A research agent hands off to a writing agent by forwarding all 80 turns of its conversation history. The most significant problem is:
Answer: The writing agent's context window is consumed by irrelevant prior turns, leaving insufficient budget for writing
Forwarding full history (B) is the primary problem — the writing agent receives a context window mostly filled with the research conversation, leaving little room for writing. Reasoning leakage (A) is a secondary concern. There is no 80-turn API limit (D).