This paper presents SYSTEM YOSHIMITSU KATAYAMA — a six-principle architectural framework for the next generation of human-computer interaction systems. The central hypothesis is that the dominant paradigm (human as operator, machine as tool) imposes structural friction costs that can be eliminated by inverting the relationship: the system acts as an autonomous agent responding to human intent declarations rather than receiving explicit operational commands. The six principles are: (1) OS as AI Agent, (2) Icon as Agent, (3) AI Agent as Administrator, (4) On-Demand Application Generation, (5) Purpose-Defined Personality Machines, and (6) Master-Embedded Devices. The framework is operationalized through the value density function V = N/D, where V is productive output per unit time, N is the d

TheYKHC Research Series — Stream D: Cognitive Science / AI Systems Design. Peer-review diet version (ポエム削除・科学化済み).