I tested here and its working for the Paper 1.8.8 version with Skript 2.2-Dev36! Only until 1.2 of Skript-Anvilgui (It is marked that I downloaded the version 1.10 but it is actually 1.2)

Doesn't work for 1.21.4, add support for 1.21.4 (using Skript 2.10.2) Thank you!

Very nice, works quite well! Would be cool if it supported TuSKe GUI syntax though, so that you don't need to listen for events in a seperate function.

Its a plugin not a skript. Also its pretty easy to make yourself. Useless but coded pretty good.

please update 400 lines My script is not working because addon is out of date so pls update

Doesn't work in version 1.20.4 (Using Skript version 2.6.4) I hope this addon gets updated!

Very useful for making anvil guis. Who need to use Anvil guis on their skript must download that addon

Beautiful 100% working addon. I recommend it for people who use skript. Useful. Especially for people who do not know how to program in plugin is very useful to make the GUI of the anvils that in law without anything you can not do.