nitro

Name: nitro
Author: antfu

github.com/antfuDevelopment6.0k2.7k installsUpdated 6d ago

About nitro

A Nitro v3 skill for server-side developers, covering this framework- and deployment-agnostic toolkit built on H3 v2. It addresses routing, caching, storage, real-time connections, databases, and deployment presets, as well as migration changes from v2.

Key features

01Filesystem routing and route rules
02KV storage and caching
03Runtime config and lifecycle hooks
04Scheduled tasks, WebSockets, and SSE
05SQL database layer and OpenAPI docs
06Deployment presets for multiple platforms

Use cases

01Configure routes, caching, and response headers for a server
02Add scheduled tasks or WebSocket handlers
03Connect a SQL data layer and generate OpenAPI docs
04Deploy a service to different runtimes or platforms

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/antfu/skills --skill nitro

After installing, type/nitroin Claude Code to confirm it loaded.

Bundled files

References and scripts installed along with SKILL.md.

GENERATION.md

references/

advanced-migration.md

core-assets.md

core-cache.md

core-configuration.md

core-rendering.md

core-routing.md

core-storage.md

deploy-presets.md

features-database.md

features-openapi.md

features-plugins.md

features-tasks.md

features-websocket.md

Details

From the project README

The skill is based on Nitro v3 (beta, 3.0.260903), generated at 2026-09-25.

Nitro is a framework-agnostic, deployment-agnostic server toolkit powered by H3 v2, unstorage, and Vite/Rolldown/Rollup. It powers Nuxt and works standalone. From one codebase it builds optimized output for Node.js, Bun, Deno, Cloudflare, Vercel, Netlify, and more.

Key capabilities:

Filesystem routing with H3 v2 event handlers, dynamic params, and method suffixes.
Route rules for declarative caching, headers, redirects, proxying, and CORS.
Caching layer (cached handlers/functions, SWR) on top of the unstorage KV layer.
Runtime config overridable via NITRO_* env vars.
Tasks (on-demand + scheduled/cron), WebSockets/SSE, a SQL database layer, and OpenAPI auto-docs.
Plugins & lifecycle hooks, custom renderer/server entry, and portable deployment presets.

Key v3 changes (vs. nitropack v2): the package is renamed nitropack → nitro with H3 v2 (web-standard Request/Response); auto-imports are removed (import everything explicitly); directory scanning is opt-in via serverDir; useStorage → useKV (nitro/kv) and the storage config option → kv; cache swr now defaults to false. If unsure about v2-vs-v3 APIs, read advanced-migration first.

Core

Topic	Description	Reference
Routing	File-based routes, `defineHandler`, params, middleware, route rules, errors	core-routing
Configuration	`nitro.config.ts`, `defineConfig`, key options, runtime config	core-configuration
Storage	unstorage KV, mount points, drivers, dynamic mounts	core-storage
Cache	`defineCachedHandler`, `defineCachedFunction`, SWR, invalidation	core-cache
Assets	Public assets, compression, server assets via storage	core-assets
Rendering	Renderer (HTML/SSR), server entry, framework integration	core-rendering

Features

Topic	Description	Reference
Plugins & Hooks	`definePlugin`, runtime lifecycle hooks, error capture	features-plugins
Tasks	On-demand & scheduled (cron) tasks, `runTask`	features-tasks
WebSocket & SSE	`defineWebSocketHandler`, pub/sub, namespaces, event streams	features-websocket
Database	Built-in SQL layer via db0, `useDatabase`, connectors	features-database
OpenAPI	Auto spec from `defineRouteMeta`, Scalar/Swagger UIs	features-openapi

Advanced / Deployment

Topic	Description	Reference
Deployment Presets	Runtimes & providers, compatibility dates, platform integration	deploy-presets
v2 → v3 Migration	Package rename, `nitro/*` imports, H3 v2 API, preset changes	advanced-migration

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Details

Author: antfu
Repository: antfu/skills
Category: Development
Installs: 2,690
GitHub stars: 6,019

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