# Design Sprint

> Run a structured 5-day process to prototype, test, and validate product ideas with real users. Use when the user mentions "design sprint", "validate in a week", "rapid prototype", "test with users", "de-risk before building", "GV sprint", "prototype testing", or "design workshop". Also trigger when a team needs to make a critical product decision quickly, resolve stakeholder disagreements, or test risky ideas before investing in development. Covers mapping, sketching, deciding, prototyping, and testing. For ongoing experimentation, see lean-startup. For customer job analysis, see jobs-to-be-done.

- Skill: `ariadoss/design-sprint` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ariadoss/design-sprint`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ariadoss/design-sprint/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Product & Planning
- License: MIT
- Author: ariadoss (https://skillmd.com/u/ariadoss)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ariadoss/design-sprint

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# Design Sprint Framework

## Core Framework

The Design Sprint compresses product development cycles into five days: Map (Monday), Sketch (Tuesday), Decide (Wednesday), Prototype (Thursday), and Test (Friday).

**Prerequisites:**
- Important problem worth dedicated focus
- Decision maker + 4-7 diverse team members
- Full 5 days (10am-5pm, uninterrupted)
- Dedicated workspace with whiteboards

**Scoring:** Rate 0-10 based on adherence to structure, time-boxing, prototyping, and user testing.

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## Daily Breakdown

**Monday: Map**
- Define 2-year goal and sprint questions
- Map customer journey (5-15 steps)
- Interview experts, capture "How Might We" opportunities
- Select target customer moment for focus

**Tuesday: Sketch**
- Lightning demos for inspiration
- Individual solution sketches (no group brainstorming)
- Four-step process: Notes → Ideas → Crazy 8s → Solution Sketch
- Anonymous 3-panel storyboards showing user experience

**Wednesday: Decide**
- Gallery critique with silent dot voting
- Decider uses supervote (3 dots override)
- Create 10-15 panel storyboard for prototype
- Combine best ideas into unified solution

**Thursday: Prototype**
- Assign roles: Makers, Stitcher, Writer, Collector, Interviewer
- Build realistic facade (not working code)
- Tools: Figma, Keynote, or prototyping platforms
- Trial run before Friday testing

**Friday: Test**
- Conduct 5 customer interviews (30 minutes each)
- Five-act structure: Welcome → Context → Introduce → Tasks → Debrief
- Team observes, records patterns
- Identify what worked, what failed, next steps

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## Key Principles

- **Five customers reveal patterns** after 3-5 interviews; diminishing returns after 5
- **Prototype fidelity:** Facade quality—realistic enough for honest reactions, not production-ready
- **No explaining:** Let users interpret and struggle; observe confusion
- **Decider authority:** Final call on Tuesday solutions and Wednesday decision
- **Time protection:** No interruptions; full commitment required

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## Common Mistakes to Avoid

| Error | Solution |
|-------|----------|
| Skip prototyping | Always build, even simply |
| Over-engineer prototype | Focus on facade only |
| Test wrong users | Screen for target customers |
| Explain to users | Let them struggle independently |
| No decision maker | Commitment required or postpone |
| Interruptions | Protect focus entirely |

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## Variations

- **4-Day Sprint:** Compress Map + Sketch into Day 1
- **Remote Sprint:** Use Miro/FigJam, Zoom, same structure
- **Multi-Sprint:** Sequential sprints on broad → detailed → refined problems

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## Diagnostic Checklist

Confirm before sprinting:
- [ ] Decider committed for full week
- [ ] Problem important enough
- [ ] Prototype feasible in 1 day
- [ ] Can recruit 5 target users
- [ ] Team protected from interruptions

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**Source:** Framework developed at Google Ventures by Jake Knapp; detailed in *"Sprint: How to Solve Big Problems and Test New Ideas in Just Five Days"* by Knapp, Zeratsky, and Kowitz.