The point of building a content system is not to make every post sound planned by a committee. It is to remove the boring decisions that keep stealing energy from the useful ones.
Where does the idea go? What status is it in? Which platform is this for? Is it public-safe? What proof point anchors it? Those questions should have defaults. The creative work is the claim, the example, the turn, the sentence that finally says what I meant.
A good system gives creativity fewer places to leak out. It does not decide what I believe. It clears the table so I can notice the belief faster and publish it with less ceremony.