>I'd worry about trying to do this on purpose

You already have to juggle multiple writing styles between different people and use cases. It is easy to avoid submitting a pure stream of thought if you are writing a formal letter.

>there's an append-only procedure for fixing that, which I just demonstrated.

LLMs can figure out most typos on your own.

>you have to wait for LLM to finish.

I don't think any coding harnesses work like this. They let you send more messages to steer the model while it's working.