I tried uploading our design system. Claude Design’s environment was so limited it had to reimplement it from scratch in HTML, JS and CSS. Doing that burned through more than half the token limit. Along the way it completely changed it and made up things that don’t fit in at all, neither visually or as code. The output of making a mockup is one huge HTML file with minified CSS that just can’t be used meaningfully for anything.

I guess I had expected something like Claude Code with visual tools added on top, but that’s not what this is.