vetting-skills-before-install SKILL.md skillA
vetting-skills-before-install from unboundcompute/security-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add unboundcompute/security-agent-skills/vetting-skills-before-install@git:20260818.ed96156Pins git:20260818.ed96156 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- unboundcompute/security-agent-skills
- Path
skills/vetting-skills-before-install/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260818.ed96156, committed Aug 18, 2026
- Size
- 7,238 bytes
- Repository stars
- 26
- License
- MIT
Vet an agent skill or MCP server before you install it, and reach a clear verdict: install, install with constraints, or deny. Combines an instruction-text audit, a declared-versus-used permission diff, and a bundled-code inspection for secret exfiltration (harvesting environment variables, credential files, or dotfiles and sending them out) and for obfuscation and install-time supply-chain risk (decode-then-execute, download-and-run on install, unpinned fetches). Pin the exact artifact you…
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
# Vetting skills before install: decide install, constrain, or deny with evidence Installing a skill or an MCP server hands untrusted instructions and untrusted code to an agent that acts on your behalf. Popularity and a clean README are not a review. This is the checklist that turns "it looks fine" into a verdict backed by evidence: what the artifact tells the model, what it is allowed to do, and what its code actually does on install and at runtime. It composes three audits and adds the code inspection that ties them together. ## When to use - You are about to add a third-party skill, MCP server, or marketplace entry. - You are re-reviewing an artifact after an update changed its code or manifest. - You need a defensible install decision, not a gut call. ## Scope check Vet artifacts you intend to run on your own agent, in a contained environment. Inspect bundled code statically before executing anything. If you can't name the authorization, stop. ## The loop 1. **Pin the exact artifact.** Record the source, the author, and the precise version or content hash. You vet one frozen artifact, not "the skill": a later …
Read the whole file at its exact version.
How to install
mdr add unboundcompute/security-agent-skills/vetting-skills-before-install@sha256:9cc3166c70d64ed0The line at the top of this page pins the label git:20260818.ed96156, 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_uue65z6kdus7xush)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 18, 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 (7238 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
unboundcompute/security-agent-skills · 26 stars · license MIT · pushed 2026-09-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uue65z6kdus7xush GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/vetting-skills-before-install GET https://markdownregistry.com/api/v1/blob/9cc3166c70d64ed01e5eb721cb373fe682a9182307f5d555925570eee6afd3d0
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.