How does this skill help with NestJS circular dependencies?

It identifies common dependency loops and suggests refactoring strategies such as extracting shared logic into separate modules or correctly implementing forward references.

Does it support complex patterns like CQRS?

Absolutely. It provides implementation patterns for Commands, Queries, and Event Handlers to help decouple your business logic from your transport layer.

How does it improve controller readability?

It transforms 'fat' controllers into thin entry points by moving business logic into services and handling cross-cutting concerns through guards, interceptors, and pipes.

Can it help with DTO validation?

Yes, it automatically refactors request and response objects into DTOs using class-validator and class-transformer for robust runtime validation and type safety.

NestJS Refactor & Clean Architecture

Name: NestJS Refactor & Clean Architecture
Author: SnakeO

bySnakeO

0•

API Development

Refactors NestJS and TypeScript code to enhance maintainability, scalability, and adherence to SOLID design principles.

This skill empowers developers to transform legacy or disorganized NestJS codebases into exemplary, production-grade implementations. It specializes in identifying and resolving architectural smells like circular dependencies, 'god object' services, and Single Responsibility Principle (SRP) violations while implementing advanced NestJS patterns. Whether you need to reorganize modules for better encapsulation, implement CQRS for complex domain logic, or optimize DTO validation, this skill provides domain-specific guidance to ensure your backend is clean, readable, and follows industry best practices.

Key Features

01Resolves circular dependencies and eliminates 'god object' services

02Implements SOLID principles and clean architecture patterns

03Optimizes module organization and provider encapsulation

04Standardizes DTOs with class-validator and class-transformer

05Automates the transition to CQRS and Repository patterns

060 GitHub stars

Use Cases

01Migrating business logic from fat controllers into dedicated, testable services

02Refactoring deeply nested conditional logic into clean guard clauses and early returns

03Modernizing a legacy NestJS codebase to meet current industry standards

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add snakeo/claude-debug-and-refactor-skills-plugin refactor-nestjs

For use in Claude.ai and ChatGPT

Download Skill