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nextjs-app-router-patterns

nextjs-app-router-patterns is a skill for Claude Code, Codex from hainamchung/agent-assistant. It costs 30 tokens per session (242 once invoked), scanned A, original, MIT.

A collection of architecture patterns for Next.js 14 and newer using the App Router, Server Components, and full-stack React.

In plain words
What is it for?
Use it to build or migrate routes, add streaming and server actions, and design data fetching, caching, and full-stack features.
Why use it?
It helps developers organize newer Next.js applications and avoid common mistakes when moving from the older Pages Router.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 54repo 5mo ago A scan 30 tokens original MIT

Good fit Use it to build or migrate routes, add streaming and server actions, and design data fetching, caching, and full-stack features.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hainamchung/agent-assistant/nextjs-app-router-patterns
View source ↗ hainamchung/agent-assistant agent-assistant-ten.vercel.app
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 hainamchung/agent-assistant --skill nextjs-app-router-patterns
Clone the repo
git clone --depth 1 https://github.com/hainamchung/agent-assistant

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-patterns

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/hainamchung/agent-assistant/nextjs-app-router-patterns"><img src="https://agentmods.dev/badge/skills/hainamchung/agent-assistant/nextjs-app-router-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 242 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 $0.00030 $0.00242
Opus 5.5 $0.00012 $0.00097
Sonnet 5.5 $0.00006 $0.00048
Haiku 4.5 $0.00003 $0.00024

Measured 2mo ago against content hash 90e32b845206, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

nextjs-app-router-patterns 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 2mo 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

skills/nextjs-app-router-patterns/SKILL.md · 37 lines

What it actually says

Next.js App Router Patterns

Comprehensive patterns for Next.js 14+ App Router architecture, Server Components, and modern full-stack React development.

Use this skill when

  • Building new Next.js applications with App Router
  • Migrating from Pages Router to App Router
  • Implementing Server Components and streaming
  • Setting up parallel and intercepting routes
  • Optimizing data fetching and caching
  • Building full-stack features with Server Actions

Do not use this skill when

  • The task is unrelated to next.js app router patterns
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.
  • If detailed examples are required, open resources/implementation-playbook.md.

Resources

  • resources/implementation-playbook.md for detailed patterns and examples.
Files

What ships with it

1 file 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. 2mo ago First seen · 37 lines · 30 tokens per session scan A 90e32b845206

Subscribe to this mod's changes

nextjs-app-router-patterns is a skill published in the GitHub repository hainamchung/agent-assistant (54 stars, last pushed 5mo ago), licensed MIT. It adds 30 tokens to every session and 242 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.

Backend and APIsFrontendReact
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