nextjs SKILL.md skillA
nextjs from alexander-danilenko/cortex-claude-code-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add alexander-danilenko/cortex-claude-code-plugins/nextjs@git:20261013.ecfffa1Pins git:20261013.ecfffa1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- alexander-danilenko/cortex-claude-code-plugins
- Path
plugins/engineering/cortex-web/skills/nextjs/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261013.ecfffa1, committed Oct 13, 2026
- Size
- 3,218 bytes
- Repository stars
- 17
- License
- MIT
Apply these opinionated Next.js conventions whenever writing or reviewing App Router code (14+): Server Components by default, where the 'use client' boundary belongs, the caching defaults that changed in Next 15, tag-based revalidation, treating Server Actions as public endpoints, the Metadata API, and next/image and next/font.
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 House conventions for Next.js App Router (14+). Apply them to code you are writing or changing — don't migrate untouched routes unless asked. ## Conventions - **App Router only.** Never add to `pages/`. If a project still has one, new work goes in `app/` and the two coexist until someone schedules the migration. - **Server Components by default.** `'use client'` marks a leaf that needs interactivity, not a page. Everything above that marker ships to the browser too, so the boundary belongs as deep in the tree as it will go. - **Verify caching behaviour against the installed version — it changed.** Through Next 14, `fetch` was cached by default and you opted out; from Next 15, `fetch`, Route Handlers, and client navigation are uncached by default and you opt in. Assuming the wrong default gives you either stale pages or an origin taking every request. Check `package.json`, then set the intent explicitly (`cache`, `next.revalidate`, or route segment config) rather than relying on whatever the default happens to be. …
Read the whole file at its exact version.
How to install
mdr add alexander-danilenko/cortex-claude-code-plugins/nextjs@sha256:2ab49a549376fc39The line at the top of this page pins the label git:20261013.ecfffa1, 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.
[](https://markdownregistry.com/a/art_jepfsdn3ylbnspvd)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 13, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3218 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
alexander-danilenko/cortex-claude-code-plugins · 17 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jepfsdn3ylbnspvd GET https://markdownregistry.com/api/v1/resolve?ref=alexander-danilenko/cortex-claude-code-plugins/nextjs GET https://markdownregistry.com/api/v1/blob/2ab49a549376fc39e841d83fb018cf498082932d6cbf68356f8dbf7b04cb937c
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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