nextjs-v16

nextjs-v16 is a skill for Claude Code from bobmatnyc/claude-mpm-skills. It costs 25 tokens per session (233 once invoked), scanned A, original, MIT.

A guide for moving an application to Next.js 16, a version of the Next.js web framework. It covers changed request handling, caching, and the default build tool.

In plain words
What is it for?
Use it when upgrading a Next.js project to version 16 and checking code against the new request, proxy, caching, and Turbopack rules.
Why use it?
It helps prevent migration errors caused by older synchronous request APIs, outdated middleware files, or changed cache settings.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Good fit Use it when upgrading a Next.js project to version 16 and checking code against the new request, proxy, caching, and Turbopack rules.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/bobmatnyc/claude-mpm-skills/nextjs-v16
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add bobmatnyc/claude-mpm-skills --skill nextjs-v16
Clone the repo
git clone --depth 1 https://github.com/bobmatnyc/claude-mpm-skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nextjs-v16

README.md
[![agentmods](https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/nextjs-v16/github.svg)](https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/nextjs-v16)
Your own site
<a href="https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/nextjs-v16"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/nextjs-v16/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for nextjs-v16

Your own site · 80×15
<a href="https://agentmods.dev/skills/bobmatnyc/claude-mpm-skills/nextjs-v16"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm-skills/nextjs-v16.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 233 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00025 $0.00233
Opus 5 $0.00013 $0.00117
Sonnet 5 $0.00005 $0.00047
Haiku 4.5 $0.00003 $0.00023

Measured 11d ago against content hash ef537f36f58e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

nextjs-v16 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

toolchains/nextjs/nextjs-v16/SKILL.md · 25 lines

What it actually says

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

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 25 lines · 25 tokens per session scan A ef537f36f58e

Subscribe to this mod's changes

nextjs-v16 is a skill published in the GitHub repository bobmatnyc/claude-mpm-skills (74 stars, last pushed 1mo ago), licensed MIT. It adds 25 tokens to every session and 233 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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