I just setup a large refactor with Astra and was feeling super lazy and let it mostly do it without my usual extreme micro managing.

The refactor ended up adding 22,000 loc.

I went in there and quickly read through it, laughed my ass off. Reverted the work tree. Micromanaged a new refactor. Net lines of code for something really elegant and easy to reason about was -3k loc in the project.

In case you are wondering why vibe coders are doing 30k loc a day, this is why.