Freeing up space · One-tap clean-up (Run Tuhi)
Is the one-tap Run Tuhi clean-up safe for my files?
Short answer: Yes. Run Tuhi only does regenerable or reversible things — clearing rebuildable caches, moving folders with a link left behind, reclaiming old local backups and keeping cloud files online-only. It never empties your Trash.
Yes. Run Tuhi is limited to steps that are regenerable or reversible: caches and logs that apps rebuild by themselves, folders moved to your fast drive with a link left in place so they can be moved back, local backups your Mac keeps for itself, and cloud files made online-only while they stay in the cloud.
The one action that permanently destroys your own files — emptying the Trash — is never part of the run, whatever your settings say. Choices that need you, such as which app to relocate, are offered as suggestions rather than carried out.
If you'd like a tighter rule still, turn on Never delete personal files — only move them in Preferences → Rules → Global overrides. See what that switch does.