git blame
Domain: Version Control
🎯 Motivation
git blame shows who last edited each line of a file and when. It helps you understand the history of specific code and find the right person to ask when a line is confusing or broken.
📋 Concrete Example
You run git blame app.py and see that line 42 was last changed by Alice on March 3 with the message “optimize query”, so you ask her about that change.
🔗 Analogy
git blame is like a group project where every sentence is initialed by whoever wrote it. When something reads strangely, you know exactly who to ask.