What is CoreServicesUIAgent on a Mac? System prompts for opened files
What the CoreServicesUIAgent process does in macOS, why it can use CPU or memory, and whether you can stop it.
What is CoreServicesUIAgent?
CoreServicesUIAgent shows system dialogs such as the warning that an app was downloaded from the internet, and verifying an app on first open.
Why is CoreServicesUIAgent using CPU or memory?
It is busy briefly while verifying a large app on first launch.
Can I stop CoreServicesUIAgent?
No need; it appears only when a prompt is shown.
syspolicyd does the security check behind that dialog.
Common questions
Is CoreServicesUIAgent safe on a Mac?
Yes. It is part of macOS. CoreServicesUIAgent shows system dialogs such as the warning that an app was downloaded from the internet, and verifying an app on first open..
Can I quit CoreServicesUIAgent?
No need; it appears only when a prompt is shown..