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Karpathy's 4 CLAUDE.md rules cut Claude mistakes from 41% to 11%. After 30 codebases, I added 8 more
Karpathy's 4 CLAUDE.md rules cut Claude mistakes from 41% to 11%. After 30 codebases, I added 8 more In late January 2026, Andrej Karpathy posted a thread complaining about how Claude writes code. Three failure modes: si








