[tmilewski]

Description

Applications that already know a user's Slack workspace cannot pass it through Clerk's OAuth APIs. Add optional slackTeamId to Slack sign-in and sign-up inputs for low-level, redirect, popup, and unified SSO flows.

The SDK serializes the value as slack_team_id. Reused sign-in attempts prepare the current request's hint on the existing attempt, so a new value is validated and a resolved Protect challenge remains bound to that attempt.

Checklist

• pnpm test runs as expected.
• pnpm build runs as expected.
• JSDoc comments have been added for the public parameter.
• Documentation has been updated in the companion docs change.

Type of change

• New feature

Part of CORE-3802

[changeset-bot]

🦋 Changeset detected

Latest commit: 449c40b

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 23 packages

Name	Type
@clerk/clerk-js	Minor
@clerk/shared	Minor
@clerk/chrome-extension	Patch
@clerk/electron	Patch
@clerk/expo	Patch
@clerk/mosaic	Patch
@clerk/astro	Patch
@clerk/backend	Patch
@clerk/expo-passkeys	Patch
@clerk/express	Patch
@clerk/fastify	Patch
@clerk/hono	Patch
@clerk/localizations	Patch
@clerk/msw	Patch
@clerk/nextjs	Patch
@clerk/nuxt	Patch
@clerk/react-router	Patch
@clerk/react	Patch
@clerk/swingset	Patch
@clerk/tanstack-react-start	Patch
@clerk/testing	Patch
@clerk/ui	Patch
@clerk/vue	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated
clerk-js-sandbox	Ready	Preview	Oct 25, 2026 11:56pm UTC
swingset	Ready	Preview	Oct 25, 2026 11:56pm UTC

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[pkg-pr-new]

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commit: 5de0894