thaki-AI/daily-paper-2026-10-01-unstable-prefix-harness-erosion

The Unstable Prefix: Measuring KV-Cache Reuse Decay and Serving-Cost Inflation Under Overnight Self-Evolving Skill Harnesses on Self-Hosted H200 TL;DR — Unattended agent loops re-send a fixed prompt prefix every turn, and paged-KV prefix caching prices that re-send; when an overnight self-evolution loop rewrites the skill manifest, exact-match caching loses almost the entire cached prefix at each apply (98.4% of a 6,000-token manifest at the reference). The paper prices this… See the full description on the dataset page: https://huggingface.co/datasets/thaki-AI/daily-paper-2026-10-01-unstable-

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