Has anyone figured out how to get agents to reliably rewrite an entire spec to not be a list of historical findings?

Ie convert a history roll into an actual spec?

I find my agents can’t figure this out. And they always do stuff like append 2026-05-10: BIG LOAD BEARING UPDATE blah blah to the end of documentation, which ultimately confuses the thinking trace of future agents.

I would expect the same thing to happen here if the thread gets too large.