This file is byte-identical to the first copy the registry indexed, one of 9 indexed copies. Same content hash, so the same checks give both the same grade.
vercel-react-best-practices from bdsqqq/dots is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance improvements.
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
# Vercel React Best Practices
Comprehensive performance optimization guide for React and Next.js applications, maintained by Vercel. Contains 70 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.
## When to Apply
Reference these guidelines when:
- Writing new React components or Next.js pages
- Implementing data fetching (client or server-side)
- Reviewing code for performance issues
- Refactoring existing React/Next.js code
- Optimizing bundle size or load times
## Rule Categories by Priority
| Priority | Category | Impact | Prefix |
|----------|----------|--------|--------|
| 1 | Eliminating Waterfalls | CRITICAL | `async-` |
| 2 | Bundle Size Optimization | CRITICAL | `bundle-` |
| 3 | Server-Side Performance | HIGH | `server-` |
| 4 | Client-Side Data Fetching | MEDIUM-HIGH | `client-` |
| 5 | Re-render Optimization | MEDIUM | `rerender-` |
| 6 | Rendering Performance | MEDIUM | `rendering-` |
| 7 | JavaScript Performance | LOW-MEDIUM | `js-` |
| 8 | Advanced Patterns | LOW | `advanced-` |
## Quick Reference
### 1. Eliminating Waterfalls (CRITICAL)
…
The line at the top of this page pins the label v1.0.0, 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.
GET https://markdownregistry.com/api/v1/artifacts/art_3vosk43hbdcxikzi
GET https://markdownregistry.com/api/v1/resolve?ref=bdsqqq/dots/vercel-react-best-practices
GET https://markdownregistry.com/api/v1/blob/71ed7794962fa6e803ee83030517b5b93a9f70fbfeb431ec4535c5480a8d8355
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.
bdsqqq/dots · modules/agents/skills/building-review-playgrounds/SKILL.md · Exposes hard-to-reach UI states through issue-scoped production-component fixtures. Use when existing routes or stories…
bdsqqq/dots · modules/agents/skills/buying-stuff/SKILL.md · helps choose what to buy and where to buy it, based on the user's priorities, budget, and location. use for shopping…
bdsqqq/dots · modules/agents/skills/company-money/SKILL.md · Ingests bounded Wise Gmail notifications and Nubank statements into the private local company ledger, then produces…
bdsqqq/dots · modules/agents/skills/composing-data-driven-ui/SKILL.md · Makes data-backed UI work outside its original page. Use when callers need to supply data or fetch by ID, or reuse a…
bdsqqq/dots · modules/agents/skills/data-visualization/SKILL.md · Use when creating, reviewing, or styling charts, graphs, dashboards, sparklines, or any data visualization.
bdsqqq/dots · modules/agents/skills/designing-progressive-apis/SKILL.md · Designs type-safe APIs with useful defaults and room for caller control. Use for overloads, render slots, compound…
bdsqqq/dots · modules/agents/skills/desloping-code-changes/SKILL.md · Tests whether code-change complexity is justified by behavior and local contracts. Use for a focused craft review of…
cherryhq/cherry-studio · .agents/skills/vercel-react-best-practices/SKILL.md · React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing…
vercel-labs/agent-skills · skills/react-best-practices/SKILL.md · React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing…
zebbern/claude-code-guide · skills/react-best-practices/SKILL.md · React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing…
gronxb/hot-updater · .agents/skills/vercel-react-best-practices/SKILL.md · React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing…
fcakyon/claude-codex-settings · plugins/react-skills/skills/react-best-practices/SKILL.md · React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing…
coco-research/coco · skills/vercel-react-best-practices/SKILL.md · Pointer to the upstream skill for React and Next.js performance work (data fetching, bundle size, re-renders)…
asymmetric-al/core · .agents/skills/vercel-react-best-practices/SKILL.md · React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing…
hidorakai002/ai-workspace-archive · ai_agent_frameworks/major_frameworks/AutoGPT/.claude/skills/vercel-react-best-practices/SKILL.md · React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing…