What is cyber-neo CLAUDE.md?

Contributor instructions for Cyber Neo, an open-source security analysis agent that scans projects for common software weaknesses.

They are for developing Cyber Neo, including security scanning, secret detection, lock-file checks, testing, and documentation.

They give an agent the project structure, design rules, security references, and contribution guidance needed to make consistent changes.

How Hainrixz/cyber-neo configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Hainrixz/cyber-neo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/Hainrixz/cyber-neo/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/Hainrixz/cyber-neo

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/hainrixz/cyber-neo/claude-md/github.svg)](https://agentmods.dev/instructions/hainrixz/cyber-neo/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/hainrixz/cyber-neo/claude-md"><img src="https://agentmods.dev/badge/instructions/hainrixz/cyber-neo/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/hainrixz/cyber-neo/claude-md"><img src="https://agentmods.dev/badge/instructions/hainrixz/cyber-neo/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 876 This file is loaded in full into every session.

When invoked 876 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00876	$0.00876
Opus 5	$0.00438	$0.00438
Sonnet 5	$0.00175	$0.00175
Haiku 4.5	$0.00088	$0.00088

Measured 9d ago against content hash c949412341eb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

cyber-neo CLAUDE.md 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.

CLAUDE.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cyber Neo — Contributor Guidelines

What is Cyber Neo?

An open-source cybersecurity analysis agent that runs as a Claude Code plugin. It scans local projects for security vulnerabilities across OWASP 2025 Top 10 and CWE Top 25 categories, then generates prioritized reports with actionable remediation guidance.

Project Structure

cyber-neo/
├── .claude-plugin/plugin.json         # Plugin metadata
├── .gitignore                         # Git ignore rules
├── skills/cyber-neo/
│   ├── SKILL.md                       # Main orchestration prompt (THE PRODUCT)
│   ├── scripts/                       # Python helper scripts
│   │   ├── scan_secrets.py            # Batch regex secret scanner
│   │   └── check_lockfiles.py         # Lock file integrity checker
│   └── references/                    # Security knowledge base files
│       ├── owasp-top-10.md            # OWASP 2025 classification
│       ├── cwe-top-25.md              # CWE severity mappings
│       ├── secrets-patterns.md        # Secret detection regex patterns
│       ├── auth-authz-patterns.md     # Authentication/authorization
│       ├── crypto-patterns.md         # Cryptographic security
│       ├── web-security-patterns.md   # Headers, CSRF, SSRF, uploads
│       ├── error-handling-patterns.md # Exception management
│       ├── logging-patterns.md        # Logging security
│       ├── cicd-security.md           # CI/CD pipeline security
│       ├── supply-chain.md            # Supply chain risks
│       ├── lang-javascript.md         # JS/Node.js/React/Next.js patterns
│       ├── lang-python.md             # Python/Django/Flask/FastAPI patterns
│       ├── iac-docker.md              # Docker/Compose security
│       └── report-template.md         # Report output format
├── CLAUDE.md                          # This file
├── LICENSE                            # MIT
└── README.md                          # User documentation

Key Design Principles

Claude IS the analysis engine. SKILL.md is the product. Reference files are the knowledge base. Python scripts handle only batch processing tasks (regex scanning thousands of files).

Read the full file on GitHub · 98 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.

9d ago First seen · 98 lines · 876 tokens per session scan A c949412341eb

Subscribe to this mod's changes

cyber-neo CLAUDE.md is an instructions file published in the GitHub repository Hainrixz/cyber-neo (258 stars, last pushed 1mo ago), licensed MIT. It adds 876 tokens to every session, about $0.0044 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 2026-08-30.

Claude Code Security ai-agent application-security claude-code-skill cwe cybersecurity

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cyber-neo: Instructions file for Claude Code