I got tired of seeing it, so I built a fix. Ask Claude Code, Cursor, Codex, Gemini, whatever, to “build me a landing page.” You already know what comes back. Purple gradient. Inter. Centered hero. Three cards. Pill buttons. Maybe some glassmorphism if it is feeling fancy. That is not really the model being stupid. It is the model doing exactly what you asked it to do with no taste constraints. If you leave every design decision blank, the model fills those blanks with the average of the web. And the average of the web looks like slop. The thing I kept noticing is that there is not just one kind of AI slop. There are three: 1. The look Purple gradients, beige editorial templates, generic SaaS polish. 2. The structure Centered hero, three-card grid, equal sections, nothing with a real layout opinion. 3. The copy “Delve,” “in today’s fast-paced world,” “not just X, but Y.” You do not fix that by asking the model to “make it better.” That just gets you cleaner slop. You fix it by removing the blanks before the model starts guessing. So I built tastecheck. It is a free MIT skill pack for AI coding agents. The main skill does not just clean up bad UI after the fact. It interviews you before the build starts. It asks opinionated questions like: - What site would you actually be okay resembling? - Are we going warm or cool? - What is the one dominant color? - What should this feel like to use? - What are we absolutely not doing? Then it turns those answers into a real design direction: type, color, tokens, layout rules, interaction states, accessibility checks, and the rest of the system the agent should follow. The pack has 14 skills total: - typography - color - layout - responsive behavior - component states - forms - dark mode - motion - empty states - data visualization - accessibility - cognitive accessibility - design review - and the main taste interview The test I care about most: I took the same content and ran it through five different design systems.