audit-skills

audit-skills is a skill for Claude Code, Codex from beel-collab/presets.dev. It costs 51 tokens per session (1,541 once invoked), scanned C, a copy of audit-skills, MIT.

A security-auditing skill that examines AI skills and bundles for suspicious code, data leaks, stability risks, and hidden payloads.

In plain words
What is it for?
Use it to statically inspect skills and bundles across desktop and mobile platforms for security risks.
Why use it?
It helps identify potentially malicious or unsafe behavior before an add-on is used.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to statically inspect skills and bundles across desktop and mobile platforms for security risks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/beel-collab/presets.dev/audit-skills
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 beel-collab/presets.dev --skill audit-skills
Clone the repo
git clone --depth 1 https://github.com/beel-collab/presets.dev

Made for: Claude Code, Codex.

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 audit-skills

README.md
[![agentmods](https://agentmods.dev/badge/skills/beel-collab/presets.dev/audit-skills.svg)](https://agentmods.dev/skills/beel-collab/presets.dev/audit-skills)
Your own site
<a href="https://agentmods.dev/skills/beel-collab/presets.dev/audit-skills"><img src="https://agentmods.dev/badge/skills/beel-collab/presets.dev/audit-skills.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,541 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 3 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 92% 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 5.1 $0.00051 $0.01541
Opus 5 $0.00026 $0.00771
Sonnet 5 $0.00010 $0.00308
Haiku 4.5 $0.00005 $0.00154

Measured 4d ago against content hash a86522552276, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade C, and why

audit-skills scanned grade C with 3 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.

Downloads and executes remote codemediumSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

- **Tubes**: `curl ... | bash`, `iwr ... | iex`.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Recursive force deletemediumDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

- **Linux/Unix**: `apt-get purge`, `yum remove`, `rm -rf /usr/bin/...`.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

<!-- security-allowlist: curl-pipe-bash -->
Origin

This is a copy

92% identical to audit-skills — 20 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.

claude/skills/security/audit-skills/SKILL.md · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Audit Skills (Premium Universal Security)

Overview

Expert security auditor for AI Skills and Bundles. Performs non-intrusive static analysis to identify malicious patterns, data leaks, system stability risks, and obfuscated payloads across Windows, macOS, Linux/Unix, and Mobile (Android/iOS). 2-4 sentences is perfect.

When to Use This Skill

  • Use when you need to audit AI skills and bundles for security vulnerabilities
  • Use when working with cross-platform security analysis
  • Use when the user asks about verifying skill legitimacy or performing security reviews
  • Use when scanning for mobile threats in AI skills

How It Works

Step 1: Static Analysis

Performs non-intrusive static analysis to identify malicious patterns, data leaks, system stability risks, and obfuscated payloads.

Step 2: Platform-Specific Threat Detection

Analyzes code for platform-specific security issues across Windows, macOS, Linux/Unix, and Mobile (Android/iOS).

1. Privilege, Ownership & Metadata Manipulation
  • Elevated Access: sudo, chown, chmod, TakeOwnership, icacls, Set-ExecutionPolicy.
  • Metadata Tampering: touch -t, setfile (macOS), attrib (Windows), Set-ItemProperty, chflags.
  • Risk: Unauthorized access, masking activity, or making files immutable.
2. File/Folder Locking & Resource Denial
  • Patterns: chmod 000, chattr +i (immutable), attrib +r +s +h, Deny ACEs in icacls.
  • Global Actions: Locking or hiding folders in %USERPROFILE%, /Users/, or /etc/.
  • Risk: Denial of service or data locking.
3. Script Execution & Batch Invocation
  • Legacy/Batch Windows: .bat, .cmd, cmd.exe /c, vbs, cscript, wscript.
  • Unix Shell: .sh, .bash, .zsh, chmod +x followed by execution.
  • PowerShell: .ps1, powershell -ExecutionPolicy Bypass -File ....
  • Hidden Flags: -WindowStyle Hidden, -w hidden, -noprofile.
4. Dangerous Install/Uninstall & System Changes
  • Windows: msiexec /qn, choco uninstall, reg delete.
  • Linux/Unix: apt-get purge, yum remove, rm -rf /usr/bin/....
  • macOS: brew uninstall, deleting from /Applications.
  • Risk: Removing security software or creating unmonitored installation paths.

Read the full file on GitHub · 133 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 · 133 lines · 51 tokens per session scan C a86522552276

Subscribe to this mod's changes

audit-skills is a skill published in the GitHub repository beel-collab/presets.dev (2 stars, last pushed 4mo ago), licensed MIT. It adds 51 tokens to every session and 1,541 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 3 findings (downloads and executes remote code, recursive force delete, makes network calls). It is 92% identical to audit-skills, differing in 20 lines, and is treated as a copy.

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