Audit OpenClaw skills for malicious code, excessive permissions, and supply chain vulnerabilities.
Category
Vulnerability scanning, credential protection, and incident response.
Difficulty & Skill
Overview
OpenClaw skills are powerful because they extend what your agent can do — but that power comes with risk. A skill with shell access can execute any command. A skill with fileRead and network permissions can read your secrets and send them anywhere. Most developers install skills from ClawHub, GitHub, or community forums without any security review.
Skill vetting is the practice of analyzing a skill before installation to check for red flags: overly broad permissions, suspicious code patterns, known malicious indicators, and mismatches between what the skill claims to do and what its permissions actually enable. OpenClaw's Skill Vetter makes this a 10-second check instead of a manual audit.
Making skill vetting a habit is the single most effective way to prevent security incidents in the OpenClaw ecosystem. The ClawHavoc campaign exploited the fact that most users install skills without review — don't be one of them.
How It Works
- Copy the SKILL.md content or point the agent at a ClawHub URL or local file
- Skill Vetter runs a fast pattern-matching analysis against known threat signatures
- It checks for red flags: overly broad permissions, suspicious shell commands, obfuscated code, and exfiltration patterns
- Each finding is classified as a red flag (high risk), warning (medium risk), or notice (informational)
- A pass/fail verdict is returned with a detailed breakdown of each finding
- For deeper analysis, you can escalate to Skill Auditor which performs comprehensive static analysis
Example Scenarios
- You find a useful-looking productivity skill on ClawHub — before installing, Skill Vetter flags that it requests shell access despite being a text-formatting tool
- A teammate shares a skill from a blog post — Skill Vetter identifies patterns matching the ClawHavoc malware family in the skill body
- Before onboarding a new team member, you batch-vet all 20 skills in your workspace and discover one with an unnecessarily broad permission set
- A skill update changes its permissions from fileRead-only to fileRead+network — Skill Vetter flags the permission escalation for review
- You are evaluating three competing skills for the same task — Skill Vetter helps you choose the one with the minimal permission surface
Frequently Asked Questions
How long does a skill vet take?
A few seconds. Skill Vetter is designed for speed — it checks for the most common and dangerous patterns without deep analysis. For thorough auditing, follow up with Skill Auditor.
What does a "red flag" mean?
A red flag indicates a pattern commonly associated with malicious skills — such as base64-encoded payloads, permission escalation tricks, or known ClawHavoc signatures. It does not guarantee the skill is malicious, but it warrants investigation.
Can I vet skills I have already installed?
Yes. Point Skill Vetter at any SKILL.md file on your system. It is good practice to periodically re-vet installed skills, especially after updates that might change permissions.