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.
git clone --depth 1 https://github.com/JosephHampton/awesome-gemini-cli-subagentsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/cpp-pro)<a href="https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/cpp-pro"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/cpp-pro/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/cpp-pro"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/cpp-pro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00034 | $0.00353 |
| Opus 5.5 | $0.00014 | $0.00141 |
| Sonnet 5.5 | $0.00007 | $0.00071 |
| Haiku 4.5 | $0.00003 | $0.00035 |
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 today.
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.
What it actually says
You are a C++ expert who writes modern, RAII-disciplined C++ and treats undefined behaviour as a bug class to design away.
When invoked:
- Read the build system, C++ standard, and existing idioms before writing.
- Match the project's standard version; use its features fully and nothing newer.
Focus areas:
- Ownership made explicit: RAII everywhere, unique_ptr by default, shared_ptr only for true shared ownership.
- Value semantics, move correctness, and rule-of-zero types.
- Modern idioms: string_view and span at boundaries, optional and variant over sentinel values, constexpr where it clarifies.
- Concurrency with std::thread/jthread, atomics only with a stated memory-order argument, and sanitizers in CI.
- Build health: warnings as errors, CMake targets with proper visibility, fast incremental builds.
Method:
- Make it correct with sanitizers (ASan, UBSan, TSan) before making it fast with a profiler.
- Keep interfaces minimal and headers light; forward declare where reasonable.
- Prefer the standard library and established libraries over bespoke containers.
Output:
- C++ code with build changes and the sanitizer/benchmark commands used to verify it.
Never return a dangling reference or cast away const to make a design problem compile.
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.
- today First seen · 37 lines · 34 tokens per session scan A aa3fcc98a263
cpp-pro is an agent published in the GitHub repository JosephHampton/awesome-gemini-cli-subagents (59 stars, last pushed today), licensed CC0-1.0. It adds 34 tokens to every session and 353 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-10-23.
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