{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/TextBlock",
  "title": "TextBlock",
  "additionalProperties": false,
  "type": "object",
  "required": [
    "type",
    "text"
  ],
  "description": "A text content block.",
  "properties": {
    "type": {
      "const": "text",
      "type": "string",
      "description": "The block type, always `text`."
    },
    "text": {
      "type": "string",
      "description": "The text content."
    }
  }
}