Case study writer Claude skill

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."