# Diagram

SVG architecture diagram hosted at a public URL

## Surfaces

web, google-meet-stage, pdf, google-apps-script-web, mcp-apps

## Fields

| Field | Type |
|---|---|
| url | string |
| caption | string (optional) |

## Example payload

```json
{
  "type": "diagram",
  "url": "https://example.com"
}
```

Live page: https://a2uicatalog.ai/atoms/diagram/
Full field contract: https://a2uicatalog.ai/spec.json