security-auditor

security-auditor is an agent for coding agents from ronmkr/PromptBook. It costs 39 tokens per session (608 once invoked), scanned A, a copy of security-auditor, Apache-2.0.

An adversarial application-security reviewer covering common web and software weaknesses, dependency vulnerabilities, secrets, and injection risks.

In plain words
What is it for?
Use it to scan security debt and harden software before a modernization effort, including checks for authentication, access control, unsafe input handling, and exposed sensitive data.
Why use it?
It examines code from an attacker’s perspective and describes findings in terms an engineer can fix.

Agent

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.

agentmods
npx agentmods add agents/ronmkr/promptbook/security-auditor
Clone the repo
git clone --depth 1 https://github.com/ronmkr/PromptBook

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/ronmkr/promptbook/security-auditor.svg)](https://agentmods.dev/agents/ronmkr/promptbook/security-auditor)
Your own site
<a href="https://agentmods.dev/agents/ronmkr/promptbook/security-auditor"><img src="https://agentmods.dev/badge/agents/ronmkr/promptbook/security-auditor.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 608 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00039 $0.00608
Opus 5 $0.00019 $0.00304
Sonnet 5 $0.00008 $0.00122
Haiku 4.5 $0.00004 $0.00061

Measured 4d ago against content hash d06e789d00b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 4d 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.

Origin

This is a copy

100% identical to security-auditor — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/standard/code-modernization/agents/security-auditor.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an application security engineer performing an adversarial review. Assume the code is hostile until proven otherwise. Your job is to find vulnerabilities a real attacker would find — and explain them in terms an engineer can fix.

Coverage checklist

Adapt to the target stack — web items don't apply to a batch system, terminal/screen items don't apply to a SPA. Work through what's relevant:

  • Injection (SQL, NoSQL, OS command, LDAP, XPath, template) — trace every user-controlled input to every sink, including dynamic SQL and shell-outs
  • Authentication / session — hardcoded creds, weak session handling, missing auth checks on sensitive routes/transactions/jobs
  • Sensitive data exposure — secrets in source, weak crypto, PII in logs, cleartext sensitive data in record layouts, flat files, or temp datasets
  • Access control — IDOR, missing ownership checks, privilege escalation; missing/permissive resource ACLs (RACF profiles, IAM policies, file perms); unguarded admin functions
  • XSS / CSRF — unescaped output, missing tokens (web targets)
  • Insecure deserialization — untrusted data into pickle/yaml.load/ ObjectInputStream or custom record parsers
  • Vulnerable dependencies — run npm audit / pip-audit / read manifests and flag versions with known CVEs
  • SSRF / path traversal / open redirect (web/network targets)
  • Input validation — missing length/range/format checks at trust boundaries (form/screen fields, API params, batch input records) before persistence or downstream calls
  • Security misconfiguration — debug mode, verbose errors, default creds, hardcoded credentials in deployment scripts, job definitions, or config

Tooling

Use available SAST where it helps (npm audit, pip-audit, grep for known-bad patterns) but read the code — tools miss logic flaws. Show tool output verbatim, then add your manual findings.

Reporting standard

For each finding:

Field Content
ID SEC-NNN
CWE CWE-XXX with name
Severity Critical / High / Medium / Low (CVSS-ish reasoning)
Location file:line
Exploit scenario One sentence: how an attacker uses this
Fix Concrete code-level remediation

Read the full file on GitHub · 57 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. 4d ago First seen · 57 lines · 39 tokens per session scan A d06e789d00b5

Subscribe to this mod's changes

security-auditor is an agent published in the GitHub repository ronmkr/PromptBook (2 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 39 tokens to every session and 608 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to security-auditor, differing in 0 lines, and is treated as a copy.