Workflow DevKit

Workflow DevKit (use workflow) provides a developer-first toolkit to make async JavaScript and TypeScript functions durable, resumable, and observable. It compiles reliability primitives into code so teams can replace ad-hoc queues and cron jobs with declarative workflows that persist state, pause and resume, and automatically retry failed steps. The project is open-source, portable, and designed to run locally, in Docker, on Vercel, or any Node-compatible environment.

• Durable workflows — Persist workflow state to allow long-running processes to suspend and resume without external queue plumbing; get started by annotating your function with the workflow directive and writing standard async code.
• Declarative API — Use a simple SDK and familiar JavaScript/TypeScript syntax to define steps and pauses; install via npm and export workflow functions to run them anywhere.
• Observability — Capture traces, logs, and metrics for every run so you can inspect, pause, replay, and time-travel through workflow executions for debugging and auditing.
• Automatic retries and reliability — Replace custom retry logic with built-in retry semantics and failure handling directives to reduce operational complexity.
• Templates and examples — Includes templates (e.g., Slack bot, booking app, image search) and examples to jumpstart production usage and agent workflows.

To get started, install the SDK with npm, create workflow functions using the provided directives, and run them locally or in your cloud environment. Use the included templates to see common patterns (email flows, agent orchestration, multi-day subscriptions) and add integrations as needed.