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Security scanner for AI agent skills (SKILL.md files and associated scripts).
Passed 18 of 22 test cases with the skill, and 15 of 22 without it.
and 1 more in the full report
4 fixed14 passed either way3 still failing1 broke
Tokens, turns and time describe resource use, not a dollar price.
The instructions your model reads when the skill loads.
A security scanner that analyzes AI agent skills for vulnerabilities, malicious behavior, and supply-chain risks before you install them.
AI agent skills are powerful — they extend what agents can do by providing instructions, scripts, and tool integrations. But that power comes with serious risk. Research from Snyk, Cisco, VirusTotal, and others has shown that a significant percentage of community-published skills contain critical security flaws, from exposed credentials to outright malware delivery.
This skill scans SKILL.md files and their associated scripts/resources to detect threats before they reach your system.
To scan a skill, run:
python3 scripts/scan_skill.py /path/to/skill-directory
Or scan just a SKILL.md file:
python3 scripts/scan_skill.py /path/to/SKILL.md
Or scan from a URL:
python3 scripts/scan_skill.py --url https://raw.githubusercontent.com/user/repo/main/skills/my-skill/SKILL.md
The scanner outputs a structured JSON report and a human-readable summary.
test cases passed, vs 15 / 22 without
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