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NO.
#ce3f2a59
Topic
INFRA & SAAS
Source
vercel_blog
Published
2026-05-20 00:00:00
Importance
★ 6/10 — radar 60
`Vercel Chat SDK` Adds `callbackUrl` for Card Buttons and Modals
FIG-0031:1

`Vercel Chat SDK` Adds `callbackUrl` for Card Buttons and Modals

Agent runs can now pause and resume from UI actions. Useful for approval flows in Slack or Teams without extra glue code.

[ KEY POINTS ]
  1. callbackUrl sends button-click or form-submit payloads to your endpoint, so workflows can resume from external UI events.
  2. Cards need a workflow webhook URL wired into each button’s callbackUrl; modals include submitted form data in the payload.
  3. Button callbacks work on most official-adapter platforms, while modal callbacks are limited to Slack and Teams for now.
Originalvercel.com/changelog/chat-sdk-now-supports-callback-urls-on-buttons-and-modalsRead original →

// related