This catches one of those accessibility issues that's easy to miss: using color alone to communicate something important. It scans your code for WCAG 1.4.1 violations, like error messages that are only red text or buttons that rely solely on color to show state. The skill comes from AccessLint, so it knows what to look for. You'd want this during code review or before shipping if you're working on any kind of form, dashboard, or interactive component where state changes matter. It's Level A compliance, which is baseline stuff, but also the kind of thing that trips up teams who haven't thought much about colorblind users or monochrome displays. Already has 245 installs and passes the main security audits.
npx skills add https://github.com/accesslint/claude-marketplace --skill use-of-color