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arXiv — cs.AI preprintsInternational21 October 2026

MemDev-Bench: Does Memory Help Code Agents?Benchmarking Memory Systems over Real Repository Histories

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arXiv:2610.27524v1 Announce Type: new Abstract: Code agents increasingly work on evolving real repositories, and memory systems aim to help them reuse earlier experience. However, such experience is diverse and evolving, so it remains unclear how memory systems organize it and thereby affect code agents. Existing benchmarks cannot answer this reliably because they lack either temporally valid histories or control over prior-task relevance. In this paper, we present MemDev-Bench to evaluate how memory systems affect code agents over diverse repository histories. It pairs each task with relevanc
— arXiv — cs.AI preprints

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