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.
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.
npx skills add Donchitos/Claude-Code-Game-Studios --skill art-biblegit clone --depth 1 https://github.com/Donchitos/Claude-Code-Game-StudiosWrote 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.
[](https://agentmods.dev/skills/donchitos/claude-code-game-studios/art-bible)<a href="https://agentmods.dev/skills/donchitos/claude-code-game-studios/art-bible"><img src="https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/art-bible/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.
<a href="https://agentmods.dev/skills/donchitos/claude-code-game-studios/art-bible"><img src="https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/art-bible.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
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.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00022 | $0.05593 |
| Opus 5.5 | $0.00009 | $0.02237 |
| Sonnet 5.5 | $0.00004 | $0.01119 |
| Haiku 4.5 | $0.00002 | $0.00559 |
Grade A, and why
art-bible scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 402 lines — stays where its author put it; the contents beside it link to each section on GitHub.
!bash "${CLAUDE_SKILL_DIR}/../../hooks/yaml-helper.sh" resolve_config --keys review_mode,automation,workflow,docs.density
Resolved above — use as-is; --review overrides review_mode. No block →
defaults in .claude/docs/config-resolution.md.
Art Bible
Phase 0: Parse Arguments and Context Check
See .claude/docs/director-gates.md for the full check pattern. Individual gate definitions live in .claude/docs/director-gates/[gate-id].md — the spawned agent reads its own gate file; do not read it in the parent session.
Every AskUserQuestion call follows .claude/docs/automation-modes.md
(collaborative asks always · guided major-only · autonomous logs and proceeds;
automation_always_ask categories always prompt).
docs.density — it controls per-section depth, where workflow
controls which sections exist. modes.rigor sets both together; set
docs.density explicitly to vary depth alone: terse (the default, via rigor: minimal) = each section a bulleted list of
constraints + references; balanced = paragraphs explaining each visual choice
(rigor: standard); thorough = full prose including style explorations, references, and
rationale per choice. Apply it to every section you author.
workflow (see .claude/docs/workflow-modes.md):
full— all 9 art bible sections required.standard— required only if visual asset stories exist in the project; sections 1–4 are the minimum when required.workflow_overrides.art_bible_strict: trueforces all 9 sections regardless of tier.minimal— not required. Can still be run voluntarily.
Read design/gdd/game-concept.md — or design/game-brief.md, the one-page brief
that replaces it at rigor: minimal. Read it by section: find the headings you need
with the Grep tool (pattern ^#, content mode) and Read those ranges with offset
and limit. If neither exists, fail with:
"No game concept found. Run
/brainstormfirst — the art bible is authored after the game concept is approved."
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.
- 4d ago Changed · +1 lines 7873271f9e19
- 15d ago Changed · +2 lines 7b0fd489ea5b
- 24d ago Changed · +48 lines 7cb412d112f4
- 29d ago Changed 7ca3835a6e7e
- 1mo ago Changed · +101 lines · -25 tokens per session b4de222c2434
- 1mo ago First seen · 250 lines · 47 tokens per session scan A 19daa484f6f6
art-bible is a skill published in the GitHub repository Donchitos/Claude-Code-Game-Studios (27,298 stars, last pushed 5d ago), licensed MIT. It adds 22 tokens to every session and 5,593 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 2026-08-30.
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