It provides an instruction and knowledge layer that transforms Claude into a senior design architect capable of generating DTCG design tokens, designing components with accessibility specs, producing code for any framework, auditing against WCAG 2.2, and applying 138 design system aesthetics.
Most valuable when establishing design systems, creating accessible UI components from scratch, migrating between design systems, auditing existing interfaces for WCAG compliance, or needing consistent design tokens and framework-agnostic component specifications.