---
title: Cookbook
description: Best-practice workflow patterns with copy-paste code examples.
type: overview
---

# Cookbook



A curated collection of workflow patterns with clean, copy-paste code examples for real use cases.

## Common Patterns

* [**Saga**](/cookbook/common-patterns/saga) — Coordinate multi-step transactions with automatic rollback when a step fails
* [**Batching**](/cookbook/common-patterns/batching) — Process large collections in parallel batches with failure isolation
* [**Rate Limiting**](/cookbook/common-patterns/rate-limiting) — Handle 429 responses and transient failures with RetryableError and backoff
* [**Fan-Out**](/cookbook/common-patterns/fan-out) — Send to multiple channels in parallel with independent failure handling
* [**Scheduling**](/cookbook/common-patterns/scheduling) — Use durable sleep to schedule actions minutes, hours, or weeks ahead
* [**Idempotency**](/cookbook/common-patterns/idempotency) — Ensure side effects happen exactly once, even when steps retry
* [**Webhooks**](/cookbook/common-patterns/webhooks) — Receive HTTP callbacks from external services and process them durably
* [**Conditional Routing**](/cookbook/common-patterns/content-router) — Route payloads to different step handlers based on content
* [**Child Workflows**](/cookbook/common-patterns/child-workflows) — Spawn and orchestrate child workflows from a parent
* [**Distributed Abort Controller**](/cookbook/common-patterns/distributed-abort-controller) — Build a cross-process abort controller using workflow streams and hooks

## Agent Patterns

* [**Durable Agent**](/cookbook/agent-patterns/durable-agent) — Replace a stateless AI agent with one that survives crashes and retries tool calls
* [**Tool Streaming**](/cookbook/agent-patterns/tool-streaming) — Stream real-time progress updates from tools to the UI
* [**Human-in-the-Loop**](/cookbook/agent-patterns/human-in-the-loop) — Pause an agent for human approval, then resume based on the decision
* [**Tool Orchestration**](/cookbook/agent-patterns/tool-orchestration) — Choose between step-level and workflow-level tools, or combine both
* [**Stop Workflow**](/cookbook/agent-patterns/stop-workflow) — Gracefully cancel a running agent workflow using a hook signal

## Integrations

* [**AI SDK**](/cookbook/integrations/ai-sdk) — Use AI SDK model providers, tool calling, and streaming inside durable workflows
* [**Chat SDK**](/cookbook/integrations/chat-sdk) — Build durable chat sessions with workflow persistence and AI SDK chat primitives
* [**Sandbox**](/cookbook/integrations/sandbox) — Orchestrate Vercel Sandbox lifecycle inside durable workflows

## Advanced

* [**Serializable Steps**](/cookbook/advanced/serializable-steps) — Wrap non-serializable objects so they cross the workflow boundary
* [**Durable Objects**](/cookbook/advanced/durable-objects) — Model long-lived stateful entities as workflows
* [**Isomorphic Packages**](/cookbook/advanced/isomorphic-packages) — Publish packages that work inside and outside the workflow runtime
* [**Custom Serialization**](/cookbook/advanced/custom-serialization) — Make custom classes survive workflow serialization
* [**Publishing Libraries**](/cookbook/advanced/publishing-libraries) — Ship npm packages that export reusable workflow functions


## Sitemap
[Overview of all docs pages](/sitemap.md)