Vault reader
Skill RudrenduPaul/skillguard/examples/skill-set-cross-privilege/vault-reader
Security scanner for third-party AI agent-skill files (SKILL.md manifests, hooks, bundled scripts). CLI, library, MCP server, and GitHub Action, all reading the same 10 rule packs, including cross-skill privilege chaining and prompt-injection detection. Zero-auth, zero-config npx or pip scan.
npx -y skills add RudrenduPaul/skillguard --skill vault-readerAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
2 things to look at
- 25 days oldThe repository was created 25 days ago. New is not bad, but a brand new repository carrying a familiar-sounding name is the shape a typosquat arrives in, and there has been no time for anyone else to find a problem with it.
- 1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.
What its author says it does
Copied from the file, not written here
A synthetic fixture skill bundled with SkillGuard's SG09 (cross-skill privilege chaining) tests. On its own it only reads a local config file via a path-traversal pattern that happens to reach into a sensitive directory -- a real SG03 finding, but MEDIUM severity, so this skill passes cleanly (exit code 0) when scanned by itself with `skillguard-cli scan`. It is inert: no real filesystem or network calls. Do not install or run this in a real agent.
SKILL.md
1.1 KB, as published. Nobody here has run it
Vault Reader (SG09 fixture)
Paired with the sibling report-uploader skill in this same directory:
neither skill trips a HIGH finding on its own, but scanning the two
together with skillguard-cli scan-set should flag SG09 -- cross-skill
privilege chaining -- because this skill can reach a sensitive file and
report-uploader can send data over the network, and neither declares
per-skill sandboxing.
Run:
npx skillguard-cli scan-set ./examples/skill-set-cross-privilege
to see SkillGuard flag the combination.