{
  "date": "2026-09-06",
  "timezone": "Asia/Shanghai",
  "window_start": "2026-09-06T00:00:00+08:00",
  "window_end": "2026-09-07T00:00:00+08:00",
  "currency": "USD",
  "source": {
    "kind": "prod_interaction_token_usage",
    "accounting": "OpenCode per-session cumulative differences; PI and image-parse per-row increments",
    "notes": [
      "Partitioned cost breakdowns; each source contribution is counted once per dimension.",
      "Model tier is backend-reported metadata, not a verified provider model ID. Historical PI standard labels do not prove use of a standard model.",
      "Scenario cost is assigned to the daily workspace primary label; multi-label costs are not duplicated and task-step costs are not inferred.",
      "Primary scenario labels retain collector classification and review status; they are not a completed manual business-purpose review.",
      "Production DB costs are not proof of a Helix profile assignment or of real-user versus development purpose."
    ]
  },
  "summary": {
    "cost_amount": 0.6134751,
    "cost_workspace_count": 1
  },
  "breakdowns": {
    "runtime": [
      {
        "runtime": "opencode",
        "cost_amount": 0.6134751,
        "share": 1.0
      }
    ],
    "reported_model_tier": [
      {
        "reported_model_tier": "standard",
        "cost_amount": 0.6134751,
        "share": 1.0
      }
    ],
    "primary_scenario_category": [
      {
        "primary_scenario_category": "backup_or_restore",
        "cost_amount": 0.6134751,
        "share": 1.0
      }
    ]
  },
  "workspace_cost_rows": [
    {
      "workspace_id": "lark-ws-9e92b7b5-32ad-423a-b2fc-1fbe368991f2",
      "user_email": "cherubin.j@pingcap.com",
      "channel": "lark",
      "runtime": "opencode",
      "reported_model_tier": "standard",
      "primary_scenario_category": "backup_or_restore",
      "scenario_classification_method": "score_based_title_and_user_messages_v2",
      "scenario_review_required": true,
      "cost_amount": 0.6134751,
      "interaction_records": 1
    }
  ]
}