So your going to want to close Archeage.
Go into Archebuddy
Click Menu
Click Account Management
Click The Paper Symbol with + Symbol
Add your info the new blank line.
Check the box off that you just made, click the play arrow.
Wait a couple minutes archeage client should launch and log you in.
You log into your server. Now Archeage is Synched with Archebuddy.
Now click menu again
Click Plugin Manager
These are the plugins that are built in so far, and available now if you check the forums you'll see a lot of different plugins in progress and being worked on
If you read the site a little bit more in the sections it will then explain how to use someone plugin and add into your plugin manager.
The bot is very new and requires people to code differnet plugin's. Just like for honor buddy, d3, etc. Within a few more weeks I think you'll see more plugins available.