It's just a ~~reduce~~ loop, with an API call to an LLM in the middle, and a data-structure to save the conversation messages and append them in next iterations of the loop. If you wanna get fancy, you can add other API calls, or access to your filesystem. Nothing to go crazy about...
Technically it's `scan`, not `reduce`, since every intermediate output is there too. But it's also kind of a trampoline (tail-call re-write for languages that don't support true tail calls), or it will be soon, since these things loose the plot and need to start over.
