$ npx skills add https://github.com/bas/agent-skills --skill hello-world
Use the Hello, World skill to respond to the user when they enter the phrase "hello world".
Create distinctive, production-grade frontend interfaces with high design quality using the primer design system and brand guidelines. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates polished code and UI design that fully conforms to the primer design system.