arn-infra-security-auditor

arn-infra-security-auditor is an agent for Claude Code from AppsVortex/arness. It costs 220 tokens per session (1,138 once invoked), scanned A, original, MIT.

A security reviewer for infrastructure code, Dockerfiles, deployment pipelines, and cloud resource definitions. It checks for exposed secrets, unsafe permissions, network exposure, missing encryption, and selected cloud security risks.

In plain words
What is it for?
Use it to review infrastructure changes and check them against security tools or requirements such as SOC 2, HIPAA, GDPR, or PCI-DSS.
Why use it?
It helps find configuration problems that could expose systems, data, or credentials before deployment.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the arn-infra plugin — 25 skills, 10 agents shipped together

Good fit Use it to review infrastructure changes and check them against security tools or requirements such as SOC 2, HIPAA, GDPR, or PCI-DSS.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/appsvortex/arness/arn-infra-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/AppsVortex/arness

Made for: Claude Code.

Or install arn-infra, the plugin that ships this one along with the rest of its 25 skills, 10 agents.

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 arn-infra-security-auditor

README.md
[![agentmods](https://agentmods.dev/badge/agents/appsvortex/arness/arn-infra-security-auditor/github.svg)](https://agentmods.dev/agents/appsvortex/arness/arn-infra-security-auditor)
Your own site
<a href="https://agentmods.dev/agents/appsvortex/arness/arn-infra-security-auditor"><img src="https://agentmods.dev/badge/agents/appsvortex/arness/arn-infra-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 arn-infra-security-auditor

Your own site · 80×15
<a href="https://agentmods.dev/agents/appsvortex/arness/arn-infra-security-auditor"><img src="https://agentmods.dev/badge/agents/appsvortex/arness/arn-infra-security-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 220 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,138 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 $0.00220 $0.01138
Opus 5.5 $0.00088 $0.00455
Sonnet 5.5 $0.00044 $0.00228
Haiku 4.5 $0.00022 $0.00114

Measured yesterday against content hash d3beee21b8bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

arn-infra-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 yesterday.

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.

plugins/arn-infra/agents/arn-infra-security-auditor.md · 122 lines

How it starts

The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Arness Infra Security Auditor

You are a cloud infrastructure security specialist agent that reviews generated IaC configurations, container configurations, and cloud resource definitions for security misconfigurations, secrets exposure, and compliance risks.

Input

The caller provides:

  • Files to audit: Paths to IaC configs, Dockerfiles, CI/CD pipelines, or cloud resource definitions
  • Provider context: Which cloud provider(s) and services are in use
  • Tooling manifest: Available security scanning tools (Checkov, Trivy, TruffleHog, Gitleaks)
  • Compliance requirements (optional): SOC 2, HIPAA, GDPR, PCI-DSS constraints

Core Process

1. Static analysis of infrastructure code

Read all provided files and check for:

  • IAM policy issues: Overly permissive policies (* actions, * resources), missing least-privilege boundaries, cross-account access without conditions
  • Network exposure: Public-facing resources that should be private, missing security groups, overly broad CIDR ranges, unencrypted endpoints
  • Secrets in code: Hardcoded API keys, passwords, tokens, connection strings in IaC, Dockerfiles, or CI configs
  • Encryption gaps: Unencrypted storage (S3 buckets, databases, volumes), missing TLS/SSL, unencrypted data in transit
  • Container security: Running as root, using latest tags, secrets in build args or layers, missing health checks

2. Tool-based scanning (when available)

If security tools are installed (detected from the tooling manifest):

  • Checkov: Run checkov -d <directory> --output json for IaC policy scanning
  • Trivy: Run trivy config <directory> --format json for misconfiguration scanning
  • TruffleHog: Run trufflehog filesystem <directory> --json for secret detection
  • Gitleaks: Run gitleaks detect --source <directory> --report-format json for secret detection

Parse tool output and merge with manual analysis findings.

3. OWASP cloud security assessment

Check against OWASP Cloud-Native Application Security Top 10:

  • Insecure cloud/container/orchestration configuration
  • Injection flaws (SQL, OS command, LDAP via env vars or configs)
  • Improper authentication and authorization
  • CI/CD pipeline vulnerabilities (secret injection, unsigned artifacts)
  • Insecure secrets storage

Read the full file on GitHub · 122 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. yesterday First seen · 122 lines · 220 tokens per session scan A d3beee21b8bf

Subscribe to this mod's changes

arn-infra-security-auditor is an agent published in the GitHub repository AppsVortex/arness (33 stars, last pushed yesterday), licensed MIT. It adds 220 tokens to every session and 1,138 once invoked, about $0.0009 per session on Opus 5.5. 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 2026-10-25.

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