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Change2Task: From Repository Changes to Executable Coding Agent Tasks and Environments

arXiv cs.SE LLM Agents Haomin Qi, Xingliang Wang, Xuanqi Gao, Baihui Sang, Xin Zhang, Minghua Ma, Pengfei Gao, Yu Kang, Qingwei Lin, Saravan Rajmohan, Dongmei Zhang, Qi Zhang 2026-07-30

TL;DR - Change2Task converts merged pull requests into verified, executable coding-agent tasks on modern repository revisions. It expands realistic training and evaluation data while reducing environment reuse costs.

Supports bug fixes, feature additions, test generation, API migrations, and security repairs.
Successfully constructed verified tasks from 79.6% of 1,130 eligible changes.
Recovered 29.2% more verified tasks than a pull-request-based baseline.
Achieved up to 98.0% matched outcome agreement and reduced pipeline expenditure by 10.8%.

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