arXiv AI By Ningzhi Tang, Chaoran Chen, Gelei Xu, Yiyu Shi, Yu Huang, Collin McMillan, Tao Dong, Toby Jia-Jun Li

How Coding Agents Fail Their Users: A Large-Scale Analysis of Developer-Agent Misalignment in 20,574 Real-World Sessions

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arXiv AI
Oct 9

Runnable Commit Untangling for Coding Agents

The paper "Runnable Commit Untangling for Coding Agents" introduces RucTangle, an agentic method that untangles large, tangled patches from coding agents while ensuring each commit keeps the code runnable. It also presents TangleEval, an evaluation framework that measures how untangled commit histories aid agents in repairing bugs. Experiments on 131 agent-generated patches show RucTangle produces fully runnable histories, outperforming baselines that leave 20.6%-37.4% of commits unrunnable, and improves bug‑repair success by 5.2% absolute in pass@1.

By Jinfeng Jiang, Dongsun Kim, Dayi Lin, Zhou Yang
arXiv AI
Jul 22

Don't Blame the Large Language Model: How Agent Harness Evolution Shapes Coding Agent Quality

arXiv:2607. 03691v2 Announce Type: replace-cross Abstract: Coding agents, autonomous systems that use large language models (LLMs) to resolve software engineering tasks, rely on agent harness: a middleware layer in between a developer and a large language model that orchestrates system prompts, tool execution, context management, and iterative reasoning loops.

By Oussama Ben Sghaier, Hao Li, Bram Adams, Ahmed E. Hassan
arXiv AI
Oct 7

Catching Developers in the Flow: Low-Latency Agentic Program Repair at Google Scale

The paper introduces FlowAgent, an AI agent deployed at Google to automatically repair test failures in the pre-submit continuous integration workflow. FlowAgent uses a ReAct-style generate-and-validate loop with strict latency and quality filters, and was evaluated on 195 real-world failures with a 67.18% accuracy rate. After deployment, it suggested fixes on 295,508 changes, with developers previewing 65,069 and applying 28,554, and received positive feedback from interviews.

By Celal Ziftci, Spencer Greene, Ray Liu, Livio Dalloro, Lorenzo Dini