What is the primary benefit of using the DDD Refactor skill?

It helps transform messy, service-heavy code into a maintainable, rich domain model that accurately reflects business logic and enforces technical invariants.

Is this skill restricted to a specific programming language?

No, while the repository provides examples in TypeScript, Java, and Python, the principles are applicable to any object-oriented or functional language used for business logic.

Can it identify specific code smells automatically?

Yes, the skill is designed to scan for anti-patterns such as anemic models, primitive obsession, large aggregates, and domain logic leaking into controllers or infrastructure.

Does it handle strategic design or just code changes?

It handles both; the Four-Phase Strategy includes a Discovery and Strategic Refactoring phase to map domain boundaries before any code is modified.

Which DDD patterns does this skill support?

It supports tactical patterns like Entities, Value Objects, Aggregates, Repositories, and Domain Events, as well as strategic patterns like Bounded Contexts and Context Mapping.

Domain-Driven Design Refactor

Name: Domain-Driven Design Refactor
Author: radkomih

byradkomih

0•

API Development

Refactors complex codebases using Domain-Driven Design principles to improve domain clarity and architectural integrity.

The Domain-Driven Design Refactor skill provides a comprehensive framework for applying Eric Evans' DDD principles to legacy or evolving codebases. It guides users through a structured four-phase strategy—Discovery, Strategic Planning, Tactical Application, and Validation—to identify code smells like anemic domain models and primitive obsession. By automating the implementation of tactical patterns such as Entities, Value Objects, and Aggregates, the skill helps developers move business logic out of thin services and into a rich, testable domain layer while enforcing clear boundaries between contexts.

Key Features

010 GitHub stars

02Structural refactoring for tactical patterns including Entities, Value Objects, and Aggregates.

03Strategic guidance for defining Bounded Contexts and establishing a Ubiquitous Language.

04Implementation of Domain Events to enable loose coupling and state-change tracking.

05Automated detection of DDD anti-patterns like anemic domain models and leaked infrastructure concerns.

06Layered architecture enforcement to isolate core business logic from external dependencies.

Use Cases

01Transforming service-heavy, procedural code into a behavior-driven rich domain model.

02Decoupling monolithic systems by identifying and enforcing strict Bounded Context boundaries.

03Refactoring 'primitive obsession' by converting raw data types into self-validating Value Objects.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add radkomih/claude-code-ext ddd-refactor

For use in Claude.ai and ChatGPT

Download Skill