What problem does it solve?
It solves performance regressions and inconsistent best practices in Next.js 16 App Router apps by providing a prioritized, rule-based checklist that helps you avoid common mistakes in caching, data fetching, routing, and client/server boundaries.
Core Features & Use Cases
- Performance-first App Router guidance: Apply CRITICAL/HIGH recommendations to reduce bundle size, speed dev and cold starts, and improve streaming and perceived performance.
- Explicit caching and invalidation patterns: Use
fetch cache options, use cache, revalidatePath, and revalidateTag (with cacheLife profiles) to control freshness and prevent stale UIs after mutations.
- Correct Server Components + routing architecture: Prefer server-side data fetching, parallel/intercepting routes,
notFound() handling, and the Next.js 16 proxy.ts network boundary model.
Quick Start
Ask the AI to review your Next.js 16 App Router change by checking caching strategy, server-component data fetching, and route-level loading/streaming against the nextjs skill rules.