          "rocksdb",
          "scan",
          "sql",
          "store:",
          "tikv",
          "txn",
          "冲突",
          "索引"
        ],
        "message_count_used": 14,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7067,
        "message_count": 28,
        "user_message_count": 14,
        "assistant_message_count": 14,
        "token_usage": {
          "interaction_records": 14,
          "input_tokens": 10,
          "output_tokens": 4770,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 55333,
          "cost_amount": 1.7066601000000001
        },
        "message_categories": {
          "查询纠偏": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 2,
          "解释追问": 2,
          "流程控制/确认": 6,
          "背景补充": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785121042660-c5ece5032",
      "title": "medibaのインポートエラー",
      "url": "https://investibook.com/workspace/ws-1785121042660-c5ece5032",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T02:57:22.660134+00:00",
      "updated_at": "2026-07-27T02:57:35.237580+00:00",
      "user_email": "yoshiaki.yamasaki@pingcap.com",
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "data_import_or_load",
      "scenario_category_counts": {
        "data_import_or_load": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "インポート"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.0253,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 1442,
          "reasoning_tokens": 0,
          "cache_read_tokens": 96919,
          "cache_write_tokens": 316,
          "cost_amount": 1.0253092499999998
        },
        "message_categories": {
          "查询纠偏": 1,
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785122330572-87f3b856d",
      "title": "mediba import precheck error",
      "url": "https://investibook.com/workspace/ws-1785122330572-87f3b856d",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T03:18:50.572201+00:00",
      "updated_at": "2026-07-27T03:19:00.534320+00:00",
      "user_email": "shigeyuki.fujishima@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "data_import_or_load",
      "scenario_category_counts": {
        "data_import_or_load": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "import"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9624,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 2239,
          "reasoning_tokens": 0,
          "cache_read_tokens": 100899,
          "cache_write_tokens": 1484,
          "cost_amount": 0.96240795
        },
        "message_categories": {
          "Ad hoc 查询": 2,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-3418a5ca-a97e-41de-ae46-b5579f11c373",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-3418a5ca-a97e-41de-ae46-b5579f11c373",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T07:29:28.506703+00:00",
      "updated_at": "2026-07-27T07:29:28.506703+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "disk",
          "io"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.5778,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 4028,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54495,
          "cache_write_tokens": 5958,
          "cost_amount": 0.5777704499999999
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785110878881-7f04a5b2a",
      "title": "TCID-12964",
      "url": "https://investibook.com/workspace/ws-1785110878881-7f04a5b2a",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T00:07:58.881802+00:00",
      "updated_at": "2026-07-27T00:08:07.638316+00:00",
      "user_email": "qiaoxinke@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "data_import_or_load",
      "scenario_category_counts": {
        "data_import_or_load": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "csv",
          "import",
          "ファイル"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4725,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 1926,
          "reasoning_tokens": 0,
          "cache_read_tokens": 43862,
          "cache_write_tokens": 3036,
          "cost_amount": 0.4724718
        },
        "message_categories": {
          "解释追问": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785138801561-2a881a0d5",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1785138801561-2a881a0d5",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T07:53:21.561832+00:00",
      "updated_at": "2026-07-27T07:53:21.561832+00:00",
      "user_email": "debin.jia@pingcap.com",
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "team": "KV Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2993,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 2260,
          "reasoning_tokens": 0,
          "cache_read_tokens": 28703,
          "cache_write_tokens": 34323,
          "cost_amount": 0.299277
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-affb1a04cb23390198c1bc086c373255",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-affb1a04cb23390198c1bc086c373255",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:52:46.364413+00:00",
      "updated_at": "2026-07-27T11:52:46.364413+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "cli",
      "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": 0.2347,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4721,
          "output_tokens": 6304,
          "reasoning_tokens": 0,
          "cache_read_tokens": 27909,
          "cache_write_tokens": 10260,
          "cost_amount": 0.30203865
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-414e395e-bb6d-4f23-a396-715f4532851a",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-414e395e-bb6d-4f23-a396-715f4532851a",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T14:13:33.038871+00:00",
      "updated_at": "2026-07-27T14:13:33.038871+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "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",
          "sql"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2333,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 2735,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 21684,
          "cost_amount": 0.23325
        },
        "message_categories": {
          "查询纠偏": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-fcceef48-6035-40e1-ac3e-f10277dc6cbf",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-fcceef48-6035-40e1-ac3e-f10277dc6cbf",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T08:38:49.992294+00:00",
      "updated_at": "2026-07-27T08:38:49.992294+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1,
        "storage_or_io_bottleneck": 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": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "plan",
            "sql",
            "索引"
          ]
        },
        {
          "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": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "disk",
          "duration",
          "io",
          "plan",
          "ru",
          "sql",
          "索引"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2202,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 2109,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 25157,
          "cost_amount": 0.22022625
        },
        "message_categories": {
          "解释追问": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-677618bbfee7b0772104f85ef7de56bb",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-677618bbfee7b0772104f85ef7de56bb",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:59:11.450370+00:00",
      "updated_at": "2026-07-27T11:59:11.450370+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "cli",
      "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": 0.2078,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4721,
          "output_tokens": 5351,
          "reasoning_tokens": 0,
          "cache_read_tokens": 20513,
          "cache_write_tokens": 13367,
          "cost_amount": 0.2723544
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-4e5258441f6177123e36b45edb804926",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-4e5258441f6177123e36b45edb804926",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:41:32.492992+00:00",
      "updated_at": "2026-07-27T11:41:32.492992+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "cli",
      "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": 0.1916,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1787,
          "output_tokens": 3934,
          "reasoning_tokens": 0,
          "cache_read_tokens": 29290,
          "cache_write_tokens": 1165,
          "cost_amount": 0.21910455
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-38943f38-c774-42cf-8452-edef80b1ca84",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-38943f38-c774-42cf-8452-edef80b1ca84",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T15:10:56.781075+00:00",
      "updated_at": "2026-07-27T15:10:56.781075+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "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"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1131,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 4105,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13734,
          "cost_amount": 0.1131075
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-bb161fbb-c0de-4a5e-b5c0-2eeeca9d8246",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-bb161fbb-c0de-4a5e-b5c0-2eeeca9d8246",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T09:01:44.537982+00:00",
      "updated_at": "2026-07-27T09:01:44.537982+00:00",
      "user_email": "cong.cao@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "sql"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0712,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 1325,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13686,
          "cost_amount": 0.0712275
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-affb1a04cb23390198c1bc086c373255",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-affb1a04cb23390198c1bc086c373255",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:52:46.364413+00:00",
      "updated_at": "2026-07-27T11:52:46.364413+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0674,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4721,
          "output_tokens": 6304,
          "reasoning_tokens": 0,
          "cache_read_tokens": 27909,
          "cache_write_tokens": 10260,
          "cost_amount": 0.30203865
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-677618bbfee7b0772104f85ef7de56bb",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-677618bbfee7b0772104f85ef7de56bb",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:59:11.450370+00:00",
      "updated_at": "2026-07-27T11:59:11.450370+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0646,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4721,
          "output_tokens": 5351,
          "reasoning_tokens": 0,
          "cache_read_tokens": 20513,
          "cache_write_tokens": 13367,
          "cost_amount": 0.2723544
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-2e96f4e7-3d28-4d77-84cd-dd4a510c4cf5",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-2e96f4e7-3d28-4d77-84cd-dd4a510c4cf5",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T07:36:06.486740+00:00",
      "updated_at": "2026-07-27T07:36:06.486740+00:00",
      "user_email": "cherubin.j@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": 0.0528,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 219,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13197,
          "cost_amount": 0.05280375
        },
        "message_categories": {
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-4e5258441f6177123e36b45edb804926",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-4e5258441f6177123e36b45edb804926",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:41:32.492992+00:00",
      "updated_at": "2026-07-27T11:41:32.492992+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0275,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1787,
          "output_tokens": 3934,
          "reasoning_tokens": 0,
          "cache_read_tokens": 29290,
          "cache_write_tokens": 1165,
          "cost_amount": 0.21910455
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    }
  ],
  "updated_existing_workspaces": [
    {
      "workspace_id": "ws-1784851288773-b08320fe0",
      "title": "TCID-12956 Mercari scaling CPU balance",
      "url": "https://investibook.com/workspace/ws-1784851288773-b08320fe0",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-24T00:01:28.773869+00:00",
      "updated_at": "2026-07-24T01:03:18.826655+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": "pd_tso_or_scheduling",
      "scenario_category_counts": {
        "pd_tso_or_scheduling": 1,
        "resource_control_or_capacity": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "cluster_topology_or_scaling": 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": 7,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler",
            "scheduling",
            "timestamp",
            "スケジューリング"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 5,
          "matched_terms": [
            "cpu",
            "p99",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hot region",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "cluster_topology_or_scaling",
          "score": 4,
          "matched_terms": [
            "scale",
            "scaling"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "i/o",
            "io",
            "raft"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "hot region",
          "i/o",
          "io",
          "leader",
          "operator",
          "p99",
          "pd",
          "peer",
          "raft",
          "region",
          "ru",
          "scale",
          "scaling",
          "scheduler",
          "scheduling"
        ],
        "message_count_used": 109,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 7.2272,
        "message_count": 48,
        "user_message_count": 24,
        "assistant_message_count": 23,
        "token_usage": {
          "interaction_records": 29,
          "input_tokens": 11947,
          "output_tokens": 6423,
          "reasoning_tokens": 0,
          "cache_read_tokens": 89387,
          "cache_write_tokens": 148,
          "cost_amount": 7.359346650000007
        },
        "message_categories": {
          "查询纠偏": 1,
          "产出物迭代": 8,
          "Ad hoc 查询": 8,
          "解释追问": 2,
          "流程控制/确认": 1,
          "背景补充": 2,
          "未归类": 2
        }
      }
    },
    {
      "workspace_id": "ws-1781598701127-da28e5bfa",
      "title": "tikv自动巡检",
      "url": "https://investibook.com/workspace/ws-1781598701127-da28e5bfa",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-16T08:31:41.127057+00:00",
      "updated_at": "2026-06-16T08:31:54.328108+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "cli",
      "scenario_group": "non_diagnosis",
      "scenario_category": "inspection_or_report_generation",
      "scenario_category_counts": {
        "inspection_or_report_generation": 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": 3,
          "matched_terms": [
            "tikv"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "指标",
            "每日"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "daily inspection",
          "inspection",
          "report",
          "巡检",
          "报告"
        ],
        "message_count_used": 53,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.8388,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 9,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 14754,
          "cost_amount": 1.83880875
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1784882729203-01a169a76",
      "title": "Cluster 10450079408690218979",
      "url": "https://investibook.com/workspace/ws-1784882729203-01a169a76",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-24T08:45:29.203828+00:00",
      "updated_at": "2026-07-24T08:45:29.203828+00:00",
      "user_email": "huyule@pingcap.com",
      "team_path": "Central Enabling Group / Solution Architects",
      "team": "Solution Architects",
      "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": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "provider",
            "region"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "digest",
          "query",
          "sql"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.8901,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 21029,
          "cache_write_tokens": 52,
          "cost_amount": 0.8900662499999996
        },
        "message_categories": {
          "查询纠偏": 1,
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1784685582182-72a30c30a",
      "title": "慢查询：慢在哪？怎么优化？",
      "url": "https://investibook.com/workspace/ws-1784685582182-72a30c30a",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-22T01:59:42.182213+00:00",
      "updated_at": "2026-07-22T02:01:40.138292+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": "gc_or_allocator_pressure",
          "score": 3,
          "matched_terms": [
            "gc",
            "go runtime",
            "runtime"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 3,
          "matched_terms": [
            "operator",
            "pd",
            "调度"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 2,
          "matched_terms": [
            "disk",
            "io"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "memory_or_oom_pressure",
          "score": 2,
          "matched_terms": [
            "memory",
            "oom"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "index",
          "scan",
          "sql",
          "优化器",
          "慢查询",
          "执行计划"
        ],
        "message_count_used": 18,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.348,
        "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": 4616,
          "cost_amount": 0.34797374999999997
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-5b0aca0e-274c-4e37-b864-99da7abc1e0a",
      "title": "Lark APID-29179",
      "url": "https://investibook.com/workspace/lark-ws-5b0aca0e-274c-4e37-b864-99da7abc1e0a",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-13T05:12:01.924339+00:00",
      "updated_at": "2026-07-13T05:12:01.924339+00:00",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "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_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "draft",
            "客户回复"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "io",
          "raft"
        ],
        "message_count_used": 13,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3265,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 65545,
          "cache_write_tokens": 0,
          "cost_amount": 0.32648849999999996
        },
        "message_categories": {
          "产出物迭代": 2
        }
      }
    },
    {
      "workspace_id": "ws-1784773069641-048332af5",
      "title": "tikv重启，kv 面板里的 server is busy",
      "url": "https://investibook.com/workspace/ws-1784773069641-048332af5",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-23T02:17:49.641664+00:00",
      "updated_at": "2026-07-23T02:20:27.123413+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": "component_failure_or_bug",
      "scenario_category_counts": {
        "component_failure_or_bug": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "resource_control_or_capacity": 1,
        "sql_plan_or_query": 1,
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 5,
          "matched_terms": [
            "bug",
            "panic",
            "重启"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "qps",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "scan",
            "索引"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "txn",
            "事务"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "bug",
          "cpu",
          "panic",
          "qps",
          "region",
          "ru",
          "scan",
          "tikv",
          "txn",
          "事务",
          "索引",
          "重启"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2844,
        "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": 9167,
          "cost_amount": 0.2844
        },
        "message_categories": {
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1783318142336-22c3ad604",
      "title": "TCID-12879 Mercari　TiKV CPU load balancing",
      "url": "https://investibook.com/workspace/ws-1783318142336-22c3ad604",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-06T06:09:02.336908+00:00",
      "updated_at": "2026-07-13T00:39:22.996588+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 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",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 4,
          "matched_terms": [
            "evict",
            "leader",
            "operator",
            "pd"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "io",
            "raft",
            "raftstore"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 2,
          "matched_terms": [
            "br",
            "snapshot"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "escalate",
            "回答"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "coprocess",
          "coprocessor",
          "hot region",
          "hotspot",
          "peer",
          "region",
          "tikv"
        ],
        "message_count_used": 60,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.258,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 733,
          "reasoning_tokens": 0,
          "cache_read_tokens": 19851,
          "cache_write_tokens": 0,
          "cost_amount": 0.25801274999999996
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1784851288773-b08320fe0",
      "title": "TCID-12956 Mercari scaling CPU balance",
      "url": "https://investibook.com/workspace/ws-1784851288773-b08320fe0",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-24T00:01:28.773869+00:00",
      "updated_at": "2026-07-24T01:03:18.826655+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "pd_tso_or_scheduling",
      "scenario_category_counts": {
        "pd_tso_or_scheduling": 1,
        "resource_control_or_capacity": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "cluster_topology_or_scaling": 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": 7,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler",
            "scheduling",
            "timestamp",
            "スケジューリング"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 5,
          "matched_terms": [
            "cpu",
            "p99",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hot region",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "cluster_topology_or_scaling",
          "score": 4,
          "matched_terms": [
            "scale",
            "scaling"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "i/o",
            "io",
            "raft"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "hot region",
          "i/o",
          "io",
          "leader",
          "operator",
          "p99",
          "pd",
          "peer",
          "raft",
          "region",
          "ru",
          "scale",
          "scaling",
          "scheduler",
          "scheduling"
        ],
        "message_count_used": 109,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1322,
        "message_count": 48,
        "user_message_count": 24,
        "assistant_message_count": 23,
        "token_usage": {
          "interaction_records": 29,
          "input_tokens": 11947,
          "output_tokens": 6423,
          "reasoning_tokens": 0,
          "cache_read_tokens": 89387,
          "cache_write_tokens": 148,
          "cost_amount": 7.359346650000007
        },
        "message_categories": {
          "查询纠偏": 1,
          "产出物迭代": 8,
          "Ad hoc 查询": 8,
          "解释追问": 2,
          "流程控制/确认": 1,
          "背景补充": 2,
          "未归类": 2
        }
      }
    },
    {
      "workspace_id": "ws-1785038609993-ac05e9ee6",
      "title": "tiup manifest 目录底下的root.json 文件过期，应该怎么解决",
      "url": "https://investibook.com/workspace/ws-1785038609993-ac05e9ee6",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-26T04:03:29.993390+00:00",
      "updated_at": "2026-07-26T04:04:14.807731+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": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "skill_or_workflow_setup",
          "score": 2,
          "matched_terms": [
            "安装",
            "重新安装"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "备份",
          "恢复"
        ],
        "message_count_used": 7,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0969,
        "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": 2906,
          "cost_amount": 0.09685499999999997
        },
        "message_categories": {
          "解释追问": 1
        }
      }
    }
  ],
  "all_changed_workspaces": [
    {
      "workspace_id": "ws-1784851288773-b08320fe0",
      "title": "TCID-12956 Mercari scaling CPU balance",
      "url": "https://investibook.com/workspace/ws-1784851288773-b08320fe0",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-24T00:01:28.773869+00:00",
      "updated_at": "2026-07-24T01:03:18.826655+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": "pd_tso_or_scheduling",
      "scenario_category_counts": {
        "pd_tso_or_scheduling": 1,
        "resource_control_or_capacity": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "cluster_topology_or_scaling": 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": 7,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler",
            "scheduling",
            "timestamp",
            "スケジューリング"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 5,
          "matched_terms": [
            "cpu",
            "p99",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hot region",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "cluster_topology_or_scaling",
          "score": 4,
          "matched_terms": [
            "scale",
            "scaling"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "i/o",
            "io",
            "raft"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "hot region",
          "i/o",
          "io",
          "leader",
          "operator",
          "p99",
          "pd",
          "peer",
          "raft",
          "region",
          "ru",
          "scale",
          "scaling",
          "scheduler",
          "scheduling"
        ],
        "message_count_used": 109,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 7.2272,
        "message_count": 48,
        "user_message_count": 24,
        "assistant_message_count": 23,
        "token_usage": {
          "interaction_records": 29,
          "input_tokens": 11947,
          "output_tokens": 6423,
          "reasoning_tokens": 0,
          "cache_read_tokens": 89387,
          "cache_write_tokens": 148,
          "cost_amount": 7.359346650000007
        },
        "message_categories": {
          "查询纠偏": 1,
          "产出物迭代": 8,
          "Ad hoc 查询": 8,
          "解释追问": 2,
          "流程控制/确认": 1,
          "背景补充": 2,
          "未归类": 2
        }
      }
    },
    {
      "workspace_id": "ws-1785143382073-4ef398f3e",
      "title": "https://tidb.atlassian.net/browse/O11Y-2624250",
      "url": "https://investibook.com/workspace/ws-1785143382073-4ef398f3e",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T09:09:42.073455+00:00",
      "updated_at": "2026-07-27T09:10:21.301627+00:00",
      "user_email": "tailingxiang@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Intelligent Query Processing Service / SQL Optimization & Execution",
      "team": "SQL Optimization & Execution",
      "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_evidence": {
        "matched_terms": [
          "br",
          "恢复"
        ],
        "message_count_used": 3,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 4.8989,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1015,
          "reasoning_tokens": 0,
          "cache_read_tokens": 143479,
          "cache_write_tokens": 724,
          "cost_amount": 4.898938500000002
        },
        "message_categories": {
          "Ad hoc 查询": 2,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785135120902-ca1ddb869",
      "title": "TCOC-5677",
      "url": "https://investibook.com/workspace/ws-1785135120902-ca1ddb869",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T06:52:00.902948+00:00",
      "updated_at": "2026-07-27T06:52:08.926942+00:00",
      "user_email": "chenqingjing@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "operator",
            "timestamp"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "backup",
          "br"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.7601,
        "message_count": 11,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 1,
          "output_tokens": 385,
          "reasoning_tokens": 0,
          "cache_read_tokens": 140706,
          "cache_write_tokens": 4423,
          "cost_amount": 2.7600867
        },
        "message_categories": {
          "诊断启动": 1,
          "解释追问": 1,
          "流程控制/确认": 3
        }
      }
    },
    {
      "workspace_id": "ws-1781598701127-da28e5bfa",
      "title": "tikv自动巡检",
      "url": "https://investibook.com/workspace/ws-1781598701127-da28e5bfa",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-06-16T08:31:41.127057+00:00",
      "updated_at": "2026-06-16T08:31:54.328108+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "cli",
      "scenario_group": "non_diagnosis",
      "scenario_category": "inspection_or_report_generation",
      "scenario_category_counts": {
        "inspection_or_report_generation": 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": 3,
          "matched_terms": [
            "tikv"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "指标",
            "每日"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "daily inspection",
          "inspection",
          "report",
          "巡检",
          "报告"
        ],
        "message_count_used": 53,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.8388,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 9,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 14754,
          "cost_amount": 1.83880875
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-38cf1ee1-b148-4367-8327-d4b0f68b20dc",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-38cf1ee1-b148-4367-8327-d4b0f68b20dc",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T09:29:37.560432+00:00",
      "updated_at": "2026-07-27T09:29:37.560432+00:00",
      "user_email": "jingyi.yao@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Starter",
      "team": "Starter",
      "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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7487,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 994,
          "reasoning_tokens": 0,
          "cache_read_tokens": 99045,
          "cache_write_tokens": 300,
          "cost_amount": 1.74865995
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785114978637-b1e691c03",
      "title": "INSERT INTO t_im_member",
      "url": "https://investibook.com/workspace/ws-1785114978637-b1e691c03",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T01:16:18.637856+00:00",
      "updated_at": "2026-07-27T01:27:35.876845+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": "transaction_or_lock_contention",
      "scenario_category_counts": {
        "transaction_or_lock_contention": 1,
        "sql_plan_or_query": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "storage_or_io_bottleneck": 1,
        "memory_or_oom_pressure": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 5,
          "matched_terms": [
            "deadlock",
            "lock",
            "txn",
            "冲突",
            "锁"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 4,
          "matched_terms": [
            "query",
            "scan",
            "sql",
            "索引"
          ]
        },
        {
          "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_group": "diagnosis",
          "scenario_category": "memory_or_oom_pressure",
          "score": 2,
          "matched_terms": [
            "memory",
            "oom"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "deadlock",
          "disk",
          "io",
          "lock",
          "memory",
          "oom",
          "query",
          "region",
          "rocksdb",
          "scan",
          "sql",
          "store:",
          "tikv",
          "txn",
          "冲突",
          "索引"
        ],
        "message_count_used": 14,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7067,
        "message_count": 28,
        "user_message_count": 14,
        "assistant_message_count": 14,
        "token_usage": {
          "interaction_records": 14,
          "input_tokens": 10,
          "output_tokens": 4770,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 55333,
          "cost_amount": 1.7066601000000001
        },
        "message_categories": {
          "查询纠偏": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 2,
          "解释追问": 2,
          "流程控制/确认": 6,
          "背景补充": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785121042660-c5ece5032",
      "title": "medibaのインポートエラー",
      "url": "https://investibook.com/workspace/ws-1785121042660-c5ece5032",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T02:57:22.660134+00:00",
      "updated_at": "2026-07-27T02:57:35.237580+00:00",
      "user_email": "yoshiaki.yamasaki@pingcap.com",
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "data_import_or_load",
      "scenario_category_counts": {
        "data_import_or_load": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "インポート"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.0253,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 1442,
          "reasoning_tokens": 0,
          "cache_read_tokens": 96919,
          "cache_write_tokens": 316,
          "cost_amount": 1.0253092499999998
        },
        "message_categories": {
          "查询纠偏": 1,
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785122330572-87f3b856d",
      "title": "mediba import precheck error",
      "url": "https://investibook.com/workspace/ws-1785122330572-87f3b856d",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T03:18:50.572201+00:00",
      "updated_at": "2026-07-27T03:19:00.534320+00:00",
      "user_email": "shigeyuki.fujishima@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "data_import_or_load",
      "scenario_category_counts": {
        "data_import_or_load": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "import"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9624,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 2239,
          "reasoning_tokens": 0,
          "cache_read_tokens": 100899,
          "cache_write_tokens": 1484,
          "cost_amount": 0.96240795
        },
        "message_categories": {
          "Ad hoc 查询": 2,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1784882729203-01a169a76",
      "title": "Cluster 10450079408690218979",
      "url": "https://investibook.com/workspace/ws-1784882729203-01a169a76",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-24T08:45:29.203828+00:00",
      "updated_at": "2026-07-24T08:45:29.203828+00:00",
      "user_email": "huyule@pingcap.com",
      "team_path": "Central Enabling Group / Solution Architects",
      "team": "Solution Architects",
      "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": "tikv_hotspot_or_coprocessor",
          "score": 2,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "provider",
            "region"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "digest",
          "query",
          "sql"
        ],
        "message_count_used": 10,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.8901,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 21029,
          "cache_write_tokens": 52,
          "cost_amount": 0.8900662499999996
        },
        "message_categories": {
          "查询纠偏": 1,
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-3418a5ca-a97e-41de-ae46-b5579f11c373",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-3418a5ca-a97e-41de-ae46-b5579f11c373",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T07:29:28.506703+00:00",
      "updated_at": "2026-07-27T07:29:28.506703+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "cpu",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "disk",
          "io"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.5778,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 4028,
          "reasoning_tokens": 0,
          "cache_read_tokens": 54495,
          "cache_write_tokens": 5958,
          "cost_amount": 0.5777704499999999
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785110878881-7f04a5b2a",
      "title": "TCID-12964",
      "url": "https://investibook.com/workspace/ws-1785110878881-7f04a5b2a",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T00:07:58.881802+00:00",
      "updated_at": "2026-07-27T00:08:07.638316+00:00",
      "user_email": "qiaoxinke@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "data_import_or_load",
      "scenario_category_counts": {
        "data_import_or_load": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "csv",
          "import",
          "ファイル"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4725,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 1926,
          "reasoning_tokens": 0,
          "cache_read_tokens": 43862,
          "cache_write_tokens": 3036,
          "cost_amount": 0.4724718
        },
        "message_categories": {
          "解释追问": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1784685582182-72a30c30a",
      "title": "慢查询：慢在哪？怎么优化？",
      "url": "https://investibook.com/workspace/ws-1784685582182-72a30c30a",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-22T01:59:42.182213+00:00",
      "updated_at": "2026-07-22T02:01:40.138292+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": "gc_or_allocator_pressure",
          "score": 3,
          "matched_terms": [
            "gc",
            "go runtime",
            "runtime"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 3,
          "matched_terms": [
            "operator",
            "pd",
            "调度"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 2,
          "matched_terms": [
            "disk",
            "io"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "memory_or_oom_pressure",
          "score": 2,
          "matched_terms": [
            "memory",
            "oom"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 2,
          "matched_terms": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "index",
          "scan",
          "sql",
          "优化器",
          "慢查询",
          "执行计划"
        ],
        "message_count_used": 18,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.348,
        "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": 4616,
          "cost_amount": 0.34797374999999997
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-5b0aca0e-274c-4e37-b864-99da7abc1e0a",
      "title": "Lark APID-29179",
      "url": "https://investibook.com/workspace/lark-ws-5b0aca0e-274c-4e37-b864-99da7abc1e0a",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-13T05:12:01.924339+00:00",
      "updated_at": "2026-07-13T05:12:01.924339+00:00",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "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_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "draft",
            "客户回复"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "io",
          "raft"
        ],
        "message_count_used": 13,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3265,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 65545,
          "cache_write_tokens": 0,
          "cost_amount": 0.32648849999999996
        },
        "message_categories": {
          "产出物迭代": 2
        }
      }
    },
    {
      "workspace_id": "ws-1785138801561-2a881a0d5",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1785138801561-2a881a0d5",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T07:53:21.561832+00:00",
      "updated_at": "2026-07-27T07:53:21.561832+00:00",
      "user_email": "debin.jia@pingcap.com",
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "team": "KV Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "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": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2993,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 2260,
          "reasoning_tokens": 0,
          "cache_read_tokens": 28703,
          "cache_write_tokens": 34323,
          "cost_amount": 0.299277
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1784773069641-048332af5",
      "title": "tikv重启，kv 面板里的 server is busy",
      "url": "https://investibook.com/workspace/ws-1784773069641-048332af5",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-23T02:17:49.641664+00:00",
      "updated_at": "2026-07-23T02:20:27.123413+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": "component_failure_or_bug",
      "scenario_category_counts": {
        "component_failure_or_bug": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "resource_control_or_capacity": 1,
        "sql_plan_or_query": 1,
        "transaction_or_lock_contention": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 5,
          "matched_terms": [
            "bug",
            "panic",
            "重启"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "qps",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "scan",
            "索引"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "txn",
            "事务"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "bug",
          "cpu",
          "panic",
          "qps",
          "region",
          "ru",
          "scan",
          "tikv",
          "txn",
          "事务",
          "索引",
          "重启"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2844,
        "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": 9167,
          "cost_amount": 0.2844
        },
        "message_categories": {
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1783318142336-22c3ad604",
      "title": "TCID-12879 Mercari　TiKV CPU load balancing",
      "url": "https://investibook.com/workspace/ws-1783318142336-22c3ad604",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-06T06:09:02.336908+00:00",
      "updated_at": "2026-07-13T00:39:22.996588+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 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",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 4,
          "matched_terms": [
            "evict",
            "leader",
            "operator",
            "pd"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "io",
            "raft",
            "raftstore"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 2,
          "matched_terms": [
            "br",
            "snapshot"
          ]
        },
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "ticket_summary_or_customer_response",
          "score": 2,
          "matched_terms": [
            "escalate",
            "回答"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "coprocess",
          "coprocessor",
          "hot region",
          "hotspot",
          "peer",
          "region",
          "tikv"
        ],
        "message_count_used": 60,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.258,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 733,
          "reasoning_tokens": 0,
          "cache_read_tokens": 19851,
          "cache_write_tokens": 0,
          "cost_amount": 0.25801274999999996
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-affb1a04cb23390198c1bc086c373255",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-affb1a04cb23390198c1bc086c373255",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:52:46.364413+00:00",
      "updated_at": "2026-07-27T11:52:46.364413+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "cli",
      "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": 0.2347,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4721,
          "output_tokens": 6304,
          "reasoning_tokens": 0,
          "cache_read_tokens": 27909,
          "cache_write_tokens": 10260,
          "cost_amount": 0.30203865
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-414e395e-bb6d-4f23-a396-715f4532851a",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-414e395e-bb6d-4f23-a396-715f4532851a",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T14:13:33.038871+00:00",
      "updated_at": "2026-07-27T14:13:33.038871+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "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",
          "sql"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2333,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 2735,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 21684,
          "cost_amount": 0.23325
        },
        "message_categories": {
          "查询纠偏": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-fcceef48-6035-40e1-ac3e-f10277dc6cbf",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-fcceef48-6035-40e1-ac3e-f10277dc6cbf",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T08:38:49.992294+00:00",
      "updated_at": "2026-07-27T08:38:49.992294+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1,
        "storage_or_io_bottleneck": 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": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "plan",
            "sql",
            "索引"
          ]
        },
        {
          "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": [
            "duration",
            "ru"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "disk",
          "duration",
          "io",
          "plan",
          "ru",
          "sql",
          "索引"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.2202,
        "message_count": 6,
        "user_message_count": 2,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 2109,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 25157,
          "cost_amount": 0.22022625
        },
        "message_categories": {
          "解释追问": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-677618bbfee7b0772104f85ef7de56bb",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-677618bbfee7b0772104f85ef7de56bb",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:59:11.450370+00:00",
      "updated_at": "2026-07-27T11:59:11.450370+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "cli",
      "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": 0.2078,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4721,
          "output_tokens": 5351,
          "reasoning_tokens": 0,
          "cache_read_tokens": 20513,
          "cache_write_tokens": 13367,
          "cost_amount": 0.2723544
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-4e5258441f6177123e36b45edb804926",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-4e5258441f6177123e36b45edb804926",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:41:32.492992+00:00",
      "updated_at": "2026-07-27T11:41:32.492992+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "cli",
      "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": 0.1916,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1787,
          "output_tokens": 3934,
          "reasoning_tokens": 0,
          "cache_read_tokens": 29290,
          "cache_write_tokens": 1165,
          "cost_amount": 0.21910455
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1784851288773-b08320fe0",
      "title": "TCID-12956 Mercari scaling CPU balance",
      "url": "https://investibook.com/workspace/ws-1784851288773-b08320fe0",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-24T00:01:28.773869+00:00",
      "updated_at": "2026-07-24T01:03:18.826655+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "pd_tso_or_scheduling",
      "scenario_category_counts": {
        "pd_tso_or_scheduling": 1,
        "resource_control_or_capacity": 1,
        "tikv_hotspot_or_coprocessor": 1,
        "cluster_topology_or_scaling": 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": 7,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler",
            "scheduling",
            "timestamp",
            "スケジューリング"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 5,
          "matched_terms": [
            "cpu",
            "p99",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hot region",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "cluster_topology_or_scaling",
          "score": 4,
          "matched_terms": [
            "scale",
            "scaling"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "i/o",
            "io",
            "raft"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "hot region",
          "i/o",
          "io",
          "leader",
          "operator",
          "p99",
          "pd",
          "peer",
          "raft",
          "region",
          "ru",
          "scale",
          "scaling",
          "scheduler",
          "scheduling"
        ],
        "message_count_used": 109,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1322,
        "message_count": 48,
        "user_message_count": 24,
        "assistant_message_count": 23,
        "token_usage": {
          "interaction_records": 29,
          "input_tokens": 11947,
          "output_tokens": 6423,
          "reasoning_tokens": 0,
          "cache_read_tokens": 89387,
          "cache_write_tokens": 148,
          "cost_amount": 7.359346650000007
        },
        "message_categories": {
          "查询纠偏": 1,
          "产出物迭代": 8,
          "Ad hoc 查询": 8,
          "解释追问": 2,
          "流程控制/确认": 1,
          "背景补充": 2,
          "未归类": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-38943f38-c774-42cf-8452-edef80b1ca84",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-38943f38-c774-42cf-8452-edef80b1ca84",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T15:10:56.781075+00:00",
      "updated_at": "2026-07-27T15:10:56.781075+00:00",
      "user_email": "shaoxiqian@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "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"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1131,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 4105,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13734,
          "cost_amount": 0.1131075
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785038609993-ac05e9ee6",
      "title": "tiup manifest 目录底下的root.json 文件过期，应该怎么解决",
      "url": "https://investibook.com/workspace/ws-1785038609993-ac05e9ee6",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-26T04:03:29.993390+00:00",
      "updated_at": "2026-07-26T04:04:14.807731+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": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "skill_or_workflow_setup",
          "score": 2,
          "matched_terms": [
            "安装",
            "重新安装"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "备份",
          "恢复"
        ],
        "message_count_used": 7,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0969,
        "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": 2906,
          "cost_amount": 0.09685499999999997
        },
        "message_categories": {
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-bb161fbb-c0de-4a5e-b5c0-2eeeca9d8246",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-bb161fbb-c0de-4a5e-b5c0-2eeeca9d8246",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T09:01:44.537982+00:00",
      "updated_at": "2026-07-27T09:01:44.537982+00:00",
      "user_email": "cong.cao@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "sql"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0712,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 1325,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13686,
          "cost_amount": 0.0712275
        },
        "message_categories": {
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-affb1a04cb23390198c1bc086c373255",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-affb1a04cb23390198c1bc086c373255",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:52:46.364413+00:00",
      "updated_at": "2026-07-27T11:52:46.364413+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0674,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4721,
          "output_tokens": 6304,
          "reasoning_tokens": 0,
          "cache_read_tokens": 27909,
          "cache_write_tokens": 10260,
          "cost_amount": 0.30203865
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-677618bbfee7b0772104f85ef7de56bb",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-677618bbfee7b0772104f85ef7de56bb",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:59:11.450370+00:00",
      "updated_at": "2026-07-27T11:59:11.450370+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0646,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 4721,
          "output_tokens": 5351,
          "reasoning_tokens": 0,
          "cache_read_tokens": 20513,
          "cache_write_tokens": 13367,
          "cost_amount": 0.2723544
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-2e96f4e7-3d28-4d77-84cd-dd4a510c4cf5",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-2e96f4e7-3d28-4d77-84cd-dd4a510c4cf5",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T07:36:06.486740+00:00",
      "updated_at": "2026-07-27T07:36:06.486740+00:00",
      "user_email": "cherubin.j@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": 0.0528,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 219,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13197,
          "cost_amount": 0.05280375
        },
        "message_categories": {
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-4e5258441f6177123e36b45edb804926",
      "title": "Performance diagnosis",
      "url": "https://investibook.com/workspace/ws-4e5258441f6177123e36b45edb804926",
      "workspace_lifecycle": "new",
      "created_at": "2026-07-27T11:41:32.492992+00:00",
      "updated_at": "2026-07-27T11:41:32.492992+00:00",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "channel": "image-send",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0275,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1787,
          "output_tokens": 3934,
          "reasoning_tokens": 0,
          "cache_read_tokens": 29290,
          "cache_write_tokens": 1165,
          "cost_amount": 0.21910455
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    }
  ]
}
