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
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/Donchitos/Claude-Code-Game-Studiosnpx agentmods add skills/donchitos/claude-code-game-studios/design-reviewWrote 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/design-review)<a href="https://agentmods.dev/skills/donchitos/claude-code-game-studios/design-review"><img src="https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/design-review/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/design-review"><img src="https://agentmods.dev/badge/skills/donchitos/claude-code-game-studios/design-review.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 | $0.00025 | $0.06683 |
| Opus 5.5 | $0.00010 | $0.02673 |
| Sonnet 5.5 | $0.00005 | $0.01337 |
| Haiku 4.5 | $0.00003 | $0.00668 |
Grade A, and why
design-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
4 near-identical copies found in the catalogue:
- design-review — 97% identical, 272 lines differ
- design-review — 89% identical, 290 lines differ
- design-review — 86% identical, 303 lines differ
- design-review — 83% identical, 302 lines differ
How it starts
The opening of the file, as written. The whole thing — 470 lines — stays where its author put it; the contents beside it link to each section on GitHub.
!bash "${CLAUDE_SKILL_DIR}/../../hooks/yaml-helper.sh" resolve_config --keys review_mode,automation,workflow,system_overrides
Resolved above — use as-is; --review overrides review_mode. --depth is
the pre-1.1 name for the same flag: treat --depth <mode> exactly as
--review <mode>, and say once that it was renamed. Given both, --review
wins and --depth is ignored — say so. No block → defaults in
.claude/docs/config-resolution.md.
Design Review
Phase 0: Parse Arguments
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).
workflow for the GDD under review — use the system_overrides row for <system> if the block lists one, else the project value. Validation scope follows the tier:
full— all 8 sections validated; any missing section blocks approval.standard— the 5 required sections (Overview, Detailed Rules, Edge Cases, Dependencies, Acceptance Criteria) block if missing; Formulas blocks only when the system defines numeric rules (rates, curves, thresholds, costs — the category is a hint, not the test); Player Fantasy and Tuning Knobs are advisory (warn, never block) unlessworkflow_overridesrequire them.minimal— no GDD is expected; if one exists, validate the 5 standard sections advisorily.
Resolved mode controls how thorough this review is:
full: Complete review — all phases + specialist agent delegation (Phase 3b)lean: All phases, no specialist agents — faster, single-session analysissolo: Phases 1-4 only, no delegation, no Phase 5 next-step prompt — use when called from within another skill
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 · +42 lines 8ed70a1d109f
- 15d ago Changed · +2 lines 259f532b0887
- 24d ago Changed · +10 lines d21b65ae0895
- 29d ago Changed f8b7f00c9f81
- 1mo ago Changed · +147 lines · -9 tokens per session f6d3098825a7
- 1mo ago First seen · 269 lines · 34 tokens per session scan A 3f9119c2ecc3
design-review is a skill published in the GitHub repository Donchitos/Claude-Code-Game-Studios (27,298 stars, last pushed 5d ago), licensed MIT. It adds 25 tokens to every session and 6,683 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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