setup-engine

When this skill is invoked: ## 1. Parse Arguments Four modes: - **Full spec**: `/setup-engine godot 4.6` — engine and version provided - **Engine only**: `/setup-engine unity` — engine provided, version will be looked up - **No args**: `/setup-engine` — fully guided mode (engine recommendation + version) - **Refresh**: `/setup-engine refresh` — update reference docs (see Section 10) - **Upgrade**: `/setup-engine upgrade [old-version] [new-version]` — migrate to a new engine version (see Section 11) --- ## 2. Guided Mode (No Arguments) If no engine is specified, run an interactive engine selection process: ### Check for existing game concept - Read `design/gdd/game-concept.md` if it exists — extract genre, scope, platform targets, art style, team size, and any engine recommendation from `/concept-brainstorm` - If no concept exists, inform the user: > "No game concept found. Consider running `/concept-brainstorm` first to discover what > you want to build — it will also recommend an engine. Or tell me about your > game and I can help you pick." ### If the user wants to pick without a concept, ask in this order: **Question 1 — Prior experience** (ask this first, always, via `question`): - Prompt: "Have you worked in any of these engines before?" - Options: `Godot` / `Unity` / `Unreal Engine 5` / `Multiple — I'll explain` / `None of them` - If they pick a specific engine → recommend that engine. Prior experience outweighs all other factors. Confirm with them and ...