That's certainly a good example of a tool developed quickly thanks to AI assistance.

But coding assistance tools must themselves be evaluated by what they produce. We won't see significant economic growth through using AI tools to build other AI tools recursively unless the there are companies using these tools to make enough money to justify the whole stack.

I believe there are teams out there producing software that people are willing to pay for faster than they did before. But if we were on the verge of rapid economic growth, I would expect HN commenters to be able to rattle these off by the dozen.