I could equally ask - where are all the Excel workbooks that are actually _good_? No-one needs to share their Excel workbooks. They don't need 10k github stars. They just achieve some small goal of the Excel user. These LLM agents just need to do what the user needs doing at any moment.
(Sometimes, that can be a small part of a larger job in software, or a series of small parts perhaps - but again you are going to see this "show up" as a part of peoples workflow in maintaining enterprise software which is what most programmers are employed to do, in other words, you won't directly see it at all. And no, digital cameras didn't change the field 18 months after the first somewhat-usable one was released - it took quite a while for the technology to become good enough and cheap to democratize filmmaking).
They're busy using them. They're probably not GitHub users or HN readers. I've seen some really nice internal (business) apps made.
I didn’t have to take it on faith that people were actually making amazing things with digital cameras. I could look at them. I could reproduce it.