Wow, thanks so much for the encouragement and advice, dang! I'm honored to receive a personal response from you and so soon after posting. I really appreciate the suggestion to post this as a Show HN. If I end up doing it, I'll definitely wait a bit–thanks for that suggestion, as I would have thought to do the opposite otherwise. Nice of you to offer to put it in the second-chance pool as well.
Hey, I just created a new tool called Super Grep that does exactly what you described.
I implemented a format-agnostic search that can match patterns across various naming conventions like camelCase, snake_case, PascalCase, kebab-case. If needed, I'll integrate in space-separated words.
I've just published the tool to PyPI, so you can easily install it using pip (`pip install super-grep`), and then you just run it from the command line with `super-grep`. You can let me know if you think there's a smarter name for it.