Here's one success I had -

https://github.com/sroerick/pakkun

It's git for ETL. I haven't looked at the code, but I've been using it pretty effectively for the last week or two. I wouldn't feel comfortable recommending it to anybody else, but it was basically one-shotted. I've been dogfooding it on a number of projects, had the LLM iterate on it a bit, and I'm generally very happy with the ergonomics.