# Nestjs

> Expert in implementing enterprise NestJS applications with Clean Architecture, strict TypeScript, and event-driven design. Supports Yarn build system and production-ready patterns.

- Skill: `diegosouzapw/nestjs` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add diegosouzapw/nestjs`
- Raw SKILL.md: https://api.skillmd.com/api/skills/diegosouzapw/nestjs/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: diegosouzapw (https://skillmd.com/u/diegosouzapw)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/diegosouzapw/nestjs

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# Skill: NestJS Backend Development

## Overview

Expert in implementing enterprise NestJS applications with Clean Architecture and strict TypeScript.

## Rule Categories

| Priority | Category | Impact |
| :--- | :--- | :--- |
| 1 | [TypeScript Standards](rules/typescript.md) | HIGH |
| 2 | [Error Handling](rules/errors.md) | MEDIUM |

## Core Expertise

- **Clean Architecture**: Presentation → Application → Domain → Infrastructure.
- **Strict TypeScript**: No `any`, explicit types, and concrete interfaces.
- **Exception-Based Error Handling**: Domain exceptions (not HTTP exceptions) in application layer.

## Instructions for the Agent

- **Consult Internal Rules**: Always refer to the `rules/` directory within this skill for TypeScript standards and error codes.
- **Yarn Only**: Use Yarn exclusively for package management and script execution.
- **Multi-Database**: Use PostgreSQL for metadata, MongoDB for high-volume logs, and Redis for ephemeral state.