A teaching repository for building a high-completion coding-agent harness from scratch, focusing on core mechanisms like loops, tools, planning, and context control.
Learn Claude Code is a teaching repository that guides implementers through building a high-completion coding-agent harness from scratch. It focuses on core mechanisms like the agent loop, tools, planning, and context control, which are essential for creating effective AI coding assistants. The project strips away production details to teach the fundamental design backbone, enabling learners to understand and rebuild similar systems independently.
Developers and implementers with basic Python knowledge who are new to agent systems and want to learn how to build coding-agent harnesses from the ground up.
It provides a clean, structured learning path that explains concepts before implementation, avoiding overwhelming learners with irrelevant production details. The unique focus on core mechanisms rather than product-specific features allows for a deeper understanding of what makes agent systems work effectively.
Bash is all you need - A nano claude code–like 「agent harness」, built from 0 to 1
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Explains key concepts like the agent loop and tool use before implementation, adhering to the teaching philosophy of 'explain a concept before using it' to ensure deep understanding.
Provides a recommended reading order with four stages, from single-agent core to advanced features like teams and MCP, guiding learners systematically through the material as outlined in the docs.
Includes runnable Python code per chapter, such as agents/s01_agent_loop.py, allowing hands-on practice with each mechanism and reinforcing learning through direct experimentation.
Offers documentation in English, Chinese, and Japanese, with Chinese being the most complete and frequently updated, catering to a global audience while acknowledging language disparities.
Deliberately avoids teaching packaging, cross-platform compatibility, and enterprise integrations, making it insufficient for direct production use without significant additional development work.
Chinese docs are the canonical version, so English and Japanese readers might encounter gaps or delays in updates, as admitted in the language status section, potentially hindering non-Chinese speakers.
Requires configuring API keys, environment variables, and navigating multiple documentation files, which can be a barrier for those expecting a plug-and-play educational tool.