missing-frontmatter SKILL.md skillC
missing-frontmatter from arenukvern/skill_steward is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add arenukvern/skill_steward/missing-frontmatter@git:20260529.6bf111ePins git:20260529.6bf111e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- C, 13 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- arenukvern/skill_steward
- Path
evals/fixtures/validate/missing-frontmatter/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260529.6bf111e, committed May 29, 2026
- Size
- 108 bytes
- Repository stars
- 11
- License
- MIT
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
# Missing Frontmatter This file has no YAML frontmatter at all. The validator should report a clear error.
Read the whole file at its exact version.
How to install
mdr add arenukvern/skill_steward/missing-frontmatter@sha256:901810d0efcd05aaThe line at the top of this page pins the label git:20260529.6bf111e, 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_flmubsytwqbfdlrl)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on May 29, 2026.
Audit of the latest version
- fail: Frontmatter block present
- fail: Frontmatter declares a name
- fail: Frontmatter declares a description
- fail: Size between 200 bytes and 200 KB (108 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
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
arenukvern/skill_steward · 11 stars · license MIT · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_flmubsytwqbfdlrl GET https://markdownregistry.com/api/v1/resolve?ref=arenukvern/skill_steward/missing-frontmatter GET https://markdownregistry.com/api/v1/blob/901810d0efcd05aa499d0e05101339056fcba6e2f90e8a302f77458c8095e1a8
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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