{
  "date": "2026-07-18",
  "timezone": "Asia/Shanghai",
  "window_start": "2026-07-18T00:00:00+08:00",
  "window_end": "2026-07-19T00:00:00+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": 11.426,
    "total_acp_interactions": 32,
    "active_users": 12,
    "workspace_count": 18,
    "created_workspace_count": 15,
    "new_workspace_count": 20,
    "updated_existing_workspace_count": 4,
    "changed_workspace_count": 24,
    "message_count": 119,
    "user_message_count": 48,
    "assistant_message_count": 69,
    "unknown_user_count": 1,
    "unknown_cost": 0.0197
  },
  "teams": [
    {
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "cost": 3.5276,
      "acp_interactions": 19,
      "workspace_count": 8,
      "active_users": 2,
      "message_count": 60,
      "user_message_count": 20,
      "cost_per_ws": 0.441,
      "cost_per_acp": 0.1857,
      "acp_per_ws": 2.375,
      "message_per_ws": 7.5,
      "message_per_acp": 3.1579,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "cost": 2.7855,
      "acp_interactions": 7,
      "workspace_count": 4,
      "active_users": 3,
      "message_count": 54,
      "user_message_count": 27,
      "cost_per_ws": 0.6964,
      "cost_per_acp": 0.3979,
      "acp_per_ws": 1.75,
      "message_per_ws": 13.5,
      "message_per_acp": 7.7143,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Service Orchestration Engineering / Global Control",
      "team": "Global Control",
      "cost": 2.2746,
      "acp_interactions": 1,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 2,
      "user_message_count": 1,
      "cost_per_ws": 2.2746,
      "cost_per_acp": 2.2746,
      "acp_per_ws": 1.0,
      "message_per_ws": 2.0,
      "message_per_acp": 2.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "team": "KV Service",
      "cost": 1.0338,
      "acp_interactions": 1,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 6,
      "user_message_count": 2,
      "cost_per_ws": 1.0338,
      "cost_per_acp": 1.0338,
      "acp_per_ws": 1.0,
      "message_per_ws": 6.0,
      "message_per_acp": 6.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "cost": 0.6473,
      "acp_interactions": 1,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 4,
      "user_message_count": 2,
      "cost_per_ws": 0.6473,
      "cost_per_acp": 0.6473,
      "acp_per_ws": 1.0,
      "message_per_ws": 4.0,
      "message_per_acp": 4.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "cost": 0.5619,
      "acp_interactions": 1,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 6,
      "user_message_count": 2,
      "cost_per_ws": 0.5619,
      "cost_per_acp": 0.5619,
      "acp_per_ws": 1.0,
      "message_per_ws": 6.0,
      "message_per_acp": 6.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Engineering Group / Service Orchestration Engineering / Essential & Premium",
      "team": "Essential & Premium",
      "cost": 0.3408,
      "acp_interactions": 1,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 6,
      "user_message_count": 2,
      "cost_per_ws": 0.3408,
      "cost_per_acp": 0.3408,
      "acp_per_ws": 1.0,
      "message_per_ws": 6.0,
      "message_per_acp": 6.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "Product / TiDB X Core Product",
      "team": "TiDB X Core Product",
      "cost": 0.2348,
      "acp_interactions": 1,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 4,
      "user_message_count": 2,
      "cost_per_ws": 0.2348,
      "cost_per_acp": 0.2348,
      "acp_per_ws": 1.0,
      "message_per_ws": 4.0,
      "message_per_acp": 4.0,
      "correction_message_ratio": null
    },
    {
      "team_path": "(unknown)",
      "team": "(unknown)",
      "cost": 0.0197,
      "acp_interactions": 0,
      "workspace_count": 1,
      "active_users": 1,
      "message_count": 26,
      "user_message_count": 13,
      "cost_per_ws": 0.0197,
      "cost_per_acp": null,
      "acp_per_ws": 0.0,
      "message_per_ws": 26.0,
      "message_per_acp": null,
      "correction_message_ratio": null
    }
  ],
  "users": [
    {
      "user_email": "cherubin.j@pingcap.com",
      "name": "Cherubin John",
      "en_name": "",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "team": "Intelligent Support",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 3.3162,
      "acp_interactions": 16,
      "workspace_count": 7,
      "message_count": 60,
      "user_message_count": 20,
      "channel_breakdown": {
        "lark": 16
      },
      "frequency_bucket": "高频",
      "depth_bucket": "低轮次",
      "behavior_mode": "高频低轮次",
      "avg_acp_per_ws": 2.2857
    },
    {
      "user_email": "cwen@pingcap.com",
      "name": "殷成文",
      "en_name": "Cwen Yin",
      "team_path": "Engineering Group / Service Orchestration Engineering / Global Control",
      "team": "Global Control",
      "mapping_source": "pingcap_members_by_team.csv",
      "cost": 2.2746,
      "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": "lingtao.li@pingcap.com",
      "name": "李凌涛",
      "en_name": "Lingtao Li",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "mapping_source": "pingcap_members_by_team.csv",
      "cost": 2.1982,
      "acp_interactions": 1,
      "workspace_count": 2,
      "message_count": 28,
      "user_message_count": 14,
      "channel_breakdown": {
        "cli": 1
      },
      "frequency_bucket": "高频",
      "depth_bucket": "低轮次",
      "behavior_mode": "高频低轮次",
      "avg_acp_per_ws": 0.5
    },
    {
      "user_email": "yuping@pingcap.com",
      "name": "俞平",
      "en_name": "Ping Yu",
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "team": "KV Service",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 1.0338,
      "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": "nizheming@pingcap.com",
      "name": "倪哲鸣",
      "en_name": "Zheming Ni",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "team": "Engineering Mission Pods",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 0.6473,
      "acp_interactions": 1,
      "workspace_count": 1,
      "message_count": 2,
      "user_message_count": 1,
      "channel_breakdown": {
        "cli": 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": "mizuki.masuda@pingcap.com",
      "name": "Masuda Mizuki",
      "en_name": "Mizuki Masuda",
      "team_path": "Japan Business Group / Technical Service",
      "team": "Technical Service",
      "mapping_source": "pingcap_members_by_team.csv",
      "cost": 0.5619,
      "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": "jianghuaxi@pingcap.com",
      "name": "江华禧",
      "en_name": "Huaxi Jiang",
      "team_path": "Engineering Group / Service Orchestration Engineering / Essential & Premium",
      "team": "Essential & Premium",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 0.3408,
      "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
    },
    {
      "user_email": "letian.wang@pingcap.com",
      "name": "王乐天",
      "en_name": "Letian Wang",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "mapping_source": "pingcap_members_by_team.csv",
      "cost": 0.3399,
      "acp_interactions": 5,
      "workspace_count": 1,
      "message_count": 12,
      "user_message_count": 6,
      "channel_breakdown": {
        "web": 5
      },
      "frequency_bucket": "低频",
      "depth_bucket": "高轮次",
      "behavior_mode": "低频高轮次",
      "avg_acp_per_ws": 5.0
    },
    {
      "user_email": "xuhuaiyu@pingcap.com",
      "name": "徐怀宇",
      "en_name": "Huaiyu Xu",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "team": "Observability & Diagnostics Service",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 0.2474,
      "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": "qiaodan@pingcap.com",
      "name": "乔丹",
      "en_name": "Dan Qiao",
      "team_path": "Product / TiDB X Core Product",
      "team": "TiDB X Core Product",
      "mapping_source": "investibook-usage-team-overrides.csv",
      "cost": 0.2348,
      "acp_interactions": 1,
      "workspace_count": 1,
      "message_count": 4,
      "user_message_count": 2,
      "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",
      "cost": 0.2114,
      "acp_interactions": 3,
      "workspace_count": 1,
      "message_count": 0,
      "user_message_count": 0,
      "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": "zhitong.guo@pingcap.com",
      "name": "",
      "en_name": "",
      "team_path": "",
      "team": "",
      "mapping_source": "",
      "cost": 0.0197,
      "acp_interactions": 0,
      "workspace_count": 1,
      "message_count": 26,
      "user_message_count": 13,
      "channel_breakdown": {},
      "frequency_bucket": "低频",
      "depth_bucket": "低轮次",
      "behavior_mode": "低频低轮次",
      "avg_acp_per_ws": 0.0
    }
  ],
  "message_categories": [
    {
      "category": "查询纠偏",
      "user_message_count": 1,
      "share": 0.020833,
      "estimated_cost_by_turn": 0.238,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 21.0,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "产出物迭代",
      "user_message_count": 4,
      "share": 0.083333,
      "estimated_cost_by_turn": 0.9522,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 507.75,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "Ad hoc 查询",
      "user_message_count": 20,
      "share": 0.416667,
      "estimated_cost_by_turn": 4.7608,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 135.7,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "诊断启动",
      "user_message_count": 9,
      "share": 0.1875,
      "estimated_cost_by_turn": 2.1424,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 161.22,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "解释追问",
      "user_message_count": 5,
      "share": 0.104167,
      "estimated_cost_by_turn": 1.1902,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 16.0,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "流程控制/确认",
      "user_message_count": 4,
      "share": 0.083333,
      "estimated_cost_by_turn": 0.9522,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 60.25,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "方法论/能力咨询",
      "user_message_count": 2,
      "share": 0.041667,
      "estimated_cost_by_turn": 0.4761,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 17.0,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    },
    {
      "category": "未归类",
      "user_message_count": 3,
      "share": 0.0625,
      "estimated_cost_by_turn": 0.7141,
      "estimated_cost_by_output_weight": null,
      "avg_user_chars": 11.67,
      "avg_next_assistant_chars": null,
      "classification_method": "rule_based_keywords_v2"
    }
  ],
  "unmatched_users": [
    {
      "user_email": "zhitong.guo@pingcap.com",
      "cost": 0.0197,
      "interactions": 0,
      "workspace_count": 1,
      "top_workspace": "ws-1784337129749-e3863d6e9"
    }
  ],
  "top_changed_workspaces": [
    {
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      "title": "使用 dedicated-cloud-ops skills 诊断一下",
      "workspace_lifecycle": "new",
      "user_email": "cwen@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Global Control",
      "scenario_group": "non_diagnosis",
      "scenario_category": "skill_or_workflow_setup",
      "cost": 2.2746,
      "message_count": 2,
      "user_message_count": 1
    },
    {
      "workspace_id": "ws-1784337129749-e3863d6e9",
      "title": "debug",
      "workspace_lifecycle": "new",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "scenario_group": "diagnosis",
      "scenario_category": "component_failure_or_bug",
      "cost": 1.3944,
      "message_count": 26,
      "user_message_count": 13
    },
    {
      "workspace_id": "lark-ws-dab9abb5-28c8-4bf1-8951-5be187e1e91a",
      "title": "Lark APID-29200",
      "workspace_lifecycle": "new",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "cost": 1.2799,
      "message_count": 21,
      "user_message_count": 7
    },
    {
      "workspace_id": "ws-1784380939198-1952a79a4",
      "title": "未命名工作空间",
      "workspace_lifecycle": "new",
      "user_email": "yuping@pingcap.com",
      "team_path": "Engineering Group / Storage Service Engineering / KV Service",
      "scenario_group": "diagnosis",
      "scenario_category": "tikv_hotspot_or_coprocessor",
      "cost": 1.0171,
      "message_count": 3,
      "user_message_count": 1
    },
    {
      "workspace_id": "lark-ws-3bcabbbe-128c-43a0-a95d-ddeaa2f61eec",
      "title": "Lark APID-29198",
      "workspace_lifecycle": "new",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "cost": 0.9922,
      "message_count": 12,
      "user_message_count": 4
    },
    {
      "workspace_id": "ws-1781598701127-da28e5bfa",
      "title": "tikv自动巡检",
      "workspace_lifecycle": "updated_existing",
      "user_email": "lingtao.li@pingcap.com",
      "team_path": "Engineering Group / Database Service Engineering / Observability & Diagnostics Service",
      "scenario_group": "non_diagnosis",
      "scenario_category": "inspection_or_report_generation",
      "cost": 0.8038,
      "message_count": 2,
      "user_message_count": 1
    },
    {
      "workspace_id": "ws-c8359af5ac799959212fafdeb750adfb",
      "title": "Performance diagnosis",
      "workspace_lifecycle": "new",
      "user_email": "nizheming@pingcap.com",
      "team_path": "Engineering Group / Engineering Mission Pods",
      "scenario_group": "diagnosis",
      "scenario_category": "storage_or_io_bottleneck",
      "cost": 0.6229,
      "message_count": 2,
      "user_message_count": 1
    },
    {
      "workspace_id": "ws-1784330210698-7927d1640",
      "title": "TCID-12935",
      "workspace_lifecycle": "new",
      "user_email": "mizuki.masuda@pingcap.com",
      "team_path": "Japan Business Group / Technical Service",
      "scenario_group": "diagnosis",
      "scenario_category": "resource_control_or_capacity",
      "cost": 0.5375,
      "message_count": 3,
      "user_message_count": 1
    },
    {
      "workspace_id": "lark-ws-2c08c6b2-a748-4705-af00-b1fa8ad8b573",
      "title": "Lark APID-29199",
      "workspace_lifecycle": "new",
      "user_email": "cherubin.j@pingcap.com",
      "team_path": "Engineering Group / Global Support Intelligence / Intelligent Support",
      "scenario_group": "diagnosis",
      "scenario_category": "backup_or_restore",
      "cost": 0.5036,
      "message_count": 9,
      "user_message_count": 3
    },
    {
      "workspace_id": "lark-ws-4e4ca4eb-91fb-40bc-8bcf-85d6839e92e2",
      "title": "Lark chat",
      "workspace_lifecycle": "new",
      "user_email": "jianghuaxi@pingcap.com",
      "team_path": "Engineering Group / Service Orchestration Engineering / Essential & Premium",
      "scenario_group": "diagnosis",
      "scenario_category": "gc_or_allocator_pressure",
      "cost": 0.3393,
      "message_count": 3,
      "user_message_count": 1
    },
    {
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