Chat tag

Okay i know poeple say that you need to code this into your gamemode but i remember someone telling me about an addon? If thhere is an addon for this (working in latest update) could someone link it wiht some directions in a comment, thanks.
e.x
[owner]bmatchett
[user]brady:hey
[admin]tool:hey

You realize it’s not very hard to find something like this just search in google chat tags.