arXiv AI

Honest Lying: Understanding Memory Confabulation in Reflexive Agents

arXiv:2605. 29463v2 Announce Type: replace-cross Abstract: Reflexion-style agents rely on self-generated reflections as memory, implicitly assuming that agents can accurately diagnose their own failures.

arXiv AI
4d ago

Don't Just Trust Your Memory: Evidence-Linked Memory Reduces Memory-Induced Degradation in LLM Agents

The paper introduces WikiTrace, an evidence‑linked memory system for large language model agents that stores lessons alongside the original trajectories that produced them. By allowing agents to verify and refine lessons against their source data, WikiTrace reduces memory‑induced degradation—situations where agents fail tasks due to incorrect or misapplied lessons. Experiments on five agentic benchmarks show that WikiTrace consistently outperforms existing memory approaches and a baseline using the same insights alone.

By Yukyeong Lee, Yumin Choi, Jinheon Baek, Sung Ju Hwang
Hugging Face Trending Papers
5d ago

Don't Just Trust Your Memory: Evidence-Linked Memory Reduces Memory-Induced Degradation in LLM Agents

The paper introduces WikiTrace, an evidence‑linked memory system for large language model agents. WikiTrace stores each lesson as a concise insight tied to a summary of its success or failure and the raw trajectory that produced it, allowing agents to verify and correct lessons before applying them. Experiments on five agentic benchmarks show that WikiTrace outperforms existing memory approaches and reduces memory‑induced degradation.

Hugging Face Trending Papers
Jul 1

MemSyco-Bench: Benchmarking Sycophancy in Agent Memory

Memory has emerged as a cornerstone of modern LLM-based agents, supporting their evolution from single-turn assistants to long-term collaborators. However, memory is not always beneficial: retrieved memories often induce a critical issue of sycophancy, causing agents to over-align with the user at the cost of factual accuracy or objective reasoning.

arXiv AI
Oct 1

Beyond the Shadows of Plato's Cave: Evaluating False Memory in Autonomous Agents via Counterfactual Reasoning

The paper introduces FAME, a training‑free framework that evaluates false memory in autonomous agents by tracking how their internal beliefs shift under counterfactual scenarios. False memory, defined as biases arising from spurious correlations, environment shifts, or knowledge conflicts, is hard to detect with standard methods. FAME measures concept drift in hidden states, achieving AUROCs between 76.2% and 96.7% and outperforming baselines on benchmarks such as GSM‑Symbolic, GitChameleon, and BigBench‑Hard.

By Quan M. Tran, Zhuo Huang, Zhen Fang, Jing Zhang, Mingming Gong, Tongliang Liu
Hugging Face Trending Papers
Jul 7

Doomed from the Start: Early Abort of LLM Agent Episodes via a Recall-Controlled Probe Cascade

Large language model (LLM) agents solving multi-step tasks frequently commit to trajectories that are doomed to fail, yet continue to consume substantial inference compute before the failure becomes observable. We show that failure is predictable early from the agent's internal representations: lightweight per-round probes on hidden activations anticipate eventual episode failure as early as the first interaction round, where scorers reading only the agent's observable behavior are barely better than chance.

arXiv AI
Oct 2

Beyond Memory: Harnessing Long-Horizon Agents with Explicit Belief States

Beyond Memory: Harnessing Long-Horizon Agents with Explicit Belief States introduces PoS, an inference-time framework that builds and maintains explicit belief states to guide large language model agents. Each belief state combines an estimate of the current world with unresolved task requirements, making clear what the agent still needs to learn and accomplish. PoS validates consistency, monitors task progress to detect Belief Trapping, and tailors recovery to the trapping pattern and unresolved requirements, achieving top performance across four benchmarks with all three LLM backbones.

By Yu Luo, Jiamin Jiang, Yimin Zuo, Xidao Wen, Rongchen Gao, Yongqian Sun, Shenglin Zhang, Guiyang Liu, Cheng Zhang, Fang Situ, Qi Zhou, Dan Pei