Guardrail

An AI-assisted UX workflow that turned two workshops into a working interactive prototype scientists could pressure-test in three weeks.

Workshop synthesis into a five-step decision flow

Interactive prototype built in three weeks

Three usability forums with domain experts

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Guardrail constraint panel grouping hard stops, watchouts, adjacent checks, and brand rules.

Guardrail

An AI-assisted UX workflow that turned two workshops into a working interactive prototype scientists could pressure-test in three weeks.

Workshop synthesis into a five-step decision flow

Interactive prototype built in three weeks

Three usability forums with domain experts

Three usability forums with domain experts

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OnCase

An evidence-led attention layer for community-based case managers, with synthetic sessions used to test the research protocol while primary user validation remains the next step.

60-entry evidence catalog with source classification

Five synthetic adversarial sessions used to test the research protocol

ccessible Material 3 prototype backed by 103 checks

Supervised referral agent with approval gates

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OnCase attention view with evidence and system blind spots visible

OnCase

An evidence-led attention layer for community-based case managers, with synthetic sessions used to test the research protocol while primary user validation remains the next step.

60-entry evidence catalog with source classification

Five synthetic adversarial sessions used to test the research protocol

ccessible Material 3 prototype backed by 103 checks

ccessible Material 3 prototype backed by 103 checks

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Solen Health App

A health app making a doctor's reasoning visible, not a diagnosis, built from a real diagnostic odyssey.

Eight survey participants navigating unresolved care

Questions and reasoning made visible, not conclusions

Working interactive prototype

Four rounds of usability testing and iteration

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Solen mobile care timeline organized by concern and date.

Solen Health App

A health app making a doctor's reasoning visible, not a diagnosis, built from a real diagnostic odyssey.

Eight survey participants navigating unresolved care

Questions and reasoning made visible, not conclusions

Working interactive prototype

Working interactive prototype

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Keep Pace

A ride-aware fueling assistant for cyclists

Cupboard-first planning model

Plan → Ride → Reflect learning loop

Glanceable, low-attention in-ride UI

Live MVP prototype

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Keep Pace in-ride screen showing upcoming fuel and remaining food.

Keep Pace

A ride-aware fueling assistant for cyclists

Cupboard-first planning model

Plan → Ride → Reflect learning loop

Glanceable, low-attention in-ride UI

Glanceable, low-attention in-ride UI

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© 2026 Michael Cullinan Principal UX Designer

© 2026 Michael Cullinan Principal UX Designer

© 2026 Michael Cullinan Principal UX Designer