I don't know if you'll be interested, but there is an excellent book on the topic: Build an AI Agent (From Scratch), by Jungjun Hur and Younghee Song (Manning Publication).
By chapter four you have a minimal working codebase in python. Later chapters add out features like tool calling, planning, and reflection.
By chapter four you have a minimal working codebase in python. Later chapters add out features like tool calling, planning, and reflection.