{
  "type": "object",
  "properties": {
    "ok": {"type": "boolean"},
    "output_path": {"type": "string"},
    "output_format": {"type": "string"},
    "record_count": {"type": "integer"},
    "bytes_written": {"type": "integer"},
    "validation": {"type": "object"},
    "error": {"type": "string"}
  },
  "required": ["ok"]
}