Client-only command registration [1.16.5]

[Lunya]

I want to register a command for the client only, when logging into a third party vanilla server. For several days, I tried to implement this through:
 

public class comds implements CommandBase
{....}

but in 1.16.5 there is no such interface and also via:

@SubscribeEvent
public void CommandEvent(RegisterCommandsEvent ev) {
    commands.register(ev.getDispatcher());
}

And a few more methods that I managed to unearth. But in the end it didn't work out.
ADD: I would like to have my commands autocomplete. Therefore, I would like to avoid processing them through ClientChatEvent.

Edited December 30, 2021 by Lunya

[Luis_ST]

the vanilla commands are server-side, if you want to create custom client commands you need to implement them for your own via ClientChatEvent

8 hours ago, Lunya said:

I would like to have my commands autocomplete. Therefore, I would like to avoid processing them through ClientChatEvent.

look into vanilla

another option would be to update to 1.18.1 since there is at the moment a PR to Forge, about client-side commands