I Built an AI-Friendly UI Pattern Library

The article discusses the problem of 'UI slop' in AI-generated web design, where coding agents over-rely on generic patterns like rounded cards, purple gradients, and serif typography. The author created a UI pattern library at antjanus.com/patterns, providing HTML, CSS, JavaScript, and prompts for coding agents. They also developed skills for typography, color systems, local-first apps, and UI/UX design, available via Skillbox. The UI/UX skill improved existing designs but struggled with novel UI creation. The article includes examples of AI-generated UI pitfalls and how the author iterated with Claude to create better designs, emphasizing the need for human guidance in AI-assisted development.