Git Commit Message Best Practices + How AI Can Help You Write Better Commits

Every commit message is a note to your future self—and your future teammates. Write them well and git log becomes a searchable history of why your codebase is the way it is. Write them poorly and you're left with a wall of "fix stuff" and "wip" that tells you nothing when a production bug needs tracing at 3 AM. This guide covers the fundamentals, the industry-standard Conventional Commits specification, practical examples across different change types, and how AI tools are changing the way developers generate commit messages. Why Commit Messages Matter Before diving into format, it's worth being concrete about when commit messages actually get read—because understanding the use cases shapes what makes a good message. git log — Historical Context git log --oneline --graph --all A well-written log reads like a project changelog: a3f9b2c feat(auth): add OAuth2 login with Google provider e1c8d45 fix(api): handle null response from payment gateway 7b3a019 refactor(db): replace raw SQL with