Security Audit

pdf-api-io-automation

github.com/ComposioHQ/awesome-claude-skills

AI SkillCommit 99e2a2951545

TRUSTED

Scanned 6 days ago

Critical

Immediate action required

High

Priority fixes suggested

Medium

Best practices review

Low

Acknowledged / Tracked

Trust Assessment

pdf-api-io-automation received a trust score of 95/100, placing it in the Trusted category. This skill has passed all critical security checks and demonstrates strong security practices.

SkillShield's automated analysis identified 1 finding: 0 critical, 0 high, 1 medium, and 0 low severity. Key findings include Generic Rube MCP execution tools enable broad capabilities.

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 17, 2026 (commit 99e2a295). SkillShield performs automated 4-layer security analysis on AI skills and MCP servers.

Layer Breakdown

Manifest Analysis

100%

Static Code Analysis

100%

Dependency Graph

100%

LLM Behavioral Safety

93%

Behavioral Risk Signals

Shell Execution

1 finding

Excessive Permissions

1 finding

Security Findings1

Severity	Finding	Layer	Location
MEDIUM	Generic Rube MCP execution tools enable broad capabilities The skill instructs the LLM to use `RUBE_MULTI_EXECUTE_TOOL` and `RUBE_REMOTE_WORKBENCH`, which are generic execution tools provided by the Rube MCP. While the skill guides the LLM to search for 'PDF API IO operations' using `RUBE_SEARCH_TOOLS`, these execution tools themselves do not inherently restrict execution to only PDF-related tasks. If the Rube MCP allows these tools to execute arbitrary tools beyond the intended 'PDF API IO' scope, a malicious prompt could potentially manipulate the LLM to execute unintended or privileged operations via these generic execution mechanisms. The skill's reliance on these generic tools, without explicit in-skill scoping, introduces a dependency on the Rube MCP's internal security mechanisms to enforce tool access control. Ensure the Rube MCP strictly scopes the tools available to `RUBE_MULTI_EXECUTE_TOOL` and `RUBE_REMOTE_WORKBENCH` based on the context (e.g., the `use_case` provided to `RUBE_SEARCH_TOOLS` or the specific skill's manifest). Alternatively, if possible, use more narrowly scoped Rube tools that are specific to PDF operations rather than generic execution.	LLM	SKILL.md:45

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