Hi Peter,
Sorry for the delay with my reply. I think the ability to blacklist an application from the clipboard history would be better for me than relying on a detection routine. 1Password includes a setting that clears the clipboard after a set number of seconds. I currently use that feature and blacklist both 1Password and Keychain Access from the Launchbar clipboard history. I don’t want my passwords hanging around anywhere other than in in the system keychain or 1Password vault.
Regards Alan