What You Can Check
Acrolinx for Oxygen XML Web Author checks your XML and DITA documents.
You can also check DITA maps, and the following DITA references:
When you check a DITA map or DITA reference, the Sidebar doesn't highlight issues in the text or replace issues for you. The cards give you all the information you need to correct your content. And you can edit your issues directly and use all the other features of the Sidebar.
DITA map and DITA reference support is available with Core Platform 2019.10 and later.