Tasks
212 fixed worlds, built from 32 scenario templates in 7 groups. Each one replays the same events and sensor noise for every model.
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One person
Eight virtual types, from a 9-year-old to a 70-year-old.
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A hidden calendar
Meals, exercise, illness and faults the agent is never told about.
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Pump and sensor
A Dana-i pump and a CGM with sensor error and delay.
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72 hours
One decision an hour, plus up to six the agent triggers each day.
- Meal
- Exercise
- Stress
- Illness
- Sleep loss
- Alcohol
- Pump under-delivery
- Sensor drift
The number on each row is the best model's mean COGI. Open a row to see the people.
Meal timing and absorption
Meals that arrive late, overlap, or never arrive after the dose.
A01 Repeated small intakes overlapping a slowly absorbed main meal 74.7
A02 Two slow-meal tails overlapping subsequent intake 75.0
A03 A meal cancelled after pre-bolusing, followed by activity 77.9
A04 Breakfast cancelled after a meal bolus, followed by prolonged fasting 81.4
Insulin from earlier doses
Earlier doses still acting when the next decision is due.
B01 Repeated dosing after a small meal; absorption ends while insulin effects overlap 80.7
B02 Activity and small meals after earlier stacked doses 77.4
B03 Remaining extended delivery after a cancelled meal, with delayed replacement intake 82.1
B04 Rescue carbohydrate still absorbing while the main meal is delayed 74.8
Exercise
Activity quietly pulls glucose down while the agent sees only the fall.
C01 Two activity bouts interleaved with replenishment and meals 82.5
C02 A transient increase in hepatic glucose output followed by aerobic activity 80.8
C03 Delayed effects of evening activity and alcohol 79.7
C04 Breakfast and lunch skipped during prolonged aerobic activity 81.4
Changing insulin needs
Stress, sleep loss and dawn change what a unit of insulin does.
D01 Two short stress episodes resolving before subsequent activity 78.5
D02 Insulin needs returning after sleep loss and the dawn phenomenon 74.3
D03 Dawn-related needs receding during slow breakfast absorption and later fast intake 82.1
D04 Sleep-loss-related needs recovering during lunch absorption and later intake 81.6
D05 Two post-meal stress episodes resolving during slow and fast intake 81.0
D06 A slow overnight meal tail overlapping delayed alcohol effects and next-morning intake 80.7
Pump under-delivery
The pump reports a dose that never fully reaches the body.
E01 Silent under-delivery overlapping multiple meals 55.6
E02 Three intermittent under-delivery episodes with irregular meals 58.1
E03 Active repair of under-delivery followed by activity 54.8
E04 Silent under-delivery combined with progressively false-high sensor readings 53.1
Sensor errors
The reading itself drifts, gaps or lies.
F01 An activity-related glucose fall combined with false-high sensor readings 75.2
F02 Real post-meal glucose input combined with false-low sensor readings 65.3
F03 Meals and activity around a sensor-signal gap 72.5
F04 Illness recovery combined with incorrect calibration and sensor drift 73.6
F05 Calibration expiry with residual slow-meal absorption and recent dosing 79.2
F06 Missed meals and exercise causing low glucose, masked by positive sensor bias 63.4
Illness and recovery
Insulin needs and appetite recover on different clocks.