{
  "fields": [
    { "key": "title", "name": "Title", "type": "text", "required": true },
    { "key": "content", "name": "Content", "type": "text", "required": true, "max_bytes": 262144 },
    { "key": "content_format", "name": "Content Format", "type": "select", "required": true, "options": ["plain_text"] },
    { "key": "status", "name": "Status", "type": "select", "required": true, "options": ["draft", "active", "archived"] }
  ]
}