Deprecation Notice

Displays a prominent warning banner indicating a feature or API is no longer supported.

Surfaces

webgoogle-apps-script-webmcp-apps

Degraded on

Surface	Note
google-chat	Box styling lost, collapses into standard text with manual prefix.
email	Alert background colors and icons frequently drop out.

Live preview

⛔ Deprecated

→ Use new_component instead.

Fields

Field	Type
alternative	string. Recommended migration path or replacement feature.	required
removal_version	string. Optional version when the feature will be removed.	optional

Example payload

{
  "type": "deprecation_notice",
  "alternative": "new_component"
}

ARD catalog entry

{
  "identifier": "urn:air:a2uicatalog.ai:atom:deprecation_notice",
  "displayName": "Deprecation Notice",
  "type": "application/vnd.a2ui.atom+json",
  "url": "https://a2uicatalog.ai/atoms/deprecation_notice",
  "capabilities": [
    "web",
    "google-apps-script-web",
    "mcp-apps"
  ],
  "description": "Displays a prominent warning banner indicating a feature or API is no longer supported.",
  "representativeQueries": [
    "show a warning banner for deprecated features or unsupported APIs",
    "displays a prominent warning banner indicating a feature or api is no longer supported.",
    "render a deprecation notice"
  ]
}

← 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 →