Git worktrees let you check out multiple branches at the same time, each in its own folder, all sharing one .git directory. And with Claude Code's --worktree flag, you can run multiple AI coding sessions at once without file conflicts. This guide covers everything from first setup to parallel AI workflows.
You're working on a feature. You have uncommitted changes. A production bug comes in and needs a fix now.
With standard Git, you have three bad options:
git stash everything, switch branches, fix the bug, git stash pop, get back to where you were
Clone the repo a second time and manage two out-of-sync copies
