Mac App Leftovers

Q: What is a Claude Code skill and how does the Mac App Leftovers skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Mac App Leftovers is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Dev Tools · Sub-category: package-mgmt · Last updated: 2026-10-25

Find what uninstalled apps left behind on a Mac (Application Support and container folders, caches, preferences, saved state, logs, and login items or launch agents that point at nothing), deciding what is installed from app bundles, PATH, Homebrew and Spotlight, and move only the candidates you name into a dated Trash folder. Use when asked \"why is there still a Slack folder?\", to remove leftovers, or as the leftovers step of a cleanup. Not for uninstalling apps, Apple's own folders, or judging whether a command-line tool's data is wanted.

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Dragging an app to the Trash leaves its data behind: gigabytes in Application Support for a mail client that was replaced, a Wine prefix for a trading terminal, a sandbox container for a chat app, a login item that points at nothing, a launch daemon that still tries to start. macOS never shows these in one place. The script lists the entries in the standard locations that no installed application or tool claims, with their size and last change, and the startup items whose target is gone. Deciding what to do with each is the user's; the script moves only what they name, into the Trash, with…

What this skill does

Mac App Leftovers is a community-contributed Claude Code skill in the package-mgmt sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/mac-app-leftovers/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked \"why is there still a Slack folder?\", to remove leftovers, or as the leftovers step of a cleanup. Not for uninstalling apps, Apple's own folders, or judging whether a command-line tool's data is wanted.

Who uses this skill

The Mac App Leftovers Claude Code skill is built for developers, power users, and teams automating repetitive workflows and improving developer experience. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 211,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/mac-app-leftovers
curl -L https://claudskills.com/skills/mac-app-leftovers/SKILL.md \
  -o ~/.claude/skills/mac-app-leftovers/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/mac-app-leftovers/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/mac-app-leftovers/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\mac-app-leftovers\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Mac App Leftovers Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/mac-app-leftovers/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Mac App Leftovers skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Mac App Leftovers skill?

Use Mac App Leftovers when your Claude Code task falls under the Dev Tools category — specifically in the package mgmt area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Mac App Leftovers" or describe the task and let Claude pick). Browse related skills at /category/tools/.

What is a Claude Code skill and how does the Mac App Leftovers skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Mac App Leftovers is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Dev Tools category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/basitalisandhu/claude-skills/blob/HEAD/plugins/mac-maintenance/skills/mac-app-leftovers/SKILL.md
License: MIT
Author: basitalisandhu
Website: https://basitalisandhu.github.io/claude-skills/

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

basitalisandhu. (2026). Mac App Leftovers [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/mac-app-leftovers/

BibTeX

@misc{mac-app-leftovers-2026,
  author    = {basitalisandhu},
  title     = {Mac App Leftovers [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/mac-app-leftovers/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/mac-app-leftovers.svg)](https://claudskills.com/skills/mac-app-leftovers/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-10-25 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/mac-app-leftovers/#security)

More Dev Tools skills

Browse all Dev Tools skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Dev Tools skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore