Customer Interview Script Expert

Overview

Running a customer interview is harder than it looks. The difference between a 60-minute conversation that produces three actionable insights and one that produces zero is almost entirely method: what you ask, when you ask it, and what you do not ask. This skill is the live-interview companion to discovery/interview-synthesis/ (post-interview analysis) and discovery/identify-assumptions/ (which produces the questions you go in to test).

The script structure draws from four canonical sources: Steve Portigal's Interviewing Users (rapport, listening, "tell me about the last time"), Teresa Torres' Continuous Discovery Habits (story-based probing, weekly cadence), Rob Fitzpatrick's The Mom Test (avoiding compliments, opinions, and futures), and Lewis Lin's behavioral interviewing patterns (concrete-recent-relevant). The goal is to leave each interview with at least one story, one contradiction, and one surprise.

Core Capabilities

• 5-phase script -- opening/consent, context, story collection (the meat), probing/synthesis, closing -- timed for 45/60/90-minute slots.
• Story-based probing -- the story funnel and 5-Whys turn opinions into concrete-recent-relevant evidence.
• Mom Test discipline -- bad-question to good-question conversions that strip out compliments, fluff, and feature pitches.
• Question banks by type -- problem discovery, solution validation, journey mapping, churn/win-loss.
• Interview craft -- rapport rules, silence handling, pacing, pair-interviewing roles, recording/consent/storage.

When to Use

• Problem discovery -- test whether a customer pain is real, who has it, and how acute it is.
• Solution validation -- get feedback on a wireframe/prototype grounded in past behavior, not hypotheticals.
• Journey research -- understand the end-to-end flow of how a customer does a job today (tools, workarounds, handoffs).
• Churn or win/loss -- understand why customers left, stayed, or chose a competitor.
• Continuous discovery cadence -- weekly customer touchpoints to keep the team grounded in evidence.

Clarify First

Before building the interview script, confirm these inputs. If any is unknown or vague, ASK — do not assume:

• ] Interview type — problem discovery / solution validation / journey / churn-win-loss (selects the question bank and phase emphasis)
• ] Must-answer questions — the 2-3 assumptions you go in to test (drives the custom story-collection prompts)
• ] Time slot — 45 / 60 / 90 minutes (sets the per-phase timing)
• ] Participant recency — how recently they did the job (story-based probing degrades past ~90 days, which weakens the script's core)

Stop rule: ask only the 2-3 that most change the output. If the user says "just draft it," proceed and list your assumptions at the top of the artifact.

Quick Start

1. Pull top assumptions from discovery/identify-assumptions/; write 2-3 must-answer questions and pick the interview type.
2. Customize assets/interview_script_template.md and pull type-specific prompts from assets/question_bank.md.
3. Run the 5-phase script (rapport first, stories in the middle, contradictions at the end); debrief within 30 minutes; hand the transcript to discovery/interview-synthesis/.

See references/interview-execution-playbook.md for the full method, scripts, question banks, pacing, and troubleshooting.

References

• references/interview-execution-playbook.md -- read this before running an interview: the four-source frameworks, the verbatim 5-phase script, question banks by type, what-not-to-ask table, pacing, pair-interviewing roles, recording/consent, silence handling, workflow, troubleshooting, and success criteria.
• references/interviewing-methodology-guide.md -- read this for the deep method with worked examples (Portigal, Torres, Fitzpatrick, Lin).
• references/red-flags.md -- read this when auditing a transcript or technique for biasing anti-patterns before trusting the findings.
• assets/interview_script_template.md -- ready-to-customize 5-phase interview script.
• assets/question_bank.md -- question bank organized by interview type (problem / solution / journey / churn).

Scope & Limitations

In scope: live discovery interview script structure and pacing; question banks (problem / solution / journey / churn); rapport, listening, and silence techniques; recording consent and retention policy; pair-interviewing role definitions.

Out of scope: interview synthesis and theme clustering (discovery/interview-synthesis/); assumption mapping before interviews (discovery/identify-assumptions/); survey design and quantitative research; usability testing protocols (task-based, not story-based); recruiting operations (panel sourcing, screening, incentives).

Caveats: this skill produces interview technique, not research operations. Story-based interviewing is bounded by participant memory -- events older than 90 days are reconstructions. B2B enterprise interviews often need procurement-style approval; build 2-4 weeks into recruiting. Continuous discovery assumes weekly touchpoints; one-off rounds produce shallower evidence -- weight findings accordingly.

Integration Points

| Integration | Direction | What Flows | |-------------|-----------|------------| | discovery/identify-assumptions/ | Receives from | Top assumptions become the must-answer questions for each interview | | discovery/interview-synthesis/ | Feeds into | Transcripts and debrief notes are the input for theme clustering | | discovery/brainstorm-ideas/ | Bidirectional | Pre-interview hypotheses; post-interview ideas seeded by themes | | discovery/brainstorm-experiments/ | Feeds into | Validated pains become experiment hypotheses | | discovery/jtbd-workshop/ | Complementary | Switch interviews use this script structure as their foundation | | discovery/value-proposition-canvas/ | Feeds into | Jobs, pains, and gains captured in stories populate the Customer Profile | | execution/create-prd/ | Feeds into | Direct quotes strengthen PRD Background and Market Segments |