{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Universe",
  "type": "object",
  "properties": {
    "@type": {
      "type": "string"
    },
    "identifier": {
      "type": "string",
      "description": "Unique universe identifier"
    },
    "title": {
      "type": "string",
      "description": "Human-readable universe title"
    },
    "description": {
      "type": "string"
    },
    "contains": {
      "type": "array"
    }
  }
}