Loading Skeleton

Live preview

[ loading_skeleton ]

A placeholder UI that shows the structure of content while it's loading, indicating active data fetching.

Surfaces

webgoogle-meet-stagegoogle-apps-script-webmcp-appsandroid

Fields

Field	Type	Required
shape	string The general shape of the content being loaded (e.g., "card", "list", "text_block").	required
lines	integer The number of lines of text to simulate in the skeleton.	required
has_image	boolean Indicates if the skeleton should include an image placeholder.	required

Example payload

{
  "type": "loading_skeleton",
  "shape": [
    {
      "type": "rect",
      "width": "100%",
      "height": "20px"
    },
    {
      "type": "rect",
      "width": "60%",
      "height": "20px"
    }
  ],
  "lines": 1,
  "has_image": true
}

ARD catalog entry

{
  "identifier": "urn:air:a2uicatalog.ai:atom:loading_skeleton",
  "displayName": "Loading Skeleton",
  "type": "application/vnd.a2ui.atom+json",
  "url": "https://a2uicatalog.ai/atoms/loading_skeleton/",
  "capabilities": [
    "web",
    "google-meet-stage",
    "google-apps-script-web",
    "mcp-apps",
    "android"
  ],
  "description": "A placeholder UI that shows the structure of content while it's loading, indicating active data fetching.",
  "representativeQueries": [
    "show a animated placeholder skeleton while content loads",
    "a placeholder ui that shows the structure of content while it's loading, indicating active data fetc",
    "render a loading skeleton"
  ]
}

← 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 a2ui/apps-script-surface/gas-wired-renderer
clasp push && clasp deploy

Full deploy guide →