Anthropic Cybersecurity Skills

Name: Anthropic Cybersecurity Skills
Author: mukul975

754 structured cybersecurity skills for AI agents · Mapped to 5 frameworks: MITRE ATT&CK, NIST CSF 2

by mukul975

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Price

Free

Works With

Claude CodeCursorWindsurfVS CodeDeveloper tool

About

754 production-grade cybersecurity skills for AI agents — mapped to 5 industry frameworks

MITRE ATT&CK · NIST CSF 2.0 · MITRE ATLAS · MITRE D3FEND · NIST AI RMF

⚠️ Community Project — This is an independent, community-created project. Not affiliated with Anthropic PBC.

Why this exists

AI agents are transforming cybersecurity — but they lack structured domain knowledge. A junior analyst knows which Volatility3 plugin to run on a suspicious memory dump. Your AI agent doesn't — unless you give it the skills.

Anthropic Cybersecurity Skills gives every AI agent instant access to 754 production-grade cybersecurity skills spanning 26 security domains. Each skill follows the agentskills.io open standard: YAML frontmatter for lightning-fast discovery, structured Markdown for step-by-step execution, and reference files for deep technical context.

What makes v1.2.0 different from every other security skills repo:

5-framework mapping — Every skill is mapped to MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS v5.5, MITRE D3FEND v1.3, and NIST AI RMF 1.0. No other open-source library does this.
AI-native format — Skills cost ~30 tokens to scan, provide full expert-level guidance when triggered, and work across 26+ AI agent platforms.
Real practitioner knowledge — Not generated summaries. Structured workflows that mirror how senior security professionals actually work.

🚀 Quick start

bash

# Option 1: npx (recommended)
npx skills add mukul975/Anthropic-Cybersecurity-Skills

# Option 2: Claude Code
/plugin marketplace add mukul975/Anthropic-Cybersecurity-Skills

# Option 3: Manual clone
git clone https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git
cd Anthropic-Cybersecurity-Skills

Works immediately with Claude Code, GitHub Copilot, OpenAI Codex CLI, Cursor, Gemini CLI, and any MCP-compatible agent.

🛡️ What's inside

754 skills across 26 security domains:

Don't lose this

Three weeks from now, you'll want Anthropic Cybersecurity Skills again. Will you remember where to find it?

Save it to your library and the next time you need Anthropic Cybersecurity Skills, it’s one tap away — from any AI app you use. Group it into a bench with the rest of the team for that kind of task and you can pull the whole stack at once.

⚡ Pro tip for geeks: add a-gnt 🤵🏻‍♂️ as a custom connector in Claude or a custom GPT in ChatGPT — one click and your library is right there in the chat. Or, if you’re in an editor, install the a-gnt MCP server and say “use my [bench name]” in Claude Code, Cursor, VS Code, or Windsurf.

🤵🏻‍♂️

a-gnt's Take

Our honest review

This plugs directly into your AI and gives it new abilities it didn't have before. 754 structured cybersecurity skills for AI agents · Mapped to 5 frameworks: MITRE ATT&CK, NIST CSF 2. Once connected, just ask your AI to use it. It's completely free and works across most major AI apps. This one just landed in the catalog — worth trying while it's fresh.

Tips for getting started

Tap "Get" above, pick your AI app, and follow the steps. Most installs take under 30 seconds.

You'll sign in with your existing account the first time. After that, it just works.

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