Here's why your AI designs all look the same. Without a reference library, Claude is guessing. Not just at the page layout. At the buttons, the cards, the effects. So I finally paid for 21st.dev ($6/month only) and I'm doing the boring part: 1. Going through the component catalog and saving what I actually like. 2. Folders for it. Badges. Filters. Pricing pages. Cards. Testimonial structures. 3. Claude Code gets the CLI, so it pulls from those folders when it designs. 4. Impeccable and Taste, the two GitHub repos for spotting AI slop, rebuilt as my own commands. Before Claude shows me a design it screenshots it on mobile and desktop, criticizes it and fixes it. Plus godly.design and Awwwards for inspiration, and a rule set: no Inter font, no gradients. Now when it designs, it's pulling from things I already chose instead of inventing a button and hoping. Six bucks a month. Everybody building with these tools should go through the exercise. What are you using to keep your AI builds from looking AI built?