A complete AI agent in ~200 lines of Python. No frameworks. Learn how LLM agents actually work.
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Updated
Jun 14, 2026 - Python
A complete AI agent in ~200 lines of Python. No frameworks. Learn how LLM agents actually work.
Building an AI Agent from scratch. Things will break. That’s part of the plan.
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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