做智能体持续学习和记忆设计的团队，AgentCL提供了比现有基准更严格的评估方法，能帮你诊断记忆设计在跨任务复用中的真实效果，值得参考。
语言智能体在单个任务上花费大量推理时间，但跨任务的经验复用不足。现有基准难以严格评估持续学习，多聚焦长上下文检索或简单任务流，缺乏对跨任务关系的分析。本文提出AgentCL框架，通过受控任务流和迁移增益指标，评估智能体能否积累可复用经验、随时间改进并避免干扰。实验表明，受控流比简单流更能区分记忆设计的可塑性，而简单流和保留设置常暴露记忆导致的性能退化。该工作为设计平衡可塑性与稳定复用的记忆系统提供了方向。
AGENTCL: Toward Rigorous Evaluation of Continual Learning in Language Agents
Language agents spend substantial inference time solving individual tasks, yet the experience acquired in one episode is often underutilized in future episodes. Continual learning expects an agent to accumulate reusable experience across a stream of tasks, improve over time, and avoid interference from irrelevant experiences. Unfortunately, existing benchmarks struggle to evaluate continual learning in language agents rigorously. Most efforts focus on retrieval and reasoning over long-context conversations or documents, while recent lifelong-adaptation benchmarks often rely on naive task streams with limited analysis of cross-task relationships, making it difficult to understand what an agent learns and reuses over time. This paper presents an evaluation framework AgentCL for continual learning in agents, centered on controlled task streams and metrics for transfer gains. AGENTCL constructs compositional streams where earlier sub-solutions, evidence, or workflows are intentionally reusable in later tasks, and contrasts them with naive streams where such reusability is not guaranteed. We use the benchmark to evaluate non-parametric memory designs for continual learning. To diagnose how memory design choices affect continual learning, we develop MemProbe, a probing method that stores interactions, insights, and skills, while filtering unreliable experiences during consolidation. Empirical analysis across coding, deep research, and language understanding/reasoning tasks shows that naive streams offer limited ability to distinguish memory designs, whereas controlled streams more clearly distinguish their plasticity. Meanwhile, naive and held-out settings often yield limited gains and can expose memory-induced degradation. These results highlight the need for stronger memory designs that balance plasticity and stable reuse.