nextjs-app-router SKILL.md skillA

nextjs-app-router from asymmetric-al/core is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add asymmetric-al/core/nextjs-app-router@git:20260603.c42511a

Pins git:20260603.c42511a in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
asymmetric-al/core
Path
.agents/skills/nextjs-app-router/SKILL.md
Versions recorded
2
Latest version
git:20260603.c42511a, committed Jun 3, 2026
First version recorded
Mar 11, 2026
Size
3,152 bytes
Repository stars
379
License
AGPL-3.0

Ensure correct Next.js App Router architecture, rendering strategy, and data fetching. Use whenever working under /app — routing, layouts, server/client component boundaries, data fetching, Suspense, and Server Actions. Defaults to Server Components and adds 'use client' only for interactivity. Not for the Pages Router (/pages).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Next.js App Router — Skill

**Name:** `nextjs-app-router`
**Purpose:** Ensure correct App Router architecture, rendering strategy, and data fetching in Next.js.
Use this skill whenever working under `/app`.

**Applies when:** Routing, layouts, server/client boundaries, data fetching, Suspense, Server Actions.
**Do not use when:** Working in the Pages Router (`/pages`) or non-Next.js projects.

## Rules

- **Server-first:** Default to Server Components; add `'use client'` only for interactivity or browser APIs.
- **Routing/layouts:** Use `layout.tsx` for shared UI; keep layouts stable; use route groups `(group)` for organization.
- **Data fetching:** Fetch in Server Components by default and colocate with usage.
- **Rendering strategy:** Choose static, cached, or dynamic intentionally; avoid accidental dynamic rendering.
- **Client components:** Keep them small, prop-driven, and avoid server data fetching inside them.
- **Suspense/streaming:** Use `<Suspense>` for slow or user-specific UI.
- **Mutations:** Prefer Server Actions and invalidate caches as needed.
- **Errors:** Use `error.tsx` and `not-found.tsx` for route-level handling.

## Workflow
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add asymmetric-al/core/nextjs-app-router@sha256:f784cb01f5a4c0b8

The line at the top of this page pins the label git:20260603.c42511a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ofzpzcqkeqnuk2sz.svg)](https://markdownregistry.com/a/art_ofzpzcqkeqnuk2sz)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Mar 11, 2026 and Jun 3, 2026, about one every 84 days. Its first recorded version is graded C and its latest A.

versioncommittedcommitsizeaudit
git:20260603.c42511a latest2026-06-03 c42511a 3,152 BA view · diff
git:20260311.27f086e2026-03-11 27f086e 2,771 BC view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (3152 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

asymmetric-al/core · 379 stars · license AGPL-3.0 · pushed 2026-10-22 · branch develop

API

GET https://markdownregistry.com/api/v1/artifacts/art_ofzpzcqkeqnuk2sz
GET https://markdownregistry.com/api/v1/resolve?ref=asymmetric-al/core/nextjs-app-router
GET https://markdownregistry.com/api/v1/blob/f784cb01f5a4c0b8ed88de0990bfe4ce7520266834084ef2e2f7804d9fd4a128

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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