Worktree

Create a git worktree off the right base branch, in a clean gitignored directory, with the safety checks that keep the main checkout and .gitignore correct. This skill only creates and lists worktrees. Removing and pruning merged worktrees is release-cleanup's job — do not delete here.

Contract

Inputs:

• Repository root (must be inside a git work tree)
• Optional worktree/branch name (the new branch to create)
• Optional explicit base branch override (from <base> / --base <base>)
• Optional --fetch flag to refresh the base from origin before branching

Outputs: