Google engineers have launched Sashiko, an agentic AI code review system designed specifically for the Linux kernel. Developed internally at Google and now publicly available, Sashiko monitors all submissions to the Linux kernel mailing list. Using Gemini 3.1 Pro, it was able to identify 53% of bugs from an unfiltered set of 1,000 recent upstream kernel issues tagged with 'Fixes:' — bugs that were all missed by human reviewers. Google is funding the token budget and infrastructure, the project is being moved to the Linux Foundation, and the code is open-source on GitHub.
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