Scan ClawHub skills for security vulnerabilities BEFORE installing. Use when installing new skills from ClawHub to detect prompt injections, malware payloads, hardcoded secrets, and other threats. Wra
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The only pre-install security gate for ClawHub skills.
| VirusTotal (ClawHub built-in) | skillscanner (Gen Digital) | skill-guard | |
|---|---|---|---|
| When it runs | After publish (server-side) | On-demand lookup | Before install (client-side) |
| What it checks | Malware signatures | Their database | Actual skill content |
| Prompt injections | ❌ | ❌ | ✅ |
| Data exfiltration URLs | ❌ | ❌ | ✅ |
| Hidden instructions | ❌ | ❌ | ✅ |
| AI-specific threats | ❌ | ❌ | ✅ |
| Install blocking | ❌ | ❌ | ✅ |
VirusTotal catches known malware binaries — but won't flag
<!-- IGNORE PREVIOUS INSTRUCTIONS -->skillscanner checks if Gen Digital has reviewed it — but can't scan new or updated skills.
skill-guard uses mcp-scan (Invariant Labs, acquired by Snyk) to analyze what's actually in the skill, catches AI-specific threats, and blocks install if issues are found.
Skills can contain:
One bad skill = compromised agent. Your agent trusts skills implicitly.
# Instead of: clawhub install some-skill ./scripts/safe-install.sh some-skill
skill-guard:
/tmp/Real example — skill-guard flagged this malicious skill:
● [E004]: Prompt injection detected (high risk) ● [E006]: Malicious code pattern detected ● [W007]: Insecure credential handling ● [W008]: Machine state compromise attempt ● [W011]: Third-party content exposure
VirusTotal: 0/76 engines. mcp-scan caught what antivirus missed.
# Secure install (recommended) ./scripts/safe-install.sh <skill-slug>With version
./scripts/safe-install.sh <skill-slug> --version 1.2.3
Force overwrite
./scripts/safe-install.sh <skill-slug> --force
| Code | Meaning | Action |
|---|---|---|
| Clean | Skill installed ✓ |
| Error | Check dependencies/network |
| Threats found | Skill quarantined in |
Skill stays in
/tmp/skill-guard-staging/skills/<slug>/mv /tmp/skill-guard-staging/skills/<slug> ~/.openclaw/workspace/skills/rm -rf /tmp/skill-guard-staging/clawhubnpm i -g clawhubuvcurl -LsSf https://astral.sh/uv/install.sh | shYour agent has access to your files, messages, maybe your whole machine. One malicious skill can:
Trust, but verify. Scan before you install.
No automatic installation available. Please visit the source repository for installation instructions.
View Installation Instructions
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