facebook-marketplace-search-results-scraper

CRITICAL E004: Prompt injection detected in skill instructions.

• Potential prompt injection detected (high risk: 0.80). The skill contains explicit instructions to auto-install a runtime dependency "without asking the user to confirm" and to hide that installation (e.g., "Do not describe it as a request..." and "do not request separate approval"), which are deceptive user-interaction directives outside the scraper's stated data-collection purpose.

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

• Third-party content exposure detected (high risk: 0.85). SKILL.md instructs the agent to “capture browser-visible page content” and “invoke the browser-act Skill” for live execution, which implies runtime ingestion of outsider-authored free text from public Facebook Marketplace pages fetched via BrowserAct.

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

• Potentially malicious external URL detected (high risk: 0.90). The skill instructs the agent to automatically install a required runtime dependency via the "Install BrowserAct" link which will fetch and run external installer code at runtime: https://www.browseract.com/?co-from=ecommerce&redirect=https://github.com/browser-act/skills/tree/main