The approach sounds interesting but perhaps still too focused on current development paradigms.

Where shared collaboration I think becomes much more interesting is when agents start behaving like a member of your team. Not someone you delegate to, but someone that actively seeks out conversations and interacts with others as though they're just another member of the team.

You shouldn't be aware that version control is happening behind the scenes, you're just interacting with a persistent persona through Slack/teams/notion/figma/linear/etc with something that's logging issues, fixing bugs, writing PRDs, designing mockups, etc. The only point at which you know there's version control is when you're asked to review something before it's integrated.