Caution Block

Renders a high-visibility callout box warning readers about potential pitfalls or destructive actions.

Surfaces

webgoogle-apps-script-webmcp-apps

Degraded on

Surface	Note
google-chat	Collapses into plain unbordered body copy sentences.
email	Accent borders and caution colors stripped by simple processors.

Live preview

⚠️ Caution

Fields

Field	Type
message	string. The warning content.	required

Example payload

{
  "type": "caution_block",
  "message": "Your action was completed successfully."
}

ARD catalog entry

{
  "identifier": "urn:air:a2uicatalog.ai:atom:caution_block",
  "displayName": "Caution Block",
  "type": "application/vnd.a2ui.atom+json",
  "url": "https://a2uicatalog.ai/atoms/caution_block",
  "capabilities": [
    "web",
    "google-apps-script-web",
    "mcp-apps"
  ],
  "description": "Renders a high-visibility callout box warning readers about potential pitfalls or destructive actions.",
  "representativeQueries": [
    "show a highlight dangerous pitfalls or critical destructive actions",
    "renders a high-visibility callout box warning readers about potential pitfalls or destructive action",
    "render a caution block"
  ]
}

← 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 →