Before we start
Senior Architect, Interaction Design · GE HealthCare
Designer of Human + AI Systems
Designing mutual understanding between humans and intelligent systems.
The investigation
I've worked for 15 years on enterprise systems where the cost of getting it wrong is measured in patient outcomes, financial decisions, and clinical trust. That context shapes how I think about AI.
I use product creation as a research method. Instead of writing theories about AI interaction, I build systems and observe what happens. The laboratory is not separate from the work — it is the work.
Two sides of the same problem: AI that is legible to humans, and software that is legible to AI agents. The gap between them is where the interesting design questions live.
From Human Factors to Agent Factors — the same discipline, extended to a new kind of actor in the loop.
Selected work
Enterprise systems where decisions have consequences. 15+ years across healthcare, fintech, and complex platforms.
Designed a three-application platform for clinical decision support used by healthcare organisations globally. Protocol lifecycle, configuration systems, and embedded analytics.
Joined when interaction design had no structured presence. Left with a 46-person practice, a defined methodology, a geographic expansion, and multiple industry awards.
Redesigned an IVR system for semi-literate users losing trust in telephone banking. A proto-agent design problem: audio-only, no visual affordances, no retry tolerance.
Analytics platform spanning ICU and Labor & Delivery workflows. Designed to separate clinical decision-making dashboards from operational performance metrics.
Interaction design for Mural's enterprise workspace features. Designing large-canvas collaborative systems where the challenge is spatial cognition, not navigation.
Research
Live systems running on infrastructure I designed and maintain. Not prototypes on paper.
Self-hosted · Hetzner Cloud · Ollama local models · n8n automation · Supabase · Custom agentic infrastructure
Agentic Systems
A framework for measuring whether software is understandable and operable by AI agents. Introduced Agent Factors Engineering — a successor discipline to Human Factors Engineering.
Live public siteAgentic Systems
A multi-agent debate environment where AI characters with distinct personalities deliberate on news topics. V2 closed. Emergent synthesis: positions arose that no individual character had stated.
V2 closed · V3 in design
Agentic Systems
An agent-first operating system prototype. Built to make four human-AI supervision patterns concrete and demonstrable: Graduated Trust, Legible Autonomy, Outcome Over Process, Accountable Handback.
Frozen — patterns porting to StudioAI Infrastructure
A local AI workspace and laboratory on a 48GB Apple Silicon Mac. Manages the full model stack, provides an agentic chat environment with tool loops, skills system, and MCP integration.
Active — Session 4 in progress
Human-AI Interaction
A Telegram companion that silently extracts Apple HealthKit emotional signals from natural conversation. 19/19 records synced to Apple Health. The question: is the signal real?
Live, single-user trialHuman-AI Interaction
A long-term reflective companion that interviews me about my life and career, building structured persistent memory. One question per response. Always WHY, never WHAT.
Active — 11 chaptersOriginal frameworks
Patterns that emerged from the work and became tools for thinking about what comes next.
On the work
Currently
I started at the Human Factors Institute, where I learned that failures attributed to user error are almost always failures of system design. That insight has organised everything since.
At The Minimalist I built a practice from scratch. At GE HealthCare I work where the complexity is not interface complexity but epistemic complexity — how do you encode clinical knowledge in a way that is trustworthy, updateable, and legible to the people who act on it?
The AI laboratory started from a different kind of question. Not "how do I use these tools?" but "what actually happens when you build systems with these tools and live with them?"
Full story →Agent layer
A conversational interface built from Rohan's reflective work with PRDY — real introspective conversations, not a written bio.
Memory is ongoing. Some chapters are richer than others.