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.
npx agentmods add skills/julianobarbosa/claude-code-skills/git-worktreenpx skills add julianobarbosa/claude-code-skills --skill git-worktreegit clone --depth 1 https://github.com/julianobarbosa/claude-code-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/julianobarbosa/claude-code-skills/git-worktree)<a href="https://agentmods.dev/skills/julianobarbosa/claude-code-skills/git-worktree"><img src="https://agentmods.dev/badge/skills/julianobarbosa/claude-code-skills/git-worktree.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00060 | $0.03047 |
| Opus 5 | $0.00030 | $0.01523 |
| Sonnet 5 | $0.00012 | $0.00609 |
| Haiku 4.5 | $0.00006 | $0.00305 |
Grade C, and why
git-worktree scanned grade C with 1 finding 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 5d ago.
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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
- **Locking a worktree doesn't prevent fs operations** — `git worktree lock` only blocks `git worktree remove`; `rm -rf` still works. How it starts
The opening of the file, as written. The whole thing — 449 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Git Worktree Skill
Manage parallel development environments using git worktrees with seamless terminal integration.
Overview
Git worktrees enable multiple working directories from a single repository:
- Isolated feature development without branch switching
- Run multiple Claude Code instances in parallel
- Context switching without stashing uncommitted changes
- Clean separation of experimental work
Quick Commands
wt - Worktree Manager
The wt command creates worktrees with automatic terminal integration:
# Create worktree with tmux window
wt add-new-feature
# This will:
# 1. Create git worktree named 'add-new-feature'
# 2. Create new tmux window in current session
# 3. Rename window to 'add-new-feature'
# 4. Change directory to the worktree
tmux Integration
Workflow: Create Worktree + tmux Window
# Function for ~/.zshrc or ~/.bashrc
wt() {
local name="$1"
local base_branch="${2:-main}"
local repo_root=$(git rev-parse --show-toplevel 2>/dev/null)
local worktree_path="$repo_root/.worktrees/$name"
# Validate we're in a git repo
if [[ -z "$repo_root" ]]; then
echo "Error: Not in a git repository"
return 1
fi
# Create worktree directory
mkdir -p "$repo_root/.worktrees"
# Create worktree with new branch
if git worktree add -b "$name" "$worktree_path" "$base_branch" 2>/dev/null; then
echo "Created worktree: $worktree_path"
elif git worktree add "$worktree_path" "$name" 2>/dev/null; then
echo "Attached to existing branch: $name"
else
echo "Error: Failed to create worktree"
return 1
fi
# tmux integration
if [[ -n "$TMUX" ]]; then
# Create new window with worktree name
tmux new-window -n "$name" -c "$worktree_path"
echo "Created tmux window: $name"
else
# Not in tmux, just cd
cd "$worktree_path"
echo "Changed to: $worktree_path"
fi
}
# Remove worktree and tmux window
wt-rm() {
local name="$1"
local repo_root=$(git rev-parse --show-toplevel 2>/dev/null)
local worktree_path="$repo_root/.worktrees/$name"
# Remove git worktree
git worktree remove "$worktree_path" --force 2>/dev/null
# Close tmux window if exists
if [[ -n "$TMUX" ]]; then
tmux kill-window -t "$name" 2>/dev/null
fi
# Optionally delete branch
git branch -d "$name" 2>/dev/null
echo "Removed worktree: $name"
}
# List all worktrees
wt-ls() {
git worktree list
}
What ships with it
3 files 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.
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.
- 5d ago First seen · 449 lines · 60 tokens per session scan C e4c465bb07b1
git-worktree is a skill published in the GitHub repository julianobarbosa/claude-code-skills (10 stars, last pushed 9d ago), licensed MIT. It adds 60 tokens to every session and 3,047 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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