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Building an Agent (framework docs)

Function-calling agents with LlamaIndex

LlamaIndex

July 17, 2026

About

Learn to design, build, and ship AI agents that hold up in production. It is a docs from LlamaIndex, made for operators and engineers building agents.

Who is it for

For operators and engineers building agents. If you have never built an agent, this is a good place to start.

Short and practical

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

What you learn

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Design an agent with tools, memory, and control
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Test and debug it before it ships
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Ship a workflow that runs on its own
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Walk away with something you can reuse
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