How does this skill differ from a standard git diff?

It uses git merge-base to compare changes from the exact point where the branch diverged, providing a cleaner and more accurate view of your specific changes.

Does this skill check for security vulnerabilities?

It identifies general risks and regressions. While it improves code safety, it should be used alongside dedicated security scanners for deep vulnerability analysis.

Can I limit the review to specific directories?

Yes, the skill allows you to provide specific focus paths to restrict the analysis to certain files or folders for a faster, more relevant review.

How are the findings prioritized?

The skill categorizes findings into critical bugs, technical risks, and cleanup opportunities to help you focus on the most impactful issues first.

Review Main

Name: Review Main
Author: Metta-AI

byMetta-AI

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Collaboration Tools

Analyzes branch changes against origin/main to identify bugs, risks, and optimization opportunities using merge-base diffs.

About

Review Main is a specialized Claude Code Skill designed to streamline the code review process by providing a deep analysis of branch changes relative to the main branch. It automatically computes the merge base to ensure accurate diffing, then systematically scans for bugs, regressions, and unintended side effects. Beyond error detection, the skill offers prioritized feedback on code simplification, cleanup opportunities, and identifies gaps in test coverage, helping developers maintain high-quality codebases and smoother merge workflows.

Key Features

2 GitHub stars
Automated merge-base computation for accurate branch comparisons
Detection of missing unit or integration tests for new changes
Identification of code simplification and cleanup opportunities
Prioritized reporting of bugs, regressions, and technical risks
Targeted analysis via optional focus paths for faster reviews

Use Cases

Scanning large diffs for unintended changes or unnecessary code complexity
Conducting a quick safety audit on a feature branch before merging into the main line
Preparing a pull request for final submission by identifying overlooked regressions

About

Key Features

2 GitHub stars
Automated merge-base computation for accurate branch comparisons
Detection of missing unit or integration tests for new changes
Identification of code simplification and cleanup opportunities
Prioritized reporting of bugs, regressions, and technical risks
Targeted analysis via optional focus paths for faster reviews

Use Cases

Scanning large diffs for unintended changes or unnecessary code complexity
Conducting a quick safety audit on a feature branch before merging into the main line
Preparing a pull request for final submission by identifying overlooked regressions