Labelled group of radio buttons for single-option selection. Each option has a value, visible label, and optional description.
| Surface | Note |
|---|---|
| google-meet-stage | Radio selection renders correctly; value capture requires stage-level routing |
| Field | Type | |
|---|---|---|
| label | string. Group label. | optional |
| name | string. Field identifier. | required |
| options | {'type': 'array', 'description': 'List of {value, label, description?} entries.'} | required |
| default_value | string. Pre-selected option value. `selected_value` is accepted as a synonym — the renderer read only that spelling while this file documented only this one, so the documented prop pre-selected nothing until 2026-08-14. | optional |
| rules | array of strings. e.g. ['required']. | optional |
| wired | Carries `onChange` in the wired dialect, emitting the CHECKED option's value, and accepts a `value` wire that checks the matching option. The binding DELEGATES over the group rather than reading the first input, so N elements behave as one control. This is the single-select alternative to combobox for the case a dropdown gets wrong: few options, on a phone, where a dropdown costs two taps and a modal to answer a three-way question. | required |
{
"type": "form_radio_group",
"name": "Form Radio Group",
"options": [
{
"label": "Option A",
"value": "a"
},
{
"label": "Option B",
"value": "b"
},
{
"label": "Option C",
"value": "c"
}
],
"wired": "Wired"
}{
"identifier": "urn:air:a2uicatalog.ai:atom:form_radio_group",
"displayName": "Form Radio Group",
"type": "application/vnd.a2ui.atom+json",
"url": "https://a2uicatalog.ai/atoms/form_radio_group",
"capabilities": [
"web",
"google-meet-stage",
"google-apps-script-web",
"mcp-apps"
],
"description": "Labelled group of radio buttons for single-option selection. Each option has a value, visible label, and optional description.",
"representativeQueries": [
"show a radio button group for single-option selection",
"labelled group of radio buttons for single-option selection. each option has a value, visible label,",
"render a form radio group"
]
}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