# Heavy-Tailed Memory Traces in Long-Horizon Language Agents

**Published:** October 2, 2026
**Author:** Xinyuan Song, Zekun Cai
**Source:** arXiv — cs.AI
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/heavy-tailed-memory-traces-in-long-horizon-language-agents

Long-horizon language agents increasingly rely on external memory as a frozen world model, yet current memory systems are usually judged only by task success or token cost. We argue that the missing object is the shape of memory use: under finite context and repeated retrieval,…

> From the original source: **arXiv — cs.AI**
> [Read full article at arXiv — cs.AI](https://arxiv.org/abs/2610.00010)

**Tags:** #arXiv

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