Workflow Development Kit: Built-in Durability for Reliable Functions
Vercel introduced the Workflow Development Kit (WDK), an open-source TypeScript framework that makes durability a language-level concept. It enables functions to pause for extended periods, survive deployments and crashes, and resume execution exactly where they left off—eliminating the need to build separate message queues, retry logic, and persistence layers.
Building reliable software shouldn't require mastering distributed systems.
Yet for developers building AI agents or data pipelines, making async functions reliable typically requires message queues, retry logic, and persistence layers. Adding that infrastructure often takes longer than writing the actual business logic.
The is an open source TypeScript framework that makes durability a language-level concept. It runs on any framework, platform, and runtime. Functions can pause for minutes or months, survive deployments and crashes, and resume exactly where they stopped.Workflow Development Kit (WDK)
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