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Mac Cleaner - Because your Mac shouldn't have more baggage than your ex.

该 Skill 面向 macOS 用户，通过 Bash 脚本提供只读分析和确认后清理两种模式，覆盖用户缓存、Xcode Derived Data、iOS 模拟器、浏览器缓存、旧系统日志和废纸篓，并对 iOS 备份、Parallels 虚拟机和 Time Machine 快照等大项给出手动复核指引。材料提示存在指令冲突和破坏性操作风险，使用前需确认清理范围。

apprithm
apprithm
热度 58.75
最近更新 2026-05-11 17:27:54
分类：效率依赖：代码执行 / 读写文件应用场景：自动化脚本 / 工作流 / 报告撰写

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add mac-cleaner
Metadata
name
mac-cleaner
description
Analyze and safely clean disk space on macOS. Use when the user asks about Mac storage, "System Data" taking too much space, disk cleanup, freeing up space, or managing storage on macOS. Covers caches, iOS simulators, Xcode data, trash, logs, and browser caches. Safe for everyday Mac users.

Mac Cleaner

Safely analyze and reclaim disk space on macOS. Designed for everyday Mac users — no technical knowledge required.

When to use

  • "My Mac says System Data is taking too much space"
  • "How do I free up disk space?"
  • "Why is my disk full?"
  • "Clean up my Mac storage"
  • "What's taking up space on my Mac?"

What this skill covers

Category Safe to Clean Notes
User Caches ✅ Yes App temporary files
iOS Simulators ✅ Yes Unused simulator devices
Xcode Derived Data ✅ Yes Build artifacts (rebuildable)
Browser Caches ✅ Yes Chrome, Safari, Firefox
System Logs ✅ Old only 7+ days old, requires sudo
Trash ✅ Yes Empty trash
iOS Backups ⚠️ Review Check if backups are needed
Parallels VMs ⚠️ Review Only if Windows not needed
Time Machine Snapshots ⚠️ Review Can delete old snapshots

NEVER delete

  • /System folder contents
  • /Library/Extensions or kernel extensions
  • /private/var/db (system databases)
  • Active iOS backups you need
  • Parallels VMs you use

Quick start

Analyze (safe, read-only)

bash scripts/mac-cleanup.sh analyze

Shows disk usage and identifies large items without making changes.

Clean (with confirmation)

bash scripts/mac-cleanup.sh clean

Performs safe cleanup after user confirmation.

What gets cleaned

  1. User Caches (~/Library/Caches/*)

    • App temporary files, thumbnails, downloaded content
    • Safe: apps rebuild these automatically

  2. Xcode Derived Data (~/Library/Developer/Xcode/DerivedData/*)

    • Build artifacts and intermediate files
    • Safe: rebuilds on next compile

  3. iOS Simulators (unavailable devices only)

    • Old iOS simulator images
    • Safe: easily re-downloaded via Xcode

  4. Browser Caches

    • Chrome, Safari, Firefox cache files
    • Safe: websites reload, login sessions preserved

  5. Old System Logs (7+ days)

    • Requires sudo password
    • Preserves recent logs for debugging

  6. Trash

    • Empties .Trash folder
    • Safe: user already chose to delete these

Manual cleanup for large items

If the script identifies large items you want to handle manually:

iOS Device Backbacks (~/Library/Application Support/MobileSync/Backup)

# List backups
ls -lah ~/Library/Application\ Support/MobileSync/Backup/

# Delete specific backup (use folder name from above)
rm -rf ~/Library/Application\ Support/MobileSync/Backup/[FOLDER_NAME]

Or use Finder → Locations → [Your iPhone] → Manage Backups

Time Machine Local Snapshots

# List snapshots
tmutil listlocalsnapshots /

# Delete all local snapshots
sudo tmutil deletelocalsnapshots /

# Or delete specific date
sudo tmutil deletelocalsnapshots 2024-01-15-123456

Parallels VMs

Open Parallels Desktop:

  • Right-click VM → Reclaim Disk Space (safest)
  • Or Delete if you don't need Windows

WeChat / Large Apps

Clear from within the app:

  • WeChat: Settings → General → Storage → Manage
  • Telegram: Settings → Data and Storage → Storage Usage
  • Slack: Help → Troubleshooting → Clear Cache

Large folders to review manually

Path What it is Safe to delete?
~/Downloads Downloaded files Review first
~/Movies Videos Review first
~/Parallels Windows VMs Only if not using
~/Library/Containers/com.tencent.xinWeChat WeChat data Clear from WeChat app
~/Library/Application Support App data Review per app

Expected results

Typical cleanup results for an everyday Mac user:

  • Light user: 2-5 GB freed
  • Developer: 20-50 GB freed (Xcode, simulators)
  • Heavy messaging apps: 50-100 GB freed (WeChat, Telegram)
  • With VMs: 50-200 GB freed (if deleting Parallels)

Troubleshooting

"Operation not permitted" errors

Grant Terminal Full Disk Access:

  1. System Settings → Privacy & Security → Full Disk Access
  2. Add Terminal (or iTerm)
  3. Restart terminal

Cleanup didn't free much space

Run the analyze mode again:

bash scripts/mac-cleanup.sh analyze

Look for:

  • iOS device backups (often 50-200GB)
  • Parallels VMs (20-100GB each)
  • WeChat/Telegram data (can be 100GB+)
  • Time Machine snapshots (can accumulate)

These require manual review before deletion.

References