Architecture diagram showing a GitHub PR reviewer built with AWS Bedrock Agents

Building a GitHub PR Reviewer with Bedrock Agents and Action Groups

Code reviews are essential for maintaining code quality, but they can be time-consuming and often repetitive. Developers find themselves commenting on the same issues across multiple pull requests: missing tests, inconsistent naming, inadequate error handling, and numerous other routine concerns. This creates a bottleneck in the development process, as team members wait for their code to be reviewed while reviewers struggle to balance thorough reviews with their own development work. ...

February 12, 2026 · 12 min · Luke Little