How does this skill help with dependency resolution?

It identifies missing providers, exports, or incorrect module imports that trigger the common 'Nest can't resolve dependencies' error and suggests the correct module structure.

Does it support NestJS microservices?

It includes debugging strategies for message pattern mismatches, transport configuration errors (TCP, Redis, etc.), and serialization/deserialization issues.

Does it include testing support?

Yes, it offers patterns for @nestjs/testing utilities, including provider overriding and E2E test configuration for more reliable test suites.

Can it help with circular dependencies?

Yes, it provides implementation patterns for using forwardRef() in both modules and services to safely resolve circular loops without breaking the dependency graph.

Can I use this for WebSocket issues?

The skill provides solutions for gateway configuration, CORS issues with Socket.io, and adapter setup problems in NestJS WebSocket implementations.

NestJS Debugger & Problem Solver

Name: NestJS Debugger & Problem Solver
Author: SnakeO

bySnakeO

0•

API Development

Diagnoses and resolves complex NestJS issues ranging from dependency injection errors to microservice communication failures.

This skill provides a comprehensive, four-phase methodology for troubleshooting NestJS applications. It systematically addresses common framework-specific bottlenecks such as 'Nest can't resolve dependencies' errors, circular module dependencies, and misconfigured guards or interceptors. By offering pre-built patterns for validation pipes, WebSocket gateways, and microservice transport layers, it helps developers reduce downtime and maintain clean architectural standards in their backend services.

Key Features

01Microservice and WebSocket communication debugging

02Validation Pipe and DTO transformation error resolution

03Circular dependency identification and forwardRef implementation

04Guard, Interceptor, and Middleware troubleshooting patterns

05Dependency injection and module resolution diagnostics

060 GitHub stars

Use Cases

01Resolving 'Nest can't resolve dependencies' errors during application startup

02Troubleshooting failed message patterns and transport issues in microservice architectures

03Fixing broken authentication guards or logging interceptors across modules

What are Skills?·How to Install

Install with 🐟 Skill.Fish

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

For use in Claude.ai and ChatGPT

Download Skill