ia-cpp-systems SKILL.md skillA

ia-cpp-systems from iliaal/whetstone is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add iliaal/whetstone/ia-cpp-systems@git:20261009.5f049fe

Pins git:20261009.5f049fe in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
iliaal/whetstone
Path
plugins/whetstone/skills/ia-cpp-systems/SKILL.md
Versions recorded
7
Latest version
git:20261009.5f049fe, committed Oct 9, 2026
First version recorded
Aug 19, 2026
Size
5,623 bytes
Repository stars
35
License
MIT

Modern C++ patterns: RAII and ownership, rule of zero/five, exceptions and error handling, API and ABI boundaries, templates, and CMake tooling. Use when writing, reviewing, refactoring, or debugging C++, working with smart pointers, move semantics, memory leaks, template errors, or gtest. For plain C, see ia-c-systems.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# C++ Systems & Libraries

Covers C++17 as the baseline, with C++20 features called out where a project's standard allows them. For plain C (manual lifetimes, status enums, native extensions), see the `ia-c-systems` skill.

## Working rules

- Make resource ownership explicit and use RAII for release on every exit path.
- Keep borrowed views within backing-storage lifetimes and review copy/move behavior when special members change.
- Follow the project's error model and supported language standard.
- Preserve ABI and avoid invoking unknown callbacks while holding locks or invalidatable container iterators.

## Repo conventions outrank this skill

Check `CMakeLists.txt` for `CXX_STANDARD`, read `.clang-format` and `.clang-tidy`, and read two adjacent translation units before writing. Where they conflict with the rules below, they win.

The conflicts that actually happen:

| Local constraint | Consequence |
|---|---|
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add iliaal/whetstone/ia-cpp-systems@sha256:88e00629a618e6b7

The line at the top of this page pins the label git:20261009.5f049fe, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_qvz5qhbxeiuyywrl.svg)](https://markdownregistry.com/a/art_qvz5qhbxeiuyywrl)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 7 versions of this file, between Aug 19, 2026 and Oct 9, 2026, about one every 9 days.

versioncommittedcommitsizeaudit
git:20261009.5f049fe latest2026-10-09 5f049fe 5,623 BA view · diff
git:20260923.1fe69082026-09-23 1fe6908 5,577 BA view · diff
git:20260907.228ec832026-09-07 228ec83 5,579 BA view · diff
git:20260906.35b18c42026-09-06 35b18c4 13,254 BA view · diff
git:20260829.ebb47302026-08-29 ebb4730 12,760 BA view · diff
git:20260829.7a804662026-08-29 7a80466 12,724 BA view · diff
git:20260819.19890d22026-08-19 19890d2 11,764 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5623 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

iliaal/whetstone · 35 stars · license MIT · pushed 2026-11-04 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_qvz5qhbxeiuyywrl
GET https://markdownregistry.com/api/v1/resolve?ref=iliaal/whetstone/ia-cpp-systems
GET https://markdownregistry.com/api/v1/blob/88e00629a618e6b799af48cf83e84211c9350b5466ddc6012792517bc37533f4

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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