{
  "date": "2026-09-03",
  "timezone": "Asia/Shanghai",
  "window_start": "2026-09-03T00:00:00+08:00",
  "window_end": "2026-09-04T00:00:00+08:00",
  "granularity": "daily",
  "data_status": "complete",
  "source": {
    "kind": "grafana_prometheus_and_prod_sqlite",
    "grafana_datasource": "DevOps-prometheus",
    "grafana_datasource_id": 80,
    "prometheus_labels": {
      "cluster": "prod-devops",
      "namespace": "investibook",
      "job": "backend",
      "prometheus": "monitoring/o11y-vmagent"
    },
    "prod_backend_sqlite": "/data/db/investibook.db",
    "notes": [
      "Cost comes from prod SQLite interaction_token_usage with runtime-aware accounting: OpenCode ses_* rows use cumulative session deltas; PI UUID and image-parse rows use per-row increments.",
      "workspace_count in summary is cost-derived distinct positive-cost workspaces.",
      "Prometheus is used for ACP interaction counts only; investigatory PI sessions made investibook_acp_session_cost unsuitable as the cost source for mixed-runtime weekly reporting.",
      "message categories are rule-based user-message classifications.",
      "scenario labels are added to split daily workspace_changes rows."
    ]
  },
  "summary": {
    "total_cost": 28.6618,
    "total_acp_interactions": 80,
    "active_users": 16,
    "workspace_count": 24,
    "created_workspace_count": 24,
    "new_workspace_count": 19,
    "updated_existing_workspace_count": 6,
    "changed_workspace_count": 25,
    "message_count": 177,
    "user_message_count": 80,
    "assistant_message_count": 93,
    "unknown_user_count": 0,
    "unknown_cost": 0.0
  },
  "teams": [
    {
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "cost": 6.6426,
      "acp_interactions": 19,
      "workspace_count": 8,
      "active_users": 4,
      "message_count": 40,
      "user_message_count": 19,
      "cost_per_ws": 0.8303,
      "cost_per_acp": 0.3496,
      "acp_per_ws": 2.375,
      "message_per_ws": 5.0,
      "message_per_acp": 2.1053,
      "correction_message_ratio": null
    },
    {
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "cost": 4.9826,
      "acp_interactions": 10,
      "workspace_count": 2,
      "active_users": 2,
      "message_count": 20,
      "user_message_count": 10,
      "cost_per_ws": 2.4913,
      "cost_per_acp": 0.4983,
      "acp_per_ws": 5.0,
      "message_per_ws": 10.0,
      "message_per_acp": 2.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "cost": 4.5572,
      "acp_interactions": 22,
      "workspace_count": 3,
      "active_users": 3,
      "message_count": 46,
      "user_message_count": 22,
      "cost_per_ws": 1.5191,
      "cost_per_acp": 0.2071,
      "acp_per_ws": 7.3333,
      "message_per_ws": 15.3333,
      "message_per_acp": 2.0909,
      "correction_message_ratio": null
    },
    {
      "team_path": "APAC Business Group / Customer Success & Alliances / Professional Services",
      "team": "Professional Services",
      "cost": 4.0315,
      "acp_interactions": 3,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 6,
      "user_message_count": 3,
      "cost_per_ws": 4.0315,
      "cost_per_acp": 1.3438,
      "acp_per_ws": 3.0,
      "message_per_ws": 6.0,
      "message_per_acp": 2.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability Service",
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      "acp_interactions": 7,
      "workspace_count": 2,
      "active_users": 1,
      "message_count": 14,
      "user_message_count": 7,
      "cost_per_ws": 1.4744,
      "cost_per_acp": 0.4213,
      "acp_per_ws": 3.5,
      "message_per_ws": 7.0,
      "message_per_acp": 2.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "team": "KV Service",
      "cost": 2.8511,
      "acp_interactions": 2,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 6,
      "user_message_count": 2,
      "cost_per_ws": 2.8511,
      "cost_per_acp": 1.4256,
      "acp_per_ws": 2.0,
      "message_per_ws": 6.0,
      "message_per_acp": 3.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "cost": 1.3327,
      "acp_interactions": 7,
      "workspace_count": 2,
      "active_users": 2,
      "message_count": 15,
      "user_message_count": 7,
      "cost_per_ws": 0.6664,
      "cost_per_acp": 0.1904,
      "acp_per_ws": 3.5,
      "message_per_ws": 7.5,
      "message_per_acp": 2.1429,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Database Service Engineering / Intelligent Query Processing Service / SQL Optimization & Execution",
      "team": "SQL Optimization & Execution",
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      "workspace_count": 1,
      "active_users": 1,
      "message_count": 3,
      "user_message_count": 1,
      "cost_per_ws": 0.8149,
      "cost_per_acp": 0.8149,
      "acp_per_ws": 1.0,
      "message_per_ws": 3.0,
      "message_per_acp": 3.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "cost": 0.5004,
      "acp_interactions": 9,
      "workspace_count": 5,
      "active_users": 1,
      "message_count": 27,
      "user_message_count": 9,
      "cost_per_ws": 0.1001,
      "cost_per_acp": 0.0556,
      "acp_per_ws": 1.8,
      "message_per_ws": 5.4,
      "message_per_acp": 3.0,
      "correction_message_ratio": null
    }
  ],
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      "user_email": "wen.hu@pingcap.com",
      "name": "胡雯",
      "en_name": "Wen Hu",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "mapping_source": "pingcap_members_by_team.csv",
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      "acp_interactions": 5,
      "workspace_count": 2,
      "message_count": 11,
      "user_message_count": 5,
      "channel_breakdown": {
        "web": 5
      },
      "frequency_bucket": "高频",
      "depth_bucket": "低轮次",
      "behavior_mode": "高频低轮次",
      "avg_acp_per_ws": 2.5
    },
    {
      "user_email": "taichi.kusaka@pingcap.com",
      "name": "日下太智",
      "en_name": "Taichi Kusaka",
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "mapping_source": "pingcap_members_by_team.csv",
      "cost": 4.2803,
      "acp_interactions": 8,
      "workspace_count": 1,
      "message_count": 16,
      "user_message_count": 8,
      "channel_breakdown": {
        "web": 8
      },
      "frequency_bucket": "低频",
      "depth_bucket": "高轮次",
      "behavior_mode": "低频高轮次",
      "avg_acp_per_ws": 8.0
    },
    {
      "user_email": "zhi.xie@pingcap.com",
      "name": "谢智",
      "en_name": "Zhi Xie",
      "team_path": "APAC Business Group / Customer Success & Alliances / Professional Services",
      "team": "Professional Services",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 4.0315,
      "acp_interactions": 3,
      "workspace_count": 1,
      "message_count": 6,
      "user_message_count": 3,
      "channel_breakdown": {
        "web": 3
      },
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 3.0
    },
    {
      "user_email": "takahiko.miyasaka@pingcap.com",
      "name": "Miyasaka Takahiko",
      "en_name": "Takahiko Miyasaka",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "mapping_source": "pingcap_members_by_team.csv",
      "cost": 3.1855,
      "acp_interactions": 11,
      "workspace_count": 1,
      "message_count": 22,
      "user_message_count": 11,
      "channel_breakdown": {
        "web": 11
      },
      "frequency_bucket": "低频",
      "depth_bucket": "高轮次",
      "behavior_mode": "低频高轮次",
      "avg_acp_per_ws": 11.0
    },
    {
      "user_email": "wenxuan.zhang@pingcap.com",
      "name": "张文轩",
      "en_name": "Wenxuan",
      "team_path": "Engineering Group / Database Service Engineering / TiDB Scalability Service",
      "team": "TiDB Scalability Service",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 2.9488,
      "acp_interactions": 7,
      "workspace_count": 2,
      "message_count": 14,
      "user_message_count": 7,
      "channel_breakdown": {
        "web": 7
      },
      "frequency_bucket": "高频",
      "depth_bucket": "低轮次",
      "behavior_mode": "高频低轮次",
      "avg_acp_per_ws": 3.5
    },
    {
      "user_email": "ming.yan@pingcap.com",
      "name": "闫明",
      "en_name": "Ming Yan",
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "team": "KV Service",
      "mapping_source": "pingcap_members_by_team.csv",
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      "workspace_count": 1,
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      "user_message_count": 2,
      "channel_breakdown": {
        "lark": 2
      },
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 2.0
    },
    {
      "user_email": "yikai.puah@pingcap.com",
      "name": "Puah Yi Kai",
      "en_name": "",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "mapping_source": "investibook-usage-team-overrides.csv",
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      "acp_interactions": 8,
      "workspace_count": 3,
      "message_count": 14,
      "user_message_count": 7,
      "channel_breakdown": {
        "web": 8
      },
      "frequency_bucket": "高频",
      "depth_bucket": "低轮次",
      "behavior_mode": "高频低轮次",
      "avg_acp_per_ws": 2.6667
    },
    {
      "user_email": "brian.w@pingcap.com",
      "name": "张建伟",
      "en_name": "Brian.Zhang",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "mapping_source": "investibook-usage-team-overrides.csv",
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      "workspace_count": 1,
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      "user_message_count": 6,
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        "web": 6
      },
      "frequency_bucket": "低频",
      "depth_bucket": "高轮次",
      "behavior_mode": "低频高轮次",
      "avg_acp_per_ws": 6.0
    },
    {
      "user_email": "yahonda@pingcap.com",
      "name": "Yasuo Honda",
      "en_name": "",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "mapping_source": "investibook-usage-team-overrides.csv",
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      "acp_interactions": 10,
      "workspace_count": 1,
      "message_count": 22,
      "user_message_count": 10,
      "channel_breakdown": {
        "web": 10
      },
      "frequency_bucket": "低频",
      "depth_bucket": "高轮次",
      "behavior_mode": "低频高轮次",
      "avg_acp_per_ws": 10.0
    },
    {
      "user_email": "looperth.wong@pingcap.com",
      "name": "Wong Loo Perth",
      "en_name": "",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "mapping_source": "investibook-usage-team-overrides.csv",
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      "acp_interactions": 3,
      "workspace_count": 1,
      "message_count": 7,
      "user_message_count": 3,
      "channel_breakdown": {
        "lark": 1,
        "web": 2
      },
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 3.0
    },
    {
      "user_email": "zhangyuanjia@pingcap.com",
      "name": "张原嘉",
      "en_name": "Ryan Zhang",
      "team_path": "Engineering Group / Database Service Engineering / Intelligent Query Processing Service / SQL Optimization & Execution",
      "team": "SQL Optimization & Execution",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 0.8149,
      "acp_interactions": 1,
      "workspace_count": 1,
      "message_count": 3,
      "user_message_count": 1,
      "channel_breakdown": {
        "web": 1
      },
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 1.0
    },
    {
      "user_email": "masaki.hayashi@pingcap.com",
      "name": "Hayashi Masaki",
      "en_name": "Masaki Hayashi",
      "team_path": "Japan Business Group / PreSales",
      "team": "PreSales",
      "mapping_source": "pingcap_members_by_team.csv",
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      "acp_interactions": 2,
      "workspace_count": 1,
      "message_count": 4,
      "user_message_count": 2,
      "channel_breakdown": {
        "web": 2
      },
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 2.0
    },
    {
      "user_email": "shaoxiqian@pingcap.com",
      "name": "邵希茜",
      "en_name": "Anita Shao",
      "team_path": "Engineering Group / Database Service Engineering / Efficiency & Quality",
      "team": "Efficiency & Quality",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 0.5004,
      "acp_interactions": 9,
      "workspace_count": 5,
      "message_count": 27,
      "user_message_count": 9,
      "channel_breakdown": {
        "lark": 9
      },
      "frequency_bucket": "高频",
      "depth_bucket": "低轮次",
      "behavior_mode": "高频低轮次",
      "avg_acp_per_ws": 1.8
    },
    {
      "user_email": "qiaoxinke@pingcap.com",
      "name": "乔心轲",
      "en_name": "Xinke Qiao",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 0.2194,
      "acp_interactions": 1,
      "workspace_count": 1,
      "message_count": 2,
      "user_message_count": 1,
      "channel_breakdown": {
        "web": 1
      },
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 1.0
    },
    {
      "user_email": "wai.ho@pingcap.com",
      "name": "Chun Wai Ho",
      "en_name": "Wai Ho",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "mapping_source": "pingcap_members_by_team.csv",
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      "acp_interactions": 3,
      "workspace_count": 1,
      "message_count": 6,
      "user_message_count": 3,
      "channel_breakdown": {
        "web": 3
      },
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 3.0
    },
    {
      "user_email": "cong.cao@pingcap.com",
      "name": "曹聪",
      "en_name": "Cong Cao",
      "team_path": "APAC Business Group / Customer Success & Alliances / Technical Account Management",
      "team": "Technical Account Management",
      "mapping_source": "pingcap_members_by_team.csv",
      "cost": 0.055,
      "acp_interactions": 1,
      "workspace_count": 1,
      "message_count": 3,
      "user_message_count": 1,
      "channel_breakdown": {
        "lark": 1
      },
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 1.0
    }
  ],
  "message_categories": [
    {
      "category": "查询纠偏",
      "user_message_count": 1,
      "share": 0.0125,
      "estimated_cost_by_turn": 0.3583,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 548.0,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "产出物迭代",
      "user_message_count": 7,
      "share": 0.0875,
      "estimated_cost_by_turn": 2.5079,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 1155.71,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "Ad hoc 查询",
      "user_message_count": 31,
      "share": 0.3875,
      "estimated_cost_by_turn": 11.1065,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 799.68,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "诊断启动",
      "user_message_count": 11,
      "share": 0.1375,
      "estimated_cost_by_turn": 3.941,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 1039.45,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "解释追问",
      "user_message_count": 8,
      "share": 0.1,
      "estimated_cost_by_turn": 2.8662,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 79.88,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "流程控制/确认",
      "user_message_count": 8,
      "share": 0.1,
      "estimated_cost_by_turn": 2.8662,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 780.0,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "背景补充",
      "user_message_count": 12,
      "share": 0.15,
      "estimated_cost_by_turn": 4.2993,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 89.83,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "未归类",
      "user_message_count": 2,
      "share": 0.025,
      "estimated_cost_by_turn": 0.7165,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 7.0,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    }
  ],
  "unmatched_users": [],
  "top_changed_workspaces": [
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      "title": "Applibot - Rommance",
      "workspace_lifecycle": "updated_existing",
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      "team_path": "Japan Business Group / PreSales",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "cost": 4.2803,
      "message_count": 16,
      "user_message_count": 8
    },
    {
      "workspace_id": "ws-1788403462981-2dc1fb2d2",
      "title": "未命名工作空间",
      "workspace_lifecycle": "new",
      "user_email": "wen.hu@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "scenario_group": "diagnosis",
      "scenario_category": "transaction_or_lock_contention",
      "cost": 4.2468,
      "message_count": 8,
      "user_message_count": 4
    },
    {
      "workspace_id": "ws-1788401466631-28c80e90d",
      "title": "Bitunix 09/03 05:34 slow-queries",
      "workspace_lifecycle": "new",
      "user_email": "zhi.xie@pingcap.com",
      "team_path": "APAC Business Group / Customer Success & Alliances / Professional Services",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "cost": 4.0315,
      "message_count": 6,
      "user_message_count": 3
    },
    {
      "workspace_id": "ws-1787107186277-9f7c51b27",
      "title": "Cygames TCID-13055 and TCOC-5826",
      "workspace_lifecycle": "updated_existing",
      "user_email": "takahiko.miyasaka@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "scenario_group": "diagnosis",
      "scenario_category": "sql_plan_or_query",
      "cost": 3.1855,
      "message_count": 22,
      "user_message_count": 11
    },
    {
      "workspace_id": "lark-ws-3cc8e520-a547-49c3-956a-08a12e9dc097",
      "title": "Lark TCOC-5914",
      "workspace_lifecycle": "new",
      "user_email": "ming.yan@pingcap.com",
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