Next.js Code Review

Overview

Evaluates Next.js App Router code against best practices for Server Components, Client Components, Server Actions, caching strategies, and production-readiness criteria. Produces actionable findings categorized by severity with concrete code examples. Delegates to typescript-software-architect-review agent for architectural analysis.

When to Use

• Reviewing Next.js pages, layouts, and route segments before merging
• Validating Server Component vs Client Component boundaries
• Checking Server Actions for security and correctness
• Reviewing data fetching patterns (fetch, cache, revalidation)
• Evaluating caching strategies (static generation, ISR, dynamic rendering)
• Assessing middleware implementations (authentication, redirects, rewrites)
• Reviewing API route handlers for proper request/response handling
• Validating metadata configuration for SEO
• Checking loading, error, and not-found page implementations
• After implementing new Next.js features or migrating from Pages Router