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Main Authors: Luo, Jinghao, Tian, Yuchen, Cao, Chuxue, Luo, Ziyang, Lin, Hongzhan, Li, Kaixin, Kong, Chuyi, Yang, Ruichao, Ma, Jing
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2605.06716
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author Luo, Jinghao
Tian, Yuchen
Cao, Chuxue
Luo, Ziyang
Lin, Hongzhan
Li, Kaixin
Kong, Chuyi
Yang, Ruichao
Ma, Jing
author_facet Luo, Jinghao
Tian, Yuchen
Cao, Chuxue
Luo, Ziyang
Lin, Hongzhan
Li, Kaixin
Kong, Chuyi
Yang, Ruichao
Ma, Jing
contents Large Language Model (LLM)-based agents have fundamentally reshaped artificial intelligence by integrating external tools and planning capabilities. While memory mechanisms have emerged as the architectural cornerstone of these systems, current research remains fragmented, oscillating between operating system engineering and cognitive science. This theoretical divide prevents a unified view of technological synthesis and a coherent evolutionary perspective. To bridge this gap, this survey proposes a novel evolutionary framework for LLM agent memory mechanisms, formalizing the development process into three stages: Storage (trajectory preservation), Reflection (trajectory refinement), and Experience (trajectory abstraction). We first formally define these three stages before analyzing the three core drivers of this evolution: the necessity for long-range consistency, the challenges in dynamic environments, and the ultimate goal of continual learning. Furthermore, we specifically explore two transformative mechanisms in the frontier Experience stage: proactive exploration and cross-trajectory abstraction. By synthesizing these disparate views, this work offers robust design principles and a clear roadmap for the development of next-generation LLM agents.
format Preprint
id arxiv_https___arxiv_org_abs_2605_06716
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle From Storage to Experience: A Survey on the Evolution of LLM Agent Memory Mechanisms
Luo, Jinghao
Tian, Yuchen
Cao, Chuxue
Luo, Ziyang
Lin, Hongzhan
Li, Kaixin
Kong, Chuyi
Yang, Ruichao
Ma, Jing
Artificial Intelligence
Computation and Language
Large Language Model (LLM)-based agents have fundamentally reshaped artificial intelligence by integrating external tools and planning capabilities. While memory mechanisms have emerged as the architectural cornerstone of these systems, current research remains fragmented, oscillating between operating system engineering and cognitive science. This theoretical divide prevents a unified view of technological synthesis and a coherent evolutionary perspective. To bridge this gap, this survey proposes a novel evolutionary framework for LLM agent memory mechanisms, formalizing the development process into three stages: Storage (trajectory preservation), Reflection (trajectory refinement), and Experience (trajectory abstraction). We first formally define these three stages before analyzing the three core drivers of this evolution: the necessity for long-range consistency, the challenges in dynamic environments, and the ultimate goal of continual learning. Furthermore, we specifically explore two transformative mechanisms in the frontier Experience stage: proactive exploration and cross-trajectory abstraction. By synthesizing these disparate views, this work offers robust design principles and a clear roadmap for the development of next-generation LLM agents.
title From Storage to Experience: A Survey on the Evolution of LLM Agent Memory Mechanisms
topic Artificial Intelligence
Computation and Language
url https://arxiv.org/abs/2605.06716