{
  "note": "Placeholder fixture only. The exact payload schema for circuit validation must be confirmed against Swagger/API schema before implementation.",
  "route_hint": "POST /v1/circuits/validate",
  "schema_target_hint": "rqm-circuits 0.2",
  "todo": [
    "confirm exact request body shape in Swagger UI",
    "replace placeholder keys with documented fields only"
  ],
  "request_placeholder": {
    "confirm_in_swagger": true
  }
}