And Mr Key was warned that he was not exempt from the Government's demands for costs savings across the public sector: the paper says he would have to work with other ministers who were under the umbrella of the Department of Internal Affairs to ensure they all met savings targets by mid July.
The amount of savings tagged was not revealed. However, the Government has set a target of $980 million in savings from the whole state sector over the next three years.
The briefing to Mr Key also commented on a law change under which the Remuneration Authority will set travel and accommodation allowances for ministers as well as MPs.
Mr Key had pushed for the change after a series of scandals about MPs' use of their 'holiday' air travel perk and costs. The perk has now been scrapped.
The paper said the change was expected to happen this year and Mr Key would be consulted about extra travel and accommodation services ministers might need.
The department told Mr Key that the portfolio "traditionally attracts a high level of media interest" but added that there were currently few issues that would excite interest.