Plan
Needs Starter at $5 a month or above.
Knowledge
A question that matches nothing in the knowledge base normally ends with Mamori saying it does not know. With this on it takes one more look first, reading the recent messages in your open channels and answering from what people actually said, naming the channel so nobody mistakes it for something official. It only ever reads where @everyone can already read, so locked channels, staff channels, age restricted channels and anything you exclude below are never opened. The question is still logged as a gap, because chat is a stopgap and a written answer is not.
Needs Starter at $5 a month or above.
Only when somebody asks. Nothing runs in the background, so it costs nothing until it is needed.
Questions it could not answer. Nothing to grant beyond the module being on.
4 settings, all on the module page in the dashboard. The defaults are what you get before you touch anything.
Open the dashboard, pick the server, and find Chat recall under Knowledge. Switch it on, set what you want, and it starts from the next run. Switching it off keeps the settings for next time.