Comment by sire-vc

I had a mysterious bug related to environment variables being different in managed (csharp) and unmanaged code. I told GPT 5.4 'here is how to reproduce the bug' (it only happened when certain shells were used) and told it to 'figure it out'. It just iterated, trying stuff to narrow it down before finally landing on the bug (it had to do with the unit test console runner). When I glanced at the logs, it was a basic 'try this, nope that didn't fix anything', add logging 'that fixed it, make sure it wasn't a timing issue etc, oops it was' etc. That's when I realised: nothing it did was anything I couldn't do, but what would have taken me a week of debugging took 10 minutes for the AI, and I could do something else at the same time.