arXiv AI By Bowen Ye, Yongchao Xu, Junkai Ma, Xiang Yin, Wenzhao Li

Principles that Guide, Actions that Inform: Agent Evolution via Knowledge Abstraction

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The paper introduces SAGA, a framework that enables large language model agents to evolve by abstracting experiences into reusable principles, procedures, and episodic descriptions. SAGA transforms interaction trajectories into hierarchical knowledge with explicit applicability conditions, linking them back to execution evidence. Experiments on ScienceWorld and ALFWorld show that this execution–abstraction feedback loop improves task performance, and ablation studies confirm the importance of contextual instantiation and action regulation.

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