Guides

The library docs say what each piece does. These guides say which piece to reach for and why, from what the lab proved. Each links to the lab scenarios that show it working.

Guide	Read it when
Choosing a generative UI tier	You're deciding how an answer should look, and where it goes
Canvases, the workspace and state ownership	A canvas should follow the agents, and the agents should see what the person sees
Questions, approvals and sub-agents in the UI	An agent needs the person, or delegates to agents the person should see
MCP Apps as host and as viewer	A partner's app should show in your chat, or your canvas in someone else's host
Testing with scripted models and recorded streams	You want tests that don't depend on a model, and numbers that do