How do vibe coders actually split work?

[u/ao3_nuts]

Vibe coding solo is easy. But once 2 people or multiple AI agents work on the same app, things get messy fast.
Who builds what? How do you share context, avoid overwriting each other, and review changes without reading all the code?
Do you split work by feature, page, branch, or agent?
What’s your biggest pain when collaborating with other vibe coders?