Part of my process it to work a compliance list from Skybox (or Tufin, or AlgoSec). I investigate the rule and mark it for remediation. When I have done the first pass, I create a Firewall Change Request in Skybox per fw by lines marked for remediation. At this time, I can snapshot the rule. Then the change request is fulfilled. I then go back and validate the rule changes. Here, I clean up the tag for remediation (I don't use tags, but write "Remediate" in the rule name). At this point, I can snapshot the result. All because auditors want pictures as 'proof'. It is much easier to run web_api_show_package before and after and show the comparison, but they won't accept that. You would swear they get a royalty from one of the screen capture companies (I use ScreenPresso (purchased), so they are not getting anything there.)
Edit - this syntax works in R81.10
$MDS_FWDIR/scripts/web_api_show_package.sh -o /var/log/output -k <Policy_Name> -c -d <domain ip or name> --show-membership false
whereas /var/log/output is an existing directory.
Edit # 3 - In the second pass, I also use logs to verify the traffic (Start with Rule UID). With information I get in the log analysis, I see if there can be rule optimization that might 'fix' it by combination or tweak.