Repository providing a single CLAUDE.md guideline file to improve Claude Code behavior, based on Andrej Karpathy’s analysis of common LLM coding errors.

It defines four principles—Think Before Coding, Simplicity First, Surgical Changes, and Goal-Driven Execution—to reduce wrong assumptions, overengineering, and unnecessary edits while enforcing test-driven, goal-based workflows. The guidelines can be installed as a Claude Code plugin or added directly to projects (including Cursor) and are intended to be combined with project-specific rules.