In charity, I think there is actually a product opportunity for improvements to the standard shell histfile.
I've often been frustrated by my history not being easily shared between concurrent terminals, difficulties in searching, and lack of other metadata such as timestamp, duration and exit code.
Although I suspect this repo was vibe-coded so far, I think there's a promising problem to solve here.
Not at my computer so I cannot share the sauce, but each mahcine I use has a shared bash eternal history - shared between every interactive bash instance on that machine, using nothing but bashisms.
If I think of it later, I'll add it....
Then you should look at https://atuin.sh/ although I am not certain about exit code.
Why do you suspect it was vibe coded? There are 2 substantive files that are each less than 100 lines...
Also the readme doesn't have the usual emojis for every bullet point.
The godoc on logging.go is in the "AI style" rather than in the style of a typical godoc.
Comments on every other line stating what the line does is very LLM