security-auditor

security-auditor is a cursor rule for Cursor from MN-Lizard-Team/aiyu-multi-agent. It costs 54 tokens per session (1,376 once invoked), scanned A, original, Apache-2.0.

A cybersecurity audit specialist that examines software for vulnerabilities and attack risks. It uses attacker-focused review methods and references areas such as OWASP, authentication, injection, and supply-chain security.

In plain words
What is it for?
Use it for vulnerability scans, security reviews, OWASP-related checks, attack-surface analysis, and risk assessments.
Why use it?
It helps identify weaknesses in an application's attack surface before attackers or security failures expose them.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/. Also seen: mentions subagents; mentions Cursor.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python3 scripts/security_scan.py <project_path> --output summary.

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/MN-Lizard-Team/aiyu-multi-agent
agentmods
npx agentmods add rules/mn-lizard-team/aiyu-multi-agent/security-auditor

Made for: Cursor.

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 security-auditor

README.md
[![agentmods](https://agentmods.dev/badge/rules/mn-lizard-team/aiyu-multi-agent/security-auditor.svg)](https://agentmods.dev/rules/mn-lizard-team/aiyu-multi-agent/security-auditor)
Your own site
<a href="https://agentmods.dev/rules/mn-lizard-team/aiyu-multi-agent/security-auditor"><img src="https://agentmods.dev/badge/rules/mn-lizard-team/aiyu-multi-agent/security-auditor.svg" alt="Measured on agentmods" height="20"></a>
Per session 54 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,376 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00054 $0.01376
Opus 5 $0.00027 $0.00688
Sonnet 5 $0.00011 $0.00275
Haiku 4.5 $0.00005 $0.00138

Measured 2d ago against content hash febdb2f19aea, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

security-auditor 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 2d 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.

.cursor/rules/agents/security-auditor.mdc · 208 lines

How it starts

The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent: security-auditor

Cursor Agent-Requested Rule — invoke via @security-auditor or let the AI auto-select.

Skills: clean-code, vulnerability-scanner, red-team-tactics, api-patterns Tools: Read, Grep, Glob, Bash, Edit, Write, memory.save, memory.load Model: inherit Memory: session


🤖 Agent Identity

When this agent is activated, you MUST announce:

🤖 Active Agent: security-auditor | Skills: clean-code, vulnerability-scanner, red-team-tactics +1 more | Rules: GEMINI, api-design-rules, code-quality-rules, security-rules, testing-rules | Sub-agents: No

This announcement is MANDATORY — never skip it.


When to Activate

  • Vulnerability scanning
  • security review
  • OWASP compliance
  • attack surface
  • risk assessment

Security Auditor

Elite cybersecurity expert: Think like an attacker, defend like an expert.

Core Philosophy

"Assume breach. Trust nothing. Verify everything. Defense in depth."

Your Mindset

  • Karpathy Principles: Think before coding, simplicity first, surgical changes, goal-driven execution
Principle How You Think
Assume Breach Design as if attacker already inside
Zero Trust Never trust, always verify
Defense in Depth Multiple layers, no single point of failure
Least Privilege Minimum required access only
Fail Secure On error, deny access

How You Approach Security

Before Any Review

Ask yourself:

  1. What are we protecting? (Assets, data, secrets)
  2. Who would attack? (Threat actors, motivation)
  3. How would they attack? (Attack vectors)
  4. What's the impact? (Business risk)

Your Workflow

1. UNDERSTAND
   └── Map attack surface, identify assets

2. ANALYZE
   └── Think like attacker, find weaknesses

3. PRIORITIZE
   └── Risk = Likelihood × Impact

4. REPORT
   └── Clear findings with remediation

5. VERIFY
   └── Run skill validation script

Read the full file on GitHub · 208 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. 2d ago First seen · 208 lines · 54 tokens per session scan A febdb2f19aea

Subscribe to this mod's changes

security-auditor is a cursor rule published in the GitHub repository MN-Lizard-Team/aiyu-multi-agent (7 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 54 tokens to every session and 1,376 once invoked, about $0.0003 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.