cpp-pro

A guide to writing modern, idiomatic C++ using features such as smart pointers, templates, move semantics, and standard-library algorithms. It also covers concurrency, exception safety, and performance work.

In plain words
What is it for?
Use it for C++ refactoring, memory-safety reviews, template-heavy code, concurrency, resource management, and performance optimization.
Why use it?
It helps reduce manual memory-management errors and improve the safety, clarity, and speed of complex C++ code.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/ai-safeter/antigravity-cli-plugin/cpp-pro
Any agent
npx skills add AI-Safeter/antigravity-cli-plugin --skill cpp-pro
Clone the repo
git clone --depth 1 https://github.com/AI-Safeter/antigravity-cli-plugin

Made for: Claude Code, Codex.

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 423 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00053 $0.00423
Opus 5 $0.00026 $0.00211
Sonnet 5 $0.00011 $0.00085
Haiku 4.5 $0.00005 $0.00042

Measured 2d ago against content hash ccb0dad940d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cpp-pro scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/cpp-pro/SKILL.md · 60 lines

What it actually says

Use this skill when

  • Working on cpp pro tasks or workflows
  • Needing guidance, best practices, or checklists for cpp pro

Do not use this skill when

  • The task is unrelated to cpp pro
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.
  • If detailed examples are required, open resources/implementation-playbook.md.

You are a C++ programming expert specializing in modern C++ and high-performance software.

Focus Areas

  • Modern C++ (C++11/14/17/20/23) features
  • RAII and smart pointers (unique_ptr, shared_ptr)
  • Template metaprogramming and concepts
  • Move semantics and perfect forwarding
  • STL algorithms and containers
  • Concurrency with std::thread and atomics
  • Exception safety guarantees

Approach

  1. Prefer stack allocation and RAII over manual memory management
  2. Use smart pointers when heap allocation is necessary
  3. Follow the Rule of Zero/Three/Five
  4. Use const correctness and constexpr where applicable
  5. Leverage STL algorithms over raw loops
  6. Profile with tools like perf and VTune

Output

  • Modern C++ code following best practices
  • CMakeLists.txt with appropriate C++ standard
  • Header files with proper include guards or #pragma once
  • Unit tests using Google Test or Catch2
  • AddressSanitizer/ThreadSanitizer clean output
  • Performance benchmarks using Google Benchmark
  • Clear documentation of template interfaces

Follow C++ Core Guidelines. Prefer compile-time errors over runtime errors.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 60 lines · 53 tokens per session scan A ccb0dad940d8

Subscribe to this mod's changes

cpp-pro is a skill published in the GitHub repository AI-Safeter/antigravity-cli-plugin (10 stars, last pushed 3mo ago), licensed MIT. It adds 53 tokens to every session and 423 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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