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AI-assisted Programming May Decrease the Productivity of Experienced Developers by Increasing Maintenance Burden

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Listed:
  • Feiyang Xu
  • Poonacha K. Medappa
  • Murat M. Tunc
  • Martijn Vroegindeweij
  • Jan C. Fransoo

Abstract

Generative AI solutions like GitHub Copilot have been shown to increase the productivity of software developers. Yet prior work remains unclear on the quality of code produced and the challenges of maintaining it in software projects. If quality declines as volume grows, experienced developers face increased workloads reviewing and reworking code from less-experienced contributors. We analyze developer activity in Open Source Software (OSS) projects following the introduction of GitHub Copilot. We find that productivity indeed increases. However, the increase in productivity is primarily driven by less-experienced (peripheral) developers. We also find that code written after the adoption of AI requires more rework. Importantly, the added rework burden falls on the more experienced (core) developers, who review 6.5% more code after Copilot's introduction, but show a 19% drop in their original code productivity. More broadly, this finding raises caution that productivity gains of AI may mask the growing burden of maintenance on a shrinking pool of experts.

Suggested Citation

  • Feiyang Xu & Poonacha K. Medappa & Murat M. Tunc & Martijn Vroegindeweij & Jan C. Fransoo, 2025. "AI-assisted Programming May Decrease the Productivity of Experienced Developers by Increasing Maintenance Burden," Papers 2510.10165, arXiv.org, revised Oct 2025.
    • Handle: RePEc:arx:papers:2510.10165
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    References listed on IDEAS

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