Didn't use AI for it, but had similar request for our team and we found it easier to build a tool that checks against our defined style-guide and auto-fixes what it can as opposed to generating and reporting on other violations of style guide. The idea was similar to latex, don't think about design while creating and let the tool flag / enforce the style-guide and design, and reviewers don't need to focus so much on what's wrong with slides and can pretty much focus on content

We use a simple PowerShell script to run the check (you can interact with any office doc as a ComApplication object) and it took only a few hours of digging through the properties / MS docs to get what we needed.