ClawAudit — Security Auditor for Agent Skills
Static security analyzer for OpenClaw SKILL.md files. Detects prompt injection, credential exfiltration, obfuscated payloads, and dangerous capability combinations before you install.
What It Does
Paste or pipe any SKILL.md content and get back a trust score (0-100) with detailed findings.
Detects:
- Prompt injection and agent manipulation (including Unicode homoglyph evasion)
- Data exfiltration patterns (HTTP, DNS, encoded channels)
- Dangerous shell commands (curl|sh, /dev/tcp, process substitution)
- Credential harvesting (env vars, SSH keys, API tokens)
- Obfuscated payloads (base64, hex escapes, eval chains)
- Compound threats (e.g. file read + network out = exfiltration)
- Permission mismatches (undeclared capabilities)
Zone-aware analysis — understands markdown structure. Code blocks are weighted as executable instructions. Security documentation describing threats is not flagged as a threat itself.
Usage
Audit a skill before installing:
curl -s https://clauwdit.4worlds.dev/audit/author/skill-name
Or POST raw skill content:
curl -s -X POST https://clauwdit.4worlds.dev/audit \
-H "Content-Type: application/json" \
-d '{"skill":"author/skill-name"}'
Trust Tiers
| Score | Tier | Meaning |
|---|---|---|
| 80-100 | Trusted | No significant issues found |
| 60-79 | Moderate | Minor concerns, review recommended |
| 40-59 | Suspicious | Significant issues, use with caution |
| 0-39 | Dangerous | Critical threats detected, do not install |
Response Format
{
"trust": { "score": 85, "tier": "trusted" },
"findings": [
{
"severity": "medium",
"description": "Network request capability detected",
"zone": "code",
"line": 12
}
],
"capabilities": ["network_out", "file_read"],
"compoundThreats": [],
"permissionIntegrity": { "undeclared": [], "unused": [] }
}
About
Built by 4Worlds. Zone-aware static analysis with 60+ detection patterns, Unicode homoglyph normalization, and compound threat detection.