Patterns of Bot Participation and Emotional Influence in Open-Source Development

Fuente: arXiv
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Hauptverfasser: Vaccargiu, Matteo, Lai, Riccardo, Lunesu, Maria Ilaria, Pinna, Andrea, Destefanis, Giuseppe
Format: Preprint
Veröffentlicht: 2026
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author Vaccargiu, Matteo
Lai, Riccardo
Lunesu, Maria Ilaria
Pinna, Andrea
Destefanis, Giuseppe
author_facet Vaccargiu, Matteo
Lai, Riccardo
Lunesu, Maria Ilaria
Pinna, Andrea
Destefanis, Giuseppe
contents We study how bots contribute to open-source discussions in the Ethereum ecosystem and whether they influence developers' emotional tone. Our dataset covers 36,875 accounts across ten repositories with 105 validated bots (0.28%). Human participation follows a U-shaped pattern, while bots engage in uniform (pull requests) or late-stage (issues) activity. Bots respond faster than humans in pull requests but play slower maintenance roles in issues. Using a model trained on 27 emotion categories, we find bots are more neutral, yet their interventions are followed by reduced neutrality in human comments, with shifts toward gratitude, admiration, and optimism and away from confusion. These findings indicate that even a small number of bots are associated with changes in both timing and emotional dynamics of developer communication.
format Preprint
id arxiv_https___arxiv_org_abs_2601_11138
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Patterns of Bot Participation and Emotional Influence in Open-Source Development
Vaccargiu, Matteo
Lai, Riccardo
Lunesu, Maria Ilaria
Pinna, Andrea
Destefanis, Giuseppe
Software Engineering
We study how bots contribute to open-source discussions in the Ethereum ecosystem and whether they influence developers' emotional tone. Our dataset covers 36,875 accounts across ten repositories with 105 validated bots (0.28%). Human participation follows a U-shaped pattern, while bots engage in uniform (pull requests) or late-stage (issues) activity. Bots respond faster than humans in pull requests but play slower maintenance roles in issues. Using a model trained on 27 emotion categories, we find bots are more neutral, yet their interventions are followed by reduced neutrality in human comments, with shifts toward gratitude, admiration, and optimism and away from confusion. These findings indicate that even a small number of bots are associated with changes in both timing and emotional dynamics of developer communication.
title Patterns of Bot Participation and Emotional Influence in Open-Source Development
topic Software Engineering
url https://arxiv.org/abs/2601.11138