enip-cip

enip-cip is a skill for Claude Code from PurpleAILAB/Decepticon. It costs 81 tokens per session (3,060 once invoked), scanned A, original, Apache-2.0.

A security testing guide for EtherNet/IP and CIP, industrial protocols commonly used by Allen-Bradley PLCs in North American control systems. It covers finding controllers, reading their tag databases, and checking access to process controls.

In plain words
What is it for?
Use it to identify controllers, enumerate tags, read and test write access to process variables, check PLC execution-state controls, and review relevant Rockwell security issues.
Why use it?
It helps expose systems where anyone who can reach the service may be able to inspect process data, change values, or stop and restart a PLC.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to identify controllers, enumerate tags, read and test write access to process variables, check PLC execution-state controls, and review relevant Rockwell security issues.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/purpleailab/decepticon/enip-cip
About the project

Decepticon is an autonomous red-team agent that coordinates AI agents, security tools, sandboxes, and supporting services for authorized cybersecurity assessments. Security researchers and red teams can run it through its Docker stack, cloud service, command-line interface, or Python SDK, with the catalogue entries representing its available skills.

PurpleAILAB/Decepticon · 5,491 stars · on GitHub · decepticon.red

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 PurpleAILAB/Decepticon --skill enip-cip
Clone the repo
git clone --depth 1 https://github.com/PurpleAILAB/Decepticon

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 enip-cip

README.md
[![agentmods](https://agentmods.dev/badge/skills/purpleailab/decepticon/enip-cip/github.svg)](https://agentmods.dev/skills/purpleailab/decepticon/enip-cip)
Your own site
<a href="https://agentmods.dev/skills/purpleailab/decepticon/enip-cip"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/enip-cip/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 enip-cip

Your own site · 80×15
<a href="https://agentmods.dev/skills/purpleailab/decepticon/enip-cip"><img src="https://agentmods.dev/badge/skills/purpleailab/decepticon/enip-cip.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,060 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high YARA Match · line 31
    YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).
    Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
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 $0.00081 $0.03060
Opus 5 $0.00041 $0.01530
Sonnet 5 $0.00016 $0.00612
Haiku 4.5 $0.00008 $0.00306

Measured 9d ago against content hash 4875ae2e72b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

enip-cip 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 9d 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.

packages/decepticon/decepticon/skills/standard/exploit/ics-ot/enip-cip/SKILL.md · 278 lines

How it starts

The opening of the file, as written. The whole thing — 278 lines — stays where its author put it; the contents beside it link to each section on GitHub.

EtherNet/IP + CIP Attack Playbook (TCP 44818 / UDP 2222)

EtherNet/IP is the dominant North American ICS protocol — every Allen-Bradley ControlLogix, CompactLogix, and MicroLogix ships with it enabled by default. CIP (Common Industrial Protocol) rides on top. Most deployments have no authentication at the CIP layer: if you can reach TCP 44818, you can read the full tag database and, in scope, write to process variables or change PLC execution state.

SAFETY FIRST

CIP write operations (Write() on tags) and mode-change commands (Stop, Run, Reset) affect physical process equipment. A mode-change to Stop immediately halts the PLC program — the controlled process (conveyor, motor, pump, valve) goes to its fail-safe state or de-energizes. Confirm written scope authorization for any write/control-class operation. Read and enumerate operations (tag list, controller info, identity) are safe.

Prerequisites

# Install pylogix (Allen-Bradley EtherNet/IP client)
pip install pylogix

# Install cpppo (Rockwell EtherNet/IP / CIP toolkit)
pip install cpppo

# nmap EtherNet/IP scripts
# Built-in: enip-info.nse (ships with Nmap >= 7.80)
nmap -p 44818 --open -sV 10.0.0.0/24

Phase 1 — Discover

UDP 2222 List Identity broadcast

UDP 2222 carries the ENIP "List Identity" command — no session, no authentication. Send a broadcast and all EtherNet/IP devices on the subnet respond with vendor, product name, serial number, firmware revision, and IP.

# Using cpppo enip command-line
python3 -m cpppo.server.enip.list_identity 10.0.0.255
# Or unicast:
python3 -m cpppo.server.enip.list_identity 10.0.0.5

# Example output:
# {'product_name': 'ControlLogix5580', 'vendor_id': 1, 'device_type': 14,
#  'product_code': 166, 'revision': {'major': 33, 'minor': 11},
#  'serial_number': '0xA1B2C3D4', 'status': 12340}
# nmap enip-info script (TCP 44818)
nmap -p 44818 --script enip-info 10.0.0.5
# Returns: VendorID, DeviceType, ProductCode, Revision, Serial, ProductName, State

Read the full file on GitHub · 278 lines

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. 9d ago First seen · 278 lines · 81 tokens per session scan A 4875ae2e72b0

Subscribe to this mod's changes

enip-cip is a skill published in the GitHub repository PurpleAILAB/Decepticon (5,491 stars, last pushed 13d ago), licensed Apache-2.0. It adds 81 tokens to every session and 3,060 once invoked, about $0.0004 per session on Opus 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 2026-09-03.