Bookify - Convert Markdown to PDF or EPUB

• Outcome: Pass
• Latest audit: May 29, 2026 at 8:37 PM UTC
• Version:
  1.0.1

Overview

This skill does what it says: it converts Markdown to PDF or EPUB using pinned npm tools, with normal supply-chain and browser-download considerations.

Install this only if you are comfortable running pinned npm packages from the npm registry. For sensitive documents, convert in a trusted or sandboxed environment, verify the md-bookify package/source first, and expect Puppeteer to download Chrome if it is not already available.

SkillSpector

By NVIDIA

Vulnerability Patterns

• Data Exfiltration: External Transmission, Env Variable Harvesting, File System Enumeration
• Prompt Injection: Instruction Override, Hidden Instructions, Exfiltration Commands
• Privilege Escalation: Excessive Permissions, Sudo/Root Execution, Credential Access
• Supply Chain: Unpinned Dependencies, External Script Fetching, Obfuscated Code
• Excessive Agency: Unrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (1)

Missing User Warnings

Medium

• Confidence: 94% confidence
• Finding: The skill authorizes execution of external npm packages via npx and may install Chromium, but the skill text does not clearly warn the user that running it can fetch and execute remote code and download a browser binary. This increases the risk of supply-chain exposure and unexpected networked tool execution, especially when invoked from a natural-language request that sounds like a simple document conversion task.

VirusTotal

66/66 vendors flagged this skill as clean.