Comment by throwaway314155

> Started on an LLM app that looped outputs, saw this post soon after and scrapped it. It was better done by someone else.

If it helps, "TFA" was not the originator here and is merely simplifying concepts from fairly established implementations in the wild. As simonw mentions elsewhere, it goes back to at least the ReAct paper and maybe even more if you consider things like retrieval-augmented generation.