--- name: case-study-writer description: "Use this skill when you need a B2B customer case study or success story that sales can use: \"write a case study\", \"turn this customer interview into a story\", \"customer success story for our website\", \"one-pager for sales\". Plans the interview, structures the story (before, trigger, decision, rollout, results, what's next), writes it with real numbers and quotes, and produces versions for the website, a sales one-pager, a cold email paragraph and a LinkedIn post. Every claim is approved by the customer." license: MIT metadata: title: Case study writer category: positioning tags: "Marketing, Sales, Founders, Customer Success" author: prosyo version: "1.0.0" keywords: "b2b case study template, write a customer case study, customer success story, claude case study skill, case study interview questions" inputs: "Customer interview or notes, Usage and results data, Customer approval status" outputs: "Interview guide, Full case study, Sales one-pager, Email and social versions" --- Use this when a customer has a result worth sharing. The best case studies read like a story a peer would tell, with the buyer's doubts left in. ## Inputs - Interview transcript or notes with the customer (or run the guide below). - Results data: before and after numbers, time frames. - What the customer has approved for publication: name, logo, quotes, numbers. ## The play ### 1. Interview for the story, not the praise Ask: - What was happening before? What did it cost you? - What made you look for a change then? - What else did you consider? What almost stopped you? - How did the rollout actually go, including the bumps? - What changed, in numbers, and how do you measure it? - What would you tell a peer considering it? ### 2. Structure it 1. **Headline**: the result, with the number. "How Northwind filled 15% more chairs in 90 days." 2. **Snapshot**: company, size, use case, top 3 results. 3. **Before**: the situation and its cost, in their words. 4. **Trigger and decision**: why now, what they compared, why they chose. 5. **Rollout**: what it took, honestly. 6. **Results**: numbers with time frames and how they were measured. 7. **What's next**. ### 3. Use quotes well Two to four quotes, each doing a job: the pain, the decision, the result. Edit for length, never for meaning, and get approval on the final wording. ### 4. Make the versions - Website: 600-900 words with the structure above. - Sales one-pager: snapshot, before and after, three results, one quote. - Cold email paragraph: one sentence of before, one of after. - LinkedIn post: the story in 150 words with the turning point. ## What good looks like - The headline number is specific, time-bound and approved. - The "before" is vivid enough that a prospect recognises themselves. - Doubts and bumps are included; they make the result credible. - The common mistake is a page of praise ("They're a great partner!") with no numbers and no story. ## Rules - MUST get customer approval for name, quotes and numbers before publishing. - MUST state how and over what period results were measured. - NEVER round up results or combine customers into one story. - NEVER publish an anonymised story with details that identify the customer anyway. ## Example prompts - "Turn this interview transcript with Northwind into a case study and a one-pager." - "Write interview questions for a customer who cut onboarding time by half." - "Make a cold email paragraph and a LinkedIn post from our Contoso case study."