想给编码代理搞训练数据？Change2Task用仓库历史自动生成可执行任务，成功率近八成，还能省下环境搭建开销。
Change2Task是一个基于仓库历史将合并的拉取请求转换为已验证编码代理任务的系统。它通过补丁反转、代码映射或代理重建来重构任务状态，并验证从健康基线到任务状态再恢复的完整生命周期。从1,130个符合条件的源变更中，该系统在五类常见编码代理任务族上实现了79.6%的验证任务构建成功率。相比基于拉取请求的构造基线，在匹配候选集上多恢复了29.2%的验证任务。历史与重建案例在代理评估下达到98.0%的匹配结果一致性，复用现代基础使整体管道测量支出降低10.8%。
Change2Task: From Repository Changes to Executable Coding Agent Tasks and Environments
Scaling coding agents requires a continuing supply of executable data for training, benchmarking, and continuous evaluation. Each task must couple a realistic software state with a specification, development tools, and reliable verification. To expand this supply, we present Change2Task, a system grounded in repository history that converts merged pull requests into verified tasks on healthy modern revisions of the same repository. It aligns historical evidence with evolved code, reconstructs task states through Patch Reversal, Code Mapping, or Agent Reconstruction, and validates the lifecycle from a healthy base to a task state and a restored state. By deriving multiple tasks grounded in developer evidence from maintained environments, Change2Task provides executable data for coding agent training and evaluation while reducing repeated environment setup, storage, and task construction effort. We evaluate the system through five common and widely adopted coding agent task families: Bug Fix, Feature Addition, Test Generation, Application Programming Interface Migration, and Security Repair. Starting from 1,130 source changes eligible for construction, Change2Task achieves 79.6% verified task construction success across these task families. On a matched candidate set, it recovers 29.2% more verified tasks than a construction baseline based on pull requests. Historical and reconstructed cases achieve up to 98.0% matched outcome agreement under agent evaluation, while reuse of modern bases reduces measured expenditure across the complete pipeline by 10.8%.