Agentic Much? Adoption of Coding Agents on GitHub
In the first half of 2025, coding agents have emerged as a category of development tools that have very quickly transitioned to the practice. Unlike “traditional” code completion LLMs such as Copilot, agents like Cursor, Claude Code, or Codex operate with high degrees of autonomy, up to generating complete pull requests starting from a developer-provided task description. This new mode of operation is poised to change the landscape in an even larger way than code completion LLMs did, making the need to study their impact critical. Also, unlike traditional LLMs, coding agents tend to leave more explicit traces in software engineering artifacts, such as co-authoring commits or pull requests. We leverage these traces to present the first large-scale study (128,018 projects) of the adoption of coding agents on GitHub, finding an estimated adoption rate of 22.20%–28.66% on February 21st, 2026, which is very high for a technology only a few months old–and increasing. We carry out an in-depth study of the adopters we identified, finding that adoption is broad: it spans the entire spectrum of project maturity; it includes established organizations; and it concerns diverse programming languages or project topics. At the commit level, we find that commits assisted by coding agents are larger than commits only authored by human developers, and have a large proportion of features and bug fixes. These findings highlight the need for further investigation into the practical use of coding agents.
Authors
- Stefano Zacchiroli (ORCID: https://orcid.org/0000-0002-4576-136X)
- Théo Matricon (ORCID: https://orcid.org/0000-0002-5043-3221)
- Romain Robbes (ORCID: https://orcid.org/0000-0003-4569-6868)
- Thomas Degueule (ORCID: https://orcid.org/0000-0002-5961-7940)
- André Hora (ORCID: https://orcid.org/0000-0003-4900-1330)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Institut national de recherche en sciences et technologies du numérique (FR)
- Université de Bordeaux (FR)
- Institut de Recherche en Informatique et Systèmes Aléatoires (FR)
- Hospital das Clínicas da Universidade Federal de Minas Gerais (BR)
- Institut Polytechnique de Paris (FR)
- Université de Rennes (FR)
Publication Details
- Journal
- ACM Transactions on Software Engineering and Methodology
- Published
- 2026-06-26
- DOI
- https://doi.org/10.1145/3822180
- Primary Topic
- Software Engineering Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00