The documentation is less than clear about whether it can ignore apps:
By default, Alfred ignores popular password applications like the macOS Keychain Access and 1Password, so that you don't inadvertently copy a password to your clipboard.
I don't want to prevent apps from copying to my clipboard. I want to prevent Alfred from storing the history when I copy from a specific app (my password manager).
I may as well just try it and find out, though.
The Alfred webpage says: "By default, Alfred ignores popular password applications like the macOS Keychain Access and 1Password, so that you don't inadvertently copy a password to your clipboard."
You can set it up to ignore copies from your password manager.
I have it currently set up to ignore KeePassX.
https://superuser.com/questions/1112970/prevent-clipboard-ma...