We started with a DIY code review skill because it's inherent to want to customize to our codebase and infra before trying solutions that add layers which may get in our way here. We have a 1 page skill that that does seperate passes on security, spec conformance, proper DRY & architectural abstractions, etc, and adversarial result quality passes to prune & prioritize. Others do similar.
Lmk if there is any qs I can answer about Detail or the post.