Baseline UI is a specialized skill designed to polish and standardize interfaces built by AI agents, ensuring they meet professional production standards. It enforces an opinionated set of rules for Tailwind CSS, focusing on accessibility, optimal animation performance, typography scaling, and modern layout patterns. By integrating this skill, developers can automatically audit their UI code for common anti-patterns—such as inefficient animations, lack of keyboard accessibility, or improper viewport units—resulting in cleaner, more performant, and more reliable user interfaces that avoid typical AI-generated interface slop.