CodeTaste: Can LLMs Generate Human-Level Code Refactorings?
LLM coding agents can generate working code, but their solutions often accumulate complexity, duplication, and architectural debt. Human developers address such issues through refactoring: behavior-preserving program transformations that improve structure and maintainability. We investigate whether agents (i) can execute refactorings reliably and (ii) identify the refactorings that human developers actually chose in real codebases. To this end, we construct CodeTaste, a benchmark mined from large multi-file open-source refactorings. To score solutions, we combine repository test suites that measure functional correctness with tailored static checks that verify removal of undesired and int...
| Authors | Alex Thillen, Niels Mündler, Veselin Raychev et al. |
|---|---|
| Primary category | cs.SE |
| Published | 4 March 2026 |
| Last updated at source | 8 June 2026 |
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