> For software developers building with AI

Build AI agents that work in production.

Practical tutorials, in-depth guides and starter kits that take you from your first tool call to agents you can trust with real users. Start free. Go deeper when you're ready.

Start learning free Browse the library

tutorials/your-first-agent/step-04.ts

1// Step 4 — give the agent tools, then a budget.2// Unbounded loops are how demos become bills.34const agent = createAgent({5  tools: [searchDocs, openTicket],6  maxSteps: 8,7});8await agent.run(task);

What you'll learn

The whole agent stack, end to end

Whether you've never shipped an LLM feature or you're already running agents in production, there's a next step for you. Every lesson is hands-on: you write the code, run it, and break it.

> 01

Foundations

Prompting, tool calling and structured output: the building blocks every agent is made of, and how they fail.

> 02

Agent design

Agent loops, planning, multi-agent setups, and knowing when a simple workflow beats an agent.

> 03

Tools & integrations

Designing tools a model can use well, connecting APIs and MCP servers, and keeping permissions tight.

> 04

Context & memory

Retrieval, context engineering and memory that holds up as conversations and codebases grow.

> 05

Evals & reliability

Testing non-deterministic systems: evals, guardrails, tracing, and catching regressions before users do.

> 06

Shipping to production

Latency, cost, security and deployment: everything between a working prototype and a product.

The library

Start free, go further with paid resources

The fundamentals are free for everyone. When you want to move faster, our guides and starter kits give you the depth and the code to do it.

Tutorials

Free

Learn by building

Step-by-step builds you follow at the keyboard. Each one starts from an empty file and ends with an agent that runs.

Guides

Paid

Go deep on one problem

Long-form playbooks on the hard parts, like evals, memory and production hardening, with the trade-offs explained.

Starter kits