feature-branch（特征分支）

Create a feature branch in a new git worktree, as a sibling directory of the current project.

Rules

• Never use git checkout -b or git switch -c in the main working directory. All feature branches must be created as worktrees using git worktree add. The main directory must always stay on the main branch.
• Never generate a branch name — always take it from the user or the issue number.

Steps

1. Take the branch name from the argument. If none provided, ask the user — never generate a name.
2. Fetch the latest main:

- git fetch origin main

1. Create the worktree:

- git worktree add../<branch-name> -b <branch-name> origin/main - This creates ../<branch-name>/ alongside the current project directory

1. Confirm to the user:

- Show the branch name - Show the worktree path