@amitgupta oh, so it doesn't just need to figure it out when first scanning the project, to remember and use that information later? What about adding it manually to the guidelines?

The new location of the stacked layout application UI components from tailwind is: tailwindcss.com/plus/ui-blocks/application-ui/application-shells/stacked

Looks like tailwindui.com was absorbed into tailwindcss.com in the last year and now lives under tailwindcss.com/plus

You have to click UI-Blocks instead of Components now too.

Leaving this hear so the next person doesn't have to take as long to figure this out as I did.