The Leaked 'Employee-Grade' CLAUDE.md: How to Use It Today

A leaked CLAUDE.md used by Anthropic employees reveals advanced directives for verification, context management, and anti-laziness. Here's the cleaned-up version you can use. The Technique — An Internal CLAUDE.md Leak A recent analysis of leaked Claude Code source material, shared by u/iamfakeguru on Reddit, revealed a significant detail: Anthropic employees appear to use a more powerful CLAUDE.md configuration, gated behind an internal USER_TYPE === 'ant' flag. This internal version reportedly enforces stricter verification, better context handling, and stronger anti-laziness rules compared to the default prompts regular users receive. The community has since refined this leaked document into a concise, actionable CLAUDE.md you can use right now. Why It Works — Understanding the Internal Overrides The power of this document lies in its explicit, mechanical overrides. It doesn't just ask Claude to "be better"; it forces specific behaviors that counteract known model limitations and sys