Was bash the wrong language for my agent?

I have a small agent that handles one piece of routine work at a time. It looks at what needs doing, picks the thing most worth doing, shows me the plan, and does it if I say yes. Underneath, it is glue: it drives a few command-line tools, calls a model, reshapes a lot of JSON, and prints a readable summary. It was 2150 lines of bash across seven...