Is this skill specific to a certain programming language?

While the examples provided are in Python, the architectural principles and patterns are language-agnostic and can be applied to any backend development environment.

How does this help with unit testing?

By separating business logic from infrastructure using ports and interfaces, it allows you to easily swap real dependencies (like databases) for mocks or stubs during testing.

What architectures does this skill support?

It specifically supports Clean Architecture, Hexagonal Architecture (also known as Ports and Adapters), and Domain-Driven Design (DDD) principles.

Can I use this for refactoring existing projects?

Yes, it provides patterns specifically for migrating from tightly coupled codebases to modular, decoupled architectures for better long-term maintainability.

What are the benefits of the Hexagonal Architecture pattern?

It allows your application to be equally driven by users, programs, automated tests, or batch scripts, and to be developed and tested in isolation from its eventual run-time devices and databases.

Backend Architecture Patterns

Name: Backend Architecture Patterns
Author: pur3v4d3r

bypur3v4d3r

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API Development

Implement industry-standard backend architectures including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design for maintainable systems.

About

This skill empowers Claude to architect and refactor complex backend systems using proven structural patterns like Clean Architecture, Hexagonal Architecture (Ports and Adapters), and Domain-Driven Design (DDD). It provides standardized directory structures, implementation patterns for entities and use cases, and clear guidelines for decoupling business logic from infrastructure concerns. Whether you are building a new system from scratch or refactoring a legacy monolith, this skill ensures your codebase remains testable, scalable, and technology-agnostic by enforcing inward-pointing dependency rules.

Key Features

Standardized Clean Architecture directory structure templates
Hexagonal Architecture implementation using Ports and Adapters
Best practices for creating highly testable and mockable backend services
1 GitHub stars
Domain-Driven Design (DDD) tactical patterns for entities and value objects
Guidance on decoupling core business logic from frameworks and databases

Use Cases

Designing a technology-agnostic core for a new microservice
Refactoring a tightly-coupled monolithic application into a modular architecture
Establishing consistent architectural standards and ubiquitous language across a team

About

Key Features

Standardized Clean Architecture directory structure templates
Hexagonal Architecture implementation using Ports and Adapters
Best practices for creating highly testable and mockable backend services
1 GitHub stars
Domain-Driven Design (DDD) tactical patterns for entities and value objects
Guidance on decoupling core business logic from frameworks and databases

Use Cases

Designing a technology-agnostic core for a new microservice
Refactoring a tightly-coupled monolithic application into a modular architecture
Establishing consistent architectural standards and ubiquitous language across a team