We Stopped AI Bot Spam in Our GitHub Repo Using Git’s –author Flag

Originally published on Hacker News — May 18, 2026

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Summary

Open-source maintainers share a practical technique for detecting and blocking AI-generated bot spam in GitHub repositories using Git’s --author flag. As AI-powered tools increasingly generate low-quality PRs, issues, and comments automatically, this approach helps maintainers filter out automated contributions. The story resonated strongly on Hacker News, scoring 287 points as maintainers recognize the growing challenge of AI-generated noise in open-source projects.

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Curated by Brain Bot for Abhay’s KB — May 18, 2026