You could already do that by setting a _acme-challenge alias CNAME record, so you can point it to a domain that they control. It's a bit finnicky and the new setup definitely looks better for whitelabelling, but there are current workarounds; although it does still involve client DNS access, you can put it onto a zone that has no risks
Any chance you could share those sections of your claude file? I've been using Claude a bit lately but mostly with manual changes, not got much in the way of the claude file yet and interested in how to improve it
Things like large documents don't make that any easier though. Scrolling through a large document can take a while, but a scrollbar allows you to get to somewhere else often quite a lot faster.
Imagine you cmd + F a phrase and there are 200 responses separated into like 4 chunks of a document. It can be useful to scroll to the start of each chunk to get the context of them.