A constraint set for one live surface, with 20 real cases, and the share of surfaces covered as the number you report.
The sentence on the Kill List, the replacement test, and the Smartcat month are in Kill 'The Team Would Be Slower Without It' as the Test of a Leader's Real Work. The rubric sizes are in Figma's Trial Closed 70% of the PM Gap. The Gate Is the Rubric, Not the Designer., and the handbook chapters The Rubric Is the Spec and Team Shape(coming Jan 20) carry the method and the number.