cmmc

cmmc is a plugin for Claude Code from GRCEngClub/claude-grc-engineering. Its manifest loads nothing; the 2 skills, 3 commands it bundles cost 190 tokens per session together, scanned A, original, no licence file.

A guide to CMMC 2.0, the US Department of Defense cybersecurity certification model for contractors. It covers five security maturity levels and preparation for review by a C3PAO, an accredited assessment organisation.

In plain words
What is it for?
Use it to prepare for CMMC certification, organise security work by maturity level, and understand requirements for DoD contracts.
Why use it?
It helps organisations understand what security evidence and practices they may need before a CMMC assessment.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add GRCEngClub/claude-grc-engineering
agentmods
npx agentmods add plugins/grcengclub/claude-grc-engineering/cmmc
Clone the repo
git clone --depth 1 https://github.com/GRCEngClub/claude-grc-engineering

Made for: Claude Code.

Wrote 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.

agentmods badge for cmmc

README.md
[![agentmods](https://agentmods.dev/badge/plugins/grcengclub/claude-grc-engineering/cmmc.svg)](https://agentmods.dev/plugins/grcengclub/claude-grc-engineering/cmmc)
Your own site
<a href="https://agentmods.dev/plugins/grcengclub/claude-grc-engineering/cmmc"><img src="https://agentmods.dev/badge/plugins/grcengclub/claude-grc-engineering/cmmc.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 2 skills, 3 commands cost 190 tokens a session between them.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Security

Grade A, and why

cmmc 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 yesterday.

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/frameworks/cmmc/.claude-plugin/plugin.json · 22 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

Contents

What it installs

The manifest is a name and a version. 2 skills, 3 commands travel with it, and installing the plugin installs all of them — 190 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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 · 22 lines scan A 52f00ccb6a38

Subscribe to this mod's changes

cmmc is a plugin published in the GitHub repository GRCEngClub/claude-grc-engineering (393 stars, last pushed 5d ago), with no licence file. Its token cost is not measured: this kind of file is read by the harness, not the model. 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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