How can I type $page.data more specifically?

[205g0]

export let data: PageData provides the specific type for a specific path, the respective +page.server.ts and its parent +layout.server.ts. In contrast $page.data can only be typed via app.d.ts for the entire app/all paths.

Can I somehow get the former (specific and inferring) behavior for $page.data too?

[cdcarson]

I'm pretty sure this can't happen automatically -- i.e. the inferred shape of $page.data does not pick up the shape defined in ./$types relative to where you reference it. You've got to use type guards, or just wing it.