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oscal

oscal is a plugin for Claude Code from metaschema-framework/claude-plugins. Its manifest loads nothing; the 9 skills it bundles cost 234 tokens per session together, scanned A, original, CC0-1.0.

A collection of skills and agents for working with OSCAL security models. OSCAL is a machine-readable standard for documenting security controls, compliance requirements, systems, assessments, and findings.

In plain words
What is it for?
Use it when creating or interpreting OSCAL security documents and related NIST, FedRAMP, or compliance artifacts.
Why use it?
It helps an agent understand the different OSCAL document types and apply the relevant model knowledge when handling security or compliance work.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

not rated 10repo 8mo ago A scan tokens not measured original CC0-1.0

Good fit Use it when creating or interpreting OSCAL security documents and related NIST, FedRAMP, or compliance artifacts.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add metaschema-framework/claude-plugins
/plugin install oscal
View source ↗ metaschema-framework/claude-plugins
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.

Clone the repo
git clone --depth 1 https://github.com/metaschema-framework/claude-plugins

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 oscal

README.md
[![agentmods](https://agentmods.dev/badge/plugins/metaschema-framework/claude-plugins/oscal/github.svg)](https://agentmods.dev/plugins/metaschema-framework/claude-plugins/oscal)
Your own site
<a href="https://agentmods.dev/plugins/metaschema-framework/claude-plugins/oscal"><img src="https://agentmods.dev/badge/plugins/metaschema-framework/claude-plugins/oscal/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 oscal

Your own site · 80×15
<a href="https://agentmods.dev/plugins/metaschema-framework/claude-plugins/oscal"><img src="https://agentmods.dev/badge/plugins/metaschema-framework/claude-plugins/oscal.svg" alt="Reviewed on agentmods" width="80" 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 9 skills cost 234 tokens a session between them.
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.
Security

Grade A, and why

oscal 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 2mo 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.

plugins/oscal/.claude-plugin/plugin.json · 13 lines

What it actually says

{
  "name": "oscal",
  "description": "Skills and agents for understanding OSCAL security models",
  "version": "0.5.0",
  "author": {
    "name": "Metaschema Framework",
    "url": "https://github.com/metaschema-framework"
  },
  "repository": "https://github.com/metaschema-framework/claude-plugins",
  "license": "Apache-2.0",
  "keywords": ["oscal", "security", "compliance", "nist", "fedramp"]
}
Contents

What it installs

The manifest is a name and a version. 9 skills travel with it, and installing the plugin installs all of them — 234 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. 2mo ago First seen · 13 lines scan A 564268812893

Subscribe to this mod's changes

oscal is a plugin published in the GitHub repository metaschema-framework/claude-plugins (10 stars, last pushed 8mo ago), licensed CC0-1.0. 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 2026-08-31.

Legal and complianceSecurity
Related

oscal compared with plugins from other repositories

oscal next to 6 plugins from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
oscalmetaschema-framework/claude-pluginsPlugin108mo agoCC0-1.0A—Claude Code
agb-recht-prueferKlotzkette/claude-fuer-deutsches-rechtPlugin1.8ktodayApache-2.0A—Claude Code
section-508Sushegaad/Claude-Skills-Governance-Risk-and-CompliancePlugin1.1k3d agoMITA—Claude Code
vclo-by-rohasrohasnagpal/legal-ai-skillsPlugin2041mo agoMITA—Claude Code
shinkokukazukinagata/shinkokuPlugin3682mo agoMITA—Claude Code
fedramp-sspGRCEngClub/claude-grc-engineeringPlugin432yesterdaynoneA—Claude Code
deeplaw-knowledge-osEysn0130/DeepLawPlugin61mo agoApache-2.0A—Claude Code