Git Worktree

A Git worktree is an additional working directory attached to the same repository. Instead of cloning the project again, Git creates another checkout that shares the same history and object database while pointing to its own branch or commit. In AI-assisted development, that makes worktrees a practical isolation layer: multiple coding agents can work on separate tasks without writing into the same file tree at the same time. Each agent gets a clear workspace, a separate diff, and a reviewable boundary. Worktrees do not replace the rest of the engineering discipline. Dependencies, environment variables, database state, generated files, and build artifacts still need to be reproducible or isolated. They also do not eliminate merge conflicts; they make them explicit and easier to resolve in sequence. The main benefit is operational control. Worktrees turn parallel agent runs from a pile of overlapping edits into separate branches of work that can be tested, reviewed, and merged deliberately. A common setup gives each ticket, experiment, or agent its own directory, then lets a human reviewer decide what enters the main branch.