This includes x-ray texturepacks, bots such as baritone, and usage of scripts. Litematica, Badlion, Better PVP Fairplay edition, and Optifine are allowed. If you are caught with a hacked client you will be banned, whether you were cheating or not.
You are not allowed to trade anything outside of newwind for newwind items either. Exchanging newwind items for a newwind rank or visa versa is permitted because ranks are inside of newwind.
Abusing bugs before/instead of reporting them will not end well for you. If you find a bug, item duplication method, technique with means to generate currency at a quicker rate, or anything suspicious it must be reported immediately.
Do not dox/ddos/boot other players.
While this is not disallowed as such, if someone gets banned on an alt that you have used in the past there is a risk of you becoming part of the ban automatically.
No-one wants to see that.
Bans generally follow the format: 1st ban: 10 days + player-data file wipe, 2nd ban: permanent ban
The rules above can change depending on a number of factors, so players are recommended to look at the rules page regularly.