[palakchokshi]

If user is allowed to add bots then you take away one thing from the meta-bot. The task of Discovering relevant bots. At the same time you limit the meta-bot from helping you out with a task if a bot for that task has not been installed by the user.

The meta-bot could technically suggest what bots to install if it does not find an installed bot to perform a task. In the current world of bots I think this would be a more optimal approach rather than a true meta-bot to bot transparent communication.

Also take into consideration that a meta-bot should provide proper attribution to whichever bot it chooses to perform the task otherwise you open yourself up to copyright infringement or equivalent.