nextjs-app-audit SKILL.md skillA
nextjs-app-audit from novaestellar/novahaku is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add novaestellar/novahaku/nextjs-app-audit@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- novaestellar/novahaku
- Path
testing/frameworks/nextjs-app-audit/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0.0, committed Sep 25, 2026
- Size
- 7,525 bytes
- Repository stars
- 28
- License
- MIT
Audit Next.js apps: extract + invoke server actions.
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 Audit (Server Actions Pentest)
## When to Use
- Target responds with `x-powered-by: Next.js` / RSC headers and has no visible REST API
- Need to test Next.js auth, order, redeem, admin server actions
- Any Next.js App Router target where the backend is server-action-only
Target stack: `x-powered-by: Next.js`, `/_next/static/chunks/*.js`, `self.__next_f.push(...)` RSC payloads, `vary: rsc, next-router-state-tree`. Backend usually hidden behind **Server Actions** — no REST surface on the main domain. Attack surface = server actions + `NEXT_PUBLIC_*` env leaking backend URLs + the underlying API subdomain.
## 1. Download chunks + extract server actions
```bash
curl -s <target>/<page> -o page.html
grep -oE 'src="/_next/static/chunks/[^"]*\.js"' page.html | sed 's/src="//;s/"//' | sort -u > chunks.txt
while read f; do b=$(basename "$f"); [ -f "$b" ] || curl -sL "https://<target>$f" -o "$b"; done < chunks.txt
```
App Router action ID → name mapping (works across chunk files):
```python
import re, glob
pat = re.compile(r'createServerReference\)\("([0-9a-f]{20,})"[^)]*?,"([A-Za-z][A-Za-z0-9]*)"\)')
for f in glob.glob('*.js'):
…Read the whole file at its exact version.
How to install
mdr add novaestellar/novahaku/nextjs-app-audit@sha256:dcb5515f64a0b752The line at the top of this page pins the label v1.0.0, 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_h466pcafsruhwva7)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 25, 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 (7525 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
novaestellar/novahaku · 28 stars · license MIT · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_h466pcafsruhwva7 GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/nextjs-app-audit GET https://markdownregistry.com/api/v1/blob/dcb5515f64a0b7523fd8583ddb9d52161c2916f107549ec65fe11b178ba9b471
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.