How does this skill improve code testability?

By implementing ports and adapters, it allows you to decouple business logic from external dependencies, making it easy to mock databases or APIs during testing.

How does this help with microservices decomposition?

It utilizes DDD principles like Bounded Contexts to help define clear boundaries, which is essential for successfully splitting a system into microservices.

Can I use this for existing backend projects?

Yes, the skill is designed to assist with refactoring tightly coupled applications into loosely coupled, more maintainable systems.

Is this architecture pattern skill language-specific?

While many examples provided are in Python, the architectural principles and directory structures are applicable to any backend language like Go, Java, or Node.js.

Backend Architecture Patterns

Name: Backend Architecture Patterns
Author: HermeticOrmus

byHermeticOrmus

API Development

Implements professional backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design for scalable systems.

About

This skill empowers developers to build maintainable and testable backend systems by providing standardized implementation patterns for Clean Architecture, Hexagonal Architecture (Ports and Adapters), and Domain-Driven Design (DDD). It bridges the gap between high-level architectural theory and practical code execution, offering guidance on directory structures, dependency inversion, and the separation of core business logic from infrastructure concerns. Whether you are bootstrapping a new microservice or refactoring a legacy monolith, this skill ensures your codebase remains technology-agnostic and easy to evolve.

Key Features

Standardized directory structures for modular backend organization
Clean Architecture templates for framework-independent business logic
0 GitHub stars
Domain-Driven Design (DDD) tactical patterns including Entities and Value Objects
Dependency inversion strategies to enhance unit testing and mockability
Hexagonal Architecture patterns for swappable infrastructure adapters

Use Cases

Refactoring monolithic applications into decoupled, maintainable service architectures
Designing new backend services that require high testability and strict isolation
Establishing consistent architectural standards and ubiquitous language across engineering teams

About

Key Features

Standardized directory structures for modular backend organization
Clean Architecture templates for framework-independent business logic
0 GitHub stars
Domain-Driven Design (DDD) tactical patterns including Entities and Value Objects
Dependency inversion strategies to enhance unit testing and mockability
Hexagonal Architecture patterns for swappable infrastructure adapters

Use Cases

Refactoring monolithic applications into decoupled, maintainable service architectures
Designing new backend services that require high testability and strict isolation
Establishing consistent architectural standards and ubiquitous language across engineering teams