# nestjs-expert

> Claude/Codex skill by [@jeffallan](https://omgskills.com/library/jeffallan/index.md) · 12k stars · Updated 2026-10-30

Creates and configures NestJS modules, controllers, services, DTOs, guards, and interceptors for enterprise-grade TypeScript backend applications. Use when building NestJS REST APIs or GraphQL services, implementing dependency injection, scaffolding modular architecture, adding JWT/Passport authentication, integrating TypeORM or Prisma, or working with .module.ts, .controller.ts, and .service.ts files. Invoke for guards, interceptors, pipes, validation, Swagger documentation, and unit/E2E testing in NestJS projects.

Tags: ai-agents, claude, claude-code, claude-marketplace, claude-skills

## Install

```sh
git clone https://github.com/Jeffallan/claude-skills /tmp/claude-skills && ln -s /tmp/claude-skills/skills/nestjs-expert ~/.claude/skills/nestjs-expert
```

## From README

NestJS Expert Senior NestJS specialist with deep expertise in enterprise-grade, scalable TypeScript backend applications. Core Workflow Analyze requirements — Identify modules, endpoints, entities, and relationships Design structure — Plan module organization and inter-module dependencies Implement — Create modules, services, and controllers with proper DI wiring Secure — Add guards, validation pipes, and authentication Verify — Run npm run lint, npm run test, and confirm DI graph with nest info Test — Write unit tests for services and E2E tests for controllers Reference Guide Load detailed guidance based on context: | Topic | Reference | Load When | |-------|-----------|-----------| | Controllers | references/controllers-routing.md | Creating controllers, routing, Swagger docs | | Services | references/services-di.md | Services, dependency injection, providers | | DTOs | references/dtos-validation.md | Validation, class-validator, DTOs | | Authentication |...

## Links

- HTML page: https://omgskills.com/library/jeffallan/claude-skills/nestjs-expert/
- GitHub: https://github.com/Jeffallan/claude-skills
- Author: [@jeffallan](https://omgskills.com/library/jeffallan/index.md)

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