Peter Wielander f7740b9535 fix(core): scope WORKFLOW_ASYNC_STEP_COMPLETED to turbo's first delivery
Carries the base branch's second review round into the stacked feature:
the sequential-replays arm of the deferCompletedWrite gate is retracted
for the same reason as the base's turbo waiver — the runtime env var
cannot prove the built flow trigger is actually serialized. Deferral now
engages only on turbo's first delivery, where no concurrent orchestrator
invocation can exist.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-17 13:20:09 -07:00
2025-10-23 12:07:52 +03:00
2025-10-23 12:07:52 +03:00
2025-10-23 12:07:52 +03:00
2026-02-05 16:19:16 -08:00
2025-10-23 12:07:52 +03:00
2025-10-23 12:07:52 +03:00

Workflow SDK logo

Workflow SDK

Vercel logo NPM version License Join the community on GitHub

Getting Started

The Workflow SDK lets you easily add durability, reliability, and observability to async JavaScript. Build apps and AI agents that can suspend, resume, and maintain state with ease.

Visit https://workflow-sdk.dev to view the full documentation.

Community

The Workflow SDK community can be found on GitHub Discussions, where you can ask questions, voice ideas, and share your projects with other people.

Contributing

Contributions to Workflow SDK are welcome and highly appreciated. Please use GitHub issues and discussions to collaborate with the team and wider community.

Author list

Workflow SDK was built by engineers at Vercel and the Open Source Community.

The initial core contributing engineers are:

The Workflow SDK logo was designed by Cecilio Ruiz @ceciliorz


Security

If you believe you have found a security vulnerability in Workflow SDK, we encourage you to responsibly disclose this and not open a public issue.

To participate in our Open Source Software Bug Bounty program, please email responsible.disclosure@vercel.com. We will add you to the program and provide further instructions for submitting your report.

S
Description
workflow: Creates durable, resumable workflows using Vercel's Workflow SDK. Use when building workflows that need to survive restarts, pause for external events, retry…; workflow-init: Install and configure Vercel Workflow SDK before it exists in node_modules. Use when the user asks to "install workflow", "set up workflow", "add durable…
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