CLAUDE.md is the file Claude Code reads at the start of every session — your project's standing memory. Most people either skip it or bloat it. This builds a lean, high-signal one that actually changes how Claude behaves. Preview updates live.
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Your CLAUDE.md · save at repo root
Where it goes: save this as CLAUDE.md in your repo root — Claude Code loads it automatically at the start of every session. Put personal, cross-project rules in ~/.claude/CLAUDE.md instead. Keep it tight: it's spent from your context window every session, so durable facts only — no essays. Tip: run /init in a repo and Claude writes a first draft you can refine here.
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