Trust Assessment
budget-variance-analyzer 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, Arbitrary File Write via User-Controlled Path.
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 | Arbitrary File Write via User-Controlled Path The `export_variance_report` method directly uses the `output_path` parameter to create an Excel file. If this parameter is derived from untrusted user input, an attacker could exploit path traversal vulnerabilities (e.g., `../../../../tmp/malicious.xlsx`) to write files to arbitrary locations on the host system. This could lead to data overwriting, denial of service, or, in conjunction with other vulnerabilities, remote code execution. Sanitize the `output_path` parameter to prevent path traversal. Ensure it only contains a valid filename and is restricted to a designated, secure output directory (e.g., a temporary directory or a skill-specific sandbox). Implement strict input validation for `output_path` to disallow directory separators or absolute paths. Additionally, ensure the skill runs with the principle of least privilege, limiting its write access to only necessary directories. | LLM | SKILL.md:260 | |
| 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/datadrivenconstruction/budget-variance-analyzer/SKILL.md:1 |
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