The way to get past the removing and adding is to have the prompt include what has already been done and what is left to do.

Then specify the need to conclude the work by a deadline.

These kinds of things cause the LLM to “finish” tasks and try to move on or say it is done when it is.

This won’t let you skip the curation of output along the way, but at least some of the stumbling around can be handled with prompting.