C++ memory and concurrency safety: AddressSanitizer (ASan), UndefinedBehaviorSanitizer
(UBSan), ThreadSanitizer (TSan), MemorySanitizer (MSan), MSVC `/sdl` and `/guard:cf`,
CERT C++ secure coding rules, integer-overflow safe arithmetic, and Control Flow Integrity.
USE WHEN: user mentions "ASan", "AddressSanitizer", "UBSan", "TSan", "MSan",
"use-after-free", "buffer overflow", "undefined behavior", "data race",
"CERT C++", "secure C++", "/sdl", "/GS", "ASLR", "DEP", "stack canary"
DO NOT USE FOR: Web/app security (use `owasp`), .NET security (`dotnet-security`),
cryptography APIs (use `cryptography`)
