auditing-skill-and-mcp-instructions SKILL.md skillB
auditing-skill-and-mcp-instructions 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/auditing-skill-and-mcp-instructions@git:20260818.ed96156Pins git:20260818.ed96156 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- unboundcompute/security-agent-skills
- Path
skills/auditing-skill-and-mcp-instructions/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260818.ed96156, committed Aug 18, 2026
- Size
- 7,264 bytes
- Repository stars
- 26
- License
- MIT
Lint the natural-language instruction text of an agent skill or MCP server, not its code: the skill body, the frontmatter description, tool descriptions, and parameter text a model reads and obeys. Covers instructions hidden in comments or markup, invisible and look-alike Unicode, override phrases that countermand earlier instructions, concealment directives that tell the agent to hide an action from the user, and instructions that steer the agent to read secrets and send them out. Use when…
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
# Auditing skill and MCP instructions: the markdown is the attack surface Most reviews read a skill or an MCP server as code and skim the prose. But the prose is what the model obeys. A skill body, a tool description, a parameter hint: the model reads all of it as instruction, not as documentation. That makes the instruction text a first-class injection surface, and it is the one almost every tool ignores because scanners lint code, not markdown. This skill lints the words. ## When to use - You are reviewing a skill, an MCP server, or a marketplace entry before trusting it. - You want to know what instruction text will enter an agent's context on load. - You are triaging a skill that behaves in a way its visible instructions do not explain. ## Scope check Audit skills and servers you own or are authorized to review, on your own agent. Do not install untrusted artifacts outside a contained test. If you can't name the authorization, stop. ## The loop 1. **Gather the full instruction surface as the model sees it.** Collect every text the model actually reads: the skill body, the frontmatter description, …
Read the whole file at its exact version.
How to install
mdr add unboundcompute/security-agent-skills/auditing-skill-and-mcp-instructions@sha256:c7edb200d04489cfThe 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_eyf7hfkj23n5wwnw)
3 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
- fail: No prompt-injection phrasing (matched: ignore the previous instructions)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7264 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 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
unboundcompute/security-agent-skills · 26 stars · license MIT · pushed 2026-09-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_eyf7hfkj23n5wwnw GET https://markdownregistry.com/api/v1/resolve?ref=unboundcompute/security-agent-skills/auditing-skill-and-mcp-instructions GET https://markdownregistry.com/api/v1/blob/c7edb200d04489cf3a2373f2a1e212f111999018af5efcf93f41e5af6aaa2274
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.