Purpose After stroke, patients undergo frequent multidisciplinary assessments. Little is known about patients’ experiences of being assessed and the impact of assessment interactions and feedback for ongoing engagement in rehabilitation. This research aims to stimulate reflection on clinical interactions, even during routine clinical assessments, and the provision of assessment feedback. Materials and methods This study involved a detailed analysis of an authentic kitchen assessment interaction between an occupational therapist and a patient with aphasia following stroke. It used a speech function analysis based on systemic functional linguistics resulting in both dynamic and synoptic data, and a consideration of interactive framing, to explore assessment explanation and feedback. Results The analysis revealed the clinician’s interactive dominance in terms of number and type of moves, and misalignment of interactional framing at different points in the exchange. The session appeared to result in patient disengagement related both to the clinician’s misjudged response to the patient’s aphasia, and the context of assessment itself, characterised by reliance on question-and-answer exchanges, and a tendency to highlight deficit. Conclusions Assessment sessions may be emotionally challenging for patients after stroke and feedback may be interpreted as bad news. Sensitive communication is required to support psychological wellbeing and engagement in rehabilitation. IMPLICATIONS FOR REHABILITATION After stroke, patients are assessed by the multidisciplinary team to inform intervention and discharge planning. Little is known about the feedback patients receive or their views of this feedback, including when it is perceived as bad news. The presence of aphasia can complicate how assessments are conducted and how feedback is delivered and received. Greater awareness is needed of how feedback following assessment might impact patients’ psychological wellbeing and engagement in rehabilitation.