When Does a Creative Constraint Stop Helping?

A constraint can be a frame—or a fence. A fixed format or limited time may make it easier to begin, but if the rule becomes the point, the work can start serving the schedule instead of the people it’s meant to reach.

When you’re building a creative habit, what kind of constraint helps you finish a small piece while leaving room to discover something unexpected? What tells you it’s time to loosen the rule?