web-design-guidelines

No malicious behavior observed in this skill definition. The functionality (fetching guidelines from a public GitHub raw URL and reading user-specified files to apply those rules) is consistent with the declared purpose. The only notable supply-chain risk is the runtime fetch of external rules: if the remote file is replaced by an attacker, the skill's behavior could be influenced. Recommend pinning the rules file to a specific commit or adding validation if strict immutability is required.