validate-skill-md SKILL.md skillA
validate-skill-md from vintasoftware/vinta-ai-workflows is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add vintasoftware/vinta-ai-workflows/validate-skill-md@git:20260708.a4ba4e8Pins git:20260708.a4ba4e8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- vintasoftware/vinta-ai-workflows
- Path
dev-skills/validate-skill-md/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260708.a4ba4e8, committed Jul 8, 2026
- First version recorded
- May 6, 2026
- Size
- 6,689 bytes
- Repository stars
- 12
- License
- MIT
Lint every `SKILL.md` under `skills/` (and optionally `dev-skills/`) for the contract any agent runtime expects — frontmatter `name:` matches dir name, `description:` exists and is dense, no surviving `{{PLACEHOLDER}}` strings (except in declared template files), every relative markdown link resolves, every declared `resources/` / `scripts/` path actually exists. Pure read-only — reports findings, exits 1 on errors. Use before committing changes that touched a skill body, or as a quick…
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
# Validate SKILL.md
Skills are loaded by Claude Code, Codex, Cursor, and Copilot from frontmatter alone — `name:` + `description:` decide whether the skill triggers. Body content is parsed loosely (markdown), but a few invariants exist:
- `name:` must match the directory name (Cursor + Copilot constraint).
- `description:` must be present + non-empty.
- `{{PLACEHOLDER}}` strings should only survive in `*-template.md` files (which `vinta-derive-skills` renders before shipping).
- Relative links should resolve (`[text](relative/path.md)`).
- Bundled resources referenced from the body should exist.
This skill checks all of the above repo-wide.
## Step 0 — Confirm scope
Use `AskUserQuestion`:
- `Skills only (skills/**)` — default; the user-facing surface.
- `Skills + dev-skills (skills/**, dev-skills/**)` — also lint maintenance skills (`add-foundation-skill`, `release`, etc.).
- `One skill (path/to/SKILL.md)` — single-file mode for tight loops.
## Step 1 — Walk the tree
```bash
find skills dev-skills -name SKILL.md -type f 2>/dev/null
```
For each file, read frontmatter + body.
## Step 2 — Per-file checks
For each `SKILL.md`:
### 2a. Frontmatter
…Read the whole file at its exact version.
How to install
mdr add vintasoftware/vinta-ai-workflows/validate-skill-md@sha256:c1067b72023c489aThe line at the top of this page pins the label git:20260708.a4ba4e8, 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_4pl6hnqktwkg7nza)
0 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between May 6, 2026 and Jul 8, 2026, about one every 63 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260708.a4ba4e8 latest | 2026-07-08 | a4ba4e8 | 6,689 B | A | view · diff |
| git:20260506.969d409 | 2026-05-06 | 969d409 | 6,287 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 (6689 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
vintasoftware/vinta-ai-workflows · 12 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4pl6hnqktwkg7nza GET https://markdownregistry.com/api/v1/resolve?ref=vintasoftware/vinta-ai-workflows/validate-skill-md GET https://markdownregistry.com/api/v1/blob/c1067b72023c489a93afb7edd00a0d7dd263cb0367e22aca00f7f742778a9d42
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.