nextjs-react-best-practices SKILL.md skillB
nextjs-react-best-practices from joaoguirunas/team-os is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add joaoguirunas/team-os/nextjs-react-best-practices@v1.0Pins v1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- joaoguirunas/team-os
- Path
.claude/skills/nextjs-react-best-practices/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0, committed Sep 26, 2026
- First version recorded
- Aug 27, 2026
- Size
- 8,209 bytes
- Repository stars
- 5
- License
- MIT
Melhores práticas de performance para React e Next.js (App Router) — eliminar waterfalls, reduzir bundle, otimizar Server Components, data fetching, re-renders e Core Web Vitals. Use ao escrever ou revisar componentes React, páginas Next.js, data fetching (server ou client), ou ao investigar bundle size, hydration e lentidão de render.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Next.js + React Best Practices Skill de performance para código React/Next.js, destilada das regras da engenharia da Vercel (70 regras em 8 categorias, priorizadas por impacto). Usada pelos implementers frontend e fullstack — **dev-dev-alpha, dev-dev-gamma, sites-dev-alpha, sites-dev-beta, sites-dev-gamma** — e pelos reviewers **dev-qa / sites-qa** em code review. Aplique na escrita de componentes novos, em refactors e em auditorias de bundle/render. ## 1. Eliminating Waterfalls (CRITICAL) **1.1 — Parallelize independent async operations with `Promise.all()`.** ```tsx // ❌ Sequential — 3 round trips const user = await getUser(id) const posts = await getPosts(id) const stats = await getStats(id) // ✅ Parallel — 1 round trip window const [user, posts, stats] = await Promise.all([ getUser(id), getPosts(id), getStats(id), ]) ``` **1.2 — Check cheap conditions before awaiting.** Don't pay for a fetch you might discard. ```tsx // ❌ fetch always runs const data = await fetchExpensive() if (!flag.enabled) return null // ✅ bail out first if (!flag.enabled) return null const data = await fetchExpensive() ``` …
Read the whole file at its exact version.
How to install
mdr add joaoguirunas/team-os/nextjs-react-best-practices@sha256:55c00716d8ca5e01The line at the top of this page pins the label v1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_b3tuok5nv7eap5cv)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Aug 27, 2026 and Sep 26, 2026, about one every 31 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0 latest | 2026-09-26 | 8a9bf22 | 8,209 B | B | view · diff |
| v1.0 | 2026-08-27 | 3592555 | 8,207 B | B | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8209 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
joaoguirunas/team-os · 5 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_b3tuok5nv7eap5cv GET https://markdownregistry.com/api/v1/resolve?ref=joaoguirunas/team-os/nextjs-react-best-practices GET https://markdownregistry.com/api/v1/blob/55c00716d8ca5e014c75aad838ba6588a6d640824463f504f4004e96809b84f0
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.