Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".
85
Quality
81%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Advisory
Suggest reviewing before use
Security
2 findings — 2 medium severity. This skill can be installed but you should review these findings before use.
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Third-party content exposure detected (high risk: 1.00). The SKILL.md explicitly tells the agent to "Fetch the latest guidelines" from the public URL https://raw.githubusercontent.com/vercel-labs/web-interface-guidelines/main/command.md (via WebFetch) and to apply those fetched rules/instructions to drive its review/output, which means untrusted third‑party content can directly influence the agent's behavior.
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Potentially malicious external URL detected (high risk: 0.90). The skill instructs the agent to fetch and use the remote guidelines at runtime (https://raw.githubusercontent.com/vercel-labs/web-interface-guidelines/main/command.md), and that fetched content directly supplies the rules and output-format instructions that will control the agent's behavior.
355d067
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