Ddd

A comprehensive guide to proven backend architecture patterns. Teaches Clean Architecture (Uncle Bob's layers), Hexagonal Architecture (Ports and Adapters), and Domain-Driven Design (DDD) tactical patterns with Python code examples for building maintainable, testable, and scalable systems.

This skill provides comprehensive guidance for software development following Clean Architecture and Domain-Driven Design principles. It covers code style rules, naming conventions, anti-patterns to avoid, and emphasizes a library-first approach where developers should leverage existing solutions before writing custom code.