feat: add sveltekit support

[adriandlam]

Add SvelteKit Integration Support

This PR adds SvelteKit support to Workflow DevKit, bringing it to feature parity with Next.js and Nitro integrations.

What's New

• New Package: @workflow/sveltekit with Vite plugin and builder
• Build Target: sveltekit added to CLI with SvelteKit-specific request adapters
• Documentation: New getting-started guide for SvelteKit

Usage

Add the SvelteKit workflowPlugin

// vite.config.ts
import { sveltekit } from '@sveltejs/kit/vite';
import { workflowPlugin } from 'workflow/sveltekit';

export default defineConfig({
  plugins: [sveltekit(), workflowPlugin()],
});

The plugin auto-generates SvelteKit route handlers at .well-known/workflow/v1/:

• flow/+server.js - Workflow execution
• step/+server.js - Step execution
• webhook/[token]/+server.js - Webhook resumption

Testing

• Added to CI test matrix
• Workbench includes E2E test workflows

[changeset-bot]

🦋 Changeset detected

Latest commit: 3ca91e3

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

This PR includes changesets to release 12 packages

Name	Type
@workflow/world-local	Patch
@workflow/sveltekit	Patch
@workflow/builders	Patch
workflow	Patch
@workflow/core	Patch
@workflow/cli	Patch
@workflow/world-postgres	Patch
@workflow/next	Patch
@workflow/nitro	Patch
@workflow/ai	Patch
@workflow/world-testing	Patch
@workflow/web-shared	Patch

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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	Preview	Comments	Updated (UTC)
example-nextjs-workflow-turbopack	Ready	Preview	Comment	Nov 4, 2025 5:04am
example-nextjs-workflow-webpack	Ready	Preview	Comment	Nov 4, 2025 5:04am
example-workflow	Ready	Preview	Comment	Nov 4, 2025 5:04am
workbench-express-workflow	Error			Nov 4, 2025 5:04am
workbench-nitro-workflow	Ready	Preview	Comment	Nov 4, 2025 5:04am
workbench-nuxt-workflow	Ready	Preview	Comment	Nov 4, 2025 5:04am
workbench-sveltekit-workflow	Ready	Preview	Comment	Nov 4, 2025 5:04am
workbench-vite-workflow	Ready	Preview	Comment	Nov 4, 2025 5:04am
workflow-docs	Ready	Preview	Comment	Nov 4, 2025 5:04am

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​@​sveltejs/​adapter-vercel@​6.1.1
	npm/​@​types/​fs-extra@​11.0.4
	npm/​@​sveltejs/​adapter-node@​5.4.0
	npm/​@​sveltejs/​kit@​2.48.4
	npm/​fs-extra@​11.3.2
	npm/​svelte@​5.43.2
	npm/​vite-plugin-devtools-json@​1.0.0
	npm/​svelte-check@​4.3.3

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