Karpathy Guidelines

Behavioral guidelines to reduce common LLM coding mistakes, derived from Andrej Karpathy's observations on LLM coding pitfalls.

Tradeoff: These guidelines bias toward caution over speed. For trivial tasks, use judgment.

When to Use This Skill

• Use when writing, reviewing, or refactoring code with an LLM.
• Use when a change needs to stay surgical and avoid speculative abstractions.
• Use when assumptions, tradeoffs, and verification criteria should be made explicit.
• Use when code has become overcomplicated and needs to be simplified.

1. Think Before Coding

Don't assume. Don't hide confusion. Surface tradeoffs.