startup-design

1# Startup Design
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3A structured, multi-phase skill that takes a startup idea from raw concept to validated design. It produces a complete set of markdown documents organized by domain, with built-in progress tracking so work survives session interruptions.
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5## How It Works
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7The process has 8 numbered phases executed sequentially, plus a Pre-Flight Check (Phase 0.5) and a Customer Discovery gate (Phase 3.7). Each phase produces output files and updates the progress tracker. If a session is interrupted, resume from the last completed checkpoint.
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9```
10PRE-FLIGHT → INTAKE → BRAINSTORM → RESEARCH → [Research Gate] → CUSTOMER DISCOVERY → [Interview Gate] → STRATEGY → BRAND → PRODUCT → FINANCIAL → VALIDATION
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13### Modes
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15**Full Mode (default):** Execute all phases in order, including Pre-Flight and Customer Discovery. Best for thoroughly designing a startup from scratch.
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17**Fast Track Mode:** When the user says they want a "quick validation," "rapid assessment," or similar, or when time/budget is clearly limited, run a compressed version:
181. Phase 0.5 (Pre-Flight Check) — always run, takes 5 minutes
192. Phase 1 (Intake) — shortened to 1 round of questions; capture any prior customer conversations
203. Phase 2 (Brainstorm) — 3 variations instead of 5-8
214. Phase 3 (Research) — Wave 1 + Wave 2 only (skip customer voice and distribution deep-dives)
225. Phase 3.5 (Research Gate) — go/no-go checkpoint
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