That would involve explicitly including in the agreement a duty to report and perhaps also providing for the Treasury Board to take a more active role in terms of tracking the money and ensure it is used properly. There is the case of some transfers made to the Yukon, for example, where the money wasn't used for the originally intended purposes. This was only done when the courts got involved. It seems to me that this could have been avoided if the obligations had been explicitly set out in the agreement. This is just an idea that came to mind.
I will admit that my research has not yet addressed this subject in much detail. My main focus to date has been on claims mechanisms for litigants.