agentmods.dev

build-systems

A guide to building and maintaining C++ projects across platforms. It covers build tools such as CMake, Make, and Ninja, dependency managers such as Conan and vcpkg, and continuous integration and delivery.

In plain words
What is it for?
For setting up C++ builds, managing packages, supporting multiple platforms, and integrating builds with CI/CD pipelines.
Why use it?
It brings common build, dependency, cross-platform, and CI/CD work into one reference for production projects.

Skill for Claude CodeCodex

6 7mo ago B scan 40 tokens no licence
View the source file pluginagentmarketplace/custom-plugin-cpp
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/pluginagentmarketplace/custom-plugin-cpp/build-systems
Any agent
npx skills add pluginagentmarketplace/custom-plugin-cpp --skill build-systems
Clone the repo
git clone --depth 1 https://github.com/pluginagentmarketplace/custom-plugin-cpp

Made for: Claude Code, Codex.

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,582 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin unknown 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 $0.00040 $0.03582
Opus 5 $0.00020 $0.01791
Sonnet 5 $0.00008 $0.00716
Haiku 4.5 $0.00004 $0.00358

Measured yesterday against content hash c8af9496fd30, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

build-systems scanned grade B with 1 finding 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 yesterday.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/cmake_generator.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo apt-get update
skills/build-systems/SKILL.md · 531 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. yesterday First seen · 531 lines · 40 tokens per session scan B c8af9496fd30

Subscribe to this mod's changes

build-systems is a skill published in the GitHub repository pluginagentmarketplace/custom-plugin-cpp (6 stars, last pushed 7mo ago), with no licence file. It adds 40 tokens to every session and 3,582 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

DevOps and clouddevelopment
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