Well said

Brian Topp presents his thoughts on prorogation as presented to a House committee. And while I'd like to see some effort to make sure that Parliament's role extends beyond voting confidence or non-confidence, it's tough to disagree with the principle behind his call for a simple, absolute rule that the executive shouldn't be able to avoid accountability in Parliament:

In my view the power to declare or withdraw confidence is THE fundamental power of the House of Commons.

There are other critically important powers, like the right to originate money bills.

But the right to assign and withdraw confidence in the Ministry is the crux of the matter -- the central act of legitimacy and political power in our political system between elections.

This being so, subordinate or unelected players must not interfere in its exercise. I refer here to the Cabinet, to the Senate, and to the Governor-General as well as to the Courts.

To do so is to attack responsible government in Canada at its root.

It is therefore my view that the Crown should and must never again seek to interfere in the sitting of the House of Commons when a confidence vote is properly before it.
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I suggest you find a way to say that when a confidence vote is properly before the House, the House cannot be prorogued or otherwise interfered with. In any circumstances. For any reason. By anyone. Until that confidence vote has been dealt with.
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If you feel the need to pass rules on the broader issue, I suggest you establish that the Prime Minister shall not advise the prorogation of the House without a prior authorizing vote by all MPs. Ever, in any circumstances, at any point in the Parliamentary calendar.