Add a2ui-oat to Community Renderers

a2ui-oat is a lightweight, framework-free A2UI renderer for the web, built on Oat CSS semantic styling.

What it provides

• 37 catalog components — all 16 basic catalog components plus 21 Oat-native extensions (tables, pagination, progress, meter, skeleton loaders, toasts, tooltips, alerts, breadcrumbs, sidebars, accordions, switches, badges, avatars, video, audio, grid, dropdown, autocomplete)
• 22 registered client-side functions — data (fetchPage, fetchAndAppend, subscribeSSE, subscribeWebSocket), navigation (openUrl, navigateTo), UI (showToast, debounce), formatting (formatDate, formatNumber, formatString, formatCurrency, pluralize), logic (and, or, not), validation (required, regex, length, numeric, email)
• ~13KB total client footprint — Oat CSS + JS + companion libraries, minified and gzipped
• Zero framework dependencies — no React, Angular, Lit, or build tooling required
• Custom catalog with theme support (7 properties mapped to CSS custom properties)
• @a2ui/web-lib integration via registerWithWebLib() one-call setup

Why this fills a gap

Every existing web renderer in the registry targets a framework (React, Lit, Angular). a2ui-oat is the first framework-free option — deploy via CDN include or npm install, no build step required. This makes it the lowest-friction path for agents that need to render A2UI on the web.

Links

• GitHub: https://github.com/MisterTK/a2ui-oat
• npm: https://www.npmjs.com/package/a2ui-oat
• Live demo: https://mistertk.github.io/a2ui-oat/
• Architecture doc: https://github.com/MisterTK/a2ui-oat/blob/main/docs/architecture.md
• Catalog validation: npm install a2ui-oat && npm run validate (16/16 checks pass)

Spec version

v0.9 only. Uses createSurface, updateComponents, updateDataModel message format with custom catalog support.

License

MIT