Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/marcusrbrown/systematicnpx agentmods add skills/marcusrbrown/systematic/git-worktreeWrote 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/marcusrbrown/systematic/git-worktree)<a href="https://agentmods.dev/skills/marcusrbrown/systematic/git-worktree"><img src="https://agentmods.dev/badge/skills/marcusrbrown/systematic/git-worktree/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/marcusrbrown/systematic/git-worktree"><img src="https://agentmods.dev/badge/skills/marcusrbrown/systematic/git-worktree.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00039 | $0.02394 |
| Opus 5.5 | $0.00016 | $0.00958 |
| Sonnet 5.5 | $0.00008 | $0.00479 |
| Haiku 4.5 | $0.00004 | $0.00239 |
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 1mo 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.
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.
This is a copy
77% identical to git-worktree — 92 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 335 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
- Automatic dev tool trusting for mise and direnv configs with review-safe guardrails
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:
- Copies
.env,.env.local,.env.test, etc. from main repo - Trusts dev tool configs with branch-aware safety rules:
- mise: auto-trust only when unchanged from a trusted baseline branch
- direnv: auto-allow only for trusted base branches; review worktrees stay manual
- Ensures
.worktreesis in.gitignore - Creates consistent directory structure
When this skill loads, its own directory is stated in the surrounding instructions; set SKILL_DIR to that directory because the scripts live beside this file.
# ✅ CORRECT - Always use the script
# Resolve the manager script relative to this skill's directory.
SKILL_DIR="<skill directory stated when this skill loads>";
bash "$SKILL_DIR/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:
- Code Review (
/ce:review): If NOT already on the target branch (PR branch or requested branch), offer worktree for isolated review - Feature Work (
/ce:work): Always ask if user wants parallel worktree or live branch work - Parallel Development: When working on multiple features simultaneously
- Cleanup: After completing work in a worktree
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.
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.
- 1mo ago First seen · 335 lines · 39 tokens per session scan A b69e548eada2
git-worktree is a skill published in the GitHub repository marcusrbrown/systematic (24 stars, last pushed today), licensed MIT. It adds 39 tokens to every session and 2,394 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 77% identical to git-worktree, differing in 92 lines, and is treated as a copy.
Other skills, from other repositories
pr
Draft a PR body from OMC's paper trail — the smallest visual that proves the change, evidence consumed from the verify protocol (never re-collected), reversibility from the ADR test on the diff, glossary language throughout.
worktrees
Manage Git worktrees as OMO safe isolated coding lanes for complex, risky, or parallel work.
taiyi-integration
A project workflow skill for closing a TaiyiForge change and recording it in a CHANGELOG.md file. It checks review results, tests, and the state of the working tree before archiving the change.
flow-next-land
Resolve feedback and CI for one named pull request, then merge when authorized and ready. Emits LANDVERDICT. Use when asked to land a pull request.
flow-next-worktree-kit
Manage git worktrees (create/list/switch/cleanup) and copy .env files. Use for parallel feature work, isolated review, clean workspace, or when user mentions worktrees.
pr
Comprehensive PR/issue review - analyzes architecture, tests, identifies unrelated changes mixed in, drafts review comment or issue comment. Use when user asks to review a PR, check a PR, look at PR changes, or comment on an issue.