coss-svelte

coss-svelte is a Svelte 5 copy-and-own component library inspired by COSS UI. It maps COSS's compact product UI language onto Svelte-native components, Bits UI behavior, and Tailwind CSS 4 tokens.

What this skill is for

Use this skill to:

• pick the right coss-svelte primitive for a UI task
• write correct Svelte usage code with documented imports and component parts
• preserve Svelte/Bits UI composition instead of copying React/Base UI APIs
• avoid shadcn, Radix, or COSS React migration mistakes
• respect current component status: stable, experimental, and deferred

Source of truth