{
  "schema_version": "1.0",
  "timestamp": "2026-09-21T09:41:02.184Z",
  "severity": "INFO",
  "event_id": "evt_demo_002",
  "event_name": "generation.completed",
  "service": "assistant-worker",
  "attributes": {
    "workflow_id": "wf_demo_042",
    "model": "example-model",
    "config_version": "prompt-v3",
    "outcome": "completed",
    "duration_ms": 842
  }
}