Build a Basic AI Agent From Scratch

2026 is without a doubt the year of AI agents. Since the release of Claude Code, the power of these AI agents has become undeniable. Claude Code, Codex, OpenCode are a must for many developers nowadays. OpenClaw and Hermes are becoming many people’s AI assistants. Agents are also breaking into knowledge work with tools like Cowork. If you follow me in this series of posts, we will build a basic AI agent from scratch in order to better understand how these agents actually work. For the purpose of actually un