Trust Assessment
scan-skill 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 6 findings: 5 critical, 0 high, 1 medium, and 0 low severity. Key findings include Arbitrary command execution, Excessive Bash permission declared.
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 14, 2026 (commit 13146e6a). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.
Layer Breakdown
Behavioral Risk Signals
Security Findings6
| Severity | Finding | Layer | Location | |
|---|---|---|---|---|
| CRITICAL | Arbitrary command execution Python shell execution (os.system, subprocess) 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/itsnishi/scan-skill/scripts/patterns.py:358 | |
| CRITICAL | Arbitrary command execution Python dynamic code execution (exec/eval/compile) 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/itsnishi/scan-skill/scripts/patterns.py:330 | |
| CRITICAL | Arbitrary command execution Python dynamic code execution (exec/eval/compile) 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/itsnishi/scan-skill/scripts/patterns.py:337 | |
| CRITICAL | Arbitrary command execution Python dynamic code execution (exec/eval/compile) 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/itsnishi/scan-skill/scripts/patterns.py:344 | |
| CRITICAL | Arbitrary command execution Python dynamic code execution (exec/eval/compile) 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/itsnishi/scan-skill/scripts/patterns.py:380 | |
| MEDIUM | Excessive Bash permission declared The skill's manifest declares 'Bash' as an allowed tool, granting it the ability to execute arbitrary shell commands. However, the provided Python code for `scan_skill.py` does not appear to utilize the 'Bash' tool directly. Granting broad shell execution permissions when not explicitly required by the current implementation increases the attack surface and potential for misuse if the skill were to be compromised or modified. Review the necessity of the 'Bash' tool. If the current implementation does not require it, remove 'Bash' from the 'allowed-tools' list in the manifest. If it is needed for future functionality or specific analysis not shown, ensure its usage is strictly controlled and justified. | LLM | SKILL.md:1 |
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