game-supply-chain-security

game-supply-chain-security is a skill for Claude Code from gmh5225/awesome-game-security. It costs 99 tokens per session (2,061 once invoked), scanned A, original, MIT.

A guide for checking the trust chain of a game build and its updates, from source code and dependencies through signing, distribution, installation, and loading mods or plugins.

In plain words
What is it for?
Use it to review build and release access, software bills of materials, artifact provenance, signing, update freshness, and mod or asset ingestion.
Why use it?
It shows where an attacker or mistake could replace code, release files, dependencies, or update channels, and what evidence can be checked at each point.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions AGENTS.md.

Good fit Use it to review build and release access, software bills of materials, artifact provenance, signing, update freshness, and mod or asset ingestion.

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Install with agentmods
npx agentmods add skills/gmh5225/awesome-game-security/game-supply-chain-security
About the project

awesome-game-security is a curated collection focused on security research for games and game software, including cheating, anti-cheat systems, debugging, and anti-debugging. It is intended for security researchers and developers studying or building game-protection tools. The catalogue entries provide skills for AI coding agents related to the repository’s security workflows.

gmh5225/awesome-game-security · 3,499 stars · on GitHub · gs.awesome.rip

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 gmh5225/awesome-game-security --skill game-supply-chain-security
Clone the repo
git clone --depth 1 https://github.com/gmh5225/awesome-game-security

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 game-supply-chain-security

README.md
[![agentmods](https://agentmods.dev/badge/skills/gmh5225/awesome-game-security/game-supply-chain-security/github.svg)](https://agentmods.dev/skills/gmh5225/awesome-game-security/game-supply-chain-security)
Your own site
<a href="https://agentmods.dev/skills/gmh5225/awesome-game-security/game-supply-chain-security"><img src="https://agentmods.dev/badge/skills/gmh5225/awesome-game-security/game-supply-chain-security/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 game-supply-chain-security

Your own site · 80×15
<a href="https://agentmods.dev/skills/gmh5225/awesome-game-security/game-supply-chain-security"><img src="https://agentmods.dev/badge/skills/gmh5225/awesome-game-security/game-supply-chain-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,061 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 $0.00099 $0.02061
Opus 5 $0.00049 $0.01030
Sonnet 5 $0.00020 $0.00412
Haiku 4.5 $0.00010 $0.00206

Measured yesterday against content hash aded43ce33f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

game-supply-chain-security 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.

.claude/skills/game-supply-chain-security/SKILL.md · 186 lines

How it starts

The opening of the file, as written. The whole thing — 186 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Game Build, Update, and Mod Supply Chains

Use this skill to review release and content trust boundaries. Route runtime object models to game-engine, platform package signing to mobile-security, and privileged driver behavior to windows-kernel.

For repository-backed choices, read the supply-chain resource guide for CI entry points, editor acquisition, hot-patch runtimes, and asset-parser dependencies.

Map Release Authority

Source and dependencies -> build -> artifact and provenance -> signing
  -> publication/channel -> delivery -> updater/install -> game or plugin load

Record who can change source, build instructions, signing policy, uploaded artifacts, live channels, and installed files. Distinguish release credentials, signing keys, build identities, and player sessions. A delivery service is one part of this chain. SteamPipe distinguishes builds, depot manifests, and live branches, and recommends dedicated, restricted build accounts. Valve SteamPipe uploads

Threat Objectives and Evidence

Objective Boundary requiring review Useful evidence
Substitute a release or dependency Producer/build identity and artifact binding Source revision, build inputs, provenance, artifact digest
Publish an unauthorized channel update Signing and publication authority Release approvals, credential scope, channel history
Keep a client on stale content or combine inconsistent metadata Freshness, version, and metadata consistency Trusted metadata versions, expiry, role and target relationships
Abuse build jobs to affect other releases Build isolation and secret boundaries Worker lifecycle, cache provenance, signing boundary
Obtain code execution through a mod/plugin Import and execution permissions Exact content version, format, validation and allowed capability
Overwrite protected files or exhaust import resources Extraction/install path and resource boundaries Staging location, destination policy, expanded-size and work budgets

Read the full file on GitHub · 186 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 186 lines · 99 tokens per session scan A aded43ce33f7

Subscribe to this mod's changes

game-supply-chain-security is a skill published in the GitHub repository gmh5225/awesome-game-security (3,499 stars, last pushed today), licensed MIT. It adds 99 tokens to every session and 2,061 once invoked, about $0.0005 per session on Opus 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 2026-09-09.

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