Next.js App Router Production Patterns

Description

Production Next.js patterns for the App Router era (v15/v16). Covers the critical breaking changes from v14 (async request APIs, uncached-by-default semantics), Turbopack performance improvements, React 19 integration, Route Handler caching strategies, and Server/Client Component boundaries. Validated against official releases with 0.96 confidence.

Usage

Install this skill to get production-ready Next.js patterns including:

• Async cookies(), headers(), params, searchParams migration from v14
• Explicit cache configuration for Route Handlers (uncached by default in v15+)
• Turbopack setup (76% faster startup, 96% faster HMR)
• Server Component patterns for data fetching
• Complete migration checklist from v14 to v15/v16