steam-publish

steam-publish is a skill for Claude Code from gamedev-skills/awesome-gamedev-agent-skills. It costs 71 tokens per session (2,222 once invoked), scanned A, original, Apache-2.0.

A release guide for putting a finished game on Steam, the digital PC game store and platform. It covers both the store page and uploading the playable build through Steamworks and SteamPipe.

In plain words
What is it for?
Use it to configure depots and packages, upload builds with steamcmd, manage beta branches, and set a build live on Steam.
Why use it?
It organizes the account setup, build upload, branch testing, and release checks needed to publish a game. This reduces the risk of a store page or uploaded build being incomplete.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is // AppID 1000 with one depot (1001): upload everything under ../content recursively..

Part of the workflows plugin — 4 skills shipped together , and of gamedev

Good fit Use it to configure depots and packages, upload builds with steamcmd, manage beta branches, and set a build live on Steam.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skills
agentmods
npx agentmods add skills/gamedev-skills/awesome-gamedev-agent-skills/steam-publish

Made for: Claude Code.

Or install workflows, the plugin that ships this one along with the rest of its 4 skills.

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 steam-publish

README.md
[![agentmods](https://agentmods.dev/badge/skills/gamedev-skills/awesome-gamedev-agent-skills/steam-publish/github.svg)](https://agentmods.dev/skills/gamedev-skills/awesome-gamedev-agent-skills/steam-publish)
Your own site
<a href="https://agentmods.dev/skills/gamedev-skills/awesome-gamedev-agent-skills/steam-publish"><img src="https://agentmods.dev/badge/skills/gamedev-skills/awesome-gamedev-agent-skills/steam-publish/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 steam-publish

Your own site · 80×15
<a href="https://agentmods.dev/skills/gamedev-skills/awesome-gamedev-agent-skills/steam-publish"><img src="https://agentmods.dev/badge/skills/gamedev-skills/awesome-gamedev-agent-skills/steam-publish.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,222 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
  • Socket pass 8 Aug 2026
  • Snyk fail 8 Aug 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to high

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 →

  • high Rogue Agent · line 64
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
  • high Rogue Agent · line 131
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
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 $0.00071 $0.02222
Opus 5 $0.00036 $0.01111
Sonnet 5 $0.00014 $0.00444
Haiku 4.5 $0.00007 $0.00222

Measured 9d ago against content hash d0d1237a5f79, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

steam-publish 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 9d 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.

skills/workflows/steam-publish/SKILL.md · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Steam Publish (Steamworks + SteamPipe)

Take a finished build to a live Steam store page. Two tracks run in parallel and both must be approved before release: the store page (presence) and the build (SteamPipe upload + the release checklists). This skill is the operational checklist; deep build-script, CI/CD, and troubleshooting detail lives in references/steampipe-build-scripts.md.

When to use

  • Use when setting up a Steam app, building/editing the store page, configuring depots and packages, uploading a build via SteamPipe/steamcmd, managing beta branches, or releasing and updating a Steam title.
  • Triggers: steam_appid.txt, the Steamworks SDK tools/ContentBuilder, app_build_*.vdf, steamcmd, "publish on Steam", "depot", "set build live".

When not to use: publishing on itch.io (use itch-publish); writing the Steamworks API in-game (achievements/cloud/overlay live in engine SDK integrations, not here); store/financial advice (pricing strategy, tax) — direct the user to Steamworks docs and their own counsel.

Prerequisites (do these once, in order)

  1. Partner account + Steam Direct fee. Each new app requires the Steam Direct recoupable fee (USD $100 per app at time of writing). You receive an App ID — find it on your Steamworks homepage. Treat the App ID as the key to everything below.
  2. A dedicated build account with least privilege. Builds require a Steam account in your partner group with Edit App Metadata and Publish App Changes To Steam. Create a separate build account with only those permissions (not your admin login). Releasing the app additionally needs Manage pricing and discounts.
  3. Download the Steamworks SDK on the upload machine. The SteamPipe tools are under tools/ContentBuilder/.

Security note: never commit account passwords or the config.vdf login token to the repo. See the CI/CD section in the reference for the supported token workflow.

Core workflow

Read the full file on GitHub · 179 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. 9d ago First seen · 179 lines · 71 tokens per session scan A d0d1237a5f79

Subscribe to this mod's changes

steam-publish is a skill published in the GitHub repository gamedev-skills/awesome-gamedev-agent-skills (952 stars, last pushed 2d ago), licensed Apache-2.0. It adds 71 tokens to every session and 2,222 once invoked, about $0.0004 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 2026-09-03.