Modern LLMs have absolutely no issue with writing reasonably good Common Lisp without a kilometer of prompts. It's true that you did need this a year or two ago, but not anymore. In fact, LLMs can even write Coalton pretty well if you prefer strong, static typed all the way through.

Lisp isn't some language wild west lacking style and idioms—regardless of whether there's a "go fmt" for it or not. Most open source Lisp code is quite standard and "boring": functions and classes/structs following canonical indentation.