architecture-patterns

Hexagonal Architecture improves testability by using ports and adapters to isolate application logic. This approach defines clear interface contracts, ensuring core business logic remains independent of external dependencies and easily replaceable.

Refactoring a legacy monolith into clean architecture involves mapping current project structures to suitable patterns. This skill provides playbooks to establish clear boundaries and standardize architectural decisions during the migration process.

You need ports and adapters in backend architecture when replacing external dependencies or improving testability. This pattern isolates core logic from infrastructure, making components easily replaceable and simplifying integration testing.

Clean Architecture and Hexagonal Architecture both enforce boundaries, but Hexagonal explicitly uses ports and adapters for dependency isolation. Choosing depends on whether your focus is on layer dependencies or strict infrastructure replaceability.