{
  "properties": {
    "clwVersion": {
      "description": "CWL version of the described application package.",
      "pattern": "^v\\d+(\\.\\d+(\\.\\d+)*)*$",
      "title": "cwlVersion",
      "type": "string"
    }
  },
  "required": [
    "cwlVersion"
  ],
  "type": "object"
}