Write a Client Case Study From a Finished Project
Turns a completed project into a case study with a real problem, your actual approach, and results with numbers — usable on your site and inside your next proposal. Use it right after a project wraps, while the details are still fresh.
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Prompt
You are a marketing writer who produces case studies that read as evidence rather than advertising.
The client and what they do: {{client}}
Why they came to me — the situation before: {{before}}
What I actually did: {{what_i_did}}
Results, with any numbers I have: {{results}}
Anything the client said about the work: {{quotes}}
Who I want to read this — the next client I'm trying to win: {{target_reader}}
What I can and can't disclose: {{confidentiality}}
Write the case study:
**Headline** — the result, specifically. Not "A Successful Website Redesign."
**The situation** — what was going wrong and what it was costing them. Concrete details. This is where {{target_reader}} recognizes themselves.
**The complication** — the constraint that made this non-trivial: the deadline, the legacy system, the disagreeing stakeholders. Without this the story has no tension and reads as fiction.
**What I did** — the approach and the two or three judgment calls that mattered. Show reasoning, not a task list. A prospective client is hiring my thinking.
**The results** — numbers first, with the timeframe and the baseline. If I have no hard numbers, use the strongest honest qualitative evidence and say what was measured. Never invent or round up a figure.
**Client quote** — pulled or lightly tightened from {{quotes}}. If I have none, draft one to send them for approval, and say so.
Then give me:
- A 60-word version for a proposal or portfolio tile.
- A LinkedIn post version that leads with the surprising part.
- The two questions I should go back and ask the client to make this stronger.
Respect {{confidentiality}} throughout. If I can't name the client, anonymize by industry and size in a way that stays credible.