FA-64771 / Clinical triage scoring / Open access
Inpatient fall risk score: moderate band upper range · case 01
A score of 25 is reported as low risk.
ROOT CAUSE
The moderate band excludes its lower edge.
VERIFIED REPAIR
Treat 25-44 as moderate.
Unsuccessful approach: Closing the band at an exclusive 40 reports a moderate score of 40 as low risk.
Case contract
Input {last_fall_days (or null), secondary_dx, aid, iv, gait, mental}. Toy points: a fall within the last 90 days (inclusive) 25; secondary diagnosis 15; aid none/bedrest/nurse 0, crutches/cane/walker 15, furniture 30; IV access 20; gait normal/bedrest/immobile 0, weak 10, impaired 20; mental status "forgets" or "overestimates" (overestimates own ability) 15, "oriented" 0. Risk: 0-24 LOW, 25-44 MODERATE, >= 45 HIGH. Return {score, risk}.
Why this case matters
Nursing risk scores map categorical observations to weighted points; recency windows, category tables and band edges fail independently.
1 / The failure
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
d = x['last_fall_days']
fell = d is not None and d <= 90
s = 25 if fell else 0
s += 15 if x['secondary_dx'] else 0
aid = x['aid']
s += 30 if aid == 'furniture' else 15 if aid in ('crutches', 'cane', 'walker') else 0
s += 20 if x['iv'] else 0
g = x['gait']
s += 20 if g == 'impaired' else 10 if g == 'weak' else 0
s += 15 if x['mental'] in ('forgets', 'overestimates') else 0
risk = 'HIGH' if s >= 45 else 'MODERATE' if s > 25 else 'LOW'
return {'score': s, 'risk': risk}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 301,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 10,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'cane',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 31,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 6,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'bedrest',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 302,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 30, 'risk': 'MODERATE'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 20,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 50, 'risk': 'HIGH'}),
('score exactly 25',
{'last_fall_days': 32,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 7,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'immobile',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 303,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 30,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'crutches',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 33,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 8,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 304,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 30, 'risk': 'MODERATE'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 40,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'cane',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 50, 'risk': 'HIGH'}),
('score exactly 25',
{'last_fall_days': 34,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 9,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'bedrest',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 305,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 50,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 35,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 10,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})]]
for label, args, expected in fixtures[N-1]:
check(label, solve(args), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| no risk factors | {'risk': 'LOW', 'score': 0} | {'risk': 'LOW', 'score': 0} | Passed |
| fall exactly 90 days ago | {'risk': 'MODERATE', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Passed |
| fall a year ago | {'risk': 'LOW', 'score': 20} | {'risk': 'LOW', 'score': 20} | Passed |
| furniture walking | {'risk': 'MODERATE', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Passed |
| walker user | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
| weak gait | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
| impaired gait | {'risk': 'HIGH', 'score': 60} | {'risk': 'HIGH', 'score': 60} | Passed |
| score exactly 40 | {'risk': 'MODERATE', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Passed |
| overestimates own ability | {'risk': 'MODERATE', 'score': 30} | {'risk': 'MODERATE', 'score': 30} | Passed |
| score exactly 25 | {'risk': 'LOW', 'score': 25} | {'risk': 'MODERATE', 'score': 25} | Failed |
| score exactly 45 | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
SHA-256 / bf0be39b445f136b0c8259b922d6853dd79b8ac5bb4abc32a5468aa4e76c3980
2 / The unsuccessful fix
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
d = x['last_fall_days']
fell = d is not None and d <= 90
s = 25 if fell else 0
s += 15 if x['secondary_dx'] else 0
aid = x['aid']
s += 30 if aid == 'furniture' else 15 if aid in ('crutches', 'cane', 'walker') else 0
s += 20 if x['iv'] else 0
g = x['gait']
s += 20 if g == 'impaired' else 10 if g == 'weak' else 0
s += 15 if x['mental'] in ('forgets', 'overestimates') else 0
risk = 'HIGH' if s >= 45 else 'MODERATE' if 25 <= s < 40 else 'LOW'
return {'score': s, 'risk': risk}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 301,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 10,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'cane',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 31,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 6,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'bedrest',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 302,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 30, 'risk': 'MODERATE'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 20,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 50, 'risk': 'HIGH'}),
('score exactly 25',
{'last_fall_days': 32,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 7,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'immobile',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 303,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 30,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'crutches',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 33,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 8,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 304,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 30, 'risk': 'MODERATE'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 40,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'cane',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 50, 'risk': 'HIGH'}),
('score exactly 25',
{'last_fall_days': 34,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 9,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'bedrest',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 305,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 50,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 35,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 10,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})]]
for label, args, expected in fixtures[N-1]:
check(label, solve(args), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| no risk factors | {'risk': 'LOW', 'score': 0} | {'risk': 'LOW', 'score': 0} | Passed |
| fall exactly 90 days ago | {'risk': 'LOW', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Failed |
| fall a year ago | {'risk': 'LOW', 'score': 20} | {'risk': 'LOW', 'score': 20} | Passed |
| furniture walking | {'risk': 'LOW', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Failed |
| walker user | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
| weak gait | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
| impaired gait | {'risk': 'HIGH', 'score': 60} | {'risk': 'HIGH', 'score': 60} | Passed |
| score exactly 40 | {'risk': 'LOW', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Failed |
| overestimates own ability | {'risk': 'MODERATE', 'score': 30} | {'risk': 'MODERATE', 'score': 30} | Passed |
| score exactly 25 | {'risk': 'MODERATE', 'score': 25} | {'risk': 'MODERATE', 'score': 25} | Passed |
| score exactly 45 | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
SHA-256 / 7e3eddaebe3efda9423e1a2c80496ba496e30cc07f509998028bed1243abee73
3 / The verified repair
Exit 0"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(x):
d = x['last_fall_days']
fell = d is not None and d <= 90
s = 25 if fell else 0
s += 15 if x['secondary_dx'] else 0
aid = x['aid']
s += 30 if aid == 'furniture' else 15 if aid in ('crutches', 'cane', 'walker') else 0
s += 20 if x['iv'] else 0
g = x['gait']
s += 20 if g == 'impaired' else 10 if g == 'weak' else 0
s += 15 if x['mental'] in ('forgets', 'overestimates') else 0
risk = 'HIGH' if s >= 45 else 'MODERATE' if s >= 25 else 'LOW'
return {'score': s, 'risk': risk}
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 301,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 10,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'cane',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 31,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 6,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'bedrest',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 302,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 30, 'risk': 'MODERATE'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 20,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 50, 'risk': 'HIGH'}),
('score exactly 25',
{'last_fall_days': 32,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 7,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'immobile',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 303,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 30,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'crutches',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 33,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 8,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 304,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 30, 'risk': 'MODERATE'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 40,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'cane',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 50, 'risk': 'HIGH'}),
('score exactly 25',
{'last_fall_days': 34,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 9,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})],
[('no risk factors',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'bedrest',
'mental': 'oriented'},
{'score': 0, 'risk': 'LOW'}),
('fall exactly 90 days ago',
{'last_fall_days': 90,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('fall a year ago',
{'last_fall_days': 305,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 20, 'risk': 'LOW'}),
('furniture walking',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'furniture',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('walker user',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'normal',
'mental': 'forgets'},
{'score': 45, 'risk': 'HIGH'}),
('weak gait',
{'last_fall_days': None,
'secondary_dx': False,
'aid': 'cane',
'iv': True,
'gait': 'weak',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'}),
('impaired gait',
{'last_fall_days': 50,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'impaired',
'mental': 'oriented'},
{'score': 60, 'risk': 'HIGH'}),
('score exactly 40',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'walker',
'iv': False,
'gait': 'weak',
'mental': 'oriented'},
{'score': 40, 'risk': 'MODERATE'}),
('overestimates own ability',
{'last_fall_days': None,
'secondary_dx': True,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'overestimates'},
{'score': 30, 'risk': 'MODERATE'}),
('score exactly 25',
{'last_fall_days': 35,
'secondary_dx': False,
'aid': 'none',
'iv': False,
'gait': 'normal',
'mental': 'oriented'},
{'score': 25, 'risk': 'MODERATE'}),
('score exactly 45',
{'last_fall_days': 10,
'secondary_dx': False,
'aid': 'none',
'iv': True,
'gait': 'normal',
'mental': 'oriented'},
{'score': 45, 'risk': 'HIGH'})]]
for label, args, expected in fixtures[N-1]:
check(label, solve(args), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| no risk factors | {'risk': 'LOW', 'score': 0} | {'risk': 'LOW', 'score': 0} | Passed |
| fall exactly 90 days ago | {'risk': 'MODERATE', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Passed |
| fall a year ago | {'risk': 'LOW', 'score': 20} | {'risk': 'LOW', 'score': 20} | Passed |
| furniture walking | {'risk': 'MODERATE', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Passed |
| walker user | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
| weak gait | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
| impaired gait | {'risk': 'HIGH', 'score': 60} | {'risk': 'HIGH', 'score': 60} | Passed |
| score exactly 40 | {'risk': 'MODERATE', 'score': 40} | {'risk': 'MODERATE', 'score': 40} | Passed |
| overestimates own ability | {'risk': 'MODERATE', 'score': 30} | {'risk': 'MODERATE', 'score': 30} | Passed |
| score exactly 25 | {'risk': 'MODERATE', 'score': 25} | {'risk': 'MODERATE', 'score': 25} | Passed |
| score exactly 45 | {'risk': 'HIGH', 'score': 45} | {'risk': 'HIGH', 'score': 45} | Passed |
SHA-256 / 5ab1c4f4235c7f4e8e537cae5207b814551abfe83f9887348410d9be860a782f
Verification & scope
A deterministic toy software model with explicitly stipulated thresholds and formulas; it is not clinical guidance, not a validated medical calculator, and makes no claim of conformance to any published protocol. Numbered variants vary patient and order inputs. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.
Observations recorded using Python 3.12.14 at 2026-09-29T14:47:27.609558+00:00.
Case digest / 27f3018343fda1a0af1948a5caad926b9ca1272999c49051cda9b4c28ebee3ae