Proof

Real code. Real findings.

Not mock-ups — real analyses across JavaScript, Python and Java. Including one where the second AI model (Double Check) caught the first model's own fix being wrong. Click any to enlarge.

JavaScript analysis — 60/100 — JavaScript60/100
= instead of ==, an off-by-one loop, and an unguarded .toFixed.

JavaScript analysis — 65/100 — JavaScript65/100
String price coercion, off-by-one access, NaN from a missing quantity, splice in forEach.

JavaScript analysis — 70/100 — JavaScript70/100
forEach with async/await that never awaits — fixed with Promise.all + map.

Python analysis — 60/100 — Double CheckPython60/100
Double Check returned NEEDS_FIX — it caught the first model’s division-by-zero fix being wrong.

Python analysis — 55/100 — Python55/100
Path traversal, log injection, and files left unclosed.

Python analysis — 65/100 — Python65/100
ValueError on int(), a bool() conversion flaw, and a KeyError on None.

Java analysis — 65/100 — Java65/100
NullPointerException from null ages, division by zero, raw types.

Java analysis — 60/100 — Java60/100
Hardcoded admin bypass, insecure Base64 password, unused import.

Java analysis — 70/100 — Java70/100
Negative quantity allowed (wrong total), no null/empty check.

Click any analysis to enlarge ↗

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