18-ot-ics-security

18-ot-ics-security is a skill for Claude Code from Masriyan/Claude-Code-CyberSecurity-Skill. It costs 63 tokens per session (2,558 once invoked), scanned A, original, no licence file.

A security-assessment aid for industrial control environments such as factories, power systems, and water facilities, including PLCs, HMIs, and SCADA servers.

In plain words
What is it for?
It is for reviewing industrial networks and protocols such as Modbus and DNP3, mapping threats to MITRE ATT&CK for ICS, and aligning recommendations with IEC 62443 and NIST guidance.
Why use it?
It helps identify risks in systems that control physical processes while emphasizing passive methods and safety approvals because mistakes can damage equipment or endanger people.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the cybersecurity plugin — 22 skills shipped together

Good fit It is for reviewing industrial networks and protocols such as Modbus and DNP3, mapping threats to MITRE ATT&CK for ICS, and aligning recommendations with IEC 62443 and NIST guidance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/masriyan/claude-code-cybersecurity-skill/18-ot-ics-security
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.

Any agent
npx skills add Masriyan/Claude-Code-CyberSecurity-Skill --skill 18-ot-ics-security
Clone the repo
git clone --depth 1 https://github.com/Masriyan/Claude-Code-CyberSecurity-Skill

Made for: Claude Code.

Or install cybersecurity, the plugin that ships this one along with the rest of its 22 skills.

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 18-ot-ics-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/18-ot-ics-security/github.svg)](https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/18-ot-ics-security)
Your own site
<a href="https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/18-ot-ics-security"><img src="https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/18-ot-ics-security/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 18-ot-ics-security

Your own site · 80×15
<a href="https://agentmods.dev/skills/masriyan/claude-code-cybersecurity-skill/18-ot-ics-security"><img src="https://agentmods.dev/badge/skills/masriyan/claude-code-cybersecurity-skill/18-ot-ics-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,558 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.02558
Opus 5.5 $0.00025 $0.01023
Sonnet 5.5 $0.00013 $0.00512
Haiku 4.5 $0.00006 $0.00256

Measured 5d ago against content hash 5cbdf29f3a66, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

18-ot-ics-security 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/ics_protocol_analyzer.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/18-ot-ics-security/SKILL.md · 195 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md 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. 5d ago Changed · +9 lines 5cbdf29f3a66
  2. 10d ago Changed · +23 lines · -1 tokens per session 908bc22c1223
  3. 1mo ago Changed 5b9959a0deae
  4. 1mo ago First seen · 163 lines · 64 tokens per session scan A ae3a9c045681

Subscribe to this mod's changes

18-ot-ics-security is a skill published in the GitHub repository Masriyan/Claude-Code-CyberSecurity-Skill (512 stars, last pushed 6d ago), with no licence file. It adds 63 tokens to every session and 2,558 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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