Exploring AI code review on GitHub

Sara Verdi
Sara Verdi
Graphite software engineer

AI code review tools on GitHub have transformed the traditional code review process by providing automated, instantaneous feedback directly within pull requests. These tools leverage machine learning to analyze code for errors, style discrepancies, and potential optimizations without human intervention. Here, we explore how GitHub Copilot and Graphite Reviewer utilize AI to streamline code reviews on GitHub.

GitHub Copilot acts as a virtual coding assistant, suggesting code snippets and entire functions in real-time as developers write code. This tool can significantly accelerate development by providing suggestions that developers can accept, modify, or reject. It's particularly useful during the pull request review process, as it offers potential solutions and improvements to code that reviewers might not immediately consider.

GitHub Actions extends GitHub's functionality by providing a marketplace full of custom built automations, including AI-driven code review processes. By configuring and enabling GitHub Actions like the AI Code Review Action, teams can automate the execution of AI code review tools upon every new pull request or push to a branch. This means that code quality checks are performed automatically, ensuring that every submission adheres to predefined quality standards before it even reaches human reviewers.

Graphite Reviewer takes AI code review a step further by providing codebase-specific insights. It automatically scans opened pull requests for bugs, logical errors, and other technical pitfalls, delivering high-signal, targeted feedback with less noise and fewer false positives. Graphite Reviewer is designed to integrate seamlessly into your GitHub repository with no setup required, offering a 30-day free trial so you can see it in action for yourself.

Graphite Reviewer is unique in its approach to AI code review on GitHub. It not only catches common coding errors but also enforces best practices specific to your team’s coding style and project requirements. You can customize Graphite Reviewer with repository-specific AI prompts and regex rules, ensuring consistency and quality across your entire codebase. This tool does not store or train on your team's code, ensuring that your data remains secure and private.

To enable Graphite Reviewer in your GitHub repository, navigate to the Reviewer settings page and click "Enable Reviewer." This allows Graphite to provide immediate, actionable feedback on every pull request, helping you catch and fix issues before they escalate. Here’s a quick guide on how to set it up:

By harnessing the power of AI tools like GitHub Copilot and Graphite Reviewer, teams can enhance their code review process on GitHub, reducing the manual effort required while simultaneously elevating code quality. These tools not only provide instant feedback but also help maintain a high standard of coding practices across projects.

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