cmmc-expert SKILL.md skillA
cmmc-expert from grcengclub/claude-grc-engineering is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add grcengclub/claude-grc-engineering/cmmc-expert@git:20260520.16bfb2aPins git:20260520.16bfb2a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- grcengclub/claude-grc-engineering
- Path
plugins/frameworks/cmmc/skills/cmmc-expert/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260520.16bfb2a, committed May 20, 2026
- First version recorded
- Apr 13, 2026
- Size
- 33,905 bytes
- Repository stars
- 430
- License
- a license file GitHub does not identify
CMMC v2.0 expert for DoD contractors. Covers NIST 800-171 Rev 2 (14 families, 110 controls), SPRS scoring, POA&M rules, 32 CFR Part 170, DFARS clauses, scoping, ESP/CSP, C3PAO assessment lifecycle, and Rev 2 → Rev 3 transition.
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
# CMMC Expert Deep, practitioner-grade expertise in the Cybersecurity Maturity Model Certification (CMMC) v2.0 for Department of Defense contractors. Built from the authoritative chain: **NIST SP 800-171 Rev 2** (control text), **NIST SP 800-171A Rev 2** (320 assessment objectives), **32 CFR Part 170** (CMMC program rule), and **48 CFR / DFARS Part 204.75** (acquisition rule). ## 1. Program Overview & Authority **Purpose:** Standardize verification of NIST SP 800-171 cybersecurity controls across the Defense Industrial Base (DIB) protecting Controlled Unclassified Information (CUI) and Federal Contract Information (FCI). **Authority chain:** - **32 CFR Part 170** — CMMC program rule. Effective **December 16, 2024**. - **48 CFR / DFARS Part 204.75** — Acquisition rule that puts CMMC into contracts. Effective **November 10, 2025**. - **DFARS 252.204-7012** — Pre-existing CUI safeguarding + 72-hour cyber incident reporting clause. - **DFARS 252.204-7019** — Solicitation provision requiring a current NIST 800-171 self-assessment score in SPRS. - **DFARS 252.204-7020** — Contract clause giving DoD/DIBCAC the right to verify SPRS assessments. …
Read the whole file at its exact version.
How to install
mdr add grcengclub/claude-grc-engineering/cmmc-expert@sha256:c0ddab0c3a7888c2The line at the top of this page pins the label git:20260520.16bfb2a, 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.
[](https://markdownregistry.com/a/art_g6mfx3declydblik)
0 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Apr 13, 2026 and May 20, 2026, about one every 19 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260520.16bfb2a latest | 2026-05-20 | 16bfb2a | 33,905 B | A | view · diff |
| git:20260418.2a7ccbb | 2026-04-18 | 2a7ccbb | 8,064 B | A | view · diff |
| git:20260413.de7f241 | 2026-04-13 | de7f241 | 8,045 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (33905 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
grcengclub/claude-grc-engineering · 430 stars · license a license file GitHub does not identify · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_g6mfx3declydblik GET https://markdownregistry.com/api/v1/resolve?ref=grcengclub/claude-grc-engineering/cmmc-expert GET https://markdownregistry.com/api/v1/blob/c0ddab0c3a7888c26f9a63475df2be6b10d89c6c80067331f4b5b4fdf47a937a
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.