Nice summary! Having been on both sides of this I know it’s a very tricky thing to get right. Especially when you’re within a team, and that team all has their own individual process.

A key callout for me – that you mention – is documenting changes. I’ve been involved in sprints, and InVision prototypes have changed half way through without anyone but the designer knowing. This leads to a lack of faith in the design and more often than not, the process itself. It’s crucial to keep developers onside with this stuff :-)