Trust Assessment
api-health-check 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 unsanitized user input in shell commands.
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 unsanitized user input in shell commands The skill instructions describe executing various shell commands (`curl`, `dig`, `nc`, `watch`) where parts of the command (e.g., URL, host, port, interval) are expected to be derived from user input. If these user-provided inputs are not rigorously sanitized and shell-escaped before being interpolated into the command strings, an attacker could inject arbitrary shell commands. For instance, providing a malicious URL like `example.com; rm -rf /` could lead to unauthorized command execution and system compromise. This pattern is observed in multiple commands throughout the instructions. Implement robust input validation and shell escaping for all user-provided variables before they are used in shell commands. For example, in Python, use `subprocess.run` with `shell=False` and pass arguments as a list. For URLs, ensure they are properly URL-encoded and validated against a strict regex. For hostnames and ports, validate against expected formats. Avoid direct string concatenation of user input into shell commands. | LLM | SKILL.md:16 | |
| 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/api-health-check/SKILL.md:1 |
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