web-design-guidelines

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

• Third-party content exposure detected (high risk: 1.00). The skill's SKILL.md requires the agent to "Fetch the latest guidelines" via WebFetch from the public raw GitHub URL https://raw.githubusercontent.com/vercel-labs/web-interface-guidelines/main/command.md and to apply those fetched rules to drive its review and output format, so untrusted third-party content can directly influence behavior and enable indirect prompt injection.

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

• Potentially malicious external URL detected (high risk: 1.00). The skill explicitly instructs fetching runtime rules from https://raw.githubusercontent.com/vercel-labs/web-interface-guidelines/main/command.md and using that fetched content to control the agent's review rules and output format, making it a required external source that directly controls prompts.