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AI · November 22, 2024

Open-Source Pull Request AI Reviewer

Hey HN, Over the last year, I’ve reviewed more than 1000 code changes. Most of the time was spent catching obvious mistakes rather than debating complex design decisions. If we estimate ~10 minutes per review, that’s 160+ hours spent reviewing code in just one year. So I thought: could I get some of that time back using LLMs? That's why I spent the last few weekends building Presubmit.ai, an open-source AI reviewer that runs as a Github Action right when you open a Pull Request. The results so far are promising: I estimate it can reduce the review time by 50%, which in my case would mean I…

Open-Source Pull Request AI Reviewer launched on November 22, 2024 with 5 votes and more than 50% of that year's launches. The site was still online in September 2026, 1 year on.

What it does

Context-aware AI reviewer for Pull Requests. Instant summary, line-by-line comments, title generation and more - presubmit/ai-reviewer

Optimize your code review process with Presubmit's AI Code Reviewer that catches bugs, suggests improvements, and provides meaningful summary - all before human reviewers take their first look. 🤝 Note : Presubmit is designed to complement human reviewers, not replace them. It helps catch security issues and bugs early on while also providing context about the overall change, making the human review process morefrom github.com

In the maker’s words, at launch

Hey HN, Over the last year, I’ve reviewed more than 1000 code changes. Most of the time was spent catching obvious mistakes rather than debating complex design decisions. If we estimate ~10 minutes per review, that’s 160+ hours spent reviewing code in just one year. So I thought: could I get some of that time back…

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