Player Data

About

Gives you the ability to modify the player using the vanilla /data command.

Warning

Although you can now access player data, please keep in mind that the player entity exists on both the client and server sides, meaning modification can cause desync.

For example, modifying a player's Motion tag via /data will not actually move them because the client-side is unaware of this change. If any command allows you to achieve your goal (such as /motion, /item, /clear, /damage etc.), always use that command instead of direct data modification.