V16

Name: V16
Author: bobmatnyc

ASecurity

Next.js 16 migration guide (async request APIs, "use cache", Turbopack)

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Added June 6, 2026

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npx -y skills add bobmatnyc/claude-mpm-skills --skill nextjs-v16 --agent claude-code

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SKILL.md

---
name: nextjs-v16
description: Next.js 16 migration guide (async request APIs, "use cache", Turbopack)
user-invocable: false
disable-model-invocation: true
version: 1.1.0
category: toolchain
progressive_disclosure:
  entry_point:
    summary: "Next.js 16 migration: async request APIs + opt-in caching"
tags: [nextjs, nextjs-16]
---

# Next.js 16

- Async `params`/`cookies`/`headers`; opt-in caching via `"use cache"`; Turbopack default.

Anti-patterns:

- ❌ Sync request APIs; ✅ `await` `params`, `cookies()`, and `headers()`.
- ❌ Keep `middleware.ts`; ✅ use `proxy.ts` and `export function proxy`.
- ❌ `revalidateTag("posts")`; ✅ `revalidateTag("posts", "max")` or `{ expire: ... }`.

References: `references/migration-checklist.md`, `references/cache-components.md`, `references/turbopack.md`