Git diagnostics reveal codebase health before reading

Git history is an untapped goldmine for technical debt discovery that is often more honest than documentation.

• –Identifying "God Objects" via churn hotspots exposes architectural bottlenecks and fragile code areas.
• –Filtering git logs for bug-related keywords creates a heat map of areas most prone to regressions.
• –Project velocity and bus factor metrics identify knowledge silos and team burnout early in the onboarding process.
• –Tracking firefighting patterns like frequent reverts indicates a breakdown in CI/CD or testing confidence.
• –Forensic value depends heavily on commit discipline; squash-merges and vague messages can blind these diagnostics.