cmmc-nist-800-171

cmmc-nist-800-171 is a skill for Claude Code, Codex from vaquarkhan/compliance-agent-skills. It costs 188 tokens per session (3,054 once invoked), scanned A, original, MIT.

An assessment guide for CMMC 2.0 Level 2, a US cybersecurity certification level for contractors that handle Controlled Unclassified Information.

In plain words
What is it for?
Use it for security self-assessments, SPRS scoring, plans of action and milestones, and preparation for applicable government contract reviews.
Why use it?
It organizes the 110 security requirements from NIST SP 800-171 Revision 2 so a contractor can measure readiness and record unfinished work.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for security self-assessments, SPRS scoring, plans of action and milestones, and preparation for applicable government contract reviews.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vaquarkhan/compliance-agent-skills/cmmc-nist-800-171
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.

Any agent
npx skills add vaquarkhan/compliance-agent-skills --skill cmmc-nist-800-171
Clone the repo
git clone --depth 1 https://github.com/vaquarkhan/compliance-agent-skills

Made for: Claude Code, Codex.

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-nist-800-171

README.md
[![agentmods](https://agentmods.dev/badge/skills/vaquarkhan/compliance-agent-skills/cmmc-nist-800-171/github.svg)](https://agentmods.dev/skills/vaquarkhan/compliance-agent-skills/cmmc-nist-800-171)
Your own site
<a href="https://agentmods.dev/skills/vaquarkhan/compliance-agent-skills/cmmc-nist-800-171"><img src="https://agentmods.dev/badge/skills/vaquarkhan/compliance-agent-skills/cmmc-nist-800-171/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cmmc-nist-800-171

Your own site · 80×15
<a href="https://agentmods.dev/skills/vaquarkhan/compliance-agent-skills/cmmc-nist-800-171"><img src="https://agentmods.dev/badge/skills/vaquarkhan/compliance-agent-skills/cmmc-nist-800-171.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 188 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,054 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 5.1 $0.00188 $0.03054
Opus 5 $0.00094 $0.01527
Sonnet 5 $0.00038 $0.00611
Haiku 4.5 $0.00019 $0.00305

Measured 12d ago against content hash 45ee9a7ab14f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cmmc-nist-800-171 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 12d 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.

skills/cmmc-nist-800-171/SKILL.md · 189 lines

How it starts

The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CMMC NIST SP 800-171 (Level 2)

Overview

This skill implements Cybersecurity Maturity Model Certification (CMMC) 2.0 Level 2 readiness aligned to NIST SP 800-171 Revision 2 (Protecting Controlled Unclassified Information in Nonfederal Systems and Organizations, February 2020). Level 2 applies to contractors handling CUI and requires 110 security requirements (including enhanced requirements from NIST SP 800-171A assessment objectives).

CMMC 2.0 level NIST alignment Assessment type
Level 1 FAR 52.204-21 (17 practices) Annual self-assessment
Level 2 NIST SP 800-171 Rev 2 (110 practices) Triennial C3PAO assessment (priority acquisitions) or self-assessment per contract
Level 3 NIST SP 800-172 (advanced) Government-led assessment

CUI is government-created or -owned information requiring safeguarding per 32 CFR Part 2002 and the CUI Registry. Contractual obligations flow from DFARS 252.204-7012 (Safeguarding Covered Defense Information), 252.204-7019 (NIST SP 800-171 DoD Assessment), and 252.204-7020 (NIST SP 800-171 DoD Assessment Requirements).

SPRS (Supplier Performance Risk System) score:

  • Submit self-assessment score to SPRS at https://piee.eb.mil/ (PIEE)
  • Score calculation: −110 + (5 × MET) + (3 × NOT APPLICABLE) per DoD methodology—document each practice status
  • Minimum score expectations vary by solicitation; 110 MET is target for full compliance

14 NIST 800-171 requirement families: AC, AT, AU, CM, IA, IR, MA, MP, PS, PE, RA, CA, SC, SI.

Cross-skill mapping: cloud and boundary patterns overlap fedramp-moderate-baseline; access and identity testing uses access-control-identity-audit.

Reference documents: CMMC AB, NIST SP 800-171 Rev 2, NIST SP 800-171A (assessment objectives).

Read the full file on GitHub · 189 lines

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. 12d ago First seen · 189 lines · 188 tokens per session scan A 45ee9a7ab14f

Subscribe to this mod's changes

cmmc-nist-800-171 is a skill published in the GitHub repository vaquarkhan/compliance-agent-skills (2 stars, last pushed 18d ago), licensed MIT. It adds 188 tokens to every session and 3,054 once invoked, about $0.0009 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 2026-08-31.

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