{
  "schema": "model-observability-telemetry-kit",
  "trace": {
    "request_id": "string",
    "workflow": "string",
    "user_segment": "string",
    "route_policy": "string",
    "model": "string",
    "provider": "string",
    "fallback_used": "boolean",
    "latency_ms": "number",
    "token_cost_usd": "number",
    "source_ids": ["string"],
    "quality_score": "number",
    "groundedness_score": "number",
    "approval_state": "approved | rejected | bypassed | not_required",
    "incident_id": "string"
  }
}