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TAME: A Trustworthy Test-Time Evolution of Agent Memory with Systematic Benchmarking

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arxiv 2602.03224 v2 pith:JQKA46UQ submitted 2026-02-03 cs.AI cs.LG

TAME: A Trustworthy Test-Time Evolution of Agent Memory with Systematic Benchmarking

classification cs.AI cs.LG
keywords memoryevolutionagenttametaskbenchmarkbenignduring
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Test-time evolution of agent memory represents a pivotal paradigm for advancing AGI, as it strengthens complex reasoning through experience accumulation without requiring parameter updates. However, even during benign task evolution, agent safety alignment remains vulnerable, a phenomenon known as Agent Memory Misevolution. To evaluate this phenomenon, we construct the Trust-Memevo benchmark and find that agents exhibit an overall decline in trustworthiness across multiple tasks during benign task evolution. To address this issue, we propose TAME, a trust-aware memory evolution framework in which a shared memory bank is jointly governed by an Executor and an Evaluator. The Executor retrieves and applies transferable experiences to support task solving, while the Evaluator assesses the contribution of each utilized experience to the outcome and produces trust-aware feedback to guide subsequent memory use. This executor-evaluator loop enables memory to be selectively reinforced, cautiously reused, and continuously expanded over time. Experiments show that TAME mitigates memory misevolution while achieving strong task performance. In particular, on the GPT-5.2 AIME benchmark, TAME improves accuracy by 14.6 percentage points over the strongest existing method and maintains competitive trustworthiness.

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