I don’t think there is, but I’m asking in case I missed it.
Use case: it’d be great to put a button on the homescreen to open the Reading List directly, or, better, to be able to query items on the reading list in order to filter them/present them in lists/etc.
If this doesn’t exist, consider it a feature request! Maybe the Reading List could be added to the list of Scopes in Shortcuts actions, or the item:
parameter could include readinglist
as a possible value.
Thanks!