Does My README File Need To Be Updated? Exploring LLM-Based README Maintenance

Fuente: arXiv
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Autori principali: Gao, Haoyu, Lin, Hong Yi, Treude, Christoph, Gay, Gregory, Zahedi, Mansooreh
Natura: Preprint
Pubblicazione: 2026
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author Gao, Haoyu
Lin, Hong Yi
Treude, Christoph
Gay, Gregory
Zahedi, Mansooreh
author_facet Gao, Haoyu
Lin, Hong Yi
Treude, Christoph
Gay, Gregory
Zahedi, Mansooreh
contents The README file serves as a critical source of information for gaining an overview and helping developers onboard to an Open Source Software (OSS) project. Yet, documentation issues persist; in particular, ``outdated'' documentation is perceived by developers as one of the most frequent and severe challenges with gaining project understanding. While previous studies have aimed to mitigate this problem, they typically either rely on highly-engineered solutions focused on specific code components or employ generative methods that are ineffective for incremental maintenance. In this study, we propose a lightweight Large Language Model (LLM)-driven approach to facilitate precise, localised README file updates within a human-in-the-loop workflow. Specifically, given a pull request (PR), our pipeline determines whether an update is necessary; if so, it identifies the precise locations where updates should be applied and provides a justification based on the triggering events. Our evaluation on 27,772 PRs across 714 popular repositories demonstrates high precision and utility. Furthermore, we performed a qualitative failure case analysis to provide deeper insights and directions for improvement. We also conducted a retrospective study on 20 sampled repositories, complemented by a case study with a developer of a large OSS project. These evaluations demonstrate that the tool effectively identifies overlooked PRs requiring README updates, thereby helping to mitigate the risk of outdated documentation. Finally, we provide concrete implications for practitioners and researchers, highlighting the need to further explore effective interaction patterns to incorporate documentation update tools into the OSS development workflow.
format Preprint
id arxiv_https___arxiv_org_abs_2603_00489
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Does My README File Need To Be Updated? Exploring LLM-Based README Maintenance
Gao, Haoyu
Lin, Hong Yi
Treude, Christoph
Gay, Gregory
Zahedi, Mansooreh
Software Engineering
The README file serves as a critical source of information for gaining an overview and helping developers onboard to an Open Source Software (OSS) project. Yet, documentation issues persist; in particular, ``outdated'' documentation is perceived by developers as one of the most frequent and severe challenges with gaining project understanding. While previous studies have aimed to mitigate this problem, they typically either rely on highly-engineered solutions focused on specific code components or employ generative methods that are ineffective for incremental maintenance. In this study, we propose a lightweight Large Language Model (LLM)-driven approach to facilitate precise, localised README file updates within a human-in-the-loop workflow. Specifically, given a pull request (PR), our pipeline determines whether an update is necessary; if so, it identifies the precise locations where updates should be applied and provides a justification based on the triggering events. Our evaluation on 27,772 PRs across 714 popular repositories demonstrates high precision and utility. Furthermore, we performed a qualitative failure case analysis to provide deeper insights and directions for improvement. We also conducted a retrospective study on 20 sampled repositories, complemented by a case study with a developer of a large OSS project. These evaluations demonstrate that the tool effectively identifies overlooked PRs requiring README updates, thereby helping to mitigate the risk of outdated documentation. Finally, we provide concrete implications for practitioners and researchers, highlighting the need to further explore effective interaction patterns to incorporate documentation update tools into the OSS development workflow.
title Does My README File Need To Be Updated? Exploring LLM-Based README Maintenance
topic Software Engineering
url https://arxiv.org/abs/2603.00489