The Design Brief skill is the essential first step in the design-crit pipeline, designed to bridge the gap between technical requirements and visual design. It intelligently scans your repository to detect tech stacks, UI libraries, and existing screen patterns, then conducts a conversational interview to fill in gaps regarding user personas, core interaction loops, and project differentiators. By formalizing these constraints into a standardized markdown brief and a read-only HTML dashboard, it ensures that subsequent design iterations are focused, relevant, and technically feasible.