Can I use this for existing projects?

Yes, it is ideal for refactoring legacy codebases to improve testability and reduce coupling between business logic and infrastructure frameworks.

Is this skill language-specific?

While the logic applies to any object-oriented or functional backend language, the patterns focus on universal architectural principles that can be adapted to any tech stack.

What are the benefits of using DDD tactical patterns?

DDD tactical patterns like Value Objects and Aggregates help ensure data consistency, prevent invalid states, and make complex business rules explicit within the code.

What specific patterns does this skill support?

This skill supports Clean Architecture, Hexagonal Architecture (also known as Ports and Adapters), and tactical Domain-Driven Design (DDD) patterns.

How does this help with testing?

By enforcing separation of concerns and using interfaces (ports), it allows you to easily mock external dependencies like databases and third-party APIs for faster, more reliable unit testing.

Architecture Patterns

Name: Architecture Patterns
Author: HermeticOrmus

byHermeticOrmus

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개발자 도구

Implements enterprise-grade backend architecture patterns including Clean Architecture, Hexagonal Architecture, and Domain-Driven Design for maintainable systems.

This skill empowers developers to build highly maintainable and testable backend systems by applying industry-standard architectural principles. It provides concrete templates and guidance for implementing Clean Architecture layers, Hexagonal ports and adapters, and Domain-Driven Design (DDD) tactical patterns like Entities and Value Objects. Whether you are starting a new project from scratch or refactoring a legacy monolith, this skill ensures your codebase remains technology-agnostic, decoupled from frameworks, and strictly aligned with core business logic.

주요 기능

01Enforces dependency inversion to keep business rules independent of external frameworks

02Implements DDD tactical patterns including Entities, Value Objects, and Aggregates

03Scaffolds directory structures for Clean and Hexagonal Architecture

04Orchestrates complex business logic using the Use Case and Domain Service patterns

050 GitHub stars

06Defines abstract interfaces (ports) and concrete implementations (adapters) for decoupling

사용 사례

01Establishing standardized architectural patterns across a team to improve code reviews and consistency

02Designing a new microservice from scratch with a focus on long-term scalability

03Refactoring tightly coupled monolithic applications into modular, testable architectures

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hermeticormus/after-the-third-cup architecture-patterns

For use in Claude.ai and ChatGPT

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