test-fuzz SKILL.md skillB
test-fuzz from dhaupin/vant is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dhaupin/vant/test-fuzz@v1.0Pins v1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dhaupin/vant
- Path
models/public/vant/skills/vant-skill-test-fuzz/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0, committed Jul 20, 2026
- Size
- 1,047 bytes
- Repository stars
- 12
- License
- MIT
Feed random/invalid inputs to find unexpected crashes. Use when testing input handling, security, or finding edge case bugs.
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
# Test Fuzz
> Random input testing.
## When To Use
- Input validation
- Security testing
- Edge cases
## Fuzz Techniques
### 1. Random Data
```javascript
fuzz('email', () => randomEmail())
fuzz('number', () => randomInt())
```
### 2. Invalid Inputs
```javascript
fuzz('sql', () => "' OR '1'='1")
fuzz('xss', () => "<script>alert(1)</script>")
```
### 3. Mutation
```javascript
fuzz('mutation', () => mutate(existing))
```
---
## Tools
| Tool | Use |
|------|-----|
| AFL | Binary fuzzing |
| libFuzzer | LLVM fuzzing |
| Jest QuickCheck | Property-based |
| fast-check | Node fuzzing |
---
## Output
```
## Fuzz Tests
| Input | Result |
|-------|--------|
| [n] inputs | [n] crashes |
| [n] timeouts | [n] hangs |
### Vulnerabilities
- [list]
```
**Role**: Fuzz Tester
**Input**: Target
**Output**: CrashesRead the whole file at its exact version.
How to install
mdr add dhaupin/vant/test-fuzz@sha256:7091e47f8f053921The line at the top of this page pins the label v1.0, 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_qbbkx2tt5omedp2z)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 20, 2026.
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1047 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
dhaupin/vant · 12 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qbbkx2tt5omedp2z GET https://markdownregistry.com/api/v1/resolve?ref=dhaupin/vant/test-fuzz GET https://markdownregistry.com/api/v1/blob/7091e47f8f05392188da5b3058f3481cb10b9e529f01c7fda309ebdaff31d223
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.