About
Arco is the generative UI library inside Kosmos. Instead of replying in text alone, an agent can answer with cards and components drawn from a shared design system, in the same session as the rest of the work.
It has its own documentation site and an open repository. The demo page here shows the card renderer with made-up content.
What it does
Typed cards, not walls of text
An agent picks typed cards from a fixed vocabulary, and Arco draws them themed and consistent.
Nine block types
Task lists, stats, calendars, weather and more. Each type has its own schema in the card prototype.
Live demo
Pick a prompt and watch the agent reply and the cards stream into the feed one by one. It is scripted: nothing is sent over the network.
Design tokens
Light and dark surfaces and a single accent, so a generated screen looks like the rest of the system.
Documentation
The library has its own docs site with guides and a reference.
The Pitch
Let the agent answer with an interface
Read the docs for the components, or open the demo to see cards rendered.
Gallery
