Evaluating Claude Sonnet 4.6 for C++23 Code Generation
SaferSkills independently audited cpp-claude-evaluation (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
[!NOTE] This project leverages Claude.ai and or Claude Code for C++ development assistance.
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Claude Code can help with:
+ Writing new C++ code with modern standards (C++11/14/17/20/23) + Implementing algorithms, data structures, and design patterns + Generating boilerplate code and class scaffolding + Creating unit tests and test fixtures
+ Analyzing code for potential bugs, memory leaks, and undefined behavior + Identifying performance bottlenecks and optimization opportunities + Reviewing code for best practices and C++ idioms + Suggesting refactoring improvements
+ Explaining complex C++ concepts (templates, smart pointers, move semantics, etc.) + Debugging compiler errors and understanding error messages + Recommending appropriate STL containers and algorithms + Providing guidance on memory management and RAII principles
+ Assistance with CMake configuration + Help with build system setup and dependency management + Guidance on compiler flags and optimization settings
Claude can work with your existing codebase through file uploads and provide context-aware suggestions. For complex tasks, it can create complete, compilable code examples and explain the reasoning behind implementation decisions.
[!NOTE] The C++ Core Guidelines is a collaborative effort led by Bjarne Stroustrup and Herb Sutter to establish best practices for modern C++. These guidelines aim to help developers write safer, more efficient, and more maintainable code by providing concrete recommendations on:
+ Type safety and interfaces + Memory safety and error handling + Concurrency and performance + Code organization and style
The guidelines are designed to be supported by static analysis tools and focus on helping developers avoid common pitfalls while leveraging modern C++ features (C++11 and beyond). They emphasize writing code that is not just correct, but also clear, maintainable, and efficient.
+ Express ideas directly in code + Write code that is type-safe and resource-safe by default + Don't leak resources + Don't waste time or space + Prefer compile-time checking to run-time checking
[!NOTE] Claude.ai and Claude Code can evaluate any C++ program.
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See the examples and generated reports
+ A dynamic polymorphism + A global variable with a managed lifetime + A global variable with a managed lifetime in C++23 + A random number generator wrapper + Two threads and I/O + A producer consumer pattern + Write C++23 code to implement an AVL tree + Evaluation of AVL tree in C++23 + A pool allocator adhering to the std::allocator contract + Write C++20 code to implement page cache
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.