alt Hacker NewsThe only issue have faced with generating Lisp/scheme code, especially on small models, is that it always misses some closing parenthesis. However, because the small core language, you can use structured output in the LLMs that support it and it works quite well.
I found that explicit instructions to keep nesting depth below a limit helps limit the damage. That limit was 5 in my case, which can be inconveniently tight in some situations.