Breadcrumb

A navigation aid indicating the user's current location within a hierarchical

Surfaces

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

Degraded on

Surface	Note
google-chat	Renders as a series of linked text elements without visual separators or interactive styling.
email	Renders as a simple list of text links, losing interactive styling and visual separators.
pdf	Renders as a simple list of text links, losing interactive styling and visual separators.

Live preview

Fields

Field	Type
items	list of {label: string, url: string, is_current: boolean}	required

Example payload

{
  "type": "breadcrumb",
  "items": true
}

ARD catalog entry

{
  "identifier": "urn:air:a2uicatalog.ai:atom:breadcrumb",
  "displayName": "Breadcrumb",
  "type": "application/vnd.a2ui.atom+json",
  "url": "https://a2uicatalog.ai/atoms/breadcrumb",
  "capabilities": [
    "web",
    "google-meet-stage",
    "google-apps-script-web",
    "mcp-apps"
  ],
  "description": "A navigation aid indicating the user's current location within a hierarchical",
  "representativeQueries": [
    "show a navigation breadcrumb trail structure",
    "a navigation aid indicating the user's current location within a hierarchical",
    "render a breadcrumb"
  ]
}

← 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 →