Right now there is the merge (not sure exactly what the name is) check for style. But reviewers still need to click on the details page to see if any are relevant. It could be useful to provide a button next to the details link that will have the style checker comment on the lines it thinks have issues. We may not want this all the time because it could become quite noisy, which happened back in the day on bugzilla. Thus, a button or some other user initiated trigger would be my recommendation.
<rdar://problem/95695974>