Claude Code "--add-dir" Arguement

Just discovered an incredibly powerful feature: the “--add-dir” flag that lets Claude Code treat multiple repositories as a single codebase. This is revolutionary for full-stack workflows.

Why this matters:

✨ Claude Code can seamlessly work across your frontend and backend repos simultaneously
✨ Create UI components in the frontend while generating the matching API endpoints in your backend
✨ Ensure perfect synchronization between client and server code
✨ No more context switching between different Claude Code sessions

Example:

cd my-frontend
claude --add-dir ../my-backend

Now Claude has full visibility across both codebases and can make coordinated changes that keep everything in sync. It's like having a senior full-stack developer who never loses track of the bigger picture.

🔗 Check out my detailed guide on additional directories: https://www.claude-code-training.com/cookbook/additional-directories

Exciting announcement: I'm now offering Claude Code training. Schedule training for you or your team.

🔗 Explore the full training site: https://www.claude-code-training.com/