youtube-transcript-extract

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

• Third-party content exposure detected (high risk: 0.90). The SKILL.md instructs running "npx -y yt-subs" on a provided YouTube URL/ID to fetch title, description, metadata and full transcript from public YouTube videos (user-generated content), which the agent is expected to read and could influence downstream actions.

MEDIUM W012: Unverifiable external dependency detected (runtime URL that controls agent).

• Potentially malicious external URL detected (high risk: 0.80). The skill runs "npx -y yt-subs", which at runtime fetches and executes the remote npm package (e.g. https://registry.npmjs.org/yt-subs or https://www.npmjs.com/package/yt-subs), so required external code is executed during runtime.