Find your way round any codebase.
Sooner or later you'll inherit code: a colleague's tool, an open-source project, an old system. The agent is an excellent tour guide.
Get a tour
Map
“Explain the structure.”
Follow a click
Trace
One action, button to database.
Read the tests
Behaviour
They show what it should do.
Ask where
Change
“Where would I change X?”
Check history
Why
git log shows when and why.
Follow one click from button to database.