How do you keep AI-generated code reusable as your app grows?

When vibe coding, it’s easy to ask AI to add a new feature and end up with similar logic repeated across multiple components

That works at first, but later even a small change can mean editing the same logic in several places

One approach is to ask AI to check for duplicate logic and extract shared functions or components before adding more features

For developers using AI coding tools, what works best for you?

Do you ask AI to refactor after every feature, run a linter, or use another method to keep the codebase maintainable?