{
  "date": "2026-08-12",
  "timezone": "Asia/Shanghai",
  "window_start": "2026-08-12T00:00:00+08:00",
  "window_end": "2026-08-13T00:00:00+08:00",
  "granularity": "daily_workspace_changes",
  "summary": {
    "new_workspace_count": 22,
    "updated_existing_workspace_count": 14,
    "changed_workspace_count": 36
  },
  "new_workspaces": [
    {
      "workspace_id": "ws-1786495116650-61ee530e5",
      "title": "https://tidb.atlassian.net/browse/TCID-13019とhttps",
      "url": "https://investibook.com/workspace/ws-1786495116650-61ee530e5",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T00:38:36.650853+00:00",
      "updated_at": "2026-08-12T00:39:22.957125+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1,
        "resource_control_or_capacity": 1,
        "storage_or_io_bottleneck": 1,
        "pd_tso_or_scheduling": 1,
        "component_failure_or_bug": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 4,
          "matched_terms": [
            "br",
            "恢复"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 4,
          "matched_terms": [
            "capacity",
            "cpu",
            "ru",
            "容量"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 2,
          "matched_terms": [
            "io",
            "存储"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "leader",
            "pd"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 2,
          "matched_terms": [
            "bug",
            "异常"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "br",
          "bug",
          "capacity",
          "cpu",
          "io",
          "leader",
          "pd",
          "ru",
          "存储",
          "容量",
          "异常",
          "恢复"
        ],
        "message_count_used": 29,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 7.0091,
        "message_count": 56,
        "user_message_count": 28,
        "assistant_message_count": 28,
        "token_usage": {
          "interaction_records": 28,
          "input_tokens": 10,
          "output_tokens": 897,
          "reasoning_tokens": 0,
          "cache_read_tokens": 162749,
          "cache_write_tokens": 499,
          "cost_amount": 7.009135049999998
        },
        "message_categories": {
          "查询纠偏": 3,
          "产出物迭代": 13,
          "Ad hoc 查询": 8,
          "诊断启动": 1,
          "解释追问": 1,
          "背景补充": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786506454859-ff4d70397",
      "title": "O11Y-2635922",
      "url": "https://investibook.com/workspace/ws-1786506454859-ff4d70397",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T03:47:34.859495+00:00",
      "updated_at": "2026-08-12T03:47:46.093455+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 2,
          "matched_terms": [
            "br",
            "snapshot"
          ]
        },
        {
          "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": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 5.9359,
        "message_count": 9,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 588,
          "reasoning_tokens": 0,
          "cache_read_tokens": 166314,
          "cache_write_tokens": 8906,
          "cost_amount": 5.93592855
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "流程控制/确认": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786519263205-88f3594ba",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786519263205-88f3594ba",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:21:03.205664+00:00",
      "updated_at": "2026-08-12T07:21:03.205664+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "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": [
          "优化器",
          "索引"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.7195,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 1,
          "output_tokens": 2803,
          "reasoning_tokens": 0,
          "cache_read_tokens": 148080,
          "cache_write_tokens": 13438,
          "cost_amount": 2.7194746500000004
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 2,
          "解释追问": 1,
          "方法论/能力咨询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-340dd954-55a9-47e4-adc2-bceb8d844648",
      "title": "Lark O11Y-2636668",
      "url": "https://investibook.com/workspace/lark-ws-340dd954-55a9-47e4-adc2-bceb8d844648",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T14:38:21.501990+00:00",
      "updated_at": "2026-08-12T14:38:21.501990+00:00",
      "user_email": "wangkang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.3232,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 408164,
          "output_tokens": 11296,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 2.3232200000000005
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786520155842-3b19b83ca",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786520155842-3b19b83ca",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:35:55.842554+00:00",
      "updated_at": "2026-08-12T07:35:55.842554+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "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": [
          "索引"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.0938,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1461,
          "reasoning_tokens": 0,
          "cache_read_tokens": 127882,
          "cache_write_tokens": 15881,
          "cost_amount": 2.0938129500000002
        },
        "message_categories": {
          "诊断纠偏": 1,
          "诊断启动": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-2cdfc3ce-3f2d-4c13-a985-e88481c01c00",
      "title": "Lark O11Y-2636416",
      "url": "https://investibook.com/workspace/lark-ws-2cdfc3ce-3f2d-4c13-a985-e88481c01c00",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T10:21:05.203402+00:00",
      "updated_at": "2026-08-12T10:21:05.203402+00:00",
      "user_email": "wangkang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7272,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 315391,
          "output_tokens": 6011,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 1.72723
        },
        "message_categories": {
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786526451498-a9199fb93",
      "title": "629433936572841984 缩容评估",
      "url": "https://investibook.com/workspace/ws-1786526451498-a9199fb93",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T09:20:51.498233+00:00",
      "updated_at": "2026-08-12T09:21:26.978777+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_evidence": {
        "matched_terms": [
          "tikv"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.5943,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1,
          "output_tokens": 2100,
          "reasoning_tokens": 0,
          "cache_read_tokens": 74711,
          "cache_write_tokens": 3723,
          "cost_amount": 1.59426345
        },
        "message_categories": {
          "Ad hoc 查询": 2,
          "诊断启动": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786499004025-e5e5a2be2",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786499004025-e5e5a2be2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T01:43:24.025042+00:00",
      "updated_at": "2026-08-12T01:43:24.025042+00:00",
      "user_email": "qizheng@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "coprocess",
          "coprocessor"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.0023,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 864,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 65189,
          "cost_amount": 1.0023187500000001
        },
        "message_categories": {
          "诊断纠偏": 1,
          "诊断启动": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-a5194874-9506-4bf9-ade8-e0c478e6b026",
      "title": "Lark O11Y-2636391",
      "url": "https://investibook.com/workspace/lark-ws-a5194874-9506-4bf9-ade8-e0c478e6b026",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:00:12.039401+00:00",
      "updated_at": "2026-08-12T07:00:12.039401+00:00",
      "user_email": "tongzhigao@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Intelligent Query Processing Service / SQL Optimization & Execution",
      "team": "SQL Optimization & Execution",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9507,
        "message_count": 9,
        "user_message_count": 3,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 577,
          "reasoning_tokens": 0,
          "cache_read_tokens": 83370,
          "cache_write_tokens": 490,
          "cost_amount": 0.9506865
        },
        "message_categories": {
          "Ad hoc 查询": 2,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786523168768-6f2f50f7b",
      "title": "https://tidb.atlassian.net/browse/O11Y-2636467",
      "url": "https://investibook.com/workspace/ws-1786523168768-6f2f50f7b",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T08:26:08.768721+00:00",
      "updated_at": "2026-08-12T08:26:12.570370+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": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.8646,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1531,
          "reasoning_tokens": 0,
          "cache_read_tokens": 104953,
          "cache_write_tokens": 411,
          "cost_amount": 0.8645934
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786505422376-5bf60b0e0",
      "title": "https://tidb.atlassian.net/browse/TCID-13031",
      "url": "https://investibook.com/workspace/ws-1786505422376-5bf60b0e0",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T03:30:22.376238+00:00",
      "updated_at": "2026-08-12T03:31:37.458673+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1,
        "resource_control_or_capacity": 1,
        "pd_tso_or_scheduling": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 4,
          "matched_terms": [
            "br",
            "恢复"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "capacity",
            "cpu",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "leader",
            "pd"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "br",
          "capacity",
          "cpu",
          "leader",
          "pd",
          "ru",
          "恢复"
        ],
        "message_count_used": 7,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7889,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1,
          "output_tokens": 1033,
          "reasoning_tokens": 0,
          "cache_read_tokens": 84104,
          "cache_write_tokens": 19018,
          "cost_amount": 0.7889139000000001
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786528246140-ccd48b0d0",
      "title": "Mercari TCID-13028",
      "url": "https://investibook.com/workspace/ws-1786528246140-ccd48b0d0",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T09:50:46.140511+00:00",
      "updated_at": "2026-08-17T09:31:12.479542+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,
        "pd_tso_or_scheduling": 1,
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hotspot",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 4,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "ru",
            "容量"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "hotspot",
          "leader",
          "operator",
          "pd",
          "peer",
          "region",
          "ru",
          "scheduler",
          "tikv",
          "容量"
        ],
        "message_count_used": 90,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6178,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 17,
          "input_tokens": 14221,
          "output_tokens": 9214,
          "reasoning_tokens": 0,
          "cache_read_tokens": 43425,
          "cache_write_tokens": 3842,
          "cost_amount": 0.7654615499999998
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 3,
          "解释追问": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-b421e7ce-7489-4b61-86f4-f7babdf324df",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-b421e7ce-7489-4b61-86f4-f7babdf324df",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T09:01:45.656839+00:00",
      "updated_at": "2026-08-12T09:01:45.656839+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": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "同步"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4747,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 390,
          "reasoning_tokens": 0,
          "cache_read_tokens": 41704,
          "cache_write_tokens": 825,
          "cost_amount": 0.4747243500000001
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786498738809-20a59f11a",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786498738809-20a59f11a",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T01:38:58.809707+00:00",
      "updated_at": "2026-08-12T01:38:58.809707+00:00",
      "user_email": "qizheng@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "coprocess",
          "coprocessor"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4155,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 888,
          "reasoning_tokens": 0,
          "cache_read_tokens": 31697,
          "cache_write_tokens": 1316,
          "cost_amount": 0.4154827499999999
        },
        "message_categories": {
          "诊断启动": 2
        }
      }
    },
    {
      "workspace_id": "ws-1786514037960-0a691e9a3",
      "title": "Softbank アラートのクエリ",
      "url": "https://investibook.com/workspace/ws-1786514037960-0a691e9a3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T05:53:57.960737+00:00",
      "updated_at": "2026-08-12T05:54:18.904609+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": "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": [
          "index",
          "sql"
        ],
        "message_count_used": 7,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3648,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 2344,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 37318,
          "cost_amount": 0.36483374999999996
        },
        "message_categories": {
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "ws-1786528246140-ccd48b0d0",
      "title": "Mercari TCID-13028",
      "url": "https://investibook.com/workspace/ws-1786528246140-ccd48b0d0",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T09:50:46.140511+00:00",
      "updated_at": "2026-08-17T09:31:12.479542+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1,
        "pd_tso_or_scheduling": 1,
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hotspot",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 4,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "ru",
            "容量"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "hotspot",
          "leader",
          "operator",
          "pd",
          "peer",
          "region",
          "ru",
          "scheduler",
          "tikv",
          "容量"
        ],
        "message_count_used": 90,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1477,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 17,
          "input_tokens": 14221,
          "output_tokens": 9214,
          "reasoning_tokens": 0,
          "cache_read_tokens": 43425,
          "cache_write_tokens": 3842,
          "cost_amount": 0.7654615499999998
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 3,
          "解释追问": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-b25f5d2e-fc42-4a70-9f86-dd3bc831d12f",
      "title": "Lark O11Y-2636185",
      "url": "https://investibook.com/workspace/lark-ws-b25f5d2e-fc42-4a70-9f86-dd3bc831d12f",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T01:04:44.653389+00:00",
      "updated_at": "2026-08-12T01:04:44.653389+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": "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": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "io",
          "iops"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1239,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1005,
          "reasoning_tokens": 0,
          "cache_read_tokens": 18163,
          "cache_write_tokens": 1440,
          "cost_amount": 0.12394155
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786497979809-428781c59",
      "title": "Cluster 10766841556523235152",
      "url": "https://investibook.com/workspace/ws-1786497979809-428781c59",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T01:26:19.809803+00:00",
      "updated_at": "2026-08-12T01:26:26.817148+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "tikv"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.11,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 1705,
          "reasoning_tokens": 0,
          "cache_read_tokens": 12899,
          "cache_write_tokens": 1781,
          "cost_amount": 0.10997969999999999
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-0c82ee02-60a3-44be-9b7b-13b9d15c8e44",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-0c82ee02-60a3-44be-9b7b-13b9d15c8e44",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T08:48:18.651413+00:00",
      "updated_at": "2026-08-12T08:48:18.651413+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "disk",
          "rocksdb"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1058,
        "message_count": 12,
        "user_message_count": 4,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10,
          "output_tokens": 670,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14764,
          "cache_write_tokens": 804,
          "cost_amount": 0.105831
        },
        "message_categories": {
          "Ad hoc 查询": 3,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-ae8d13d8-3099-4295-8037-115a65354091",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-ae8d13d8-3099-4295-8037-115a65354091",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T03:56:17.167501+00:00",
      "updated_at": "2026-08-12T03:56:17.167501+00:00",
      "user_email": "peiliang.liu@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "unknown",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "scenario_category_counts": {
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "指标",
            "统计"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "duration",
          "p99",
          "qps",
          "ru"
        ],
        "message_count_used": 3,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {},
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786519016284-3356304ed",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786519016284-3356304ed",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:16:56.284519+00:00",
      "updated_at": "2026-08-12T07:16:56.284519+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "unknown",
      "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": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {},
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786519057708-4f5abafae",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786519057708-4f5abafae",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:17:37.708040+00:00",
      "updated_at": "2026-08-12T07:17:37.708040+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "unknown",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "coprocess",
            "coprocessor",
            "tikv",
            "热点"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "digest",
          "plan",
          "query",
          "slow query",
          "sql",
          "topsql",
          "索引"
        ],
        "message_count_used": 1,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {},
        "message_categories": {
          "诊断启动": 1
        }
      }
    }
  ],
  "updated_existing_workspaces": [
    {
      "workspace_id": "ws-1785749352458-23f89cc79",
      "title": "Read and understand this critical TiKV bug report",
      "url": "https://investibook.com/workspace/ws-1785749352458-23f89cc79",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-03T09:29:12.458589+00:00",
      "updated_at": "2026-08-03T09:43:29.149055+00:00",
      "user_email": "shentaining@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,
        "component_failure_or_bug": 1,
        "storage_or_io_bottleneck": 1,
        "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": 4,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 4,
          "matched_terms": [
            "bug",
            "restart"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "io",
            "raft",
            "rocksdb"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "plan",
            "query"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "bug",
          "io",
          "plan",
          "query",
          "raft",
          "region",
          "restart",
          "rocksdb",
          "tikv"
        ],
        "message_count_used": 13,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 18.3927,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 3587947,
          "output_tokens": 18118,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 18.392685
        },
        "message_categories": {
          "产出物迭代": 2,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-5d9310e6-41a4-4673-9418-074961e262c3",
      "title": "Lark O11Y-2635882",
      "url": "https://investibook.com/workspace/lark-ws-5d9310e6-41a4-4673-9418-074961e262c3",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-11T13:57:16.605836+00:00",
      "updated_at": "2026-08-11T13:57:16.605836+00:00",
      "user_email": "wangkang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "component_failure_or_bug",
      "scenario_category_counts": {
        "component_failure_or_bug": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "重启"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 3.9762,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 767095,
          "output_tokens": 5628,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 3.9761750000000005
        },
        "message_categories": {
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786074052614-249dd95e6",
      "title": "TCID-13014 Mico TiKV CPU使用率上昇に伴うレイテンシ急増の調査",
      "url": "https://investibook.com/workspace/ws-1786074052614-249dd95e6",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-07T03:40:52.614910+00:00",
      "updated_at": "2026-08-18T00:27:50.237498+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,
        "resource_control_or_capacity": 1,
        "sql_plan_or_query": 1,
        "ddl_or_schema_change": 1,
        "pd_tso_or_scheduling": 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": 5,
          "matched_terms": [
            "hotspot",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 5,
          "matched_terms": [
            "cpu",
            "qps",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 4,
          "matched_terms": [
            "index",
            "plan",
            "query",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "ddl_or_schema_change",
          "score": 2,
          "matched_terms": [
            "alter table",
            "ddl"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "leader",
            "pd"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "alter table",
          "cpu",
          "ddl",
          "hotspot",
          "index",
          "leader",
          "pd",
          "plan",
          "qps",
          "query",
          "region",
          "ru",
          "sql",
          "tikv"
        ],
        "message_count_used": 75,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.97,
        "message_count": 26,
        "user_message_count": 13,
        "assistant_message_count": 13,
        "token_usage": {
          "interaction_records": 13,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 79740,
          "cache_write_tokens": 0,
          "cost_amount": 1.9699676999999998
        },
        "message_categories": {
          "产出物迭代": 3,
          "Ad hoc 查询": 5,
          "诊断启动": 3,
          "解释追问": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785747260569-eaf3bc881",
      "title": "Mercari TCID-12956, TCID-12912、TCID-12992とTCOC-5664",
      "url": "https://investibook.com/workspace/ws-1785747260569-eaf3bc881",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-03T08:54:20.569265+00:00",
      "updated_at": "2026-08-06T08:26:18.627340+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,
        "tikv_hotspot_or_coprocessor": 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": "pd_tso_or_scheduling",
          "score": 5,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler",
            "スケジューリング"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hot region",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "compaction",
            "io",
            "raft"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "ru",
            "容量"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "cpu",
          "hot region",
          "io",
          "leader",
          "operator",
          "pd",
          "peer",
          "raft",
          "region",
          "ru",
          "scheduler",
          "tikv",
          "スケジューリング",
          "容量"
        ],
        "message_count_used": 78,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7519,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 7,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 1.7519301000000027
        },
        "message_categories": {
          "产出物迭代": 3,
          "Ad hoc 查询": 4,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-c1e56a7b-98ae-490c-adab-fa14b3c1826a",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-c1e56a7b-98ae-490c-adab-fa14b3c1826a",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-11T13:39:19.024764+00:00",
      "updated_at": "2026-08-11T13:39:19.024764+00:00",
      "user_email": "likun@pingcap.com",
      "team_path": "NA & EMEA Business Group / EMEA / Presales",
      "team": "Presales",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io",
          "iops",
          "磁盘"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.6035,
        "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": 78802,
          "cost_amount": 1.6034630999999997
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786518688429-4ab0880bc",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786518688429-4ab0880bc",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "shigeyuki.fujishima@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.3389,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1886,
          "reasoning_tokens": 0,
          "cache_read_tokens": 88190,
          "cache_write_tokens": 4623,
          "cost_amount": 1.3389313500000002
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1786323267878-a7d68d524",
      "title": "無題のワークスペース",
      "url": "https://investibook.com/workspace/ws-1786323267878-a7d68d524",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-10T00:54:27.878811+00:00",
      "updated_at": "2026-08-10T01:04:17.530015+00:00",
      "user_email": "yahonda@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,
        "storage_or_io_bottleneck": 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": "tikv_hotspot_or_coprocessor",
          "score": 6,
          "matched_terms": [
            "coprocess",
            "coprocessor",
            "readpool",
            "region",
            "tikv",
            "unified read pool"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 5,
          "matched_terms": [
            "compaction",
            "io",
            "raft",
            "raftstore",
            "rocksdb"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 5,
          "matched_terms": [
            "cpu",
            "duration",
            "qps",
            "quota",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "query",
            "scan",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "lock",
            "txn"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "coprocess",
          "coprocessor",
          "cpu",
          "duration",
          "io",
          "lock",
          "qps",
          "query",
          "quota",
          "raft",
          "raftstore",
          "readpool",
          "region",
          "rocksdb",
          "ru"
        ],
        "message_count_used": 45,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6211,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 6,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 20325,
          "cache_write_tokens": 0,
          "cost_amount": 0.6211068000000006
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 1,
          "背景补充": 1,
          "未归类": 2
        }
      }
    },
    {
      "workspace_id": "ws-1786461785007-c3f9889bb",
      "title": "去 jira的 o11ydev project 开一个 test ticket",
      "url": "https://investibook.com/workspace/ws-1786461785007-c3f9889bb",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-11T15:23:05.007580+00:00",
      "updated_at": "2026-08-11T15:23:34.297016+00:00",
      "user_email": "wangkang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "web",
      "scenario_group": "non_diagnosis",
      "scenario_category": "product_usage_or_admin",
      "scenario_category_counts": {
        "product_usage_or_admin": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "api key"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3444,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 63150,
          "output_tokens": 1147,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 0.3444250000000001
        },
        "message_categories": {
          "解释追问": 3,
          "流程控制/确认": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1782974104245-9bb7ec7e7",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1782974104245-9bb7ec7e7",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-02T06:35:04.245909+00:00",
      "updated_at": "2026-07-02T06:35:04.245909+00:00",
      "user_email": "xuhuaiyu@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "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": [
            "tikv",
            "热点"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "slow query",
          "索引"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3377,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 1029,
          "reasoning_tokens": 0,
          "cache_read_tokens": 21783,
          "cache_write_tokens": 875,
          "cost_amount": 0.33773654999999997
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786547325805-d7987a67a",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786547325805-d7987a67a",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1784,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 739,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 16142,
          "cost_amount": 0.17842005
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1786475092522-285a92034",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786475092522-285a92034",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1374,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 837,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 33271,
          "cost_amount": 0.13735125
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1786366213337-f6b75f2e5",
      "title": "Hello,",
      "url": "https://investibook.com/workspace/ws-1786366213337-f6b75f2e5",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-10T12:50:13.337585+00:00",
      "updated_at": "2026-08-10T12:50:42.977874+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": "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": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1027,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 57,
          "reasoning_tokens": 0,
          "cache_read_tokens": 15781,
          "cache_write_tokens": 0,
          "cost_amount": 0.1026873
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786471401821-64b1820b1",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786471401821-64b1820b1",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0926,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 917,
          "output_tokens": 3371,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13944,
          "cost_amount": 0.10560599999999999
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1786471401821-64b1820b1",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786471401821-64b1820b1",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "",
      "team_path": "",
      "team": "",
      "channel": "image-send",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.013,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 917,
          "output_tokens": 3371,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13944,
          "cost_amount": 0.10560599999999999
        },
        "message_categories": {}
      }
    }
  ],
  "all_changed_workspaces": [
    {
      "workspace_id": "ws-1785749352458-23f89cc79",
      "title": "Read and understand this critical TiKV bug report",
      "url": "https://investibook.com/workspace/ws-1785749352458-23f89cc79",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-03T09:29:12.458589+00:00",
      "updated_at": "2026-08-03T09:43:29.149055+00:00",
      "user_email": "shentaining@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,
        "component_failure_or_bug": 1,
        "storage_or_io_bottleneck": 1,
        "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": 4,
          "matched_terms": [
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 4,
          "matched_terms": [
            "bug",
            "restart"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "io",
            "raft",
            "rocksdb"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 2,
          "matched_terms": [
            "plan",
            "query"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "bug",
          "io",
          "plan",
          "query",
          "raft",
          "region",
          "restart",
          "rocksdb",
          "tikv"
        ],
        "message_count_used": 13,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 18.3927,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 3587947,
          "output_tokens": 18118,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 18.392685
        },
        "message_categories": {
          "产出物迭代": 2,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786495116650-61ee530e5",
      "title": "https://tidb.atlassian.net/browse/TCID-13019とhttps",
      "url": "https://investibook.com/workspace/ws-1786495116650-61ee530e5",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T00:38:36.650853+00:00",
      "updated_at": "2026-08-12T00:39:22.957125+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1,
        "resource_control_or_capacity": 1,
        "storage_or_io_bottleneck": 1,
        "pd_tso_or_scheduling": 1,
        "component_failure_or_bug": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 4,
          "matched_terms": [
            "br",
            "恢复"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 4,
          "matched_terms": [
            "capacity",
            "cpu",
            "ru",
            "容量"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 2,
          "matched_terms": [
            "io",
            "存储"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "leader",
            "pd"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "component_failure_or_bug",
          "score": 2,
          "matched_terms": [
            "bug",
            "异常"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "br",
          "bug",
          "capacity",
          "cpu",
          "io",
          "leader",
          "pd",
          "ru",
          "存储",
          "容量",
          "异常",
          "恢复"
        ],
        "message_count_used": 29,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 7.0091,
        "message_count": 56,
        "user_message_count": 28,
        "assistant_message_count": 28,
        "token_usage": {
          "interaction_records": 28,
          "input_tokens": 10,
          "output_tokens": 897,
          "reasoning_tokens": 0,
          "cache_read_tokens": 162749,
          "cache_write_tokens": 499,
          "cost_amount": 7.009135049999998
        },
        "message_categories": {
          "查询纠偏": 3,
          "产出物迭代": 13,
          "Ad hoc 查询": 8,
          "诊断启动": 1,
          "解释追问": 1,
          "背景补充": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786506454859-ff4d70397",
      "title": "O11Y-2635922",
      "url": "https://investibook.com/workspace/ws-1786506454859-ff4d70397",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T03:47:34.859495+00:00",
      "updated_at": "2026-08-12T03:47:46.093455+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 2,
          "matched_terms": [
            "br",
            "snapshot"
          ]
        },
        {
          "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": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 5.9359,
        "message_count": 9,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 588,
          "reasoning_tokens": 0,
          "cache_read_tokens": 166314,
          "cache_write_tokens": 8906,
          "cost_amount": 5.93592855
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "流程控制/确认": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-5d9310e6-41a4-4673-9418-074961e262c3",
      "title": "Lark O11Y-2635882",
      "url": "https://investibook.com/workspace/lark-ws-5d9310e6-41a4-4673-9418-074961e262c3",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-11T13:57:16.605836+00:00",
      "updated_at": "2026-08-11T13:57:16.605836+00:00",
      "user_email": "wangkang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "component_failure_or_bug",
      "scenario_category_counts": {
        "component_failure_or_bug": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "重启"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 3.9762,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 767095,
          "output_tokens": 5628,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 3.9761750000000005
        },
        "message_categories": {
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786519263205-88f3594ba",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786519263205-88f3594ba",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:21:03.205664+00:00",
      "updated_at": "2026-08-12T07:21:03.205664+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "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": [
          "优化器",
          "索引"
        ],
        "message_count_used": 5,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.7195,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 1,
          "output_tokens": 2803,
          "reasoning_tokens": 0,
          "cache_read_tokens": 148080,
          "cache_write_tokens": 13438,
          "cost_amount": 2.7194746500000004
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "诊断启动": 2,
          "解释追问": 1,
          "方法论/能力咨询": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-340dd954-55a9-47e4-adc2-bceb8d844648",
      "title": "Lark O11Y-2636668",
      "url": "https://investibook.com/workspace/lark-ws-340dd954-55a9-47e4-adc2-bceb8d844648",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T14:38:21.501990+00:00",
      "updated_at": "2026-08-12T14:38:21.501990+00:00",
      "user_email": "wangkang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.3232,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 408164,
          "output_tokens": 11296,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 2.3232200000000005
        },
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786520155842-3b19b83ca",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786520155842-3b19b83ca",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:35:55.842554+00:00",
      "updated_at": "2026-08-12T07:35:55.842554+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "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": [
          "索引"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 2.0938,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1461,
          "reasoning_tokens": 0,
          "cache_read_tokens": 127882,
          "cache_write_tokens": 15881,
          "cost_amount": 2.0938129500000002
        },
        "message_categories": {
          "诊断纠偏": 1,
          "诊断启动": 2
        }
      }
    },
    {
      "workspace_id": "ws-1786074052614-249dd95e6",
      "title": "TCID-13014 Mico TiKV CPU使用率上昇に伴うレイテンシ急増の調査",
      "url": "https://investibook.com/workspace/ws-1786074052614-249dd95e6",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-07T03:40:52.614910+00:00",
      "updated_at": "2026-08-18T00:27:50.237498+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,
        "resource_control_or_capacity": 1,
        "sql_plan_or_query": 1,
        "ddl_or_schema_change": 1,
        "pd_tso_or_scheduling": 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": 5,
          "matched_terms": [
            "hotspot",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 5,
          "matched_terms": [
            "cpu",
            "qps",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 4,
          "matched_terms": [
            "index",
            "plan",
            "query",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "ddl_or_schema_change",
          "score": 2,
          "matched_terms": [
            "alter table",
            "ddl"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "leader",
            "pd"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "alter table",
          "cpu",
          "ddl",
          "hotspot",
          "index",
          "leader",
          "pd",
          "plan",
          "qps",
          "query",
          "region",
          "ru",
          "sql",
          "tikv"
        ],
        "message_count_used": 75,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.97,
        "message_count": 26,
        "user_message_count": 13,
        "assistant_message_count": 13,
        "token_usage": {
          "interaction_records": 13,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 79740,
          "cache_write_tokens": 0,
          "cost_amount": 1.9699676999999998
        },
        "message_categories": {
          "产出物迭代": 3,
          "Ad hoc 查询": 5,
          "诊断启动": 3,
          "解释追问": 1,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1785747260569-eaf3bc881",
      "title": "Mercari TCID-12956, TCID-12912、TCID-12992とTCOC-5664",
      "url": "https://investibook.com/workspace/ws-1785747260569-eaf3bc881",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-03T08:54:20.569265+00:00",
      "updated_at": "2026-08-06T08:26:18.627340+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,
        "tikv_hotspot_or_coprocessor": 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": "pd_tso_or_scheduling",
          "score": 5,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler",
            "スケジューリング"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hot region",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 3,
          "matched_terms": [
            "compaction",
            "io",
            "raft"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "ru",
            "容量"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "cpu",
          "hot region",
          "io",
          "leader",
          "operator",
          "pd",
          "peer",
          "raft",
          "region",
          "ru",
          "scheduler",
          "tikv",
          "スケジューリング",
          "容量"
        ],
        "message_count_used": 78,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7519,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 7,
        "token_usage": {
          "interaction_records": 7,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 1.7519301000000027
        },
        "message_categories": {
          "产出物迭代": 3,
          "Ad hoc 查询": 4,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-2cdfc3ce-3f2d-4c13-a985-e88481c01c00",
      "title": "Lark O11Y-2636416",
      "url": "https://investibook.com/workspace/lark-ws-2cdfc3ce-3f2d-4c13-a985-e88481c01c00",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T10:21:05.203402+00:00",
      "updated_at": "2026-08-12T10:21:05.203402+00:00",
      "user_email": "wangkang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.7272,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 315391,
          "output_tokens": 6011,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 1.72723
        },
        "message_categories": {
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-c1e56a7b-98ae-490c-adab-fa14b3c1826a",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-c1e56a7b-98ae-490c-adab-fa14b3c1826a",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-11T13:39:19.024764+00:00",
      "updated_at": "2026-08-11T13:39:19.024764+00:00",
      "user_email": "likun@pingcap.com",
      "team_path": "NA & EMEA Business Group / EMEA / Presales",
      "team": "Presales",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "io",
          "iops",
          "磁盘"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.6035,
        "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": 78802,
          "cost_amount": 1.6034630999999997
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786526451498-a9199fb93",
      "title": "629433936572841984 缩容评估",
      "url": "https://investibook.com/workspace/ws-1786526451498-a9199fb93",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T09:20:51.498233+00:00",
      "updated_at": "2026-08-12T09:21:26.978777+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_evidence": {
        "matched_terms": [
          "tikv"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.5943,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1,
          "output_tokens": 2100,
          "reasoning_tokens": 0,
          "cache_read_tokens": 74711,
          "cache_write_tokens": 3723,
          "cost_amount": 1.59426345
        },
        "message_categories": {
          "Ad hoc 查询": 2,
          "诊断启动": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786518688429-4ab0880bc",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786518688429-4ab0880bc",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "shigeyuki.fujishima@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.3389,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 1886,
          "reasoning_tokens": 0,
          "cache_read_tokens": 88190,
          "cache_write_tokens": 4623,
          "cost_amount": 1.3389313500000002
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1786499004025-e5e5a2be2",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786499004025-e5e5a2be2",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T01:43:24.025042+00:00",
      "updated_at": "2026-08-12T01:43:24.025042+00:00",
      "user_email": "qizheng@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "coprocess",
          "coprocessor"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 1.0023,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 864,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 65189,
          "cost_amount": 1.0023187500000001
        },
        "message_categories": {
          "诊断纠偏": 1,
          "诊断启动": 2
        }
      }
    },
    {
      "workspace_id": "lark-ws-a5194874-9506-4bf9-ade8-e0c478e6b026",
      "title": "Lark O11Y-2636391",
      "url": "https://investibook.com/workspace/lark-ws-a5194874-9506-4bf9-ade8-e0c478e6b026",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:00:12.039401+00:00",
      "updated_at": "2026-08-12T07:00:12.039401+00:00",
      "user_email": "tongzhigao@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Intelligent Query Processing Service / SQL Optimization & Execution",
      "team": "SQL Optimization & Execution",
      "channel": "lark",
      "scenario_group": "non_diagnosis",
      "scenario_category": "support_case_triage_or_customer_response",
      "scenario_category_counts": {
        "support_case_triage_or_customer_response": 1
      },
      "scenario_confidence": 0.55,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "o11y-"
        ],
        "message_count_used": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.9507,
        "message_count": 9,
        "user_message_count": 3,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 1,
          "output_tokens": 577,
          "reasoning_tokens": 0,
          "cache_read_tokens": 83370,
          "cache_write_tokens": 490,
          "cost_amount": 0.9506865
        },
        "message_categories": {
          "Ad hoc 查询": 2,
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786523168768-6f2f50f7b",
      "title": "https://tidb.atlassian.net/browse/O11Y-2636467",
      "url": "https://investibook.com/workspace/ws-1786523168768-6f2f50f7b",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T08:26:08.768721+00:00",
      "updated_at": "2026-08-12T08:26:12.570370+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": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "br"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.8646,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1531,
          "reasoning_tokens": 0,
          "cache_read_tokens": 104953,
          "cache_write_tokens": 411,
          "cost_amount": 0.8645934
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786505422376-5bf60b0e0",
      "title": "https://tidb.atlassian.net/browse/TCID-13031",
      "url": "https://investibook.com/workspace/ws-1786505422376-5bf60b0e0",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T03:30:22.376238+00:00",
      "updated_at": "2026-08-12T03:31:37.458673+00:00",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "scenario_category_counts": {
        "backup_or_restore": 1,
        "resource_control_or_capacity": 1,
        "pd_tso_or_scheduling": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "backup_or_restore",
          "score": 4,
          "matched_terms": [
            "br",
            "恢复"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "capacity",
            "cpu",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 2,
          "matched_terms": [
            "leader",
            "pd"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "br",
          "capacity",
          "cpu",
          "leader",
          "pd",
          "ru",
          "恢复"
        ],
        "message_count_used": 7,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.7889,
        "message_count": 8,
        "user_message_count": 4,
        "assistant_message_count": 4,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 1,
          "output_tokens": 1033,
          "reasoning_tokens": 0,
          "cache_read_tokens": 84104,
          "cache_write_tokens": 19018,
          "cost_amount": 0.7889139000000001
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 1,
          "解释追问": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786323267878-a7d68d524",
      "title": "無題のワークスペース",
      "url": "https://investibook.com/workspace/ws-1786323267878-a7d68d524",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-10T00:54:27.878811+00:00",
      "updated_at": "2026-08-10T01:04:17.530015+00:00",
      "user_email": "yahonda@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,
        "storage_or_io_bottleneck": 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": "tikv_hotspot_or_coprocessor",
          "score": 6,
          "matched_terms": [
            "coprocess",
            "coprocessor",
            "readpool",
            "region",
            "tikv",
            "unified read pool"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "storage_or_io_bottleneck",
          "score": 5,
          "matched_terms": [
            "compaction",
            "io",
            "raft",
            "raftstore",
            "rocksdb"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 5,
          "matched_terms": [
            "cpu",
            "duration",
            "qps",
            "quota",
            "ru"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "sql_plan_or_query",
          "score": 3,
          "matched_terms": [
            "query",
            "scan",
            "sql"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "transaction_or_lock_contention",
          "score": 2,
          "matched_terms": [
            "lock",
            "txn"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "compaction",
          "coprocess",
          "coprocessor",
          "cpu",
          "duration",
          "io",
          "lock",
          "qps",
          "query",
          "quota",
          "raft",
          "raftstore",
          "readpool",
          "region",
          "rocksdb",
          "ru"
        ],
        "message_count_used": 45,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6211,
        "message_count": 12,
        "user_message_count": 6,
        "assistant_message_count": 6,
        "token_usage": {
          "interaction_records": 6,
          "input_tokens": 0,
          "output_tokens": 0,
          "reasoning_tokens": 0,
          "cache_read_tokens": 20325,
          "cache_write_tokens": 0,
          "cost_amount": 0.6211068000000006
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 1,
          "背景补充": 1,
          "未归类": 2
        }
      }
    },
    {
      "workspace_id": "ws-1786528246140-ccd48b0d0",
      "title": "Mercari TCID-13028",
      "url": "https://investibook.com/workspace/ws-1786528246140-ccd48b0d0",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T09:50:46.140511+00:00",
      "updated_at": "2026-08-17T09:31:12.479542+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,
        "pd_tso_or_scheduling": 1,
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hotspot",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 4,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "ru",
            "容量"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "hotspot",
          "leader",
          "operator",
          "pd",
          "peer",
          "region",
          "ru",
          "scheduler",
          "tikv",
          "容量"
        ],
        "message_count_used": 90,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.6178,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 17,
          "input_tokens": 14221,
          "output_tokens": 9214,
          "reasoning_tokens": 0,
          "cache_read_tokens": 43425,
          "cache_write_tokens": 3842,
          "cost_amount": 0.7654615499999998
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 3,
          "解释追问": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-b421e7ce-7489-4b61-86f4-f7babdf324df",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-b421e7ce-7489-4b61-86f4-f7babdf324df",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T09:01:45.656839+00:00",
      "updated_at": "2026-08-12T09:01:45.656839+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": "cdc_or_replication_lag",
      "scenario_category_counts": {
        "cdc_or_replication_lag": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "cdc",
          "changefeed",
          "同步"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4747,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 390,
          "reasoning_tokens": 0,
          "cache_read_tokens": 41704,
          "cache_write_tokens": 825,
          "cost_amount": 0.4747243500000001
        },
        "message_categories": {
          "产出物迭代": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786498738809-20a59f11a",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786498738809-20a59f11a",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T01:38:58.809707+00:00",
      "updated_at": "2026-08-12T01:38:58.809707+00:00",
      "user_email": "qizheng@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Advanced Intelligent Support",
      "team": "Advanced Intelligent Support",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "coprocess",
          "coprocessor"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.4155,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 1,
          "output_tokens": 888,
          "reasoning_tokens": 0,
          "cache_read_tokens": 31697,
          "cache_write_tokens": 1316,
          "cost_amount": 0.4154827499999999
        },
        "message_categories": {
          "诊断启动": 2
        }
      }
    },
    {
      "workspace_id": "ws-1786514037960-0a691e9a3",
      "title": "Softbank アラートのクエリ",
      "url": "https://investibook.com/workspace/ws-1786514037960-0a691e9a3",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T05:53:57.960737+00:00",
      "updated_at": "2026-08-12T05:54:18.904609+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": "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": [
          "index",
          "sql"
        ],
        "message_count_used": 7,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3648,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 2344,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 37318,
          "cost_amount": 0.36483374999999996
        },
        "message_categories": {
          "Ad hoc 查询": 2
        }
      }
    },
    {
      "workspace_id": "ws-1786461785007-c3f9889bb",
      "title": "去 jira的 o11ydev project 开一个 test ticket",
      "url": "https://investibook.com/workspace/ws-1786461785007-c3f9889bb",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-11T15:23:05.007580+00:00",
      "updated_at": "2026-08-11T15:23:34.297016+00:00",
      "user_email": "wangkang@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support Enablement",
      "team": "Intelligent Support Enablement",
      "channel": "web",
      "scenario_group": "non_diagnosis",
      "scenario_category": "product_usage_or_admin",
      "scenario_category_counts": {
        "product_usage_or_admin": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "api key"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3444,
        "message_count": 10,
        "user_message_count": 5,
        "assistant_message_count": 5,
        "token_usage": {
          "interaction_records": 5,
          "input_tokens": 63150,
          "output_tokens": 1147,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 0,
          "cost_amount": 0.3444250000000001
        },
        "message_categories": {
          "解释追问": 3,
          "流程控制/确认": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1782974104245-9bb7ec7e7",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1782974104245-9bb7ec7e7",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-07-02T06:35:04.245909+00:00",
      "updated_at": "2026-07-02T06:35:04.245909+00:00",
      "user_email": "xuhuaiyu@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "web",
      "scenario_group": "diagnosis",
      "scenario_category": "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": [
            "tikv",
            "热点"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "query",
          "slow query",
          "索引"
        ],
        "message_count_used": 8,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.3377,
        "message_count": 6,
        "user_message_count": 3,
        "assistant_message_count": 3,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 1029,
          "reasoning_tokens": 0,
          "cache_read_tokens": 21783,
          "cache_write_tokens": 875,
          "cost_amount": 0.33773654999999997
        },
        "message_categories": {
          "产出物迭代": 1,
          "Ad hoc 查询": 1,
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786547325805-d7987a67a",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786547325805-d7987a67a",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1784,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 3,
          "input_tokens": 10,
          "output_tokens": 739,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 16142,
          "cost_amount": 0.17842005
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1786528246140-ccd48b0d0",
      "title": "Mercari TCID-13028",
      "url": "https://investibook.com/workspace/ws-1786528246140-ccd48b0d0",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T09:50:46.140511+00:00",
      "updated_at": "2026-08-17T09:31:12.479542+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1,
        "pd_tso_or_scheduling": 1,
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "hotspot",
            "peer",
            "region",
            "tikv"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "pd_tso_or_scheduling",
          "score": 4,
          "matched_terms": [
            "leader",
            "operator",
            "pd",
            "scheduler"
          ]
        },
        {
          "scenario_group": "diagnosis",
          "scenario_category": "resource_control_or_capacity",
          "score": 3,
          "matched_terms": [
            "cpu",
            "ru",
            "容量"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "cpu",
          "hotspot",
          "leader",
          "operator",
          "pd",
          "peer",
          "region",
          "ru",
          "scheduler",
          "tikv",
          "容量"
        ],
        "message_count_used": 90,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1477,
        "message_count": 16,
        "user_message_count": 8,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 17,
          "input_tokens": 14221,
          "output_tokens": 9214,
          "reasoning_tokens": 0,
          "cache_read_tokens": 43425,
          "cache_write_tokens": 3842,
          "cost_amount": 0.7654615499999998
        },
        "message_categories": {
          "产出物迭代": 2,
          "Ad hoc 查询": 3,
          "解释追问": 2,
          "背景补充": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786475092522-285a92034",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786475092522-285a92034",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1374,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 10,
          "output_tokens": 837,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 33271,
          "cost_amount": 0.13735125
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "lark-ws-b25f5d2e-fc42-4a70-9f86-dd3bc831d12f",
      "title": "Lark O11Y-2636185",
      "url": "https://investibook.com/workspace/lark-ws-b25f5d2e-fc42-4a70-9f86-dd3bc831d12f",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T01:04:44.653389+00:00",
      "updated_at": "2026-08-12T01:04:44.653389+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": "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": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "region",
            "tenant"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "io",
          "iops"
        ],
        "message_count_used": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1239,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 1,
          "output_tokens": 1005,
          "reasoning_tokens": 0,
          "cache_read_tokens": 18163,
          "cache_write_tokens": 1440,
          "cost_amount": 0.12394155
        },
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786497979809-428781c59",
      "title": "Cluster 10766841556523235152",
      "url": "https://investibook.com/workspace/ws-1786497979809-428781c59",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T01:26:19.809803+00:00",
      "updated_at": "2026-08-12T01:26:26.817148+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": "tikv_hotspot_or_coprocessor",
      "scenario_category_counts": {
        "tikv_hotspot_or_coprocessor": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "tikv"
        ],
        "message_count_used": 2,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.11,
        "message_count": 4,
        "user_message_count": 2,
        "assistant_message_count": 2,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 10,
          "output_tokens": 1705,
          "reasoning_tokens": 0,
          "cache_read_tokens": 12899,
          "cache_write_tokens": 1781,
          "cost_amount": 0.10997969999999999
        },
        "message_categories": {
          "Ad hoc 查询": 1,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "lark-ws-0c82ee02-60a3-44be-9b7b-13b9d15c8e44",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-0c82ee02-60a3-44be-9b7b-13b9d15c8e44",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T08:48:18.651413+00:00",
      "updated_at": "2026-08-12T08:48:18.651413+00:00",
      "user_email": "weizhin.lim@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "lark",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "scenario_category_counts": {
        "storage_or_io_bottleneck": 1
      },
      "scenario_confidence": 0.62,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [
          "disk",
          "rocksdb"
        ],
        "message_count_used": 4,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1058,
        "message_count": 12,
        "user_message_count": 4,
        "assistant_message_count": 8,
        "token_usage": {
          "interaction_records": 4,
          "input_tokens": 10,
          "output_tokens": 670,
          "reasoning_tokens": 0,
          "cache_read_tokens": 14764,
          "cache_write_tokens": 804,
          "cost_amount": 0.105831
        },
        "message_categories": {
          "Ad hoc 查询": 3,
          "未归类": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786366213337-f6b75f2e5",
      "title": "Hello,",
      "url": "https://investibook.com/workspace/ws-1786366213337-f6b75f2e5",
      "workspace_lifecycle": "updated_existing",
      "created_at": "2026-08-10T12:50:13.337585+00:00",
      "updated_at": "2026-08-10T12:50:42.977874+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": "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": 3,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.1027,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {
          "interaction_records": 1,
          "input_tokens": 0,
          "output_tokens": 57,
          "reasoning_tokens": 0,
          "cache_read_tokens": 15781,
          "cache_write_tokens": 0,
          "cost_amount": 0.1026873
        },
        "message_categories": {
          "流程控制/确认": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786471401821-64b1820b1",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786471401821-64b1820b1",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "wai.ho@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "channel": "web",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.0926,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 917,
          "output_tokens": 3371,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13944,
          "cost_amount": 0.10560599999999999
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "ws-1786471401821-64b1820b1",
      "title": "",
      "url": "https://investibook.com/workspace/ws-1786471401821-64b1820b1",
      "workspace_lifecycle": "updated_existing",
      "created_at": "",
      "updated_at": "",
      "user_email": "",
      "team_path": "",
      "team": "",
      "channel": "image-send",
      "scenario_group": "unknown",
      "scenario_category": null,
      "scenario_category_counts": {},
      "scenario_confidence": 0.2,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [],
      "scenario_evidence": {
        "matched_terms": [],
        "message_count_used": 0,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0.013,
        "message_count": 0,
        "user_message_count": 0,
        "assistant_message_count": 0,
        "token_usage": {
          "interaction_records": 2,
          "input_tokens": 917,
          "output_tokens": 3371,
          "reasoning_tokens": 0,
          "cache_read_tokens": 0,
          "cache_write_tokens": 13944,
          "cost_amount": 0.10560599999999999
        },
        "message_categories": {}
      }
    },
    {
      "workspace_id": "lark-ws-ae8d13d8-3099-4295-8037-115a65354091",
      "title": "Lark chat",
      "url": "https://investibook.com/workspace/lark-ws-ae8d13d8-3099-4295-8037-115a65354091",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T03:56:17.167501+00:00",
      "updated_at": "2026-08-12T03:56:17.167501+00:00",
      "user_email": "peiliang.liu@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "channel": "unknown",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "scenario_category_counts": {
        "resource_control_or_capacity": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "non_diagnosis",
          "scenario_category": "fleet_inventory_or_capacity_analysis",
          "score": 2,
          "matched_terms": [
            "指标",
            "统计"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "duration",
          "p99",
          "qps",
          "ru"
        ],
        "message_count_used": 3,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 3,
        "user_message_count": 1,
        "assistant_message_count": 2,
        "token_usage": {},
        "message_categories": {
          "Ad hoc 查询": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786519016284-3356304ed",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786519016284-3356304ed",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:16:56.284519+00:00",
      "updated_at": "2026-08-12T07:16:56.284519+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "unknown",
      "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": 1,
        "review_required": true
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {},
        "message_categories": {
          "诊断启动": 1
        }
      }
    },
    {
      "workspace_id": "ws-1786519057708-4f5abafae",
      "title": "未命名工作空间",
      "url": "https://investibook.com/workspace/ws-1786519057708-4f5abafae",
      "workspace_lifecycle": "new",
      "created_at": "2026-08-12T07:17:37.708040+00:00",
      "updated_at": "2026-08-12T07:17:37.708040+00:00",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "channel": "unknown",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "scenario_category_counts": {
        "sql_plan_or_query": 1
      },
      "scenario_confidence": 0.78,
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_secondary_categories": [
        {
          "scenario_group": "diagnosis",
          "scenario_category": "tikv_hotspot_or_coprocessor",
          "score": 4,
          "matched_terms": [
            "coprocess",
            "coprocessor",
            "tikv",
            "热点"
          ]
        }
      ],
      "scenario_evidence": {
        "matched_terms": [
          "digest",
          "plan",
          "query",
          "slow query",
          "sql",
          "topsql",
          "索引"
        ],
        "message_count_used": 1,
        "review_required": false
      },
      "is_inspection": null,
      "quality_notes": "",
      "daily_delta": {
        "cost": 0,
        "message_count": 2,
        "user_message_count": 1,
        "assistant_message_count": 1,
        "token_usage": {},
        "message_categories": {
          "诊断启动": 1
        }
      }
    }
  ]
}
