Crabukit

Security scanner for OpenClaw skills with Clawdex integration. Analyzes SKILL.md and scripts for dangerous permissions, hardcoded secrets, shell injection vulnerabilities, and malicious code patterns. Automatically uses Clawdex database if installed for known-malicious skill detection. Use when (1) installing a skill from an untrusted source, (2) developing a skill before publishing, (3) auditing installed skills, or (4) running CI/CD security checks.

Security scanner for OpenClaw skills. Prevents installation of malicious or vulnerable skills by static analysis. Integrates with Clawdex for comprehensive protection.

Quick Start

bash

# Safely install a skill (scans before installing)
crabukit install youtube-summarize

# Scan a local skill before installing
crabukit scan ./suspicious-skill/

# Scan an installed skill
crabukit scan /opt/homebrew/lib/node_modules/clawdbot/skills/unknown-skill

# CI mode - fail on high severity or above
crabukit scan ./my-skill --fail-on=high

# List all detection rules
crabukit list-rules

🔌 Clawdex Integration

Crabukit automatically integrates with Clawdex if installed:

bash

# Install Clawdex for database-based protection
clawdhub install clawdex

# Now crabukit will:
# 1. Check Clawdex database (known 824+ malicious skills)
# 2. Run behavior analysis (zero-day detection)
# → Defense in depth!

Layered Protection:

• Clawdex: Database of known-bad skills (fast lookup)
• Crabukit: Behavior analysis for zero-days (static analysis)

What It Detects

Category	Issues
External DB	Known malicious skills (via Clawdex)
Secrets	Hardcoded API keys, private keys, passwords
Code Injection	eval(), exec(), subprocess(shell=True)
Shell Risks	curl | bash, rm -rf, unquoted variables
Permissions	Dangerous tool requests without safety guidance
Metadata	Suspicious patterns in SKILL.md descriptions

Risk Scoring

Crabukit assigns a score (0-100) based on findings:

Score	Level	Action
0	Clean	Safe to install
1-9	Low	Minor issues
10-24	Medium	Review findings
25-49	High	Careful review required
50+	Critical	Do not install

Exit Codes

• 0 - Scan completed, no findings at or above --fail-on threshold
• 1 - Findings at or above threshold detected

CI/CD Integration

yaml

# .github/workflows/security.yml
- name: Scan skill
  run: |
    pip install crabukit
    crabukit scan ./my-skill --fail-on=medium

Installation

bash

# Via ClawdHub (when published)
clawdhub install crabukit

# Or via pip
pip install crabukit

# Or from source
git clone https://github.com/tnbradley/crabukit.git
cd crabukit
pip install -e .