I am a vascular surgeon by training: seven years in hospital practice, board certified in 2015. In 2016 I moved into clinical research as a research physician, and for the last six years I have worked in clinical trial feasibility, today as a feasibility strategist at a global contract research organization. I started using AI in January 2023 out of curiosity; it stuck, and I have not spent a working day without it since. The study is that trajectory carried into research I own: clinical trial methodology (matched pairs, endpoints locked before analysis, blinded rating) applied to a question in mechanistic interpretability, built end to end with Claude as research partner.