{
  "title": "Build Generative UI",
  "icon": "lucide/Paintbrush",
  "pages": [
    {
      "title": "Controlled",
      "icon": "lucide/Component",
      "defaultOpen": true,
      "pages": ["tool-based", "tool-rendering", "state-rendering"]
    },
    {
      "title": "Declarative",
      "icon": "lucide/FileJson",
      "defaultOpen": true,
      "pages": ["...a2ui"]
    },
    {
      "title": "Open-Ended",
      "icon": "lucide/Globe",
      "defaultOpen": true,
      "pages": ["mcp-apps"]
    }
  ]
}