An on-demand review of a codebase for security weaknesses, code quality problems, exposed secrets, unsafe dependencies, and compliance issues. It applies to several common languages and project types, including monorepos and microservices.

Use it for security checks, vulnerability scans, pre-release reviews, code quality checks, compliance checks, and third-party license reviews.

It helps find problems before deployment, such as injection attacks, broken access control, leaked secrets, and vulnerable dependencies.

audit — Skill for Claude Code by MadAppGang/claude-code

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.

Any agent

npx skills add MadAppGang/claude-code --skill audit

Clone the repo

git clone --depth 1 https://github.com/MadAppGang/claude-code

Made for: Claude Code.

Or install dev, the plugin that ships this one along with the rest of its 47 skills, 12 commands, 14 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/madappgang/claude-code/audit/github.svg)](https://agentmods.dev/skills/madappgang/claude-code/audit)

Your own site

<a href="https://agentmods.dev/skills/madappgang/claude-code/audit"><img src="https://agentmods.dev/badge/skills/madappgang/claude-code/audit/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/skills/madappgang/claude-code/audit"><img src="https://agentmods.dev/badge/skills/madappgang/claude-code/audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,231 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.

Model	Per session	Once invoked
Fable 5.1	$0.00053	$0.03231
Opus 5.5	$0.00021	$0.01292
Sonnet 5.5	$0.00011	$0.00646
Haiku 4.5	$0.00005	$0.00323

Measured 1mo ago against content hash 18c0de339b98, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

audit 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 1mo 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.

plugins/dev/skills/audit/SKILL.md · 584 lines

How it starts

The opening of the file, as written. The whole thing — 584 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Audit Skill

Overview

The audit skill provides comprehensive on-demand security and code quality audits for your codebase. It identifies vulnerabilities, security issues, code smells, outdated dependencies, exposed secrets, and compliance problems across all supported technology stacks.

When to Use:

Security audits and vulnerability scans
Pre-deployment security checks
Compliance verification (GDPR, HIPAA, SOC2)
Code quality assessment
Dependency vulnerability scanning
Secret exposure detection
Third-party license compliance

Technology Coverage:

React/TypeScript/JavaScript projects
Go applications
Rust projects
Python codebases
Full-stack applications
Monorepos and microservices

Audit Categories

1. Security Vulnerabilities (OWASP Top 10)

What Gets Checked:

SQL injection vulnerabilities
Cross-site scripting (XSS)
Authentication and session management flaws
Security misconfigurations
Sensitive data exposure
XML external entities (XXE)
Broken access control
Cross-site request forgery (CSRF)
Using components with known vulnerabilities
Insufficient logging and monitoring

Detection Methods:

Static code analysis
Pattern matching for common vulnerabilities
Framework-specific security checks
API endpoint security validation
Input validation analysis

2. Dependency Vulnerabilities

What Gets Checked:

Outdated packages with known CVEs
Unmaintained dependencies
License compatibility issues
Transitive dependency risks
Version conflicts

Package Managers Supported:

npm/yarn/pnpm (JavaScript/TypeScript)
go.mod (Go)
Cargo.toml (Rust)
requirements.txt/pyproject.toml (Python)
Gemfile (Ruby)

Tools Used:

npm audit / yarn audit / pnpm audit
go mod verify + vulnerability databases
cargo audit
pip-audit / safety

3. Exposed Secrets and Credentials

What Gets Detected:

Hardcoded API keys and tokens
Database credentials
Private keys and certificates
OAuth tokens and secrets
AWS/GCP/Azure credentials
JWT secrets
Encryption keys

Read the full file on GitHub · 584 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.

1mo ago First seen · 584 lines · 53 tokens per session scan A 18c0de339b98

Subscribe to this mod's changes

audit is a skill published in the GitHub repository MadAppGang/claude-code (286 stars, last pushed 7mo ago), licensed MIT. It adds 53 tokens to every session and 3,231 once invoked, about $0.0002 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 2026-09-03.

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