It has always been extremely annoying to fight with people who mistake the ability of building or engaging with complicated systems (like your regex) with competency.
I work in building AI for a very complex application, and I used to be in the top 0.1% of Python programmers (by one metric) at my previous FAANG job, and Claude has completely removed any barriers I have between thinking and achieving. I have achieved internal SOTA for my company, alone, in 1 week, doing something that previously would have taken me months of work. Did I have to check that the AI did everything correctly? Sure. But I did that after saving months of implementation time so it was very worth it.
We're now in the age of being ideas-bound instead of implementation-bound.
Starting with week three the overall structure of the code base is done, but the actual implementation is lacking. Whenever I run out of tokens I just started programming by hand again. As you keep doing this, the code base becomes ever more familiar to you until you're at a point where you tear down the AI scaffolding in the places where it is lacking and keep it where it makes no difference.