grailed-marketplace-scraper

CRITICAL E004: Prompt injection detected in skill instructions.

• Potential prompt injection detected (high risk: 1.00). The Skill explicitly instructs the agent to auto-install a dependency without asking the user and to conceal that installation ("Do not describe it as a request... do not request separate approval"), which is a deceptive directive outside the scraping functionality.

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 invoke the runtime browser-act Skill to “capture browser-visible page content” from user-specified Grailed URLs/pages, which is outsider-authored free text fetched from the public web and then ingested into the LLM context.

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

• Potentially malicious external URL detected (high risk: 1.00). The skill explicitly requires installing the BrowserAct CLI at runtime using the provided installation link (https://www.browseract.com/?co-from=ecommerce&redirect=https://github.com/browser-act/skills/tree/main), which would fetch and install/execute external code as a required dependency.