Prompt composer for chat UIs — an auto-growing textarea in a glass capsule with spring-in attachment chips, an optional model pill, and a send disc that morphs into a stop button while a light laps the border during generation. Enter/Shift+Enter/Escape, IME-safe, file paste, and labelled controls.
pnpm dlx shadcn@latest add "https://crucibleui.com/r/sluice.json"