A cleanup tool for local Git branches and worktrees. A worktree is another working folder connected to the same Git repository.

Use it to tidy Git state after pull requests or other branches have been merged.

It helps remove local branches and worktrees that are already merged, deleted remotely, or no longer needed, while offering a dry run first.

cleanup-git — Skill for Claude Code and Codex by alexei-led/cc-thingz

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 alexei-led/cc-thingz --skill cleanup-git

Clone the repo

git clone --depth 1 https://github.com/alexei-led/cc-thingz

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/alexei-led/cc-thingz/cleanup-git/github.svg)](https://agentmods.dev/skills/alexei-led/cc-thingz/cleanup-git)

Your own site

<a href="https://agentmods.dev/skills/alexei-led/cc-thingz/cleanup-git"><img src="https://agentmods.dev/badge/skills/alexei-led/cc-thingz/cleanup-git/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/alexei-led/cc-thingz/cleanup-git"><img src="https://agentmods.dev/badge/skills/alexei-led/cc-thingz/cleanup-git.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,013 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 pass 7 Sept 2026

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.

Model	Per session	Once invoked
Fable 5.1	$0.00070	$0.01013
Opus 5.5	$0.00028	$0.00405
Sonnet 5.5	$0.00014	$0.00203
Haiku 4.5	$0.00007	$0.00101

Measured 15d ago against content hash df38a5563edf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cleanup-git 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 15d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/cleanup-git.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.

src/skills/cleanup-git/SKILL.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cleanup Git

Use the target repo's own scripts/cleanup-git.sh if it ships one, otherwise this skill's script. Inspect a repo-provided script before relying on its safety policy. Use direct deletion only for a specifically approved exception described below; never pipe a branch list into force-delete.

scripts/cleanup-git.sh                  # preview (default)
scripts/cleanup-git.sh --apply          # execute the requested safe cleanup
scripts/cleanup-git.sh --apply --force --branch <name>  # approved ahead-commit loss
scripts/cleanup-git.sh --base <ref>     # override base detection

The script fetches and prunes remotes. It prefers the fetched remote default branch, then remote main, master, trunk, develop, or dev, then local fallbacks. --base overrides this choice.

What the script decides

A branch or its worktree is a candidate when one of these holds:

PR merged: GitHub confirms the PR in the target repository and base, and its merge commit is reachable from the base. This catches squash, conflict-resolved squash, and rebase merges; ahead commits count only past the PR head.
merged: the branch is an ancestor of the base.
squash merged: the complete branch patch is equivalent to a commit in the base. This works offline without gh; conflict resolution can prevent equivalence.
upstream gone: only a candidate signal, not merge proof. Unique commits still keep the branch.

It skips the current worktree, current branch, base, and main/master/trunk/develop/dev. It keeps locked worktrees and worktrees with tracked, untracked, or ignored files, or unknown status. It keeps candidates with ahead commits or unknown ahead counts unless --force --branch <name> is passed for one approved target. No proof prints skip ... (active); do not treat that as proof of unmerged work.

Workflow

Run the preview and show the safe removals and kept objects.
An explicit cleanup request authorizes --apply for verified safe candidates. Run it without another confirmation; kept objects do not block safe removals. For a preview-only request, do not apply.
Report what was removed and what remains. Do not ask about every kept object unless the user wants it removed. For a risky exception, show the exact branch/path, full tip OID, unique commits, and uncommitted files (including ignored files), then ask once for permission to discard them. A reply such as “I allow it” authorizes only that described scope; execute it yourself rather than telling the user to run it.

Read the full file on GitHub · 71 lines

Files

What ships with it

2 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.

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.

15d ago Changed · +21 lines df38a5563edf
22d ago Changed · -44 lines d0e01b4f81e2
1mo ago First seen · 94 lines · 70 tokens per session scan A 703b8e34acc5

Subscribe to this mod's changes

cleanup-git is a skill published in the GitHub repository alexei-led/cc-thingz (38 stars, last pushed 11d ago), licensed MIT. It adds 70 tokens to every session and 1,013 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 2026-08-30.

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