Understand the failure.
Verify the repair.
Small, reproducible software failures. The broken implementation, the fix that didn’t work, and the one that passed—preserved together.
Explore the cases ↓How results are verified ↗WHAT THE ARCHIVE CONTAINS
100840 executable cases. 20168 are open.
Every case records the implementation that fails, the fix that did not work, and the repair that passed its checks—with recorded outputs and source hashes. This release adds 100840 cases across 20168 failure mechanisms and 254 domains.
The open tier gives you the failure and the unsuccessful fix for one case in every mechanism. The remaining 80672 cases, 5 variants per mechanism, are member-only: the verified repair, its recorded checks, and the full fixture suite are held in the member archive. Read the methodology ↗
A RECORD OF WHAT WENT WRONG
Browse the archive / 100840
Chest pain composite risk score: moderate band upper range · case 01
A score of 4 is reported as low risk.
Chest pain composite risk score: moderate band upper range · case 02
A score of 4 is reported as low risk.
Chest pain composite risk score: moderate band upper range · case 03
A score of 4 is reported as low risk.
Chest pain composite risk score: moderate band upper range · case 04
A score of 4 is reported as low risk.
Chest pain composite risk score: moderate band upper range · case 05
A score of 4 is reported as low risk.
Chest pain composite risk score: troponin normalisation · case 01
Almost every troponin, even a normal one, scores 2 points.
Chest pain composite risk score: troponin normalisation · case 02
Almost every troponin, even a normal one, scores 2 points.
Chest pain composite risk score: troponin normalisation · case 03
Almost every troponin, even a normal one, scores 2 points.
Chest pain composite risk score: troponin normalisation · case 04
Almost every troponin, even a normal one, scores 2 points.
Chest pain composite risk score: troponin normalisation · case 05
Almost every troponin, even a normal one, scores 2 points.
Age-adjusted sore throat score: older adult modifier · case 01
Patients aged 45 and over receive no age deduction.
Age-adjusted sore throat score: older adult modifier · case 02
Patients aged 45 and over receive no age deduction.
Age-adjusted sore throat score: older adult modifier · case 03
Patients aged 45 and over receive no age deduction.
Age-adjusted sore throat score: older adult modifier · case 04
Patients aged 45 and over receive no age deduction.
Age-adjusted sore throat score: older adult modifier · case 05
Patients aged 45 and over receive no age deduction.
Age-adjusted sore throat score: child modifier upper age · case 01
A 14-year-old receives no child point.
Age-adjusted sore throat score: child modifier upper age · case 02
A 14-year-old receives no child point.
Age-adjusted sore throat score: child modifier upper age · case 03
A 14-year-old receives no child point.
Age-adjusted sore throat score: child modifier upper age · case 04
A 14-year-old receives no child point.
Age-adjusted sore throat score: child modifier upper age · case 05
A 14-year-old receives no child point.
Age-adjusted sore throat score: eligibility age · case 01
A 3-year-old is reported as not applicable.
Age-adjusted sore throat score: eligibility age · case 02
A 3-year-old is reported as not applicable.
Age-adjusted sore throat score: eligibility age · case 03
A 3-year-old is reported as not applicable.
Age-adjusted sore throat score: eligibility age · case 04
A 3-year-old is reported as not applicable.
Age-adjusted sore throat score: eligibility age · case 05
A 3-year-old is reported as not applicable.
Age-adjusted sore throat score: fever criterion · case 01
A temperature of exactly 38.0 earns the fever point.
Age-adjusted sore throat score: fever criterion · case 02
A temperature of exactly 38.0 earns the fever point.
Age-adjusted sore throat score: fever criterion · case 03
A temperature of exactly 38.0 earns the fever point.
Age-adjusted sore throat score: fever criterion · case 04
A temperature of exactly 38.0 earns the fever point.
Age-adjusted sore throat score: fever criterion · case 05
A temperature of exactly 38.0 earns the fever point.
Age-adjusted sore throat score: signed score reporting · case 01
A negative age-adjusted score is reported as 0.
Age-adjusted sore throat score: signed score reporting · case 02
A negative age-adjusted score is reported as 0.
Age-adjusted sore throat score: signed score reporting · case 03
A negative age-adjusted score is reported as 0.
Age-adjusted sore throat score: signed score reporting · case 04
A negative age-adjusted score is reported as 0.
Age-adjusted sore throat score: signed score reporting · case 05
A negative age-adjusted score is reported as 0.
Mass casualty sorting algorithm: airway repositioning · case 01
Casualties who start breathing after airway repositioning are tagged expectant.
Mass casualty sorting algorithm: airway repositioning · case 02
Casualties who start breathing after airway repositioning are tagged expectant.
Mass casualty sorting algorithm: airway repositioning · case 03
Casualties who start breathing after airway repositioning are tagged expectant.
Mass casualty sorting algorithm: airway repositioning · case 04
Casualties who start breathing after airway repositioning are tagged expectant.
Mass casualty sorting algorithm: airway repositioning · case 05
Casualties who start breathing after airway repositioning are tagged expectant.
Mass casualty sorting algorithm: respiratory rate threshold · case 01
A casualty breathing exactly 30 times a minute is tagged RED.
Mass casualty sorting algorithm: respiratory rate threshold · case 02
A casualty breathing exactly 30 times a minute is tagged RED.
Mass casualty sorting algorithm: respiratory rate threshold · case 03
A casualty breathing exactly 30 times a minute is tagged RED.
Mass casualty sorting algorithm: respiratory rate threshold · case 04
A casualty breathing exactly 30 times a minute is tagged RED.
Mass casualty sorting algorithm: respiratory rate threshold · case 05
A casualty breathing exactly 30 times a minute is tagged RED.
Mass casualty sorting algorithm: perfusion criteria · case 01
A casualty without a radial pulse but with brisk refill is tagged YELLOW.
Mass casualty sorting algorithm: perfusion criteria · case 02
A casualty without a radial pulse but with brisk refill is tagged YELLOW.
Mass casualty sorting algorithm: perfusion criteria · case 03
A casualty without a radial pulse but with brisk refill is tagged YELLOW.
Mass casualty sorting algorithm: perfusion criteria · case 04
A casualty without a radial pulse but with brisk refill is tagged YELLOW.
Mass casualty sorting algorithm: perfusion criteria · case 05
A casualty without a radial pulse but with brisk refill is tagged YELLOW.
Mass casualty sorting algorithm: walking check order · case 01
Walking wounded who breathe fast are tagged RED instead of GREEN.
Mass casualty sorting algorithm: walking check order · case 02
Walking wounded who breathe fast are tagged RED instead of GREEN.
Mass casualty sorting algorithm: walking check order · case 03
Walking wounded who breathe fast are tagged RED instead of GREEN.
Mass casualty sorting algorithm: walking check order · case 04
Walking wounded who breathe fast are tagged RED instead of GREEN.
Mass casualty sorting algorithm: walking check order · case 05
Walking wounded who breathe fast are tagged RED instead of GREEN.
Inpatient fall risk score: fall recency window · case 01
A fall from years ago still adds 25 points.
Inpatient fall risk score: fall recency window · case 02
A fall from years ago still adds 25 points.
Inpatient fall risk score: fall recency window · case 03
A fall from years ago still adds 25 points.
Inpatient fall risk score: fall recency window · case 04
A fall from years ago still adds 25 points.
Inpatient fall risk score: fall recency window · case 05
A fall from years ago still adds 25 points.
Inpatient fall risk score: furniture-walking aid · case 01
Patients holding on to furniture score like cane users.
Inpatient fall risk score: furniture-walking aid · case 02
Patients holding on to furniture score like cane users.
Inpatient fall risk score: furniture-walking aid · case 03
Patients holding on to furniture score like cane users.
Inpatient fall risk score: furniture-walking aid · case 04
Patients holding on to furniture score like cane users.
Inpatient fall risk score: furniture-walking aid · case 05
Patients holding on to furniture score like cane users.
Inpatient fall risk score: gait weighting · case 01
A weak gait scores the same 20 points as an impaired gait.
Inpatient fall risk score: gait weighting · case 02
A weak gait scores the same 20 points as an impaired gait.
Inpatient fall risk score: gait weighting · case 03
A weak gait scores the same 20 points as an impaired gait.
Inpatient fall risk score: gait weighting · case 04
A weak gait scores the same 20 points as an impaired gait.
Inpatient fall risk score: gait weighting · case 05
A weak gait scores the same 20 points as an impaired gait.
Inpatient fall risk score: moderate band upper range · case 01
A score of 25 is reported as low risk.
Inpatient fall risk score: moderate band upper range · case 02
A score of 25 is reported as low risk.
Inpatient fall risk score: moderate band upper range · case 03
A score of 25 is reported as low risk.
Inpatient fall risk score: moderate band upper range · case 04
A score of 25 is reported as low risk.
Inpatient fall risk score: moderate band upper range · case 05
A score of 25 is reported as low risk.
Inpatient fall risk score: mental status categories · case 01
Patients who overestimate their own mobility receive no mental status points.
Inpatient fall risk score: mental status categories · case 02
Patients who overestimate their own mobility receive no mental status points.
Inpatient fall risk score: mental status categories · case 03
Patients who overestimate their own mobility receive no mental status points.
Inpatient fall risk score: mental status categories · case 04
Patients who overestimate their own mobility receive no mental status points.
Inpatient fall risk score: mental status categories · case 05
Patients who overestimate their own mobility receive no mental status points.
Four-item dehydration scale with weight-loss override: some band upper edge · case 01
A score of exactly 4 is reported as moderate-severe.
Four-item dehydration scale with weight-loss override: some band upper edge · case 02
A score of exactly 4 is reported as moderate-severe.
Four-item dehydration scale with weight-loss override: some band upper edge · case 03
A score of exactly 4 is reported as moderate-severe.
Four-item dehydration scale with weight-loss override: some band upper edge · case 04
A score of exactly 4 is reported as moderate-severe.
Four-item dehydration scale with weight-loss override: some band upper edge · case 05
A score of exactly 4 is reported as moderate-severe.
Four-item dehydration scale with weight-loss override: severe weight-loss override · case 01
A measured 10% weight loss does not force the severe category.
Four-item dehydration scale with weight-loss override: severe weight-loss override · case 02
A measured 10% weight loss does not force the severe category.
Four-item dehydration scale with weight-loss override: severe weight-loss override · case 03
A measured 10% weight loss does not force the severe category.
Four-item dehydration scale with weight-loss override: severe weight-loss override · case 04
A measured 10% weight loss does not force the severe category.
Four-item dehydration scale with weight-loss override: severe weight-loss override · case 05
A measured 10% weight loss does not force the severe category.
Four-item dehydration scale with weight-loss override: override never downgrades · case 01
A severely dehydrated child with 4% weight loss is downgraded to SOME.
Four-item dehydration scale with weight-loss override: override never downgrades · case 02
A severely dehydrated child with 4% weight loss is downgraded to SOME.
Four-item dehydration scale with weight-loss override: override never downgrades · case 03
A severely dehydrated child with 4% weight loss is downgraded to SOME.
Four-item dehydration scale with weight-loss override: override never downgrades · case 04
A severely dehydrated child with 4% weight loss is downgraded to SOME.
Four-item dehydration scale with weight-loss override: override never downgrades · case 05
A severely dehydrated child with 4% weight loss is downgraded to SOME.
Four-item dehydration scale with weight-loss override: tears item order · case 01
Absent tears score 1 and decreased tears score 2.
Four-item dehydration scale with weight-loss override: tears item order · case 02
Absent tears score 1 and decreased tears score 2.
Four-item dehydration scale with weight-loss override: tears item order · case 03
Absent tears score 1 and decreased tears score 2.
Four-item dehydration scale with weight-loss override: tears item order · case 04
Absent tears score 1 and decreased tears score 2.
Four-item dehydration scale with weight-loss override: tears item order · case 05
Absent tears score 1 and decreased tears score 2.
INSPECTABLE BY DESIGN
Every result has a runnable source.
Runnable implementations with recorded outputs, source hashes, and explicit contracts. Related variants share a failure mechanism and belong together in evaluation splits.
Read the methodology ↗