📦 Open Source

Claude Code's Dirty Secret: .claudeignore Stops the Node_Modules Madness

Claude Code is dev magic—until it devours your node_modules and spits back suggestions touching your API keys. Enter .claudeignore, the overlooked fix rewriting AI context hygiene.

Terminal output showing Claude Code file list before and after .claudeignore

⚡ Key Takeaways

  • Add .claudeignore to block node_modules, .env, and logs from Claude Code's context for sharper AI responses.
  • Verify with `claude --list-files`; pair with CLAUDE.md for full workflow control.
  • .claudeignore mirrors .gitignore's impact—essential hygiene for AI coding tools.
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Originally reported by dev.to

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