We're excited to release Bugbot, our code review agent that automatically analyzes your changes to find logic bugs, edge cases, and security issues before they make it into production.

We built Bugbot for ourselves to help us review our PRs and it has since become a core tool as we continue to build Cursor.

To get started, go to the Bugbot tab in your Cursor dashboard.

Issues detected by Bugbot are commented in the PR, right where they're found

How Bugbot works

Bugbot runs automatically on your PRs and gathers context from your changes to truly understand the intent of the code. We use the best available models along with our own techniques to find meaningful bugs while keeping the false positive rate low.

With Bugbot rules (BUGBOT.md), you can also guide reviews using custom knowledge about your codebase. When Bugbot flags an issue, you can send it to Cursor or launch a background agent on the web with one click.

Results during beta

During Bugbot's short beta, it has already reviewed over 1 million PRs and found over 1.5 million issues. Perhaps most importantly, over 50% of identified bugs are resolved by the time the PR is merged.

Bugbot beta results showing over 1 million PRs reviewed

We've worked closely with several companies that have deployed Bugbot across their teams. Here's what engineering leaders have to say:

See an overview of your PRs and Bugbot statistics in the Cursor dashboard

We've come to rely on Bugbot for our own code reviews, and we're excited to see what it does for your teams.

– Team Cursor