CoreCodeBench: Decoupling Code Intelligence via Fine-Grained Repository-Level Tasks
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2025
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| author | Fu, Lingyue Guan, Hao Zhang, Bolun Yuan, Haowei Zhu, Yaoming Xu, Jun Wang, Zongyu Qiu, Lin Cai, Xunliang Cao, Xuezhi Liu, Weiwen Zhang, Weinan Yu, Yong |
| author_facet | Fu, Lingyue Guan, Hao Zhang, Bolun Yuan, Haowei Zhu, Yaoming Xu, Jun Wang, Zongyu Qiu, Lin Cai, Xunliang Cao, Xuezhi Liu, Weiwen Zhang, Weinan Yu, Yong |
| contents | The evaluation of Large Language Models (LLMs) for software engineering has shifted towards complex, repository-level tasks. However, existing benchmarks predominantly rely on coarse-grained pass rates that treat programming proficiency as a monolithic capability, obscuring specific cognitive bottlenecks. Furthermore, the static nature of these benchmarks renders them vulnerable to data contamination and performance saturation. To address these limitations, we introduce CoreCodeBench, a configurable repository-level benchmark designed to dissect coding capabilities through atomized tasks. Leveraging our automated framework, CorePipe, we extract and transform Python repositories into a comprehensive suite of tasks that isolate distinct cognitive demands within identical code contexts. Unlike static evaluations, CoreCodeBench supports controllable difficulty scaling to prevent saturation and ensures superior data quality. It achieves a 78.55% validity yield, significantly surpassing the 31.7% retention rate of SWE-bench-Verified. Extensive experiments with state-of-the-art LLMs reveal a significant capability misalignment, evidenced by distinct ranking shifts across cognitive dimensions. This indicates that coding proficiency is non-monolithic, as strength in one aspect does not necessarily translate to others. These findings underscore the necessity of our fine-grained taxonomy in diagnosing model deficiencies and offer a sustainable, rigorous framework for evolving code intelligence. The code for CorePipe is available at https://github.com/AGI-Eval-Official/CoreCodeBench, and the data for CoreCodeBench can be accessed at https://huggingface.co/collections/tubehhh/corecodebench-68256d2faabf4b1610a08caa. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2507_05281 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | CoreCodeBench: Decoupling Code Intelligence via Fine-Grained Repository-Level Tasks Fu, Lingyue Guan, Hao Zhang, Bolun Yuan, Haowei Zhu, Yaoming Xu, Jun Wang, Zongyu Qiu, Lin Cai, Xunliang Cao, Xuezhi Liu, Weiwen Zhang, Weinan Yu, Yong Software Engineering Computation and Language The evaluation of Large Language Models (LLMs) for software engineering has shifted towards complex, repository-level tasks. However, existing benchmarks predominantly rely on coarse-grained pass rates that treat programming proficiency as a monolithic capability, obscuring specific cognitive bottlenecks. Furthermore, the static nature of these benchmarks renders them vulnerable to data contamination and performance saturation. To address these limitations, we introduce CoreCodeBench, a configurable repository-level benchmark designed to dissect coding capabilities through atomized tasks. Leveraging our automated framework, CorePipe, we extract and transform Python repositories into a comprehensive suite of tasks that isolate distinct cognitive demands within identical code contexts. Unlike static evaluations, CoreCodeBench supports controllable difficulty scaling to prevent saturation and ensures superior data quality. It achieves a 78.55% validity yield, significantly surpassing the 31.7% retention rate of SWE-bench-Verified. Extensive experiments with state-of-the-art LLMs reveal a significant capability misalignment, evidenced by distinct ranking shifts across cognitive dimensions. This indicates that coding proficiency is non-monolithic, as strength in one aspect does not necessarily translate to others. These findings underscore the necessity of our fine-grained taxonomy in diagnosing model deficiencies and offer a sustainable, rigorous framework for evolving code intelligence. The code for CorePipe is available at https://github.com/AGI-Eval-Official/CoreCodeBench, and the data for CoreCodeBench can be accessed at https://huggingface.co/collections/tubehhh/corecodebench-68256d2faabf4b1610a08caa. |
| title | CoreCodeBench: Decoupling Code Intelligence via Fine-Grained Repository-Level Tasks |
| topic | Software Engineering Computation and Language |
| url | https://arxiv.org/abs/2507.05281 |