Our relationship with technology is becoming a serious public health concern affecting our lives on biological, psychological, and social levels. However, this relationship can also have its own therapeutic setting when technology is used to support behavior change. To develop such interventions, designers must carefully connect psychological strategies with the software artifact. This study presents a high-level system specification that explains how the psychological strategies of the Minnesota Model can be implemented within a digital intervention. To translate these counselling strategies into persuasive software features, we first conducted a Persuasive Systems Design analysis, then systematically extracted counselling strategies from the Minnesota Model literature and guidelines. These were then mapped into software artifacts with an iterative process. Through this synthesis, our study provides theoretical and practical implications with its documentation and examples from the resulting outcome.