Surgical procedures rely upon an array of commonplace tools, implements and materials that mediate practice and disciplinary collaboration within the operating theatre. Substantial time is dedicated to the issue and provision of these artefacts and their timely exchange is critical to the successful accomplishment of surgical procedures. In this article, we consider the practice, knowledge and agency that informs how particular implements and materials are passed by the scrub nurse to the surgeon that in turn enables their deployment with regard to the particular procedure and the contingencies ‘at hand’. We address the technicalities of these ‘non‐technical skills’ and examine how they rely upon a disciplinary vision and interactional organisation that informs both the scrutiny of action and the ways in which implements and materials are handled and exchanged. We explore the implications of our analysis for our understanding of agency in action and the growing interest in developing robots or autonomous agents to support work and collaboration in health care.