Case Study Writer

---
title: "Case Study Writer Prompt — Interview Yourself Into a Case Study People Believe"
author: "Mahmoud Omar"
author_url: "https://mahmoudomar.com"
category: "content"
type: "prompt"
level: "beginner"
works_with: "Claude, ChatGPT, Gemini"
language: "Bilingual"
last_verified: "2026-07-03"
hook: "Nobody believes 'we 10x'd revenue'. Everybody believes 'we went from 41% to 26% checkout completion, and here's the shipping fee that did it.'"
email_subject: "Turn a finished campaign into a case study (interview format)"
short_pitch: "This prompt interviews you about a real campaign — baseline, intervention, numbers, external factors — then writes the case study with credibility architecture built in: equal comparison windows, the confession section, and 'where this won't work'."
---

# Case Study Writer Prompt

> Turns a real campaign into a written case study via structured interview: it extracts the facts (baseline, the move, the windows, the confounders), then writes the story with the credibility features most case studies skip — what failed first, what else was happening, and where the tactic won't transfer.

## ⚡ What it does

Case studies fail at credibility, not writing: percentage claims with no baseline, cherry-picked windows, wins with no confessed context. This prompt inverts the process — interview first, prose second. It refuses to write until it has the numbers and their windows, it asks the awkward questions (what else changed? what did the season do?), and it structurally includes the two sections that make readers trust the rest: "what wasn't working" and "where this won't work."

## 🎯 When I use it (real scenario)

This prompt exists because the hardest part of documenting real work isn't confidentiality — it's extraction. After a campaign, the facts live scattered across dashboards, chats, and memory, and the person who ran it is the worst judge of what's obvious. The interview format is how case studies get out of practitioners' heads (including mine — it's the companion to this repo's own [case-study template](../../templates/CASE_STUDY_TEMPLATE.md), which defines the output anatomy this prompt writes into).

## 📋 The Prompt