Build agents from scratch
Write an agent in plain code before you touch a framework, so you know exactly what every framework does for you.
- 01Agent design
- Claude
The anatomy of an agent: model, tools, memory, and the loop that ties them together.
- 02Tool calling & the agent loop
- Python
Code the loop by hand: the model calls tools, reads results, and decides when it's done.
- 03Agent frameworks
- LangGraph
- CrewAI
- Agno
When to use LangGraph, LangChain, CrewAI or Agno, and what each one is really good at.
