Protected lists: completely off-limits
Add a list to your protected lists, and Yaffi won't touch anything in it — nothing is read, moved, or edited. It's as if Yaffi doesn't know the list exists.
Watched lists: the only ones Yaffi looks at
Set one or more watched lists, and Yaffi switches to processing only those — every other list is ignored, even ones it would normally route items into.
Where to set them
Both options are in the app's Settings screen, alongside your other list preferences.
When to use each
Protected lists are useful for anything Yaffi shouldn't touch at all — a shared household list where wording matters to someone else, or a work list you don't want an AI editing. Watched lists are the opposite tool: useful if you only want Yaffi's help on one or two specific lists and would rather it leave the rest of Reminders alone entirely.
These settings work alongside normal Lists and Routing — protecting or watching a list overrides where Yaffi would otherwise send things.