Functions used in scripts within a tool do nothing?

I'm building my own magic game where the user says a word and the word is stored as a string value and executed with a different script. However, I tried using the PlayerAdded function and it does not work within a regular script in the tool. It works fine when I use it in workspace though. Is this actually a thing? Chatted and CharacterAdded don't work either. Here is my code, made it super simple for testing and nothing is working:

game:GetService("Players").PlayerAdded:connect(function(plr)
	print("Test")
end)