{
  "hook_event_name": "Status",
  "session_id": "example-api-cost-only",
  "model": { "id": "claude-sonnet-4-6", "display_name": "Sonnet 4.6" },
  "cost": { "total_cost_usd": 0.0042 },
  "context_window": { "used_percentage": 12, "remaining_percentage": 88 }
}