I Analyzed 14 Real CLAUDE.md Files. Here's What Claude Code Users Actually Configure.

I built a tool that roasts your CLAUDE.md. So I fed it 14 real configs from real Claude Code users across GitHub, gists, and blog posts. Here's what I found. The Range Is Enormous On one end: HumanLayer keeps their global CLAUDE.md under 60 lines by design. Their reasoning: frontier LLMs handle ~150-200 instructions reliably. Claude Code's system prompt already uses ~50. So they add only what's universally applicable — and nothing more. On the other end: Affaan Mustafa (Anthropic hackathon winner, $15K prize) has 51 specialized subagents , 54 slash commands, and a three-agent adversarial security pipeline. His config spans multiple files with a dedicated .claude/rules/ directory for security, testing, git workflow, agents, and performance rules. Both approaches are deliberate. Neither is wrong. The 5 Patterns Everyone Uses After analyzing 14 configs from enterprise security firms (Trail of Bits), SaaS builders, indie developers, and AI specialists, five patterns appeared in nearly ever