Skcrew - this is an addon for the plugin Skript, expanding the capabilities of the language.

Supported skript versions: 2.6.x - 2.11x
(java 8 - 21)

Addon includes third-party code:

part of skript-db fork by Govindas
part of skript-gui code (modificated)
part of bitshift addon

documentations:

• official documentation
• skript hub docs:

The addon includes the following functionality:

• working with files and folders
• bitwise and logical operations with numbers
• plugin support floodgate and sending forms
• simplified creation of game GUIs
• parsing and executing code from text
• drawing on maps
• editing player permissions
• execution of commands on behalf of a player with operator rights
• implementation InventoryDragEvent and the expressions he needs
• asynchronous/synchronous web requests
• getting information about the technical components of the server
• interaction with SQL-like databases
• working with strings using regular expressions
• plugin support ViaVersion to get the players' version
• work with game worlds: create, upload, copy, delete
• support for proxy communication between servers ( Velocity , Bungeecord )
• working with packets: creating, sending, receiving, editing