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 CoralGame/Claude-Code-Game-Studios --skill startgit clone --depth 1 https://github.com/CoralGame/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/coralgame/claude-code-game-studios/start)<a href="https://agentmods.dev/skills/coralgame/claude-code-game-studios/start"><img src="https://agentmods.dev/badge/skills/coralgame/claude-code-game-studios/start.svg" alt="Measured on agentmods" height="20"></a>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 | $0.01767 |
| Opus 5 | $0.00011 | $0.00883 |
| Sonnet 5 | $0.00004 | $0.00353 |
| Haiku 4.5 | $0.00002 | $0.00177 |
Grade A, and why
start 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.
This is a copy
94% identical to start — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 181 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Guided Onboarding
This skill is the entry point for new users. It does NOT assume you have a game idea, an engine preference, or any prior experience. It asks first, then routes you to the right workflow.
Workflow
1. Detect Project State (Silent)
Before asking anything, silently gather context so you can tailor your guidance. Do NOT show these results unprompted — they inform your recommendations, not the conversation opener.
Check:
- Engine configured? Read
.claude/docs/technical-preferences.md. If the Engine field contains[TO BE CONFIGURED], the engine is not set. - Game concept exists? Check for
design/gdd/game-concept.md. - Source code exists? Glob for source files in
src/(*.gd,*.cs,*.cpp,*.h,*.rs,*.py,*.js,*.ts). - Prototypes exist? Check for subdirectories in
prototypes/. - Design docs exist? Count markdown files in
design/gdd/. - Production artifacts? Check for files in
production/sprints/orproduction/milestones/.
Store these findings internally. You will use them to validate the user's self-assessment and to tailor follow-up recommendations.
2. Ask Where the User Is
This is the first thing the user sees. Present these 4 options clearly:
Welcome to Claude Code Game Studios!
Before I suggest anything, I'd like to understand where you're starting from. Where are you at with your game idea right now?
A) No idea yet — I don't have a game concept at all. I want to explore and figure out what to make.
B) Vague idea — I have a rough theme, feeling, or genre in mind (e.g., "something with space" or "a cozy farming game") but nothing concrete.
C) Clear concept — I know the core idea — genre, basic mechanics, maybe a pitch sentence — but haven't formalized it into documents yet.
D) Existing work — I already have design docs, prototypes, code, or significant planning done. I want to organize or continue the work.
Wait for the user's answer. Do not proceed until they respond.
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 First seen · 181 lines · 22 tokens per session scan A edfec3880f12
start is a skill published in the GitHub repository CoralGame/Claude-Code-Game-Studios (19 stars, last pushed 5mo ago), licensed MIT. It adds 22 tokens to every session and 1,767 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to start, differing in 4 lines, and is treated as a copy.
Other skills, from other repositories
setup-engine
Configure the project's game engine and version. Pins the engine in CLAUDE.md, detects knowledge gaps, and populates engine reference docs via WebSearch when the version is beyond the LLM's training data.
gate-check
Validate readiness to advance between development phases. Produces a PASS/CONCERNS/FAIL verdict with specific blockers and required artifacts. Use when user says 'are we ready to move to X', 'can we advance to production', 'check if we can start the next phase', 'pass the gate'.
day-one-patch
Prepare a day-one patch for a game launch. Scopes, prioritises, implements, and QA-gates a focused patch addressing known issues discovered after gold master but before or immediately after public launch. Treats the patch as a mini-sprint with its own QA gate and rollback plan.
launch-checklist
Complete launch readiness validation covering every department: code, content, store, marketing, community, infrastructure, legal, and go/no-go sign-offs.
release-checklist
Generates a comprehensive pre-release validation checklist covering build verification, certification requirements, store metadata, and launch readiness.
milestone-review
Generates a comprehensive milestone progress review including feature completeness, quality metrics, risk assessment, and go/no-go recommendation. Use at milestone checkpoints or when evaluating readiness for a milestone deadline.