cybersecurity-skills

cybersecurity-skills is a plugin for Claude Code from Mikaru0Mystic/sectinel. Its manifest loads nothing; the 56 skills it bundles cost 3,391 tokens per session together, scanned A, a copy of cybersecurity-skills, Apache-2.0.

A collection of 753 cybersecurity procedures covering web security, penetration testing, digital forensics, threat intelligence, cloud security, and malware analysis.

In plain words
What is it for?
It is for tasks such as security testing, forensic investigations, malware analysis, cloud reviews, threat intelligence, and other defensive or offensive security work.
Why use it?
It provides focused guidance for many security tasks, helping an agent choose a documented workflow for the problem at hand.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit It is for tasks such as security testing, forensic investigations, malware analysis, cloud reviews, threat intelligence, and other defensive or offensive security work.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add Mikaru0Mystic/sectinel/plugin install cybersecurity-skills
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/Mikaru0Mystic/sectinel

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 cybersecurity-skills

README.md
[![agentmods](https://agentmods.dev/badge/plugins/mikaru0mystic/sectinel/anthropic-cybersecurity-skills/github.svg)](https://agentmods.dev/plugins/mikaru0mystic/sectinel/anthropic-cybersecurity-skills)
Your own site
<a href="https://agentmods.dev/plugins/mikaru0mystic/sectinel/anthropic-cybersecurity-skills"><img src="https://agentmods.dev/badge/plugins/mikaru0mystic/sectinel/anthropic-cybersecurity-skills/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 cybersecurity-skills

Your own site · 80×15
<a href="https://agentmods.dev/plugins/mikaru0mystic/sectinel/anthropic-cybersecurity-skills"><img src="https://agentmods.dev/badge/plugins/mikaru0mystic/sectinel/anthropic-cybersecurity-skills.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 56 skills cost 3,391 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 89% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

cybersecurity-skills 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 10d 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.

Origin

This is a copy

89% identical to cybersecurity-skills — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

arsenal/Anthropic-Cybersecurity-Skills/.claude-plugin/plugin.json · 6 lines

What it actually says

{
  "name": "cybersecurity-skills",
  "description": "753 cybersecurity skills covering web security, pentesting, DFIR, threat intelligence, cloud security, malware analysis, and more.",
  "version": "1.0.0"
}
Contents

What it installs

The manifest is a name and a version. 56 skills travel with it, and installing the plugin installs all of them — 3,391 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

1 file beside plugin.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 6 lines scan A 50b0805f000c

Subscribe to this mod's changes

cybersecurity-skills is a plugin published in the GitHub repository Mikaru0Mystic/sectinel (11 stars, last pushed 2mo ago), licensed Apache-2.0. 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. It is 89% identical to cybersecurity-skills, differing in 4 lines, and is treated as a copy.

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