Next.js Anti-Patterns Overview Identify and correct common anti-patterns in Next.js App Router applications, focusing on misuse of useEffect, improper data fetching, unnecessary client-side state, and incorrect component boundaries. TypeScript: NEVER Use Type CRITICAL RULE: This codebase has enabled. Using will cause build failures. ❌ WRONG: ✅ CORRECT: Common Next.js Type Patterns When to Use This Skill Use this skill when: - Reviewing Next.js code for best practices - Debugging performance issues in App Router apps - Migrating from Pages Router with legacy patterns - Code shows excessive cli…