Interaction-Shaping Robotics (ISR) is a subfield of Human–Robot Interaction (HRI) that investigates how robots influence the behaviors and attitudes of other agents, such as humans or robots. This article defines ISR and highlights key factors that characterize interaction-shaping robots, including the robot's role, the robot-shaping outcome, the form of robot influence, the type of robot communication, and the timeline of the robot's influence. The article also describes three distinct structures of human–robot groups and discusses the potential of ISR in different group compositions. It emphasizes the need for future research to consider ethical, methodological, and computational challenges in developing interaction-shaping robots. The article also discusses the potential benefits and risks of interaction-shaping robots, including their ability to influence human–human interactions and the ethical considerations of using robots to shape human relationships. The article concludes by highlighting the importance of future research in developing new methodologies for meaningful comparisons between robots, robot behaviors, and scenarios in ISR.Interaction-Shaping Robotics (ISR) is a subfield of Human–Robot Interaction (HRI) that investigates how robots influence the behaviors and attitudes of other agents, such as humans or robots. This article defines ISR and highlights key factors that characterize interaction-shaping robots, including the robot's role, the robot-shaping outcome, the form of robot influence, the type of robot communication, and the timeline of the robot's influence. The article also describes three distinct structures of human–robot groups and discusses the potential of ISR in different group compositions. It emphasizes the need for future research to consider ethical, methodological, and computational challenges in developing interaction-shaping robots. The article also discusses the potential benefits and risks of interaction-shaping robots, including their ability to influence human–human interactions and the ethical considerations of using robots to shape human relationships. The article concludes by highlighting the importance of future research in developing new methodologies for meaningful comparisons between robots, robot behaviors, and scenarios in ISR.