I've been thinking it would be sweet to have a module that generates a very visual technical summary of a Drupal site. Such as:
- a sitemap showing which menu items point to views, panels, nodes, callbacks from contrib modules, etc.
- a data model schematic showing what content types exist, what node references they make to each other, what taxonomies they're in, and maybe which roles have permissions on which content types.
- a graph which lists the site's pages in order of their arrangement in the menu, and shows which blocks appear on which pages.
Not that I know how to make this thing, mind you.
This would be a reference tool for site developers & maintainers, for those rare *hurumph* cases where the site's build was inadequately documented.