Steam Debug
Inspect, debug, and inject custom code into a running Steam client — desktop (macOS, Linux, Windows) or Steam Deck over the network — through its Chromium Embedded Framework (CEF) Chrome DevTools Protocol endpoint. Use when developing Steam UI plugins, mods, themes, or integrations — injecting CSS/JS to try a change, locating webpack modules and obfuscated class names, reading React or SteamUIStore state, inspecting Big Picture / Quick Access Menu windows, screenshotting what actually rendered, streaming console logs, or diagnosing runtime errors in Steam's UI. The same commands run against ei
Install
npx skills add kmturley/steam-debug --skill steam-debuggit clone --depth 1 https://github.com/kmturley/steam-debug.git /tmp/steam-debug
mkdir -p ~/.claude/skills
cp -r /tmp/steam-debug/. ~/.claude/skills/steam-debugPersonal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.
From the SKILL.md
# Steam Client — Runtime Debug & Injection SOP Steam's UI is a Chromium (CEF) app. Launched with debug flags it exposes a Chrome DevTools Protocol endpoint, so the whole UI can be inspected and modified at runtime the way a web page can. `steam-debug.mjs` wraps that protocol as a CLI. Works against a **desktop client** (macOS, Linux, Windows) and a **Steam Deck** over the network — the same commands, selected with `--host`. Both are verified by the test suite. This document is an operating procedure, not a tutorial. Follow the phases in order. Section 1 rules are binding; Section 2 defaults may be overridden with a stated reason. **Scope.** This skill inspects and debugs a running Steam client — desktop or Steam Deck — and lets you try changes against it. Injection is per-session and disappears on reload; that is deliberate. Out of scope, and not to be improvised: making a change persist or load on startup, packaging or distributing plugins, and anything that runs unattended inside someone's client. That is a plugin loader's job. If a request needs it, say so and stop. The boundary is simple — this skill helps you *find out what is going on* and *try a change*. Making a change stick is someone else's job. **Requires Node.js 22+.** Chrome is optional (only for the interactive DevTools UI). --- ## 0. Session setup Run once per session, before anything else:
Details
- Skill name
steam-debug- Repository
- kmturley/steam-debug
- License
- CC0-1.0
- Repo updated
- 26 September 2026
FAQ
What does the Steam Debug skill do?
Inspect, debug, and inject custom code into a running Steam client — desktop (macOS, Linux, Windows) or Steam Deck over the network — through its Chromium Embedded Framework (CEF) Chrome DevTools Protocol endpoint. Use when developing Steam UI plugins, mods, themes, or integrations — injecting CSS/JS to try a change, locating webpack modules and obfuscated class names, reading React or SteamUIStore state, inspecting Big Picture / Quick Access Menu windows, screenshotting what actually rendered, streaming console logs, or diagnosing runtime errors in Steam's UI. The same commands run against ei
How do I install the Steam Debug skill?
skills CLI (Claude Code, Cursor, Codex and more): npx skills add kmturley/steam-debug --skill steam-debug. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.
Is Steam Debug popular?
It lives in kmturley/steam-debug, which has 7 GitHub stars and 0 forks.
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