mcpbeat

Nitro

antfu/nitro

Nitro is the framework-agnostic server toolkit (powering Nuxt) for building and deploying web servers anywhere. Use when working with nitro.config, server routes/event handlers, route rules, caching, storage, tasks, websockets, or deploying to Node/Bun/Deno/Cloudflare/Vercel.

14k tokens
context cost
the whole folder, loaded on every use
15
files
instructions only
0
copies elsewhere
how many repositories repackaged it
5703
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository 
npx skills add https://github.com/antfu/skills --skill nitro

The instruction itself

3 sections, as written by the author

> The skill is based on Nitro v3 (beta), generated at 2026-06-22.

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 auth.
  • Caching layer (cached handlers/functions, SWR) on top of unstorage KV.
  • 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.

> Nitro v3 renamed the package nitropack → nitro and adopts H3 v2 (web-standard Request/Response). 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 |

How to use it

Copy the folder

Take antfu/nitro from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.