If the script has massive mistakes (e.g. can't reach that!') messages on chatbox, fails everywhere etc. that is bad
But if the script is fine (which it currently is :P) then anti-ban solely depends on how you bot, so make sure you don't bot more than 12 hours a day, and 18 hours/day if using mirror mode. Make sure to log out during RS livestreams, bot busting streams, don't bot on multiple accounts same ip, make sure to reply to ingame chat, don't appear as a bot, and if you follow all of these, you won't have any problems with bans