SHIFT is an adaptive computational framework designed to improve human understanding in interactive tasks through adaptive verbal scaffolding. By analysing human cognitive state in real time - incorporating task awareness, processing capacity and interaction history - SHIFT selects personalised verbal strategies such as affirmations, negations and hesitations to support more natural, effective human-robot communication. SHIFT is implemented in Python and has a ROS interface that allows real-time data exchange for monitoring and querying the model. It also includes a graphical user interface designed to make the model's decision-making process transparent and interpretable.