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Developer Builds PR Complexity Scorer After Missed Refactor Caused Production Regression

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A software developer created an open-source tool called ReviewRadar after their team shipped a regression caused by a large, overlooked pull request buried among routine updates. The problematic PR spanned 2,847 lines across 56 files touching authentication, core business logic, and the database layer, yet appeared visually equivalent to minor fixes in GitHub's interface. The developer argued that raw line counts are a poor proxy for review risk, citing how a 500-line auto-generated lockfile change is far safer than a 50-line edit to auth middleware. ReviewRadar assigns each PR a complexity score from 0 to 100 by weighting changed files by type, capping per-file churn, and factoring in rewrite intensity and file spread. The tool aims to help teams prioritize reviews across multiple repositories by surfacing high-risk PRs, CI/CD failures, merge conflicts, and review blockers in a single dashboard.

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