Bunzo voice kiosk

A static page that shows a voice ordering kiosk for Bunzo, an imaginary burger chain. The customer taps once and talks. The screen shows each item, its options and the running total while the agent takes the order.

Live at https://aistra-labs.github.io/kiosk-voice-demo/ (GitHub Pages, main branch, root folder).

How it works

• The agent runs on DeepTalk: Bunzo Kiosk - Voice Ordering (Demo) on the dev box. The page loads that agent's voice widget (Voice, Inline), keeps the widget's own panel hidden, and drives it through window.DeepTalkWidget.
• The agent changes the order only through tools. DeepTalk sends every tool call as a live event on the widget's signaling socket. assets/js/kiosk.js reads those events and draws the screen.
• The HTTP tools call static JSON files in api/ on this site, so no server is needed. An unknown item id returns 404, and the agent tries again with a valid id.
• Under the hood (bottom left) shows the live events: what the customer said, each tool call with its arguments, voice-to-voice latency and first-byte times.
• GSAP 3.13 runs the motion. The page still works without it, and it skips motion for visitors who prefer reduced motion.

Tool the agent calls	What the screen does
add_item	Adds an order line and shows the item with its options
update_item	Changes size, flavor, extras, combo, combo drink or quantity
remove_item	Removes the line
show_menu	Shows a menu category
safe_calculator	Highlights the total before the read-back
place_order	Shows the order number. The agent says goodbye and the call ends
end_conversation	Ends without an order

Updating

• Agent behaviour: change and publish the agent in DeepTalk. The page uses the published version on the next call.
• Menu: edit menu.json, run python3 scripts/build_api.py, and commit. Then paste agent/menu-prompt.md into the MENU section of the agent's global prompt and publish the agent.
• Embed token: if the widget token is regenerated, update EMBED_TOKEN in assets/js/kiosk.js. The widget's Allowed Domains must include aistra-labs.github.io.
• Testing without a call: open the page with ?debug=1. window.BunzoKiosk.event({type, payload}) replays a live event.

Notes

• Bunzo, its menu and its prices are made up.
• Icons: Microsoft Fluent Emoji, MIT License. See THIRD-PARTY-NOTICES.md.