ui-skills: Install a set of UI review specifications for AI coding agents

You use Cursor or Claude Code to let AI write a login page. The functions are all correct, the form can be submitted, and the buttons can be clicked. But after you stare at the screen for five seconds, you feel like something is wrong. The character spacing is erratic, the button sizes are inconsistent, there are seven or eight shades of gray, and the z-index of the pop-up window has soared to 9999. It can run, but it looks like someone who just learned to put together blocks and piled all the parts together haphazardly. It's not that your prompt is poorly written. It is the AI ​​coding agent that lacks a set of design constraints. It has seen millions of web pages and knows that cards need to have rounded corners and that navigation should be at the top, but it has no idea of ​​the design lessons that lie beneath the surface. Why there must be 24 pixels of space between title and body text and why animations are over 200