This summary is not the rule. The rule text controls.
When someone files a cross-appeal in a Kansas appellate case, the other side gets to respond by writing a cross-appellee's brief. This brief should cover the same kind of ground that a regular appellee's brief would cover. It responds to the arguments raised against your side of the case.
The key rule here is about avoiding repeated material. If the appellant or cross-appellant already made a point, laid out certain facts, or cited specific legal authority in their brief, you should not repeat that same information word for word in your cross-appellee brief. Instead, you can simply point back to where that information appears in the other side's brief.
This approach keeps briefs shorter and easier to read. It also saves the court from having to read the same arguments or facts multiple times. If you're writing a cross-appellee brief, the practical takeaway is to focus on your own responses and arguments, and reference the other brief when you need to point to something already stated there.