I need to update my post to emphasize this, but that's kind of the point.
Every one of these 14 tools (with the possible exception of the OpenAI Audio debugger one, that one's quite hard) is something any web programmer could build relatively quickly.
... but not as quickly as I did with an LLM, because they almost all took less than 5 minutes from idea to finished implementation.
The key point is that if I didn't have Claude to help build these, I wouldn't have built them at all. None of them would justify even an hour of work - they weren't essential tools that I needed to get stuff done, they were just things I built because building them is now so cheap (in terms of time) that there was no reason not to.
That's the real magic here. The cost of knocking out a single page app that does something simple is often now lower than even the cost of spending a few minutes on Google trying to find an existing tool that solves the same problem.