Harness Updating Is Not Harness Benefit: Disentangling Evolution Capabilities in Self-Evolving LLM Agents. - Minhua Lin; Juncheng Wu; Zijun Wang; Zhan Shi; Yisi Sang; Bing He 002; Zewen Liu; Tianxin Wei; Zongyu Wu 001; Zhiwei Zhang 028; Dakuo Wang; Xiang Zhang 001; et al. (CoRR, 2026)