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Zhenpeng Chen

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Preprint Sep 2026

XRepoSkill: Learning Transferable Skills for Software Engineering Agents

XRepoSkill, a trajectory-based approach for learning transferable skills that achieves the highest issue resolution rate in all six benchmark--LLM combinations, and is evaluated on the challenging long-horizon DeepSWE benchmark.

Yao-Qi Guo, Hao Zhou, Jia-Yi Zhang et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Complex Agents, Shallow Tests: Demystifying and Enhancing Test Adequacy of Agent Harness in the Wild

This work conducts the first empirical study to systematically investigate the test adequacy of harness in real-world agentic systems and proposes HarnessTester, the first harness-oriented test generation technique that incorporates explicit agent-harness contract support to construct contract-faithful test setups and...

Yi-Fan Xiong, Jing-Yi Ge, Zhen-Peng Chen et al. · 0 citations
#artificial intelligence Preprint Sep 2026

AgentBug-Smith: Automatically Reproducing Real-World Harness Bugs in Agentic Systems

Agent harness bugs exhibit unique characteristics and remain challenging for state-of-the-art software agents to repair. Progress in this area is further hindered by existing benchmarks, which contain only a small and fixed number of executable harness bugs while requiring hundreds of human hours to construct. This wor...

Yi-Ming Cheng, Alfin Wijaya Rahardja, Meng-Shi Zhang et al. · 0 citations
Preprint Jul 2026

An Empirical Study of Downstream Adaptation for Agent Skills

A reuse paradox is revealed: although skills are intended to be easily imported and reused, developers spend a lot of effort rewriting what the skills do, fixing skill discoverability, and translating them for different tools and languages, indicating a need for better abstractions, standardized interfaces, and automat...

Xinjian Wu, Jingzhi Gong, Gunel Jahangirova et al. · 0 citations
Jul 2026

Tool Specifications Matter: Uncovering and Mitigating Safety Risks in AI Agents

This paper proposes SafeKeep, an inference-time safeguard that decouples safety judgment from tool execution: it assesses requests using flattened textual tool specifications while retaining the original schema-formatted specifications for execution.

Minghui Pan, Jiayuxuan Yang, Yuan-Yuan Yuan et al. · 0 citations

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