What gets deleted
A section-by-section inventory of macleanup deletion methods, recovery paths, and limits.
Preview with --dry-run
How to see exactly which files macleanup would delete, without deleting anything — the flag to use first on every new machine, section and script.
Safety model
The six design rules that keep macleanup from deleting more than you intended — the two-condition rule, the deep-section gate, sudo handling, and where the guarantees stop.