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Start

  • 239 installs
  • 23.6k repo stars
  • Updated May 21, 2026
  • donchitos/claude-code-game-studios

For development and infrastructure management.

About

start is an AI coding tool that enhances development workflows. Builders use it for infrastructure, integration, and platform development within the catalog ecosystem.

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Start by the numbers

  • 239 all-time installs (skills.sh)
  • Ranked #1,579 of 4,347 Backend & APIs skills by installs in the Skillselion catalog
  • Data as of Aug 5, 2026 (Skillselion catalog sync)
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Installs239
repo stars23.6k
Last updatedMay 21, 2026
Repositorydonchitos/claude-code-game-studios

What it does

For development and infrastructure management.

Files

SKILL.mdMarkdownGitHub ↗

Guided Onboarding

This skill writes one file: production/review-mode.txt (review mode config set in Phase 3b).

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.

---

Phase 1: Detect Project State

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/ or production/milestones/.

Store these findings internally to validate the user's self-assessment and tailor recommendations.

---

Phase 2: Ask Where the User Is

This is the first thing the user sees. Use AskUserQuestion with these exact options so the user can click rather than type:

  • Prompt: "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?"
  • Options:
  • 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 selection. Do not proceed until they respond.

---

Phase 3: Route Based on Answer

If A: No idea yet

The user needs creative exploration before anything else.

1. Acknowledge that starting from zero is completely fine 2. Briefly explain what /brainstorm does (guided ideation using professional frameworks — MDA, player psychology, verb-first design). Mention that it has two modes: /brainstorm open for fully open exploration, or /brainstorm [hint] if they have even a vague theme (e.g., "space", "cozy", "horror"). 3. Recommend running /brainstorm open as the next step, but invite them to use a hint if something comes to mind 4. Show the recommended path: Concept phase:

  • /brainstorm open — discover your game concept
  • /setup-engine — configure the engine (brainstorm will recommend one)
  • /prototype — throwaway concept build: validate the core idea is fun before designing (1–3 days)
  • /art-bible — define visual identity (uses the Visual Identity Anchor brainstorm produces)
  • /map-systems — decompose the concept into systems
  • /design-system — author a GDD for each MVP system
  • /review-all-gdds — cross-system consistency check
  • /gate-check — validate readiness before architecture work

Architecture phase:

  • /create-architecture — produce the master architecture blueprint and Required ADR list
  • /architecture-decision (×N) — record key technical decisions, following the Required ADR list
  • /create-control-manifest — compile decisions into an actionable rules sheet
  • /architecture-review — validate architecture coverage

Pre-Production phase:

  • /ux-design — author UX specs for key screens (main menu, HUD, core interactions)
  • /vertical-slice — production-quality end-to-end build to validate the full game loop
  • /playtest-report (×1+) — document each vertical slice playtest session
  • /create-epics — map systems to epics
  • /create-stories — break epics into implementable stories
  • /sprint-plan — plan the first sprint

Production phase: → pick up stories with /dev-story

If B: Vague idea

1. Ask them to share their vague idea — even a few words is enough 2. Validate the idea as a starting point (don't judge or redirect) 3. Recommend running /brainstorm [their hint] to develop it 4. Show the recommended path: Concept phase:

  • /brainstorm [hint] — develop the idea into a full concept
  • /setup-engine — configure the engine
  • /prototype — throwaway concept build: validate the core idea is fun before designing (1–3 days)
  • /art-bible — define visual identity (uses the Visual Identity Anchor brainstorm produces)
  • /map-systems — decompose the concept into systems
  • /design-system — author a GDD for each MVP system
  • /review-all-gdds — cross-system consistency check
  • /gate-check — validate readiness before architecture work

Architecture phase:

  • /create-architecture — produce the master architecture blueprint and Required ADR list
  • /architecture-decision (×N) — record key technical decisions, following the Required ADR list
  • /create-control-manifest — compile decisions into an actionable rules sheet
  • /architecture-review — validate architecture coverage

Pre-Production phase:

  • /ux-design — author UX specs for key screens (main menu, HUD, core interactions)
  • /vertical-slice — production-quality end-to-end build to validate the full game loop
  • /playtest-report (×1+) — document each vertical slice playtest session
  • /create-epics — map systems to epics
  • /create-stories — break epics into implementable stories
  • /sprint-plan — plan the first sprint

Production phase: → pick up stories with /dev-story

If C: Clear concept

1. Ask them to describe their concept in one sentence — genre and core mechanic. Use plain text, not AskUserQuestion (it's an open response). 2. Acknowledge the concept, then use AskUserQuestion to offer two paths:

  • Prompt: "How would you like to proceed?"
  • Options:
  • Formalize it first — Run /brainstorm [concept] to structure it into a proper game concept document
  • Jump straight in — Go to /setup-engine now and write the GDD manually afterward

3. Show the recommended path: Concept phase:

  • /brainstorm or /setup-engine — (their pick from step 2)
  • /prototype — throwaway concept build: validate the core idea is fun before designing (1–3 days)
  • /art-bible — define visual identity (after brainstorm if run, or after concept doc exists)
  • /design-review — validate the concept doc
  • /map-systems — decompose the concept into individual systems
  • /design-system — author a GDD for each MVP system
  • /review-all-gdds — cross-system consistency check
  • /gate-check — validate readiness before architecture work

Architecture phase:

  • /create-architecture — produce the master architecture blueprint and Required ADR list
  • /architecture-decision (×N) — record key technical decisions, following the Required ADR list
  • /create-control-manifest — compile decisions into an actionable rules sheet
  • /architecture-review — validate architecture coverage

Pre-Production phase:

  • /ux-design — author UX specs for key screens (main menu, HUD, core interactions)
  • /vertical-slice — production-quality end-to-end build to validate the full game loop
  • /playtest-report (×1+) — document each vertical slice playtest session
  • /create-epics — map systems to epics
  • /create-stories — break epics into implementable stories
  • /sprint-plan — plan the first sprint

Production phase: → pick up stories with /dev-story

If D: Existing work

1. Share what you found in Phase 1:

  • "I can see you have [X source files / Y design docs / Z prototypes]..."
  • "Your engine is [configured as X / not yet configured]..."

2. Sub-case D1 — Early stage (engine not configured or only a game concept exists):

  • Recommend /setup-engine first if engine not configured
  • Then /project-stage-detect for a gap inventory

Sub-case D2 — GDDs, ADRs, or stories already exist:

  • Explain: "Having files isn't the same as the template's skills being able to use them. GDDs might be missing required sections. /adopt checks this specifically."
  • Recommend:

1. /project-stage-detect — understand what phase and what's missing entirely 2. /adopt — audit whether existing artifacts are in the right internal format

3. Show the recommended path for D2:

  • /project-stage-detect — phase detection + existence gaps
  • /adopt — format compliance audit + migration plan
  • /setup-engine — if engine not configured
  • /design-system retrofit [path] — fill missing GDD sections
  • /architecture-decision retrofit [path] — add missing ADR sections
  • /architecture-review — bootstrap the TR requirement registry
  • /gate-check — validate readiness for next phase

---

Phase 3c: Write Initial Stage File

After confirming the starting path (and before asking about review mode), write the initial stage to production/stage.txt. Create the production/ directory if it does not exist.

Stage mapping:

  • Path A, B, or C (starting from scratch): write Concept
  • Path D, existing project, engine not configured or only a game concept exists: write Concept
  • Path D, existing project with GDDs but no architecture documents: write Systems Design
  • Path D, existing project with full architecture (ADRs, architecture doc): write Technical Setup

Do this silently — no "May I write?" needed for this single-line file.

Say: "I've set production/stage.txt to [stage] — this anchors your status line and stage detection."

---

Phase 3b: Set Review Mode

Check if production/review-mode.txt already exists.

If it exists: Read it and show the current mode — "Review mode is set to [current]." — then proceed to Phase 4. Do not ask again.

If it does not exist: Use AskUserQuestion:

  • Prompt: "One setup choice: how much design review would you want as you work through the workflow?"
  • Options:
  • Full — Director specialists review at each key workflow step. Best for teams, learning the workflow, or when you want thorough feedback on every decision.
  • Lean (recommended) — Directors only at phase gate transitions (/gate-check). Skips per-skill reviews. Balanced approach for solo devs and small teams.
  • Solo — No director reviews at all. Maximum speed. Best for game jams, prototypes, or if the reviews feel like overhead.

Write the choice to production/review-mode.txt immediately after the user selects — no separate "May I write?" needed, as the write is a direct consequence of the selection:

  • Full → write full
  • Lean (recommended) → write lean
  • Solo → write solo

Create the production/ directory if it does not exist.

---

Phase 4: Confirm Before Proceeding

After presenting the recommended path, use AskUserQuestion to ask the user which step they'd like to take first. Never auto-run the next skill.

  • Prompt: "Would you like to start with [recommended first step]?"
  • Options:
  • Yes, let's start with [recommended first step]
  • I'd like to do something else first

---

Phase 5: Hand Off

When the user confirms their next step, respond with a single short line: "Type [skill command] to begin." Nothing else. Do not re-explain the skill or add encouragement. The /start skill's job is done.

Verdict: COMPLETE — user oriented and handed off to next step.

---

Edge Cases

  • User picks D but project is empty: Gently redirect — "It looks like the project is a fresh template with no artifacts yet. Would Path A or B be a better fit?"
  • User picks A but project has code: Mention what you found — "I noticed there's already code in src/. Did you mean to pick D (existing work)?"
  • User is returning (engine configured, concept exists): Skip onboarding entirely — "It looks like you're already set up! Your engine is [X] and you have a game concept at design/gdd/game-concept.md. Review mode: [read from production/review-mode.txt, or 'lean (default)' if missing]. Want to pick up where you left off? Try /sprint-plan or just tell me what you'd like to work on."
  • User doesn't fit any option: Let them describe their situation in their own words and adapt.

---

Collaborative Protocol

1. Ask first — never assume the user's state or intent 2. Present options — give clear paths, not mandates 3. User decides — they pick the direction 4. No auto-execution — recommend the next skill, don't run it without asking 5. Adapt — if the user's situation doesn't fit a template, listen and adjust

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