git-worktree

A Git worktree manager for keeping separate working copies of one repository, each with its own branch. It uses a manager script to create, list, switch, and clean up these worktrees.

In plain words
What is it for?
Use it when developing or reviewing several changes at once, such as working on multiple beads or checking a pull request separately.
Why use it?
It keeps parallel changes isolated so branches do not interfere with one another. It also handles setup details such as copying environment files and ignoring the worktree directory.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/roberto-mello/lavra/git-worktree
Any agent
npx skills add roberto-mello/lavra --skill git-worktree
Clone the repo
git clone --depth 1 https://github.com/roberto-mello/lavra

Made for: Claude Code, Codex.

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,131 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00029 $0.02131
Opus 5 $0.00015 $0.01066
Sonnet 5 $0.00006 $0.00426
Haiku 4.5 $0.00003 $0.00213

Measured 2d ago against content hash 384230288f9b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

git-worktree scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/worktree-manager.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/lavra/skills/git-worktree/SKILL.md · 308 lines

How it starts

The opening of the file, as written. The whole thing — 308 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Git Worktree Manager

This skill provides a unified interface for managing Git worktrees across your development workflow. Whether you're reviewing PRs in isolation or working on features in parallel, this skill handles all the complexity.

What This Skill Does

  • Create worktrees from main branch with clear branch names
  • List worktrees with current status
  • Switch between worktrees for parallel work
  • Clean up completed worktrees automatically
  • Interactive confirmations at each step
  • Automatic .gitignore management for worktree directory
  • Automatic .env file copying from main repo to new worktrees

CRITICAL: Always Use the Manager Script

NEVER call git worktree add directly. Always use the worktree-manager.sh script.

The script handles critical setup that raw git commands don't:

  1. Copies .env, .env.local, .env.test, etc. from main repo
  2. Ensures .worktrees is in .gitignore
  3. Creates consistent directory structure
# CORRECT - Always use the script
bash ${CLAUDE_PLUGIN_ROOT}/skills/git-worktree/scripts/worktree-manager.sh create feature-name

# WRONG - Never do this directly
git worktree add .worktrees/feature-name -b feature-name main

When to Use This Skill

Use this skill in these scenarios:

  1. Code Review (/workflows:review): If NOT already on the target branch (PR branch or requested branch), offer worktree for isolated review
  2. Feature Work (/workflows:work): Always ask if user wants parallel worktree or live branch work
  3. Parallel Development: When working on multiple features simultaneously
  4. Cleanup: After completing work in a worktree

How to Use

In Claude Code Workflows

The skill is automatically called from /workflows:review and /workflows:work commands:

# For review: offers worktree if not on PR branch
# For work: always asks - new branch or worktree?

Manual Usage

You can also invoke the skill directly from bash:

# Create a new worktree (copies .env files automatically)
bash ${CLAUDE_PLUGIN_ROOT}/skills/git-worktree/scripts/worktree-manager.sh create feature-login

# List all worktrees
bash ${CLAUDE_PLUGIN_ROOT}/skills/git-worktree/scripts/worktree-manager.sh list

# Switch to a worktree
bash ${CLAUDE_PLUGIN_ROOT}/skills/git-worktree/scripts/worktree-manager.sh switch feature-login

# Copy .env files to an existing worktree (if they weren't copied)
bash ${CLAUDE_PLUGIN_ROOT}/skills/git-worktree/scripts/worktree-manager.sh copy-env feature-login

# Clean up completed worktrees
bash ${CLAUDE_PLUGIN_ROOT}/skills/git-worktree/scripts/worktree-manager.sh cleanup

Read the full file on GitHub · 308 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 308 lines · 29 tokens per session scan A 384230288f9b

Subscribe to this mod's changes

git-worktree is a skill published in the GitHub repository roberto-mello/lavra (50 stars, last pushed 2mo ago), licensed MIT. It adds 29 tokens to every session and 2,131 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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