Why a 7-day sprint?
Most founders waste months building products no one wants. The point of a 7-day validation sprint is to compress the discovery loop: by the end of the week you should know whether a real, paying audience exists for the problem you want to solve — or whether to move on.
Day 1 — Write down the hypothesis
Frame your idea as a single sentence: "[Audience] struggles with [problem] and would pay [price] for [solution]." Be specific. "Marketers" is not an audience; "B2B SaaS marketers at companies with 50–200 employees" is. The narrower the hypothesis, the easier it is to falsify.
Day 2 — Map the existing alternatives
List 5 ways your target audience solves this problem today, including spreadsheets, Notion templates, freelancers, and "doing nothing." If they are not actively spending time or money on a workaround, the pain is not strong enough to justify a new product.
Day 3 — Find 20 prospects
Use LinkedIn Sales Navigator, niche subreddits, Slack communities, and Twitter to identify 20 specific people who match your target audience. Save their names and how you found them. This becomes your discovery interview shortlist.
Day 4–5 — Run discovery interviews
Reach out to all 20 with a short, no-ask message: "I'm researching how [audience] handles [workflow]. Could I ask you 4 questions over a 15-minute call?" Aim for 8–10 conversations. Ask about the last time the problem hurt, what they tried, and what they paid (if anything). Do not pitch your solution.
Day 6 — Score the signal
After interviews, score each prospect on three axes: pain severity (1–5), willingness to pay (1–5), and reachability (how easy will it be to find more like them). If the average pain × pay score is under 12 across all interviews, the wedge is too weak.
Day 7 — Write the kill-or-build memo
In one page, document the hypothesis, what you heard, the score, and your decision. If you are building, your memo doubles as the brief for the MVP. If you are killing, you saved yourself months of wasted code.
What to do next
If validation passes, run our [First 100 Users Planner](/free-tools/first-100-users) to design the early acquisition motion, then use the [Vibe Coding Time Estimator](/free-tools/vibe-time-estimator) to scope the MVP. Pair the sprint with the [Confidence scoring methodology](/blog/how-vibe-ideas-scores-startup-ideas) to compare your hypothesis against the patterns we see across 1,000+ generated blueprints.