moai-workflow-ddd

Refactors legacy code using Domain-Driven Development principles and the ANALYZE-PRESERVE-IMPROVE cycle.

3|Updated Feb 18, 2026

Search Tags:#refactoring #ddd #technical debt #code improvement #behavior preservation

Ready to run

npx skills add https://github.com/rodmena-limited/trust5 --skill moai-workflow-ddd-rodmena-limited

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: moai-workflow-ddd
Source: https://github.com/rodmena-limited/trust5/tree/main/trust5/assets/claude/skills/moai-workflow-ddd
Command: npx skills add https://github.com/rodmena-limited/trust5 --skill moai-workflow-ddd-rodmena-limited

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires ast-grep, and includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill addresses the challenge of refactoring legacy code while preserving its behavior, leveraging Domain-Driven Development (DDD) principles.

Core Features & Use Cases

Behavior-Preserving Refactoring: Refactor code with DDD's ANALYZE-PRESERVE-IMPROVE cycle.
Code Structure Improvement: Enhance code without altering functionality.
Technical Debt Reduction: Safely reduce technical debt in production systems.
Use Case: Refactor a complex class hierarchy in a legacy codebase to improve maintainability without changing the application's behavior.

Quick Start

Run the moai-workflow-ddd skill to begin refactoring a legacy codebase with DDD principles.

Frequently Asked Questions about moai-workflow-ddd

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I refactor legacy code without changing its behavior?▼

Behavior-preserving refactoring uses the Domain-Driven Development ANALYZE-PRESERVE-IMPROVE cycle to enhance code structure and reduce technical debt without altering the application's original functionality.

What is the best way to apply DDD principles to an existing codebase?▼

Applying Domain-Driven Development to an existing codebase involves using structural analysis to map current logic, preserving behavior during transitions, and improving complex class hierarchies for modernization.

Do I need ast-grep to reduce technical debt through DDD refactoring?▼

Yes, ast-grep is a required dependency for this DDD refactoring workflow, as it provides the structural code analysis needed to safely identify and preserve behavior during the refactoring cycle.

How does behavior preservation work during API modernization?▼

API modernization preserves behavior by running code through an ANALYZE-PRESERVE-IMPROVE cycle, ensuring that structural enhancements and technical debt reduction do not alter the application's existing functional outputs.

Can I use this DDD workflow to refactor complex class hierarchies in production?▼

Yes, this DDD workflow specifically targets complex class hierarchies in legacy production codebases, applying behavior-preserving techniques to safely improve maintainability without changing application behavior.

What prerequisites are needed for Domain-Driven Development code improvement?▼

Domain-Driven Development code improvement requires prerequisite knowledge of DDD principles and the ast-grep structural analysis tool to execute the behavior-preserving refactoring cycle effectively.