How I use Claude Code to refactor legacy code — without breaking everything

📰 Dev.to · brian austin

Learn how to refactor legacy code using Claude Code without introducing breaking changes

intermediate Published 9 Apr 2026

Action Steps

Identify legacy code that needs refactoring using code analysis tools
Run Claude Code to generate refactoring suggestions
Apply suggested changes and test thoroughly to ensure no breaking changes are introduced
Configure Claude Code settings to fine-tune refactoring recommendations
Compare refactored code with original code to verify improvements

Who Needs to Know This

Software engineers and developers can benefit from this technique to improve code quality and reduce technical debt

Key Insight

💡 Claude Code can help refactor legacy code safely and efficiently