This covers the full product design workflow from user research through dev handoff, with practical templates for journey mapping, design systems, and usability testing. It includes Nielsen's heuristics checker, design token generators, and structured critique tools that output severity ratings and compliance scores. The 5-day design sprint format and component library templates make it useful for both solo designers and team leads who need to standardize processes. Most valuable for translating abstract design thinking into concrete deliverables like JSON design tokens, usability test plans with success metrics, and accessibility checklists that actually get used.
npx skills add https://github.com/borghei/claude-skills --skill product-designer