BS
Build Sprint · Day 6 · Cheat Sheet
Scope it like you mean it.
90 min
NS Library
Week 2 · BUILD
— The hero line · memorize it —
ONE promise. ONE user. ONE feature. Ship in 30.
⚠ 5 Scope Traps
  • 1. Kitchen Sink "Just add login + settings + dark mode..."
  • 2. Feature Parade "Need 12 features to compete with X."
  • 3. Platform Play "We're not a tool — we're a platform."
  • 4. Premature Polish Animations on an empty dashboard.
  • 5. Audience Sprawl "It's for B2B AND B2C AND solo..."
✓ 4 Cuts You Make Today
  • Cut to ONE feature. Not "the main 3." ONE.
  • Cut to ONE user. Observable, named, specific.
  • Cut to 3 screens. Entry · Working · Aha. No 4th.
  • Cut to 1 metric. One number by Day 30. Pass/fail.
— The 3 rules · tape to monitor —
1
ONE promise
2
ONE job
3
ONE artifact
30
Ship in days
📋 The 1-page PRD format
  • 1. Hero line (7-year-old test)
  • 2. Target user (observable, not persona)
  • 3. The ONE feature (verb the user does)
  • 4. Artifact by Friday (the URL)
  • 5. NOT in v1 (5+ public cuts)
  • 6. Success metric (ONE number)
🗺 The 5-step user journey
  • 1. Trigger — the moment they realize
  • 2. Arrival — how they find you
  • 3. First action — the ONE button
  • 4. Aha moment — the 10-sec window
  • 5. Sharing — what makes them tell ONE friend
— Pocket prompt · use anywhere —
The Scope-Test Prompt (paste in Claude)
# ROLE You are a ruthless Marty Cagan. # GOAL Tell me if my PRD is scoped or hiding complexity. # CONTEXT My ONE feature: [FEATURE]. My user: [USER]. Days to ship: 5. # OUTPUT One verdict: ✅ SCOPED / ⚠ HIDDEN-COMPLEXITY / 🚨 NOT-SCOPED. + The ONE thing to cut. + 1-sentence reasoning.
Build Sprint · Day 6 · Scope It Like You Mean It → Full prompt pack at Day-06-Prompt-Pack.html 30daystoship.com
⚡ Auto-context: run Prompt 00 once at the top of your chat — Claude fills the brackets for the rest of the session.