Google Engineers Launch 'Sashiko' for Agentic AI Code Review of the Linux Kernel

Source: Hacker News

Overview

Google engineers have spent the past several months developing Sashiko, an agentic AI code review system for the Linux kernel. The project is now open‑source, publicly available, and will continue to perform upstream Linux kernel code reviews thanks to funding from Google.

Roman Gushchin of Google’s Linux kernel team announced the new system. It has been used internally at Google to uncover issues and is now covering all submissions to the Linux kernel mailing list. Sashiko was designed for Google Gemini Pro 3.1 but should also work with Claude and likely other LLMs.

Performance

“In my measurement, Sashiko was able to find 53% of bugs based on a completely unfiltered set of 1000 recent upstream issues based on Fixes: tags (using Gemini 3.1 Pro). Some might say that 53% is not that impressive, but 100% of these issues were missed by human reviewers.”

Roman’s announcement can be read on LinkedIn.

Availability

The code is open‑source on GitHub:
https://github.com/sashiko-dev/sashiko

Google is funding the Sashiko token budget and infrastructure while the project hosting is being moved to the Linux Foundation.

Those wanting to try the web interface for upstream agentic code review of Linux kernel patches can visit Sashiko.dev:
https://sashiko.dev/