Nextjs Anti Patterns

Identify and fix common Next.js App Router mistakes during code review.

Test report

Verdict
In test queue
Tested
Environment
Pending

In the test queue — machine-screened (validator 85/100, 107★ repo), full install/trigger/output test scheduled.

What Nextjs Anti Patterns does

Identify and fix common Next.js App Router anti-patterns and mistakes. Use when reviewing code for Next.js best practices, debugging performance issues, migrating from Pages Router patterns, or preventing common pitfalls. Activates for code review, performance optimization, or detecting inappropriate useEffect/useState usage. CRITICAL: For browser detection, keep the logic in the user-facing…

How to install Nextjs Anti Patterns

git clone https://github.com/wsimmonds/claude-nextjs-skills
cp -r claude-nextjs-skills/nextjs-anti-patterns ~/.claude/skills/nextjs-anti-patterns

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Nextjs Anti Patterns

  • /nextjs-anti-patterns Identify and fix common Next.js App Router mistakes during code review.

It also activates on plain-language prompts like these:

  • Review this component for Next.js anti-patterns
  • Why is this page re-rendering so much, check for mistakes
  • Fix the inappropriate useEffect usage in this file

Frequently asked questions

Is the Nextjs Anti Patterns skill free?
Yes. The skill itself is free from wsimmonds/claude-nextjs-skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does Nextjs Anti Patterns work with Claude Code?
It is in our test queue — we run every skill on real work before issuing a verdict, and this one is scheduled.
How do I install Nextjs Anti Patterns?
Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Nextjs Anti Patterns with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.