# Fastify

> Fastify high-performance Node.js web framework reference. Covers routes with JSON Schema validation, encapsulated plugin system, lifecycle hooks, decorators, TypeScript with TypeBox, error handling, inject-based testing, and Pino structured logging.

- Skill: `bytesagain/fastify` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add bytesagain/fastify`
- Raw SKILL.md: https://api.skillmd.com/api/skills/bytesagain/fastify/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: bytesagain (https://skillmd.com/u/bytesagain)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/bytesagain/fastify

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# Fastify Reference

Fast and low overhead Node.js web framework.

## Commands

| Command | Description |
|---------|-------------|
| `intro` | Overview, benchmarks |
| `basics` | Routes, validation, replies |
| `plugins` | Plugins, hooks, decorators |
| `advanced` | TypeScript, testing, logging |