Trust Assessment
site-uptime-monitor received a trust score of 79/100, placing it in the Mostly Trusted category. This skill has passed most security checks with only minor considerations noted.
SkillShield's automated analysis identified 2 findings: 0 critical, 1 high, 1 medium, and 0 low severity. Key findings include Missing required field: name, Potential Command Injection via User-Controlled URL in `curl`.
The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. All layers scored 70 or above, reflecting consistent security practices.
Last analyzed on February 13, 2026 (commit 13146e6a). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.
Layer Breakdown
Behavioral Risk Signals
Security Findings2
| Severity | Finding | Layer | Location | |
|---|---|---|---|---|
| HIGH | Potential Command Injection via User-Controlled URL in `curl` The skill description explicitly states that it uses `curl` via a `bash` command to check website uptime and performance, with user-provided URLs. If the user-supplied URL is directly interpolated into the shell command without robust sanitization or escaping, a malicious user could inject arbitrary shell commands. For example, a URL like `example.com; rm -rf /` could lead to severe system compromise, including data exfiltration or denial of service. Implement robust input validation and sanitization for all user-provided parameters, especially URLs, before constructing shell commands. Prefer using a language-specific HTTP client library (e.g., `requests` in Python, `fetch` in Node.js) instead of shelling out to `curl` to avoid command injection risks. If shelling out is unavoidable, use `shlex.quote()` (Python) or similar functions to properly escape user input. | LLM | SKILL.md:26 | |
| MEDIUM | Missing required field: name The 'name' field is required for claude_code skills but is missing from frontmatter. Add a 'name' field to the SKILL.md frontmatter. | Static | skills/sa9saq/site-uptime-monitor/SKILL.md:1 |
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