Build Sprint · Day 3 · Prompt Pack v2

The Mom Test prompt pack.

Eight world-class prompts in ROLE / GOAL / CONTEXT / CONSTRAINTS / OUTPUT / SELF-CHECK format. One click to copy. One optional first move that fills the brackets for you.

⚡ One-click copy
🤖 Role + Goal structured
📝 Fill-in-the-blank
✨ Auto-context option
⚡ How to use this pack · read first
Every prompt below is structured the same way — Role + Goal + Context + Constraints + Output + Self-check. This format consistently outperforms casual prompts by ~30% on output quality (Anthropic prompt engineering studies). The [BRACKETS] are what you fill in — or let Prompt 00 fill for you.
1
Optional first move: Run Prompt 00 once at the top of your chat. It pre-fills brackets from your prior chat history.
2
Pick the right phase: Before / During / After / Ship. The badge on each card tells you when to use it.
3
Copy + paste: Click Copy. Paste into Claude. Fill brackets if you skipped Prompt 00.
4
Trust the self-check: Every prompt makes Claude critique itself. Push back if the first draft is weak.
Quick jump · 8 prompts
Phase 0 · Optional first move
Skip the typing.
Use this if you've already chatted with Claude about your Build Sprint project. It pre-fills the brackets in every other prompt — from chat history.
Prompt 00 · Auto-Context Filler
Let Claude fill the brackets for you.

Optional. Run this ONCE at the start of your chat. Claude introspects what it knows about your project from prior conversations, confirms with you, then auto-fills the [BRACKETS] in every prompt that follows. Flags 🟡 anything it had to guess.

Optional · First
Paste this FIRST · only if you've discussed your project with Claude before
# ROLE You are my Build Sprint workshop assistant. You have memory of our previous conversations about my project. # GOAL Save me the typing. Pre-fill the [BRACKETS] in the prompts I'm about to send you, using context you already have about me. # YOUR TASK 1. Based on our previous chats, tell me what you currently know about: - My one-line idea - My target user (profile, where they hang out) - My riskiest assumption (what I'm hoping is true) - Interviews I've done so far (if any) 2. State each in 1-2 sentences. Mark uncertainty clearly with 🟡. 3. Ask me to confirm or correct anything that's wrong. 4. Once I confirm, when I send you ANY prompt with [BRACKETS] in it for the rest of this conversation, fill them in automatically using what you know — and flag with 🟡 anything you had to infer or guess. # IF YOU HAVE NO PRIOR CONTEXT Just say so. I'll fill the brackets manually. No problem. # OUTPUT FORMAT Use this exact structure for your first reply: **Here's what I know about your project:** - **Idea:** [your guess] 🟡 if uncertain - **Target user:** [your guess] 🟡 if uncertain - **Riskiest assumption:** [your guess] 🟡 if uncertain - **Interviews so far:** [your guess] **Confirm or correct?** Reply with anything I got wrong.
When to use this Only if you've already had at least one conversation with Claude about your Build Sprint idea. If this is a fresh chat, skip and fill brackets manually. Pro move: Open Claude with your Day 2 conversation, then paste Prompt 00 at the top.
Phase 1 · Before the interview
Prep with Claude.
Three prompts to walk in confident — script, practice partner, outreach script.
Prompt 01 · Script Generator
Generate a Mom-Test-grade script.

Claude writes you a 5-question interview script with built-in follow-ups. Never mentions your product. Every question targets past behavior. Self-critiques before showing.

Before
Paste · fill brackets (or use Prompt 00) · run
# ROLE You are a Y Combinator partner with 15 years of experience watching founders interview users badly. You've coached 500+ early-stage founders. Your superpower is sniffing out questions that trigger politeness instead of behavior. # GOAL Write me a Mom-Test-grade interview script I can use TODAY — sharp, tuned to my exact idea and user, not a generic template. # CONTEXT (fill in — or ask me) - My one-line idea: [ONE-LINE IDEA] - My target user: [PROFILE — role, where they hang out, key habits] - My riskiest assumption: [WHAT I'M HOPING IS TRUE] - Interviews done so far: [NONE / 1 / 2 / SUMMARIZE] # CONSTRAINTS - 5 questions, ordered broad → specific - Every question is about PAST behavior, never future hypotheticals - Never mentions my product, my idea, or words like "would" / "if" - Each question has 2 follow-up probes - Total run time: ~25 min, leaves 5 min for "who else?" - Tone: warm, curious, like a friend doing research — not formal # OUTPUT FORMAT 1. **Intro line** I read aloud to start (warm, neutral, sets expectations) 2. **The 5 questions**, numbered, each with: - Main question (1 sentence) - 2 follow-up probes (1 sentence each) - What real signal sounds like (1 sentence) 3. **Transition lines** between questions (1 sentence each) 4. **The close** — how to ask for 2 introductions # SELF-CHECK (do this BEFORE showing me) Run each question through: - ✓ Past tense? - ✓ Specific (story / number / name / date)? - ✓ Avoids "would" / "if" / opinion-seeking? - ✓ Doesn't pitch my product? - ✓ Sounds like a curious friend, not a researcher? Rewrite any that fail. Then tell me which question was hardest to write, and why.
Pro tip Don't accept the first draft. Push Claude: "Rewrite Q3 — it sounds like a pitch." Iteration is where good scripts become great. Run it 2-3 times.
Prompt 02 · Role-Play Partner
Practice with a fake user.

Claude plays your target user — polite, vague, sometimes guessing. You practice the script. Claude coaches each question between turns — Mom-Test verdict + trap detection + sharper rewrite.

Before
Paste · run a mock interview · ask one question at a time
# ROLE You are [TARGET USER PROFILE — age, role, location, key habits, how skeptical of new tools] — but more than that, you're a slightly suspicious, slightly busy, slightly distracted version of them. You don't volunteer information. You don't help me sell. You answer questions like a real human answers a random researcher: politely, briefly, sometimes vaguely, occasionally guessing your own behavior. # GOAL Run a realistic mock interview that exposes my bad questions BEFORE I ask them on a real call. # CONTEXT - User profile: [FULL PROFILE] - Workflow I'm researching: [SPECIFIC WORKFLOW] - Their stakeholder weight: [DECISION MAKER / INFLUENCER / END USER] # THE GAME 1. I'll ask one question at a time. 2. You respond AS THE USER — 2 to 4 sentences max. Real users don't monologue. Be polite, sometimes vague, sometimes guess. Don't volunteer my idea even if asked leading questions. Make me work for the signal. 3. After each user response, in a separate **[COACH]** block, tell me: - **Mom-Test-grade?** YES / NO / PARTIAL - **Trap detected?** (politeness / hypothetical / pitching / opinion-seeking / NONE) - **Sharper version?** Rewrite my question in past tense, specific, no "would" - **What to ask next** — the follow-up I should ask 4. Wait for my next question. # IF I START PITCHING Call me on it gently in the [COACH] block. That's part of why I'm practicing. Ready when I am.
Pro tip Run this twice. First round you'll fail more questions than you think. Second round you'll be sharper. By round 3, you're Mom-Test-grade. Save the chat log to study what tripped you up.
Prompt 03 · Outreach DM
DM script that converts at ~25%.

This is YOUR script (not a Claude prompt). Five micro-hacks built in: no-pitch reassurance, reciprocity, specificity, two concrete times, Calendly fallback. Send 20 to land 5.

Before
YOUR DM template · fill brackets · personalize the "specific reason" line
# ROLE OF THIS MESSAGE A 20-min user research request. Not a pitch. Not a cold sale. A favor that's also a gift. # GOAL Convert at ~25% to a 20-min call. Send 20 to book 5. # THE DM (paste, personalize, send) Hey [FIRST NAME] — Quick favor that's also a small gift. I'm researching how people like you currently handle [SPECIFIC WORKFLOW], and you came up because [SPECIFIC REASON — saw your tweet about X, mutual friend Y mentioned you, found you in r/Z]. Would you be open to a 20-min conversation this week? No pitch — I'm not trying to sell you anything. I just want to understand how you do this today, what frustrates you, and what you've tried. In exchange: I'll share back what I learn from the 10 other interviews. You'll probably learn something useful about your own workflow. Tuesday 4pm or Thursday 11am SGT work? Other times: [CALENDLY LINK]. Thanks for the favor either way — [YOUR NAME] # BONUS · let Claude personalize for one specific person After filling the template, paste it back into Claude with this follow-up: "Personalize this DM for [NAME] based on their public profile: [LINKEDIN URL or BIO TEXT]. Keep the structure. Sharpen the 'specific reason' sentence so it shows I actually looked at their profile."
Math Expect ~25% reply rate. Send 20 to land 5. Send 5 → land 1 is normal. Keep sending. Three quiet days does NOT mean it's not working — Tuesday and Thursday are your reply days.
Phase 2 · During the interview
In-the-room safety check.
For when you're stuck mid-interview and need a fast Mom-Test check on your next question.
Prompt 04 · Question-On-The-Fly
Check your next question in 5 seconds.

When the conversation turns somewhere you didn't expect and you need a question NOW. Open Claude on your phone, paste, get a Mom-Test-grade question back.

During
Paste · use mid-interview when stuck
# ROLE You are my interview coach. I'm IN AN INTERVIEW RIGHT NOW. Every second counts. # GOAL Give me ONE Mom-Test-grade question. Under 15 words. No preamble. I need to ask it in the next 10 seconds. # CONTEXT - My idea: [ONE-LINE IDEA] - What the user just brought up: [NEW TOPIC THEY JUST MENTIONED] - What I want to learn: [REAL PAIN / WORKAROUND / SPEND] # CONSTRAINTS - Past tense - Specific (asks for a story, a number, a name, a date) - Doesn't mention my product - Under 15 words - Sounds like a curious human, not a researcher # OUTPUT Just the question. Nothing else. No preamble. No "here's a question for you." Just the question.
In-room hack Keep this prompt in a phone text shortcut (iOS Text Replacement, Android Text Shortcuts). Type "momq" → full prompt expands. One tap to a sharp follow-up. Beats freezing mid-interview every time.
Phase 3 · After the interview
Extract the real signal.
Synthesis + follow-up. The work isn't done when the call ends.
Prompt 05 · Synthesis
Turn 30 min of notes into a 1-pager.

Paste raw notes or transcript. Claude extracts quotes, scores real vs polite signal, gives you a KEEP/WATCH/KILL verdict, tells you what to ask the next user.

After
Paste notes or transcript · run within 20 min of interview
# ROLE You are a senior product researcher at a top venture firm. You read user interview transcripts every day. Your skill: separating real signal from polite signal — and knowing when a founder is about to fool themselves. # GOAL Turn my messy interview notes into a structured 1-pager that tells me honestly what to believe, what to change, and what to ask the next user. # CONTEXT - My idea: [ONE-LINE IDEA] - User I interviewed: [NAME / TYPE / PROFILE] - My riskiest assumption going in: [WHAT I WAS HOPING IS TRUE] # RAW NOTES [PASTE NOTES OR TRANSCRIPT] # OUTPUT FORMAT **1. Direct quotes that show real pain** List verbatim (or as close as my notes allow). With each, your best guess at emotion: frustrated / resigned / annoyed / curious / neutral. **2. Real signal indicators** (be specific — what did they SAY or DO) - Past spend - Existing workaround - Introductions offered - Visible frustration - Action requested - Specific story details **3. Polite signal red flags** (be honest — what was just nice?) - Compliments without follow-through - Hypotheticals - Feature ideas without problem stories - Vague "I would..." - Proxy answers ("people like me...") - Abstract conversation **4. Score · 1-5 each** - Real-signal score: __ / 5 - Polite-signal score: __ / 5 - **Verdict:** KEEP / WATCH / KILL - **One-line reason** for the verdict **5. My hypothesis update** - What I should believe MORE strongly now - What I should believe LESS strongly now - What I should ADD to my hypothesis **6. Top 3 follow-up questions for the next user** Based on what was vague or surprising. In Mom-Test format (past tense, specific, no "would"). **7. One question I asked badly** Identify it. Diagnose the trap (politeness / hypothetical / pitch / opinion). Rewrite it sharper. # SELF-CHECK Before showing me the output: - Be honest, even if it makes me uncomfortable - Don't sugarcoat polite signal as real signal - If real-signal < polite-signal, say so plainly - I'd rather be wrong now than 30 days from now
The 20-minute rule Run this synthesis within 20 minutes of the interview ending. Memory decay is brutal. The gold quotes vanish first. Set a timer when you say goodbye on the call.
Prompt 06 · Thank-You Follow-Up
A follow-up that earns two intros.

Claude writes a personalized thank-you email that closes the loop, demonstrates listening, asks for intros, and offers to draft the intro email itself (3× intro conversion rate).

After
Paste · run within 4 hours of interview · send within 24
# ROLE You are a thoughtful founder who just had a great 20-min user research call and wants to close the loop in a way that earns trust, demonstrates you listened, and opens the door to 2 more introductions. # GOAL Write a short, warm, specific follow-up email I send within 4 hours of the call. It should be ~150 words, feel hand-written, and end with a low-friction ask for intros. # CONTEXT - Their name: [FIRST NAME] - The topic of the call: [WORKFLOW / PROBLEM AREA] - One specific thing they said that was a lightbulb moment: [VERBATIM IF POSSIBLE] - One workaround or frustration they mentioned: [BRIEF DESCRIPTION] - Someone they referenced who deals with this too: [NAME OR ROLE] - My idea (for my reference, do not mention in email): [ONE-LINE IDEA] # CONSTRAINTS - ~150 words - Warm, specific, not salesy - DO NOT pitch my product (this is research, not sales) - Reference TWO specific things they said (proves you listened) - Ask for ONE intro (not 5) - Offer to draft the intro email (this 3× the conversion) - End with a low-pressure P.S. # OUTPUT FORMAT **Subject:** [Compelling subject under 8 words] **Body:** [The email] # SELF-CHECK - ✓ Specific (mentions verbatim what they said)? - ✓ Reciprocal (offers something back)? - ✓ Low-friction intro ask (offers to draft)? - ✓ Doesn't pitch my product? - ✓ Under 150 words?
The intro hack "Happy to draft the intro email if it makes it easier" — this single line triples your intro conversion rate. Most people want to help but don't want to write. Make it easy.
Phase 4 · Ship the artifact
Your public Interview Guide.
Distribution as a side effect of doing the work.
Prompt 07 · Lovable Build Prompt
60 seconds to a live page.

Paste into Lovable. Get a magazine-quality public Interview Guide page that recruits more interview subjects than cold DMs.

Ship
Paste into Lovable · "New Project" · 60 sec to live
# ROLE You are a senior product designer building a public-facing page for a founder doing genuine user research. The page should feel intentional and credible — like a real founder doing real work, not a marketing page. # GOAL Build a public "Interview Guide" page that: 1. Demonstrates the founder's seriousness and method 2. Recruits more interview subjects (passive distribution) 3. Looks magazine-quality, not template-quality # CONTEXT - My name: [YOUR NAME] - Niche I'm interviewing: [NICHE — e.g., solo music teachers, indie restaurant owners] - My one-line idea (for hero context, no pitch): [ONE-LINE IDEA] - My 5 questions from Prompt 01: [PASTE 5 QUESTIONS] - My X / LinkedIn handle for DMs: [HANDLE OR URL] # PAGE STRUCTURE **Hero:** - Headline: "[YOUR NAME] · User Interview Guide for [NICHE]" - Subtitle: "Day 3 of 30 · Build Sprint at Network School" - Subheader: "Built with the Mom Test framework" **Body sections (in this order):** 1. **"Why I'm interviewing"** — 2 sentences about the idea, no pitch 2. **"The 3 rules I'm following"** — Past not future · Specifics not generics · Listen more than talk 3. **"My 5 questions"** — numbered, in a clean card grid (use my questions above) 4. **"What I'm learning"** — placeholder section, "I'll update this daily this week" 5. **"Want to be interview #6?"** — DM me on [X/LinkedIn handle] 6. **"Why public"** — 2 sentences on why sharing the process publicly # STYLE - Light theme, modern, magazine-quality - Bold sans-serif (Inter or Space Grotesk) - One accent color (deep indigo: #4F46E5) - Mobile-first - Generous white space, easy to read on phone - One subtle gradient detail in the hero, otherwise restrained - NO stock photos, NO emojis in headings, NO marketing speak # SELF-CHECK Before publishing, verify: - ✓ Looks credible (not template-y)? - ✓ Mobile-readable (most traffic will be mobile)? - ✓ Headline communicates the niche clearly? - ✓ DM link is prominent (this is the conversion)? - ✓ No marketing speak (founders smell it instantly)?
Distribution unlock Post the URL in 2 places: your Discord cohort channel + your own X / LinkedIn. Tag #BuildSprint. People in your niche will share it. Some will DM YOU asking to be interviewed. That's the unlock.
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