What does the key "tool" mean in godot

[system]

	Attention	Topic was automatically imported from the old Question2Answer platform.
	Asked By	phucotaku

I have searched many documents about the keyword “tool” but I still can’t understand what this keyword means, can you explain it to me?

[system]

	Reply From:	kidscancode

tool causes the script to be executed in the editor. This is explained in the GDScript docs:

GDScript reference