arXiv:2606. 05646v1 Announce Type: cross Abstract: Large language models (LLMs) have enabled powerful software engineering (SE) agents capable of navigating complex codebases and resolving real-world issues.
By Xuehang Guo, Zora Zhiruo Wang, Qingyun Wang, Graham Neubig, Xingyao Wang
arXiv:2608. 12522v1 Announce Type: new Abstract: LLM-based program evolution systems such as FunSearch and AlphaEvolve have shown strong ability to discover novel algorithms, but typically optimize each task in isolation, discarding search experience after completion.
By Aofan Liu, Shiyuan Song, Yiyan Qi
The paper introduces cognitive extensions for a dual‑process language agent, adding an Adaptive Memory Module (AMM) for episodic storage and a Self‑Reflection Module (SRM) for execution‑time validation. Implemented as feature‑flagged extensions, these modules allow controlled ablations on the ScienceWorld benchmark. Results show the full system outperforms baselines, with SRM providing the strongest individual improvement, indicating that execution‑time control is the key bottleneck while episodic memory aids once the runtime loop stabilizes.
By Jo\~ao Meneses dos Santos, Arlindo L. Oliveira
Language agents remain brittle in interactive environments, where success requires long-horizon state tracking, valid action execution, and recovery from failed steps. We extend SwiftSage, a dual-proc...
arXiv:2605. 18421v2 Announce Type: replace-cross Abstract: Recent benchmarks for Large Language Model (LLM) agents mainly evaluate reasoning, planning, and execution.
By Yuyao Wang, Zhongjian Zhang, Mo Chi, Kaichi Yu, Yuhan Li, Miao Peng, Bing Tong, Chen Zhang, Yan Zhou, Jia Li
SWE-Opt is a new benchmark that evaluates large language models (LLMs) on repository‑level software performance optimization. It is built from 102 expert‑written optimizations from open‑source projects and measures runtime, peak memory, and Time‑Weighted Memory Usage (TWMU) under varied input data, execution conditions, and noise‑aware measurements. The study finds that current LLMs achieve few runtime gains and almost no memory improvements, whereas expert implementations deliver a 15.5× speedup and 171.3× memory reduction.
By Ezgi Sar{\i}kayak, Wenchao Gu, Hesham Ghonim, Chunyang Chen