Would it be possible for Mycroft to automatically be in listening mode (as if the wake word had been spoken) whenever it’s speaking? That way, if Mycroft starts speaking - and you didn’t intend for that - you could simply say, “Cancel” rather than “Hey Mycroft - cancel”. It’s a little thing and might seem trivial, but to me, it’s way more usable that way. Seems like it should be the default behavior. Maybe make it configurable in settings. Maybe even set it on a skill-by-skill basis.
Along the same lines, could Mycroft automatically go into listen mode for a few seconds after each time it speaks? Again, it’s a simple/silly little thing but it would be nice if Mycroft said something to me and I replied, “Thank you” (as I tend to do with Alexa) and Mycroft responded with, “You’re welcome.”