cybersecurity-skills

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

Give any AI agent the security skills of a senior analyst

A junior analyst knows which Volatility3 plugin to run on a suspicious memory dump, which Sigma rules catch Kerberoasting, and how to scope a cloud breach across three providers. Your AI agent doesn't — unless you give it these skills.

This repo contains 754 structured cybersecurity skills spanning 26 security domains, each following the agentskills.io open standard. Every skill is mapped to five industry frameworks — MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, MITRE D3FEND, and NIST AI RMF — making this the only open-source skills library with unified cross-framework coverage. Clone it, point your agent at it, and your next security investigation gets expert-level guidance in seconds.

Five frameworks, one skill library

No other open-source skills library maps every skill to all five frameworks. One skill, five compliance checkboxes.

Framework	Version	Scope in this repo	What it maps
MITRE ATT&CK	v19.1	15 tactics · 286 techniques	Adversary behaviors and TTPs
NIST CSF 2.0	2.0	6 functions · 22 categories	Organizational security posture
MITRE ATLAS	v5.4	16 tactics · 84 techniques	AI/ML adversarial threats
MITRE D3FEND	v1.3	7 categories · 267 techniques	Defensive countermeasures
NIST AI RMF	1.0	4 functions · 72 subcategories	AI risk management

Example — a single skill maps across all five:

Skill	ATT&CK	NIST CSF	ATLAS	D3FEND	AI RMF
analyzing-network-traffic-of-malware	T1071	DE.CM	AML.T0047	D3-NTA	MEASURE-2.6

MITRE ATT&CK v19.1 — 754/754 skills mapped

Every skill carries a mitre_attack frontmatter list validated against MITRE ATT&CK v19.1 (the latest release) using the official mitreattack-python library — 286 distinct techniques across all 15 Enterprise tactics, plus ICS and Mobile techniques where relevant. Zero revoked or deprecated IDs. v19.1's restructured Defense Evasion (now split into Stealth and Defense Impairment) is reflected below.