{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/EntityMetadata",
  "title": "EntityMetadata",
  "type": "object",
  "description": "Metadata for an entity.",
  "properties": {
    "kind": {
      "type": "string",
      "description": "The kind of entity."
    },
    "uuid": {
      "type": "string",
      "format": "uuid",
      "description": "The UUID of the entity."
    },
    "spec_version": {
      "type": "integer",
      "description": "Version number of the spec."
    },
    "categories": {
      "type": "object",
      "additionalProperties": {
        "type": "string"
      },
      "description": "Categories assigned to the entity as key-value pairs."
    },
    "owner_reference": {
      "$ref": "#/components/schemas/Reference"
    },
    "project_reference": {
      "$ref": "#/components/schemas/Reference"
    }
  }
}