An example of this in action is the utter inability to get deepseek v4 flash (even the new version) to stay concise. I have jumped through all sorts of hoops with deterministic checks, pre-message injection hooks, memory framework, etc and when it fails still and I ask why it essentially says "I forgot."

This makes it unreliable and preferences are things I need to assume are treated as exactly that, preferences, not hard settings.

It is an area where it is more like working with an unreliable human than I would prefer.