Git Notes

Lets you attach metadata to Git commits without changing their SHA or rewriting history. Useful when you need to track code review approvals, test results, or audit notes after the fact. The skill covers namespace management (so you can separate review notes from testing notes), how to actually push and fetch notes between remotes (which doesn't happen automatically), and configuration to preserve notes during rebases. The append versus add distinction matters more than you'd think. Notes feel a bit obscure until you've dealt with a compliance workflow that needs post-commit annotations, then they're exactly the right tool.