security-audit

security-audit is a skill for Claude Code from IdoCohen560/claude-unity-game-studio. It costs 49 tokens per session (1,968 once invoked), scanned A, a copy of security-audit, MIT.

A security review of a game's save files, inputs, network features, and exposed data to find ways the game could be tampered with or attacked.

In plain words
What is it for?
It helps teams find and prioritise security issues before release, multiplayer launch, or after adding disk or network features.
Why use it?
Security gaps can allow cheating, altered saves, stolen data, or attacks against online features, including problems in single-player games.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: agent in frontmatter.

Good fit It helps teams find and prioritise security issues before release, multiplayer launch, or after adding disk or network features.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/idocohen560/claude-unity-game-studio/security-audit
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 IdoCohen560/claude-unity-game-studio --skill security-audit
Clone the repo
git clone --depth 1 https://github.com/IdoCohen560/claude-unity-game-studio

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-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/idocohen560/claude-unity-game-studio/security-audit/github.svg)](https://agentmods.dev/skills/idocohen560/claude-unity-game-studio/security-audit)
Your own site
<a href="https://agentmods.dev/skills/idocohen560/claude-unity-game-studio/security-audit"><img src="https://agentmods.dev/badge/skills/idocohen560/claude-unity-game-studio/security-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.

agentmods 80×15 button for security-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/idocohen560/claude-unity-game-studio/security-audit"><img src="https://agentmods.dev/badge/skills/idocohen560/claude-unity-game-studio/security-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,968 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 97% 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 $0.00049 $0.01968
Opus 5.5 $0.00020 $0.00787
Sonnet 5.5 $0.00010 $0.00394
Haiku 4.5 $0.00005 $0.00197

Measured 1mo ago against content hash d46a7f943b1a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-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.

Origin

This is a copy

97% identical to security-audit — 245 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.

examples/my-first-game/.claude/skills/security-audit/SKILL.md · 245 lines

How it starts

The opening of the file, as written. The whole thing — 245 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Security Audit

Security is not optional for any shipped game. Even single-player games have save tampering vectors. Multiplayer games have cheat surfaces, data exposure risks, and denial-of-service potential. This skill systematically audits the codebase for the most common game security failures and produces a prioritised remediation plan.

Run this skill:

  • Before any public release (required for the Polish → Release gate)
  • Before enabling any online/multiplayer feature
  • After implementing any system that reads from disk or network
  • When a security-related bug is reported

Output: production/security/security-audit-[date].md


Phase 1: Parse Arguments and Scope

Modes:

  • full — all categories (recommended before release)
  • network — network/multiplayer only
  • save — save file and serialization only
  • input — input validation and injection only
  • quick — high-severity checks only (fastest, for iterative use)
  • No argument — run full

Read .claude/docs/technical-preferences.md to determine:

  • Engine and language (affects which patterns to search for)
  • Target platforms (affects which attack surfaces apply)
  • Whether multiplayer/networking is in scope

Phase 2: Spawn Security Engineer

Spawn security-engineer via Task. Pass:

  • The audit scope/mode
  • Engine and language from technical preferences
  • A manifest of all source directories: src/, assets/data/, any config files

The security-engineer runs the audit across 6 categories (see Phase 3). Collect their full findings before proceeding.


Phase 3: Audit Categories

The security-engineer evaluates each of the following. Skip categories not applicable to the project scope.

Category 1: Save File and Serialization Security

  • Are save files validated before loading? (no blind deserialization)
  • Are save file paths constructed from user input? (path traversal risk)
  • Are save files checksummed or signed? (tamper detection)
  • Does the game trust numeric values from save files without bounds checking?
  • Are there any eval() or dynamic code execution calls near save loading?

Read the full file on GitHub · 245 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. 1mo ago First seen · 245 lines · 49 tokens per session scan A d46a7f943b1a

Subscribe to this mod's changes

security-audit is a skill published in the GitHub repository IdoCohen560/claude-unity-game-studio (23 stars, last pushed 3mo ago), licensed MIT. It adds 49 tokens to every session and 1,968 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to security-audit, differing in 245 lines, and is treated as a copy.