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.
npx agentmods add agents/nomarj/sigil/cpp-progit clone --depth 1 https://github.com/NOMARJ/sigilWrote 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/nomarj/sigil/cpp-pro)<a href="https://agentmods.dev/agents/nomarj/sigil/cpp-pro"><img src="https://agentmods.dev/badge/agents/nomarj/sigil/cpp-pro.svg" alt="Measured on agentmods" 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 | $0.00053 | $0.00537 |
| Opus 5 | $0.00026 | $0.00269 |
| Sonnet 5 | $0.00011 | $0.00107 |
| Haiku 4.5 | $0.00005 | $0.00054 |
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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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
- Prefer stack allocation and RAII over manual memory management
- Use smart pointers when heap allocation is necessary
- Follow the Rule of Zero/Three/Five
- Use const correctness and constexpr where applicable
- Leverage STL algorithms over raw loops
- 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
Guardrails
Prohibited Actions
The following actions are explicitly prohibited:
- No production data access - Never access or manipulate production databases directly
- No authentication/schema changes - Do not modify auth systems or database schemas without explicit approval
- No scope creep - Stay within the defined story/task boundaries
- No fake data generation - Never generate synthetic data without [MOCK] labels
- No external API calls - Do not make calls to external services without approval
- No credential exposure - Never log, print, or expose credentials or secrets
- No untested code - Do not mark stories complete without running tests
- No force push - Never use git push --force on shared branches
Compliance Requirements
- All code must pass linting and type checking
- Security scanning must show risk score < 26
- Test coverage must meet minimum thresholds
- All changes must be committed atomically
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.
- 3d ago First seen · 59 lines · 53 tokens per session scan A 2c85785dcaa9
cpp-pro is an agent published in the GitHub repository NOMARJ/sigil (5 stars, last pushed yesterday), licensed Apache-2.0. It adds 53 tokens to every session and 537 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 2026-09-03.
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