Vibe coders don't do test coverage. That's for old people.

Shame, adding tests, or at least some experiments would actually improve vibe coding by several factors. But perhaps it depends on what you are coding.

I would add note that TCL has a very comprehensive testing suite which makes it very easy to add test units.

https://wiki.tcl-lang.org/page/tcltest

Off-topic and nitpick: I just wish people wrote it as Tcl. When I say it out loud, I do say TCL, but in writing it is Tcl.

It's a fair point. I agree. TCL is now a known TV brand. My iPhone auto corrects it to TCL in capitals.

Yeah, no worries. I tell people the same when they say ADA instead of Ada. :D