nextjs-app-router

nextjs-app-router is a skill for Claude Code, Codex from nakano1122/dotfiles. It costs 107 tokens per session (2,246 once invoked), scanned A, original, no licence file.

A guide to building TypeScript applications with the Next.js App Router, the part of Next.js that organizes pages and layouts through the application folder structure.

In plain words
What is it for?
It is for implementing features and planning application structure with Next.js App Router, including data fetching, caching, authentication UI, SEO metadata, middleware, and environment settings.
Why use it?
It explains how to choose between server and browser code, fetch and cache data, manage state, handle sign-in screens, and configure search metadata.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It is for implementing features and planning application structure with Next.js App Router, including data fetching, caching, authentication UI, SEO metadata, middleware, and environment settings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nakano1122/dotfiles/nextjs-app-router
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 nakano1122/dotfiles --skill nextjs-app-router
Clone the repo
git clone --depth 1 https://github.com/nakano1122/dotfiles

Made for: Claude Code, Codex.

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-app-router

README.md
[![agentmods](https://agentmods.dev/badge/skills/nakano1122/dotfiles/nextjs-app-router/github.svg)](https://agentmods.dev/skills/nakano1122/dotfiles/nextjs-app-router)
Your own site
<a href="https://agentmods.dev/skills/nakano1122/dotfiles/nextjs-app-router"><img src="https://agentmods.dev/badge/skills/nakano1122/dotfiles/nextjs-app-router/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-app-router

Your own site · 80×15
<a href="https://agentmods.dev/skills/nakano1122/dotfiles/nextjs-app-router"><img src="https://agentmods.dev/badge/skills/nakano1122/dotfiles/nextjs-app-router.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,246 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00107 $0.02246
Opus 5 $0.00053 $0.01123
Sonnet 5 $0.00021 $0.00449
Haiku 4.5 $0.00011 $0.00225

Measured 8d ago against content hash c1369f2dbcb0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

nextjs-app-router scanned grade A with 1 finding 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 8d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

fetch(url, { next: { revalidate: 3600 } }); // 1時間キャッシュ
dot_agents/skills/nextjs-app-router/SKILL.md · 241 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 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. 8d ago First seen · 241 lines · 107 tokens per session scan A c1369f2dbcb0

Subscribe to this mod's changes

nextjs-app-router is a skill published in the GitHub repository nakano1122/dotfiles (2 stars, last pushed 2mo ago), with no licence file. It adds 107 tokens to every session and 2,246 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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