[jptlnk]

What's 'this', do you mean the command pattern being described? If so, yes - I've used it to great effect, if the code around it is designed properly. It's even amenable to evals if you can write the LLM call as a function that operates on some state:

  (document, input) -> command  
  (document, command) -> document'  
  # assert something about document' relative to document

[t-writescode]

Chiming in, this is exactly how I use LLMs in my yet-to-be-released product. Document reading, parsing, organizing, distilling

Synonym+context finding, rewriting text based on rules, etc.

Works not terribly for that! Sometimes needs a couple passes to get it right; but let it run a few times, put it in the background, and you're off to the races!