Building an AI Agent from scratch. Things will break. That’s part of the plan.
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Updated
Feb 2, 2026 - Python
Building an AI Agent from scratch. Things will break. That’s part of the plan.
A complete AI agent in ~200 lines of Python. No frameworks. Learn how LLM agents actually work.
Companion code for "Building AI Agents from First Principles": build a working coding agent from scratch in plain Python, one mechanism per episode, from a bare while loop to multi-agent orchestration. No frameworks, any OpenAI-compatible model.
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