# Task workspace app shell with collapsible floating sidebar and a toggleable AI chat assistant panel

> Three-panel to-do shell: floating Sidebar with task lists, count Badges, color tags and a Progress focus card, plus a toggleable AI chat panel (in-flow at desktop, Sheet on mobile). Built on ReUI Badge, shadcn Sidebar, Dialog, DropdownMenu.

A paid shadcn/ui block sold by the [@reui](https://reui.io/?utm_source=shadcn.exchange) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/reui/app-shell-18).

- Page, with a preview: https://shadcn.exchange/r/reui/app-shell-18
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/reui/app-shell-18-light-00d1704febd45b8e.png
- Listed: 2026-10-13

## Buy and install

@reui sells this block, and its code is not on shadcn.exchange. Buy it from the registry, which installs it for those who have: https://shadcn.exchange/out/reui/app-shell-18

## Dependencies

- npm packages: `cn`, `next-themes`
- Registry items: `@reui/badge`, `avatar`, `button`, `dialog`, `dropdown-menu`, `field`, `input`, `item`, `kbd`, `progress`, `separator`, `sheet`, `sidebar`, `textarea`