Harness-Induced Belief Divergence

Yi & Song: hold task, environment and base LLM fixed, vary only the harness, and the agent's elicited belief trajectory diverges — an interface-floor arrival term plus a growth term that reaches behavior (action disagreement 0.28→0.60, UnsafeRetryRate 0.700); the paper's 'preserves terminal success' framing is asserted, never measured.