Commit Hygiene

Keeps your commits atomic and your PRs reviewable by warning you when changes are getting too large. It'll tell you to commit when you hit thresholds like 10+ files or 400+ lines, and it pushes the idea that smaller is better: PRs under 200 lines have way lower defect rates than big ones. The philosophy is simple: if you need "and" to describe your commit, split it. Includes a bash script you can run to check your current change size and get a red/yellow/green signal. Most useful when you're deep in a coding session and lose track of how much you've changed. It's opinionated about size limits, but the thresholds are based on real research from Google and Microsoft on review effectiveness.