Do Coding Agents Reuse Existing Code or Reinvent the Wheel?
Coding agents are increasingly deployed for iterative development on real repositories, yet existing evaluation barely answers a basic question: \emph{do coding agents reuse existing code or reinvent the wheel?} The question matters: every duplicated implementation is a fix applied twice and agents produce code far faster than humans can audit, so redundancy accumulates unsupervised. Thus, we present \textbf{RepoReuse}, a multi-turn benchmark for auditing code reuse in real repositories, where requirements are revealed turn by turn and the workspace accumulates across turns. It is built by a fully automated pipeline combining AST-based dependency graphs, guided evidence collection, and ex...
| Authors | Dongsheng Ma, Sizhe Wang, Xinyi Huang et al. |
|---|---|
| Primary category | cs.SE |
| Published | 28 September 2026 |
| Last updated at source | 28 September 2026 |
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