security-audit

security-audit is a skill for Claude Code from Donchitos/Claude-Code-Game-Studios. It costs 29 tokens per session (5,306 once invoked), scanned A, original, MIT.

A security review for a game that looks for ways players or attackers could tamper with saves, cheat, exploit network features, expose data, or submit unsafe input.

In plain words
What is it for?
Use it to review save files, multiplayer systems, input handling, and other common attack points, then get a prioritised fix plan.
Why use it?
It helps find security gaps before release, multiplayer launch, or after adding disk or network features.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; names the AskUserQuestion tool.

Good fit Use it to review save files, multiplayer systems, input handling, and other common attack points, then get a prioritised fix plan.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/donchitos/claude-code-game-studios/security-audit
About the project

Claude Code Game Studios is a setup that organizes Claude Code into a coordinated game-development team of specialized AI agents. It supports game projects across design, programming, art, audio, narrative, quality assurance, and production, with skills and workflows for coordinating that work.

Donchitos/Claude-Code-Game-Studios · 27,298 stars · on GitHub

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 Donchitos/Claude-Code-Game-Studios --skill security-audit
Clone the repo
git clone --depth 1 https://github.com/Donchitos/Claude-Code-Game-Studios

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/donchitos/claude-code-game-studios/security-audit/github.svg)](https://agentmods.dev/skills/donchitos/claude-code-game-studios/security-audit)
Your own site
<a href="https://agentmods.dev/skills/donchitos/claude-code-game-studios/security-audit"><img src="https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/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/donchitos/claude-code-game-studios/security-audit"><img src="https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/security-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,306 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 7
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
How audits are shown
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 $0.00029 $0.05306
Opus 5.5 $0.00012 $0.02122
Sonnet 5.5 $0.00006 $0.01061
Haiku 4.5 $0.00003 $0.00531

Measured 4d ago against content hash 91d9c01dfed0, 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 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

Copies of this mod

3 near-identical copies found in the catalogue:

.claude/skills/security-audit/SKILL.md · 440 lines

How it starts

The opening of the file, as written. The whole thing — 440 lines — stays where its author put it; the contents beside it link to each section on GitHub.

!bash "${CLAUDE_SKILL_DIR}/../../hooks/yaml-helper.sh" resolve_config --keys automation,workflow

Automation mode: Resolve modes.automation (project.local.yaml → project.yaml → default collaborative). Every AskUserQuestion call and every file write follows .claude/docs/automation-modes.md (collaborative asks always · guided major-only · autonomous logs and proceeds; automation_always_ask categories always prompt).

workflow (resolved above) decides only what Phase 7 tells you about the release gate: at standard and full it requires this report; at minimal it does not. The audit itself runs the same at every tier.

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 at workflow: standard and full)
  • 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]-[scope].md — the scope in the name keeps a same-day quick or save run from overwriting the full report the release gate reads.


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 project.yaml to determine the following, falling back to .claude/docs/technical-preferences.md for engine/language/platforms when a key is absent or empty:

  • engine.name and engine.language — load-bearing: they select the Phase 3 pattern set, and an engine with no sourced set for a category makes that category NOT ASSESSED. If engine.name is absent or empty, say so in the report and treat every grep category as NOT ASSESSED; do not fall back to the Godot lists because they are the ones written out in full
  • platform.targets (affects which attack surfaces apply)
  • platform.multiplayer and platform.online — whether multiplayer/networking is in scope. technical-preferences.md has no equivalent fields, so the legacy fallback cannot supply them.

Read the full file on GitHub · 440 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 Changed · -2 lines 91d9c01dfed0
  2. 24d ago Changed · +93 lines c7ee7cf8a2e9
  3. 29d ago Changed 780806af70ec
  4. 1mo ago Changed · +103 lines · -20 tokens per session f8c2695403a3
  5. 1mo ago First seen · 246 lines · 49 tokens per session scan A b3d04c89f184

Subscribe to this mod's changes

security-audit is a skill published in the GitHub repository Donchitos/Claude-Code-Game-Studios (27,298 stars, last pushed 5d ago), licensed MIT. It adds 29 tokens to every session and 5,306 once invoked, about $0.0001 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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