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SQL injection, XSS, insecure deserialization, hardcoded secrets — caught before they ship.
N+1 queries, memory leaks, unnecessary re-renders, O(n²) loops — with concrete fixes.
God objects, deep nesting, single-responsibility violations — refactoring paths included.
Detects tightly-coupled logic, missing edge cases, and untestable side effects.
Swallowed exceptions, missing validations, unhandled promise rejections.
Naming, magic numbers, dead code — plus a rewritten version you can copy straight in.