Paper 5 · Question 48

A: The first user message is a weaker place for standing rules than the system prompt, and it is still one early turn that later replies can outweigh.

B: A new chat every 20 turns deletes the task the user is in the middle of.

C: Periodic injection of behavioral reminders directly combats instruction drift by re-establishing constraints at regular intervals as conversation history accumulates. Moving guidelines to the first user message (A) reduces their authority. Starting a new conversation (B) destroys context. Post-response validation (D) is corrective rather than preventive and adds significant latency.

D: Regenerating after a bad reply adds another call and still lets the drifted answer be the path the model was on.