Claude Code .claudeignore: stop leaking secrets and node_modules into your context

Claude Code.claudeignore: stop leaking secrets and node_modules into your context If you've ever watched Claude Code read through thousands of lines of node_modules or seen it suggest changes to your.en file, you've hit one of the most overlooked configuration problems in Claude Code setups. The fix is a.claudeignore file - and most developers don't know it exists. What Claude Code reads by default When you run Claude Code in a project directory, it can access everything in that directory.