Open-source AI skill clears 135GB of Mac cache overnight, saving a ¥1500 SSD upgrade
oran_ge · x · 2026-09-08
Developer orange released Disk Raccoon, an open-source AI skill that lets coding agents safely clean macOS caches. First run cleared 135+ GB overnight with zero incidents—significant given Apple charges ¥1500 to bump soldered storage to 512GB.
The core insight: on macOS, big files aren't necessarily safe to delete and safe-to-delete items aren't necessarily big.
- Feishu's 42GB cache hides deep in LarkShell/aha (deletable), but the same folder holds login state (not deletable)
- Chrome's Service Workers eat 30GB and are safe to remove, while adjacent IndexedDB holds web app data
- Telegram media cache can reach 100GB; an official issue has complained for eight years
- /.cache/uv silently consumes 56GB
The project ships a cache map (cache-map.md) with three safety tiers per path—safe, cautious, avoid—so the agent "washes before eating." For app uninstalling and background management, pair it with the free open-source tool Mole.
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