Hub

Full-screen deck navigation container: subjects as a coloured nav rail, each holding slides of atom blocks. The envelope for hub/deck payloads.

Surfaces

google-apps-script-webmcp-apps

Fields

Field	Type
subjects	array (required) of {id, label, color (hex), slides: [{id, label, blocks: [atom blocks]}]}	required
background	string (optional, page hex, default "#0f172a")	optional
nav_background	string (optional, nav rail hex, defaults to background)	optional

Example payload

{
  "type": "hub",
  "subjects": []
}

ARD catalog entry

{
  "identifier": "urn:air:a2uicatalog.ai:atom:hub",
  "displayName": "Hub",
  "type": "application/vnd.a2ui.atom+json",
  "url": "https://a2uicatalog.ai/atoms/hub",
  "capabilities": [
    "google-apps-script-web",
    "mcp-apps"
  ],
  "description": "Full-screen deck navigation container: subjects as a coloured nav rail, each holding slides of atom blocks. The envelope for hub/deck payloads.",
  "representativeQueries": [
    "show a deck navigation shell with subjects and slides",
    "full-screen deck navigation container: subjects as a coloured nav rail, each holding slides of atom",
    "render a hub"
  ]
}

← Full ARD catalog

Deploy your own Google Apps Script renderer

The renderer is an open-source Google Apps Script web app. Deploy your own instance in 4 commands — you own the URL, no dependency on the demo endpoint.

git clone https://github.com/a2uicatalog/a2ui
cd apps-script-surface/gas-schema-renderer
clasp push && clasp deploy

Full deploy guide →