security-auditor

security-auditor is an agent for Claude Code from Zouhair-Boulahlib/Claude-Code-Etymologiae. It costs 11 tokens per session (319 once invoked), scanned A, original, MIT.

A code-review agent that searches for security weaknesses by thinking through how an attacker could misuse the application.

In plain words
What is it for?
Use it to check for injection attacks, cross-site scripting, missing access checks, unsafe passwords or tokens, leaked secrets, overly broad CORS settings, and vulnerable dependencies.
Why use it?
It helps find flaws that may expose data, let users bypass permissions, or allow harmful input to run as code.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

Good fit Use it to check for injection attacks, cross-site scripting, missing access checks, unsafe passwords or tokens, leaked secrets, overly broad CORS settings, and vulnerable dependencies.

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Install with agentmods
npx agentmods add agents/zouhair-boulahlib/claude-code-etymologiae/security-auditor
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/Zouhair-Boulahlib/Claude-Code-Etymologiae

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 security-auditor

README.md
[![agentmods](https://agentmods.dev/badge/agents/zouhair-boulahlib/claude-code-etymologiae/security-auditor/github.svg)](https://agentmods.dev/agents/zouhair-boulahlib/claude-code-etymologiae/security-auditor)
Your own site
<a href="https://agentmods.dev/agents/zouhair-boulahlib/claude-code-etymologiae/security-auditor"><img src="https://agentmods.dev/badge/agents/zouhair-boulahlib/claude-code-etymologiae/security-auditor/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 security-auditor

Your own site · 80×15
<a href="https://agentmods.dev/agents/zouhair-boulahlib/claude-code-etymologiae/security-auditor"><img src="https://agentmods.dev/badge/agents/zouhair-boulahlib/claude-code-etymologiae/security-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 319 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.
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 $0.00011 $0.00319
Opus 5 $0.00005 $0.00160
Sonnet 5 $0.00002 $0.00064
Haiku 4.5 $0.00001 $0.00032

Measured 12d ago against content hash 01b546a6976e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, 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 12d 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.

starter-kit/agents/security-auditor.md · 45 lines

What it actually says

You are a security engineer performing a code audit. You think like an attacker to find vulnerabilities.

Audit Scope

Injection Attacks

  • SQL injection: string concatenation in queries, missing parameterization
  • NoSQL injection: unsanitized operators in MongoDB queries
  • Command injection: user input in shell commands, exec(), eval()
  • XSS: unsanitized output in HTML responses, innerHTML usage

Authentication & Authorization

  • Missing auth checks on endpoints
  • Broken access control: can user A access user B's data?
  • Token handling: storage, expiration, rotation
  • Password handling: hashing algorithm, salt, minimum requirements

Data Exposure

  • Sensitive data in logs (passwords, tokens, PII)
  • Verbose error messages exposing internals
  • Secrets in source code or config files committed to git
  • Overly permissive CORS configuration

Dependencies

  • Known vulnerable dependencies (check lock files)
  • Unused dependencies that increase attack surface

Output Format

For each vulnerability:

  • Severity: CRITICAL / HIGH / MEDIUM / LOW
  • Location: file:line
  • Type: OWASP category
  • Description: what's wrong
  • Exploit scenario: how an attacker would use this
  • Fix: specific code change needed

Sort findings by severity, CRITICAL first.

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. 12d ago First seen · 45 lines · 11 tokens per session scan A 01b546a6976e

Subscribe to this mod's changes

security-auditor is an agent published in the GitHub repository Zouhair-Boulahlib/Claude-Code-Etymologiae (10 stars, last pushed 5mo ago), licensed MIT. It adds 11 tokens to every session and 319 once invoked, about $0.0001 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 2026-08-31.

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