Clean Architecture Patterns

What it does

This skill provides guidance and code examples for implementing Clean Architecture patterns in software development. It helps structure applications with a focus on testability, maintainability, and independence from frameworks or databases. The core principles involve separating concerns into layers (Entities, Use Cases, Interface Adapters, Frameworks & Drivers) to improve overall system design.

When to use it

• Refactoring legacy code: To introduce structure and testability to existing monolithic applications.
• Designing new microservices: To ensure each service is independent and easily replaceable.
• Improving test coverage: Clean Architecture promotes a layered approach that makes unit testing easier.
• Reducing technical debt: By establishing clear boundaries between layers, future changes become less risky.

Key capabilities

• Layered architecture design principles
• Dependency rule enforcement (inner layers know nothing about outer layers)
• Use Case implementation guidance
• Interface Adapter patterns for data transformation
• Framework and Driver layer isolation

Example prompts

• "Explain how to implement the Entity layer in a Clean Architecture application."
• "Give me an example of a Use Case class that handles user authentication."
• "How can I isolate my database access logic using Interface Adapters?"

Tips & gotchas

This skill assumes some familiarity with software design principles. While it promotes independence from frameworks, understanding basic programming concepts is necessary to apply the patterns effectively.