Thanks for the feedback!
It’s really just a resolution system with >4 being the target number, with the Outcome table reinforcing the idea that results of Actions must result in something happening. So, it’s just telling you if the Action is as you intended or not, with the ability to get a “critical” type result with 10+.
If you wanted to represent a compliment of in-between results, you also might consider adding a “Yes, but..” result as a result option on the table. For this game, I wanted to only keep a single threshold in mind, and let the context of the Action and Effort to add the nuance.
Also note that the use of Effort can add some “and..” results to “No, and..” or could add some “but..” results to “Yes..” results (in the form of Conditions). Using Effort is also how it’s possible for a D4 Attributes to achieve a “Yes..” result, albeit at the cost of a Condition.