Before you start
Add tldraw's MCP App in Cursor (tldraw launched it there); there is no sign-in. The canvas only appears in agents that support MCP Apps. Canvases are saved on tldraw's server and removed after seven days without a save, so copy anything you want to keep into your project.
Draw the first version
Start with a flow you have to build soon, such as sign-up or checkout.
Say to CursorPlan a new user system for [my app] and map out the login flow on a tldraw canvas.
Change it by asking
The agent sees the canvas as it changes, so you can ask for revisions in plain words.
Say to CursorUpdate the diagram to include social sign-on through Google and GitHub.