Trust Assessment
skill-compatibility-checker received a trust score of 10/100, placing it in the Untrusted category. This skill has significant security findings that require attention before use in production.
SkillShield's automated analysis identified 11 findings: 5 critical, 1 high, 3 medium, and 1 low severity. Key findings include Unsafe environment variable passthrough, Arbitrary command execution, Credential harvesting.
The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. The Manifest Analysis layer scored lowest at 0/100, indicating areas for improvement.
Last analyzed on February 12, 2026 (commit 13146e6a). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.
Layer Breakdown
Behavioral Risk Signals
Security Findings11
| Severity | Finding | Layer | Location | |
|---|---|---|---|---|
| CRITICAL | Arbitrary command execution Node.js child_process require Review all shell execution calls. Ensure commands are static (not built from user input), use absolute paths, and are strictly necessary. Prefer library APIs over shell commands. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:16 | |
| CRITICAL | Arbitrary command execution Node.js synchronous shell execution Review all shell execution calls. Ensure commands are static (not built from user input), use absolute paths, and are strictly necessary. Prefer library APIs over shell commands. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:117 | |
| CRITICAL | Arbitrary command execution Node.js synchronous shell execution Review all shell execution calls. Ensure commands are static (not built from user input), use absolute paths, and are strictly necessary. Prefer library APIs over shell commands. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:119 | |
| CRITICAL | Arbitrary command execution Node.js synchronous shell execution Review all shell execution calls. Ensure commands are static (not built from user input), use absolute paths, and are strictly necessary. Prefer library APIs over shell commands. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:471 | |
| CRITICAL | Credential harvesting Bulk environment variable dump Skills should only access environment variables they explicitly need. Bulk environment dumps (os.environ.copy, JSON.stringify(process.env)) are almost always malicious. Remove access to Keychain, GPG keys, and credential stores. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:176 | |
| HIGH | Unsafe environment variable passthrough Bulk environment variable harvesting Minimize environment variable exposure. Only pass required, non-sensitive variables to MCP servers. Use dedicated secret management instead of environment passthrough. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:176 | |
| MEDIUM | Unsafe deserialization / dynamic eval Decryption followed by code execution Remove obfuscated code execution patterns. Legitimate code does not need base64-encoded payloads executed via eval, encrypted-then-executed blobs, or dynamic attribute resolution to call system functions. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:177 | |
| MEDIUM | Unsafe deserialization / dynamic eval Decryption followed by code execution Remove obfuscated code execution patterns. Legitimate code does not need base64-encoded payloads executed via eval, encrypted-then-executed blobs, or dynamic attribute resolution to call system functions. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:283 | |
| MEDIUM | Unsafe deserialization / dynamic eval Decryption followed by code execution Remove obfuscated code execution patterns. Legitimate code does not need base64-encoded payloads executed via eval, encrypted-then-executed blobs, or dynamic attribute resolution to call system functions. | Manifest | skills/snail3d/clawd/skill-compatibility-checker-skill/scripts/checker.js:309 | |
| LOW | Node lockfile missing package.json is present but no lockfile was found (package-lock.json, pnpm-lock.yaml, or yarn.lock). Commit a lockfile for deterministic dependency resolution. | Dependencies | skills/snail3d/clawd/skill-compatibility-checker-skill/package.json | |
| INFO | Reliance on external security skill for core functionality The skill's core security scanning functionality relies on invoking an external skill, 'security-scanner-skill'. While this is an explicit design choice, the trustworthiness and security of 'security-scanner-skill' are critical supply chain considerations for the overall security posture of this skill. If 'security-scanner-skill' were compromised or malicious, it could undermine the integrity of the security checks performed by this skill. Ensure that 'security-scanner-skill' is obtained from a trusted source, regularly audited, and kept up-to-date. Implement mechanisms to verify the integrity of 'security-scanner-skill' before invocation. Consider sandboxing the execution of external security tools if possible. | LLM | scripts/checker.js:340 |
Scan History
Embed Code
[](https://skillshield.io/report/0d7e5b7f143a9485)
Powered by SkillShield