Documented practical debugger workflow / tools?

I am looking for practical examples of effective debugging workflow in
ruby that is documented.

Currently, I see ruby documentation explain installation and running
ruby, starting with the most ancient standard input and ^D. But I
don’t see any real workflow examples of using whatever tools exist
there. I’ve read about debugging via text commands, but is this what
everyone is using and expected?

A documented debugging workflow can allow others to review and even
see if improvements can be made, but right now I can find extremely
little on the tools and interfaces used for effective
(time/usefulness) debugging in a ruby environment.