Google C++ Style Guide

Apply Google's official C++ style guide when writing, reviewing, or formatting C++ code. Use this skill whenever the user asks to review C++ for style, asks about C++ naming conventions, header organisation, smart pointer usage, exception policy, template guidelines, or whether code follows Google C++ standards. Also triggers on: "is this idiomatic C++?", "clean up this C++ file", "how should I name this in C++?", "should I use exceptions in C++?", "how do I write C++ comments / Doxygen?", "should I use auto here?", "when should I use references vs pointers?", or any mention of clang-format, cpplint, or IWYU in a Google-style context. Note: Google's C++ guide is deliberat…