Prefixing these utility scripts is a nice tip, I used to do that as well.

Some time ago I found sd [1] though. It's a light wrapper around your own scripts which provides namespaces, autocompletion, custom help texts + some other QoL enhancements around that. It improves discoverability and usability a lot, very happy with it.

[1]: https://github.com/ianthehenry/sd