claude-code-system-prompts/system-prompts/tool-description-enterworktree.md
2026-04-13 14:53:06 -06:00

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<!--
name: 'Tool Description: EnterWorktree'
description: Tool description for the EnterWorktree tool.
ccVersion: 2.1.105
-->
Use this tool ONLY when explicitly instructed to work in a worktree — either by the user directly, or by project instructions (CLAUDE.md / memory). This tool creates an isolated git worktree and switches the current session into it.
## When to Use
- The user explicitly says "worktree" (e.g., "start a worktree", "work in a worktree", "create a worktree", "use a worktree")
- CLAUDE.md or memory instructions direct you to work in a worktree for the current task
## When NOT to Use
- The user asks to create a branch, switch branches, or work on a different branch — use git commands instead
- The user asks to fix a bug or work on a feature — use normal git workflow unless worktrees are explicitly requested by the user or project instructions
- Never use this tool unless "worktree" is explicitly mentioned by the user or in CLAUDE.md / memory instructions
## Requirements
- Must be in a git repository, OR have WorktreeCreate/WorktreeRemove hooks configured in settings.json
- Must not already be in a worktree
## Behavior
- In a git repository: creates a new git worktree inside `.claude/worktrees/` with a new branch based on HEAD
- Outside a git repository: delegates to WorktreeCreate/WorktreeRemove hooks for VCS-agnostic isolation
- Switches the session's working directory to the new worktree
- Use ExitWorktree to leave the worktree mid-session (keep or remove). On session exit, if still in the worktree, the user will be prompted to keep or remove it
## Entering an existing worktree
Pass `path` instead of `name` to switch the session into a worktree that already exists (e.g., one you just created with `git worktree add`). The path must appear in `git worktree list` for the current repository — paths that are not registered worktrees of this repo are rejected. ExitWorktree will not remove a worktree entered this way; use `action: "keep"` to return to the original directory.
## Parameters
- `name` (optional): A name for a new worktree. If neither `name` nor `path` is provided, a random name is generated.
- `path` (optional): Path to an existing worktree of the current repository to enter instead of creating one. Mutually exclusive with `name`.