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Huatong Song

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#artificial intelligence Preprint Sep 2026

Agent-Editing World Model: Rethinking World Modeling for LLM Agents

Recent advances in large language models (LLMs) have enabled agents to tackle long-horizon tasks across diverse environments. To further improve agent performance, existing language world models typically predict environment observations, yet reconstructing high-entropy, execution-dependent tool responses offers limite...

Shuang Sun, Guo-Xin Chen, Fan-Zhen Meng et al. · 0 citations
Preprint Aug 2026

Evo-Bench: Can Language Models Improve Agent Harness?

Evo-Bench is the first benchmark designed to evaluate models'intrinsic harness-evolving capabilities across Search, Office, and General agent domains, and exposes critical temporal anomalies like early saturation, while demonstrating that the synthesized harnesses act as highly transferable reasoning structures, consis...

Lisheng Huang, Chen Yang, Hao Zhou et al. · 6 citations · ⚡1
Preprint Aug 2026

ClawGym II: Exploring Black-Box RL on Agent Harness

This work presents a unified black-box RL framework for stable and scalable optimization of general agents through complex harnesses, supporting unified training across heterogeneous execution systems.

Hua-Tong Song, Fei Bai, Ming Yang et al. · 2 citations

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