# Contiguity, Not Importance: Budgeted Repair of Stale KV Caches After Document Edits

**Published:** September 17, 2026
**Author:** Mingyang Mao, Wyatt Mackey, Xiaomin Lin
**Source:** arXiv — cs.AI
**Language:** en-US
**HTML:** https://aiqazaqstan.com/en/articles/contiguity-not-importance-budgeted-repair-of-stale-kv-caches-after-docum

KV-cache reuse can reduce inference cost in retrieval-augmented generation and agentic systems, but cached contexts may become stale when retrieved knowledge, working memory, or user state is edited. Under causal self-attention, even a local edit can affect downstream KV states.…

> From the original source: **arXiv — cs.AI**
> [Read full article at arXiv — cs.AI](https://arxiv.org/abs/2609.17983)

**Tags:** #arXiv

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