shadcn is the shadcn/ui project's own agent skill: it reads your components.json, then guides the agent to find, install, compose and style shadcn/ui components with the shadcn CLI and the project's rules.
shadcn/ui agent skills
shadcn/ui publishes 1 agent skill listed here, from shadcn-ui/ui (124,973 GitHub stars, last push October 1, 2026). The shadcn/ui project's own repository; its documentation at ui.shadcn.com/docs/skills tells readers to install this skill.