Loading Skeleton — A2UI Atomic Catalog

Fields

Field	Type
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",
    "meet-stage",
    "apps-script-web"
  ],
  "description": "A placeholder UI that shows the structure of content while it's loading,",
  "representativeQueries": [
    "show a animated placeholder skeleton while content loads indicating active data fetching",
    "a placeholder ui that shows the structure of content while it's loading,",
    "render a loading skeleton"
  ]
}

Deploy your own renderer

The renderer is open source. 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 →