A visual attention primitive that emits three concentric ring pulses outward from a centre point using staggered CSS @keyframes. Each ring animates independently with a 1-second delay offset, creating a continuous sonar effect. Four named variants map to semantic colours. No JavaScript required.
| Surface | Note |
|---|---|
| Renders as a static coloured circle without ring animation | |
| googlechat | CSS animation not supported; renders as a plain coloured dot |
| Field | Type | |
|---|---|---|
| variant | "critical" | "success" | "info" | "warning" (optional, default "critical") | optional |
| active | bool. If false renders as a static dot. Default true. | optional |
| label | string. Short text label centred in the pulse ring. | optional |
| size | "sm" | "md" | "lg" (optional, default "md"). Controls ring diameter. | optional |
| body | string. Caption text below the pulse ring. | optional |
{
"type": "sonar_pulse"
}{
"identifier": "urn:air:a2uicatalog.ai:atom:sonar_pulse",
"displayName": "Sonar Pulse",
"type": "application/vnd.a2ui.atom+json",
"url": "https://a2uicatalog.ai/atoms/sonar_pulse",
"capabilities": [
"web",
"meet-stage",
"gas-sidebar",
"apps-script-web"
],
"description": "A visual attention primitive that emits three concentric ring pulses outward from a centre point using staggered CSS @keyframes. Each ring animates independently with a 1-second delay offset, creating a continuous sonar effect. Four named variants map to semantic colours. No JavaScript required.",
"representativeQueries": [
"show a CSS concentric ring pulse animation for attention signalling",
"a visual attention primitive that emits three concentric ring pulses outward from a centre point usi",
"render a sonar pulse"
]
}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