hyper-skill-tester skillA
hyper-skill-tester is agent-read markdown (skill) from stijnman/grok-custom-skills: Stress-tests skills with edge-case prompts and scoring rubric. Use for: test skill, hyper test, skill QA, audit skill quality..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add stijnman/grok-custom-skills/hyper-skill-tester@v1.2.0mdr add stijnman/grok-custom-skills/hyper-skill-tester@sha256:c853fd98c8b41318Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_f32czqhkqoriwwhe)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.2.0 latest | 2026-08-14 | 80f2e55 | 1,317 B | A | view · diff |
| v1.2.0 | 2026-08-14 | abe185a | 1,299 B | A | view · diff |
| v1.1.0 | 2026-06-24 | 5c9866b | 1,420 B | A | view |
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 (1317 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
stijnman/grok-custom-skills · 10 stars · license MIT · pushed 2026-09-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_f32czqhkqoriwwhe GET https://markdownregistry.com/api/v1/resolve?ref=stijnman/grok-custom-skills/hyper-skill-tester GET https://markdownregistry.com/api/v1/blob/c853fd98c8b41318a8dcac6f2394dcf702efe3f3d973cf8f74f1a86d691afbf1
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.