Scott Morrison now up to three “secret ministry portfolios held but never disclosed”, page-72

"but the GG job description is to act on the advice of the PM"


nothing in the constitution on that front

https://www.aph.gov.au/About_Parliament/House_of_Representatives/Powers_practice_and_procedure/Practice7/HTML/Chapter1/Powers_and_Functions_of_the_Governor-General

"The Governor-General therefore does not perform executive acts alone but ‘in Council’, that is, acting with the advice of the Federal Executive Council.[70]"


and given the MP's are members of the Federal Executive Council......and who were in the dark about SloMo's self-appointment......indicates the GG did not follow standard......CONSTITUTIONAL.....protocols