A single CLAUDE.md file with battle-tested rules that dramatically
improve Claude Code output quality.
Key insight: Anthropic engineers found that CLAUDE.md files over 200 lines
actually degrade performance. This file stays lean while covering
thinking, safety, quality, and output rules.
https://github.com/0rnot/god-mode-claude
Also works as a starting point for .cursorrules or other AI coding tools.
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