Building Effective Agents

The first thing anyone should read

Anthropic

July 17, 2026

About

Get the basics of AI agents down, from what they are to building your first one. It is a guide from Anthropic, made for people new to AI agents.

For people new to AI agents. If you have never built an agent, this is a good place to start.

Most guides bury you in theory. This one is short and tells you what to actually do, so keep it open while you build.

Tell an agent apart from a plain workflow, and know when to use each

See how agents use tools, memory, and steps

Build your first working agent

Walk away with something you can reuse

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