The people agents act for, as evidence, not empathy.
Each persona is a set of parameters enforced where the agent acts: patience, reading level, dexterity, input mode, device and network. Precision is published per persona, confirmed by paid testers from the groups we model.
First-timer on mobile
Never visited, small screen, reads everything once.
patience 5 · techLiteracy 4 · device iPhone 13 · network 4G
Careful evaluator
Reads policies before committing; abandons on ambiguity.
patience 8 · riskAversion 9 · readingLevel C1
Impatient shopper
Skims, taps the first plausible button, gives up after 2 dead ends.
patience 2 · goalFocus 9
Older adult, low dexterity
Needs large targets and forgiving forms. Least valid simulation, human-confirmed.
dexterity 3 (min target 44px) · vision low · patience 6
Non-native reader (B1)
Reads English at CEFR B1; idioms and dense legal copy cause errors.
readingLevel B1 · language es-ES
Keyboard-only
No pointer. Finds focus traps and unreachable controls.
inputMode keyboard-only
Accessibility-tree navigation probe
Navigates only through the accessibility tree. A probe, not a simulation of blind users.
inputMode a11y-tree · vision none
Colour-vision deficiency (deutan)
Colour-only signals are invisible.
vision cvd-deutan
Low bandwidth (3G)
Slow network exposes layout shift and timeouts.
network 3G · device Moto G
Distracted multitasker
Leaves and returns mid-flow; tests session persistence.
patience 4 · priorState interrupted
Power user
Uses search, filters and shortcuts; expects speed.
techLiteracy 9 · patience 3
Returning customer
Signed-in state, saved details, reorder flows.
priorState signed-in
Simulated users are too polite and inflate success (CMU Sim2Real); older and non-native personas are the least valid (Lost in Simulation). That is why those personas are human-confirmed and flagged in every report.
Confirmed ÷ flagged, per persona, with n and a 95% confidence interval. First publication Q1 2027. How it is measured
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