Git worktrees: How to work on multiple branches at once

Git worktrees create multiple linked working directories for a single repository, allowing different branches to remain checked out simultaneously while sharing commits, history, and repository data but maintaining separate files and staging areas. They offer a practical alternative to repeatedly switching branches, stashing unfinished work, or creating full duplicate clones, and are particularly useful for running coding agents such as Claude Code, Codex, and Cursor on independent tasks in parallel. Developers can create, inspect, remove, and manage worktrees with standard Git commands, review agent changes and commit history from separate directories, verify tests and CI results, and merge completed branches through normal pull request workflows. Although worktrees isolate checked-out files, they do not isolate shared resources such as ports, databases, credentials, hooks, or external services, so parallel tasks should be small, independent, and assigned separate environments where needed. Effective use also depends on limiting work in progress, merging frequently, cleaning up completed worktrees, and avoiding Git safeguards that protect against branch conflicts or accidental loss of uncommitted work.

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