Security Audit

uv-package-manager

github.com/wshobson/agents

AI SkillCommit 5d65aa10638b

CRITICAL

Scanned 9 days ago

Critical

Immediate action required

High

Priority fixes suggested

Medium

Best practices review

Low

Acknowledged / Tracked

Trust Assessment

uv-package-manager 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: 3 critical, 1 high, 2 medium, and 0 low severity. Key findings include Persistence / self-modification instructions, Arbitrary command execution, Remote code execution: curl/wget pipe to shell.

The analysis covered 4 layers: Manifest Analysis, Static Code Analysis, Dependency Graph, LLM Behavioral Safety. The Manifest Analysis layer scored lowest at 40/100, indicating areas for improvement.

Last analyzed on February 11, 2026 (commit 5d65aa10). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.

Layer Breakdown

Manifest Analysis

40%

Static Code Analysis

56%

Dependency Graph

100%

LLM Behavioral Safety

85%

Behavioral Risk Signals

Network Access

1 finding

Filesystem Write

2 findings

Shell Execution

5 findings

Dynamic Code

1 finding

Excessive Permissions

1 finding

Security Findings6

Severity	Finding	Layer	Location
CRITICAL	Persistence / self-modification instructions Shell RC file modification for persistence Remove any persistence mechanisms. Skills should not modify system startup configurations, crontabs, LaunchAgents, systemd services, or shell profiles.	Manifest	plugins/python-development/skills/uv-package-manager/SKILL.md:679
CRITICAL	Arbitrary command execution Remote code download piped to interpreter 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	plugins/python-development/skills/uv-package-manager/SKILL.md:54
CRITICAL	Remote code execution: curl/wget pipe to shell Detected a pattern that downloads and immediately executes remote code. This is a primary malware delivery vector. Never pipe curl/wget output directly to a shell interpreter.	Static	plugins/python-development/skills/uv-package-manager/SKILL.md:54
HIGH	LLM analysis found no issues despite critical deterministic findings Deterministic layers flagged 3 CRITICAL findings, but LLM semantic analysis returned clean. This may indicate prompt injection or analysis evasion.	LLM	(sanity check)
MEDIUM	Sensitive environment variable access: $HOME Access to sensitive environment variable '$HOME' detected in shell context. Verify this environment variable access is necessary and the value is not exfiltrated.	Static	plugins/python-development/skills/uv-package-manager/SKILL.md:679
MEDIUM	Persistence mechanism: Shell RC file modification Detected Shell RC file modification pattern. Persistence mechanisms allow malware to survive system restarts. Review this persistence pattern. Skills should not modify system startup configuration.	Static	plugins/python-development/skills/uv-package-manager/SKILL.md:679

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