wt

wt is a skill for Claude Code from timvw/wt. It costs 81 tokens per session (2,918 once invoked), scanned A, original, MIT.

A skill for using wt, a command-line helper for Git worktrees. A worktree is a separate directory linked to the same Git repository, allowing different branches to be worked on at the same time.

In plain words
What is it for?
Creating, checking out, listing, entering, and removing Git worktrees, plus opening pull requests or merge requests through the helper.
Why use it?
It makes parallel branch work easier without repeatedly switching branches or stashing local changes.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: reads .claude/ paths; mentions Claude Code.

Part of the wt plugin — 1 skill shipped together

Good fit Creating, checking out, listing, entering, and removing Git worktrees, plus opening pull requests or merge requests through the helper.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/timvw/wt/wt
View source ↗ timvw/wt
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.

Any agent
npx skills add timvw/wt --skill wt
Clone the repo
git clone --depth 1 https://github.com/timvw/wt

Made for: Claude Code.

Or install wt, the plugin that ships this one along with the rest of its 1 skill.

Wrote 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.

agentmods badge for wt

README.md
[![agentmods](https://agentmods.dev/badge/skills/timvw/wt/wt/github.svg)](https://agentmods.dev/skills/timvw/wt/wt)
Your own site
<a href="https://agentmods.dev/skills/timvw/wt/wt"><img src="https://agentmods.dev/badge/skills/timvw/wt/wt/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.

agentmods 80×15 button for wt

Your own site · 80×15
<a href="https://agentmods.dev/skills/timvw/wt/wt"><img src="https://agentmods.dev/badge/skills/timvw/wt/wt.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,918 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 73
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
  • high Tool Misuse · line 217
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
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 5.1 $0.00081 $0.02918
Opus 5.5 $0.00032 $0.01167
Sonnet 5.5 $0.00016 $0.00584
Haiku 4.5 $0.00008 $0.00292

Measured 1mo ago against content hash 757561eece2a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

wt 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.

plugins/wt/skills/wt/SKILL.md · 227 lines

How it starts

The opening of the file, as written. The whole thing — 227 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Working with wt - Git Worktree Manager

wt is a fast Git worktree helper written in Go. It wraps git worktree with a convenient interface, organized directory structure, and smart defaults. Each branch gets its own directory — no stashing, no branch switching.

Core Philosophy

Never switch branches in the main checkout. Always create a worktree for each task. This keeps the user's workspace clean and allows parallel work on multiple branches.

Commands

Command Purpose
wt clone <owner/repo|url> [dest] Clone a repo under repo_root (host/owner/repo/branch), on its default branch
wt create <branch> [base] Create a new branch in a worktree (defaults to main/master as base)
wt co <branch> Checkout an existing branch in a new worktree
wt co Interactive: fuzzy-search from available branches
wt cd <branch> Switch to an existing worktree (alias: wt sw); never creates one
wt cd Interactive: fuzzy-search from existing worktrees
wt ls List all worktrees
wt rm <branch> Remove a worktree
wt rm Interactive: fuzzy-search worktree to remove
wt pr [number|url] Checkout a GitHub PR (requires gh CLI)
wt pr Interactive: fuzzy-search from open PRs
wt mr [number|url] Checkout a GitLab MR (requires glab CLI)
wt mr Interactive: fuzzy-search from open MRs
wt status Color-coded overview of all worktrees
wt status --ci Include CI/CD pipeline status per branch
wt copy [branch] Materialise the [files] set into a worktree (--dry-run, --force, --from)
wt info Show active strategy, pattern, variables
wt config show Show effective config with sources
wt cleanup --stale Detect stale worktrees (deleted remotes, inactive commits)
wt prune Clean up stale worktree admin files
wt migrate Migrate worktrees to match configured paths
wt init Configure shell integration
wt examples Show practical examples

Read the full file on GitHub · 227 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. 1mo ago First seen · 227 lines · 81 tokens per session scan A 757561eece2a

Subscribe to this mod's changes

wt is a skill published in the GitHub repository timvw/wt (61 stars, last pushed 7d ago), licensed MIT. It adds 81 tokens to every session and 2,918 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-01.