Operating System Security Hardening Checker

Validate CIS benchmarks against Linux or Windows hosts to identify OS hardening gaps.

6|Updated Oct 25, 2025
One-click install
npx skills add https://github.com/williamzujkowski/cognitive-toolworks --skill operating-system-security-hardening-checker
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: Operating System Security Hardening Checker
Source: https://github.com/williamzujkowski/cognitive-toolworks/tree/main/skills/security-os-validator
Command: npx skills add https://github.com/williamzujkowski/cognitive-toolworks --skill operating-system-security-hardening-checker

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Verify OS hardening by validating CIS benchmarks against a target Linux or Windows host to identify gaps and improvement opportunities.

Core Features & Use Cases

  • CIS benchmark compliance checks for Linux and Windows Server
  • OS patch currency validation within a 30-day window
  • Kernel hardening verification (SELinux, AppArmor) and host-based firewall assessment
  • File integrity monitoring checks and remediation planning
  • Use Case: Before production deployment, generate a CIS-aligned remediation plan for your fleet

Quick Start

Run the OS hardening checker against the target host to generate a CIS-based hardening report.

Frequently Asked Questions about Operating System Security Hardening Checker

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I verify OS hardening against CIS benchmarks for my Linux or Windows host?▼

To verify OS hardening against CIS benchmarks, you can run an assessment that inputs your OS platform, distribution, and desired CIS level to output a compliance score, detailed findings, and remediation steps.

What does a CIS compliance check evaluate for kernel hardening and firewall configuration?▼

A CIS compliance check evaluates kernel hardening mechanisms like SELinux or AppArmor and assesses host-based firewall configurations to identify security gaps across multiple OS versions.

Can I use this CIS benchmark validation for both Linux distributions and Windows Server environments?▼

Yes, you can tailor CIS benchmark validation for both Linux distributions and Windows Server environments by specifying your os_platform and os_distribution inputs to assess patch status and security configurations.

How do I check OS patch currency and generate a remediation plan before production deployment?▼

You can check OS patch currency within a 30-day window and generate a CIS-aligned remediation plan for your fleet by running the hardening assessment against your target host before production deployment.

Does the hardening assessment validate SELinux and AppArmor configurations?▼

Yes, the hardening assessment validates kernel hardening configurations including SELinux and AppArmor enforcement, alongside host-based firewall rules and file integrity monitoring checks.

What inputs are required to tailor a CIS benchmark assessment for my target host?▼

You need to provide os_platform, os_distribution, and cis_level inputs to tailor the CIS benchmark assessment, which then outputs a compliance score, detailed findings, and remediation steps.