Due to an update of 1Password 7, the locked 1Password Mini can be updated with this script line:
set keywordStr to "@iMac" open location "onepassword7://extension/search/" & keywordStr
but it no longer opens after the master password has been entered.
The problem is known with Agilebites, but even with the current beta (7.3.3) the problem persists.
I've made some changes now, so that it works reliably again even with a locked 1Password mini.
Here in the video I briefly explain the changes that are necessary:
Here is the macro from the video: