cybersecurity-skills
CLAUDE.md0 starsChanged 2 months agoMITView on GitHub
Cybersecurity Skills is a collection of cybersecurity skill prompts for AI coding agents. Skills are authored as Claude Code SKILL.md files (the canonical format) and adapted for Cursor and Codex via a build script. Every skill follows the Anthropic skill creator guidelines: Frontmatter fields: - name — Slug used for /skill-name invocation. Lowercase + hyphens only. - description — Explains WHAT the skill does and WHEN to use it. Claude uses this to decide automatic invocation. Be "pushy" to combat…
In this repository30 other files it gives its agents.
- cybersecurity-skillsSkill
- ai-risk-managementSkill
- api-auditSkill
- breach-patternsSkill
- cloud-auditSkill
- container-auditSkill
- crypto-auditSkill
- csf-mappingSkill
- dependency-auditSkill
- disk-forensicsSkill
- finding-triageSkill
- hipaa-auditSkill
- iam-auditSkill
- incident-triageSkill
- mobile-auditSkill
- osint-reconSkill
- owasp-auditSkill
- pci-auditSkill
- privacy-engineeringSkill
- prompt-injectionSkill
- reconSkill
- red-team-engagementSkill
- secrets-auditSkill
- security-commsSkill
- siem-detectionSkill
- soc-operationsSkill
- threat-huntingSkill
- threat-modelingSkill
- vuln-researchSkill
- web-pentestSkill
The file
We split this CLAUDE.md into the rules it gives an agent
10 rules. About 0 are common, 5 are distinctive, and 5 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈5
Distinctive · estimate
This author's own choices. Worth a look.
5
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 36
Every skill follows the Anthropic skill creator guidelines:
- Distinctive: line 54
Use imperative form ("Run this command", "Check for X")
- Very specific: line 55
Keep SKILL.md under 500 lines
- Very specific: line 67
Create skills/<skill-name>/SKILL.md using templates/skill-template.md
- Very specific: line 68
Use proper frontmatter (name, description, allowed-tools)
- Distinctive: line 69
Write instructions in imperative form
- Very specific: line 70
Run node scripts/build-adapters.mjs to generate adapters
- Very specific: line 71
Test the skill in Claude Code by copying to .claude/skills/
- Distinctive: line 75
All skills must include an authorization check before taking action
- Distinctive: line 78
Keep descriptions "pushy" — include all relevant trigger phrases so the skill activates when needed
≈ “Common” is an estimate: at least 1 in 5 of the 26,980 CLAUDE.md files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
CLAUDE.md
Project Overview
Cybersecurity Skills is a collection of cybersecurity skill prompts for AI coding agents. Skills are authored as Claude Code SKILL.md files (the canonical format) and adapted for Cursor and Codex via a build script.
Supported Agents
| Agent | Format | Location |
| Claude Code | SKILL.md (canonical) | skills/<skill-name>/SKILL.md — copy to .claude/skills/ |
| Cursor | .mdc rule files | adapters/cursor/ |
| Codex | Instruction .md | adapters/codex/ |
Directory Structure
skills/
├── recon/SKILL.md
├── owasp-audit/SKILL.md
├── disk-forensics/SKILL.md
├── osint-recon/SKILL.md
├── incident-triage/SKILL.md
└── cloud-audit/SKILL.md
adapters/
├── cursor/ # Generated .mdc files
└── codex/ # Generated .md files
templates/
└── skill-template.md
scripts/
└── build-adapters.mjsSkill Format (Claude Code SKILL.md)
Every skill follows the Anthropic skill creator guidelines:
---
name: skill-name # Lowercase, hyphens, max 64 chars
description: "What it does and when to use it. 200-1024 chars. Include trigger phrases."
allowed-tools: Bash, Read, Write # Tools the skill can use
---Frontmatter fields:
name— Slug used for/skill-nameinvocation. Lowercase + hyphens only.description— Explains WHAT the skill does and WHEN to use it. Claude uses this to decide automatic invocation. Be "pushy" to combat undertriggering.allowed-tools— Comma-separated list of tools the skill can access.disable-model-invocation— Settruefor manual-only skills (e.g., deploy).user-invocable— Setfalsefor background knowledge only.
Content guidelines:
- Use imperative form ("Run this command", "Check for X")
- Keep SKILL.md under 500 lines
- Move reference material to separate files if needed
- Define output formats explicitly
Build Commands
node scripts/build-adapters.mjs # Generate Cursor + Codex adapters from SKILL.md filesCreating a New Skill
- Create
skills/<skill-name>/SKILL.mdusingtemplates/skill-template.md - Use proper frontmatter (
name,description,allowed-tools) - Write instructions in imperative form
- Run
node scripts/build-adapters.mjsto generate adapters - Test the skill in Claude Code by copying to
.claude/skills/
Guidelines
- All skills must include an authorization check before taking action
- Skills should refuse destructive or malicious use cases
- Focus on educational value and professional security workflows
- Keep descriptions "pushy" — include all relevant trigger phrases so the skill activates when needed
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

