Can it help with Next.js 15 Server Components?

Absolutely, it provides guidance on deciding between Server and Client Components and optimizing data fetching paths.

How does it handle useMemo and useCallback?

It follows modern standards, recommending memoization only when necessary or advising when to let the React Compiler handle optimizations automatically.

Is this skill useful for architectural reviews?

Yes, it acts as a mentor for component structure, helping you decide when to extract logic to custom hooks or move state closer to its usage.

Does this skill support React 19 features?

Yes, it includes specific validation and patterns for React 19 hooks like useActionState, useOptimistic, and the use API.

React & Next.js Best Practices Validator

Name: React & Next.js Best Practices Validator
Author: markky21

bymarkky21

0•

Developer Tools

Optimizes React and Next.js applications by validating code against modern standards and performance best practices.

This Claude Code skill serves as an expert-level auditor designed for React 19+ and Next.js 15+ environments. It helps developers navigate complex architectural decisions, such as selecting the correct state management hooks, choosing between Server and Client Components, and implementing advanced patterns like optimistic UI updates. By focusing on core principles like logic extraction and intentional memoization, this validator ensures your codebase remains performant, readable, and ready for the React Compiler.

Key Features

01Guides implementation of Server Components and Actions

02Identifies anti-patterns like useEffect misuse and prop drilling

03Validates code against React 19 and Next.js 15 standards

040 GitHub stars

05Optimizes rendering performance and bundle size

06Provides decision trees for hook selection (useState vs useReducer)

Use Cases

01Performing performance audits on complex Next.js application structures

02Modernizing legacy React components for React 19 and Next.js 15

03Onboarding developers to modern React patterns and custom hook extraction

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add markky21/claude-skills react-nextjs-validator

For use in Claude.ai and ChatGPT

Download Skill