Claude Code's Secret Weapon: Access Multiple Directories in One Session

Ever built the same feature twice in different projects? There's a better way. In this tutorial, I'll show you how to use Claude Code's additional directories feature to give it access to multiple projects simultaneously, so it can learn from your existing implementations and apply that knowledge to new ones. I walk through a real-world example: migrating a manual podcast listing (markdown files) to an automated Transistor API integration. Instead of asking Claude to research the Transistor API from scratch, I pointed it to my Spring Office Hours website where I'd already built this exact feature. The result? A working implementation in under 6 minutes. What You'll Learn: ✅ How to configure additional directories in Claude Code's settings ✅ Using plan mode to design migration strategies before writing code ✅ Why context from existing projects beats documentation research ✅ Clearing context effectively for better performance on new tasks ✅ Practical workflow tips including voice dictation for prompts Prerequisites • Basic familiarity with Claude Code • Understanding of web development concepts • A project with features you want to replicate Resources 📚 Claude Code Documentation: https://code.claude.com/docs/en/settings 🌐 Fundamentals of Software Engineering: https://fundamentalsofswe.com/ 🎙️ Spring Office Hours: https://www.springofficehours.io Key Takeaways Instead of asking Claude to research APIs from scratch, leverage your existing implementations as templates. Configure additional directories in your .claude/settings.local.json file, use plan mode to review the strategy before execution, and clear context before starting implementation for optimal performance. Subscribe for more Claude Code tutorials and AI-powered development tips! 👋🏻Connect with me: Website: https://www.danvega.dev Twitter: https://twitter.com/therealdanvega Github: https://github.com/danvega LinkedIn: https://www.linkedin.com/in/danvega Newsletter: https://www.danvega.dev/newslett