Some good notes here from Rui Peres on meetings.

Honestly I’d expand a little on points 3,4, and 5. Only invite whoever is necessary, make sure someone is taking notes, and share those notes with everyone. I’m not sure this isn’t what he means. But I would make sure meeting notes are available/shared with everyone outside the meeting. This makes it easier to be specific about who you invite while keeping information open to those who weren’t invited.