I‘d really like to watch those 4 claude windows at once 100x developers in action.

For me, claude creates plenty of bugs and hallucinations with just one.

Anything besides extremely simple things or extremely overprompted commands comes out 100% broken and wrong.

Yeah. For this to work, something like git worktrees would be needed, or multiple clones of the repo. Claude loses the plot if you reject a change, and fix a line manually, and don’t tell it to explicitly recheck files. There’s no way this can be done in parallel on the same codebase without something like worktrees being used. Additionally, I can’t imagine, with how sweeping Claude’s changes can be, that there aren’t merge conflicts absolutely everywhere, crippling development speed.