Build durable, resumable workflows that survive restarts, deployments, and failures using TypeScript directives.
| "use workflow" | Orchestrates steps, sleeps, suspends | Deterministic: No side effects, no Node.js modules, no global fetch | | "use step" | Contains business logic, I/O, side effects | Runs on separate request: Auto-retries on failure |
Workflow DevKit uses event sourcing - state changes are stored as events and replayed to reconstruct state. Workflows must be deterministic so replays produce identical step sequences. Steps run on separate requests, so data passes by value (mutations don't affect workflow variables).
Créez des flux de travail durables avec Vercel Workflow DevKit en utilisant les directives « use workflow » et « use step ». À utiliser pour les tâches de longue durée, les tâches en arrière-plan, les agents IA, les webhooks, les tâches planifiées, les tentatives et l'orchestration des flux de travail. Prend en charge Next.js, Vite, Astro, Express, Fastify, Hono, Nitro, Nuxt, SvelteKit. Source : jakerains/agentskills.