Sales / product marketing

Case study writer

Immediate result: A one-page case study in challenge → solution → result format, with a pull quote placeholder.

Problem it solvesGreat customer results never become case studies because writing one takes weeks.

Download SKILL.md
Add this skill to
ChatGPTClaudeGeminiPerplexity

You paste

Notes: logistics firm cut invoice processing from 6 days to 1 after switching

You get

Headline: How a logistics firm cut invoice processing from 6 days to 1

At a glance: 6 → 1 days · 3 people → 1 · 0 late-payment penalties since June

Confirm: the '0 penalties' figure and the June date.

About this skill

About Case study writer

Great customer results rarely become case studies because writing one takes weeks of back and forth. This skill turns interview notes or a call transcript into a one-page story: a results-led headline, three numbers at a glance, then the challenge, the solution and the results. Quotes are pulled verbatim and every number is one the customer stated. It finishes with a list of facts to confirm with the customer before publishing, which makes the approval step fast and keeps the story credible. To use it, paste the skill into your assistant and send interview notes or call transcript with the customer, and the results they agreed to share; the reply opens with “Headline”.

Case study writer AI skill for Sales / product marketing: you paste "Notes: logistics firm cut invoice processing from 6 days to 1 after switching" and get "Headline: How a logistics firm cut invoice processing from 6 days to 1"
Case study writer — example input and the first lines it returns. Works in ChatGPT, Claude and Gemini.
Job profile
Sales · Sales / product marketing
Works in
ChatGPT, Claude, Gemini, Copilot, Claude Code
Format
Agent Skills (SKILL.md)
Price
Free, no sign-up
Install instructions

Copy, paste, send

  1. Cold email writerCopy skillCopied ✓1 Copy the skillPress Copy skill.
  2. ANY AI ASSISTANTSKILLPaste here, then press Enter2 Paste it into a new chatChatGPT, Claude, Gemini or Copilot.
  3. ANY AI ASSISTANT3 Send your inputSend interview notes or call transcript with the customer.
The skill — paste this into your AI assistant
# Skill: Case study writer

You are running the "Case study writer" skill for me. I work as: Sales / product marketing. What I need from you: a one-page case study in challenge → solution → result format, with a pull quote placeholder.

## When I send you interview notes or call transcript with the customer, and the results they agreed to share
1. Write a headline with the result.
2. Tell the challenge, solution and results in short sections.
3. Pull out quotes verbatim from the notes.
4. List facts to confirm with the customer before publishing.

## Reply in this format
- Headline
- At a glance (3 numbers)
- Challenge
- Solution
- Results
- Quotes
- Facts to confirm

## Rules
- Only numbers the customer stated.
- Quotes must be verbatim and approved before use.
- Use only the facts I give you; mark anything you had to assume with [ASSUMPTION].
- If something essential is missing, ask me one short question, then continue.
- No preamble or filler: start with the result.

Confirm you're ready in one line, then wait for me to send interview notes or call transcript with the customer, and the results they agreed to share.

Then sendInterview notes or call transcript with the customer, and the results they agreed to share. For example: Notes: logistics firm cut invoice processing from 6 days to 1 after switching

ChatGPT

  1. Fastest: paste the skill as your first message in a new chat, then send your input.
  2. To keep it: open a Project, choose Instructions (or Settings → Personalization → Custom instructions for every chat) and paste it there.
  3. To share it with a team: create a custom GPT and paste the skill into its Instructions.
  4. In the Codex app: copy the skill's folder into ~/.codex/skills/ (or Customize → Skills → Add → Create skill).

Claude

  1. Fastest: paste the skill as your first message in a new chat, then send your input.
  2. To keep it: create a Project, open Project instructions and paste the skill.
  3. As a Claude Skill: download the skill's ZIP, then in Claude open Settings → Skills → Add → Upload skill and choose the file.

Gemini

  1. Fastest: paste the skill as your first message in a new chat, then send your input.
  2. To keep it: open Gems → New Gem, paste the skill into Instructions and save.

Microsoft Copilot

  1. Fastest: paste the skill as your first message, then send your input.
  2. In Microsoft 365 Copilot, save it as a prompt or paste it into an agent's instructions to reuse it.

Any other assistant

  1. Paste the skill as the system prompt or first message in any chat assistant (Perplexity, Meta AI, DeepSeek, Mistral, local models).
  2. Coding agents that read the Agent Skills format (SKILL.md) can load the downloaded file from their skills folder.

Install it permanently

Upload it to Claude, add it to ChatGPT's Codex app, clone it into Claude Code, or download the SKILL.md for any agent. Full guide with screenshots →

Download the ZIP and upload it in Claude. Claude then uses the skill on its own whenever a request matches.

Download ZIP

Quick setup

  1. In Claude, open Settings → Skills (under Customize).
  2. Click Add → Upload skill.
  3. Choose the ZIP — don't unzip it — and make sure the skill is switched on.
Claude Settings with Skills selected under Customize, and the Add menu open showing Upload skill, Create a skill, Create with Claude and Record your screen

Repositoryscienceofapps.com/skills/ai-skills.git · all 200 skills, one folder each, plain git over HTTPS

What it does

The steps it follows

  1. Write a headline with the result.
  2. Tell the challenge, solution and results in short sections.
  3. Pull out quotes verbatim from the notes.
  4. List facts to confirm with the customer before publishing.
What you get back

The reply format

  • Headline
  • At a glance (3 numbers)
  • Challenge
  • Solution
  • Results
  • Quotes
  • Facts to confirm

Rules it never breaks

  • Only numbers the customer stated.
  • Quotes must be verbatim and approved before use.
  • Uses only the facts you give it and marks assumptions.
FAQs

Questions about Case study writer

What does the Case study writer skill do?

Great customer results never become case studies because writing one takes weeks. The skill fixes that: a one-page case study in challenge → solution → result format, with a pull quote placeholder.

How do I install Case study writer in ChatGPT, Claude or Gemini?

Copy the skill and paste it as the first message of a new chat, then send your input. To keep it, paste it into a ChatGPT Project or custom GPT, a Claude Project or a Gemini Gem, or upload the SKILL.md file as a Claude Skill.

What do I send Case study writer after installing it?

Send interview notes or call transcript with the customer, and the results they agreed to share. If something essential is missing, the skill asks you one short question and then continues.

Is the Case study writer skill free?

Yes. It's free to copy, use and adapt, with no sign-up, and works in the free versions of ChatGPT, Claude, Gemini and Copilot.

More for sales
Account executive / solutions engineer

Demo script builder

ProblemDemos turn into feature tours, and buyers can't see their own problem being solved.

You paste

Clinic chain, pains: no-shows, manual reminders, no reports for owners

You get

0–3 min: 'You said no-shows cost about 15 slots a week — still right?'

3–9 min: show WhatsApp reminders → patient confirms → slot freed.

Check-in: 'Would your front desk use this as-is?'

Immediate resultA 20-minute demo script built around the buyer's top three pains, with talk track and checkpoints.

How to use it
SDR / account executive

Cold email writer

ProblemCold emails sound like templates, so reply rates stay in the low single digits.

You paste

Head of Support at a 200-person fintech, just posted hiring 10 agents · we sell AI ticket triage

You get

Subject: 10 support hires

Saw you're hiring 10 support agents. Before they start — how much of the queue is password resets and KYC status?

Ask: 'Worth a 15-minute look at your top ticket types?'

Immediate resultThree short, personalised cold emails (under 120 words) with subject lines and a soft call to action.

How to use it
Account executive

Discovery call prep

ProblemReps walk into discovery calls with generic questions and miss the real buying criteria.

You paste

Call with Ops Director at a 3PL warehouse company, we sell route-planning software

You get

Hypothesis: they plan routes in spreadsheets each morning, costing 2–3 hours of a planner's day.

Q (Impact): 'When a route is planned badly, what does it cost you — overtime, fuel, missed slots?'

Next step: offer a free route plan from one day of their real orders.

Immediate resultA one-page call plan: account snapshot, hypotheses, 12 discovery questions and next-step options.

How to use it

All 16 sales skillsAll 200 skillsRead it in the articleProve it: AI for Sales Professionals Certification (free test)

Free PDF · 74 pages · 2 editions

The Laws of UX, in one field guide

60 research-backed principles in 6 categories — what each one means, why it works on the human brain and how to use it on your own screens. Written by Sushant Singh, founder of Science of Apps, who has scaled consumer apps to lacs of users and spent 10+ years leading product across startups and digital businesses in the US, EU & India.

Pick your edition
Free. No card, no paywall — just your email.
Free PDF · 74 pages

Get Laws of UX by email

Choose your edition

You’ll also get occasional UX psychology tips. Unsubscribe anytime. Privacy policy

Free PDF · 90 pages · 2 editions

100+ Subscription Paywalls, decoded

110 real paywalls from top apps, taken apart, rated out of 5 and decoded with the Laws of UX — plus the frameworks, copy and checklists to ship your own. By Sushant Singh, founder of Science of Apps.

  • 110 paywalls rated
  • 34 Laws of UX
  • 12 frameworks

Which paywall scored 4.8 out of 5, and which scored 2.6? It’s all inside.

Pick your edition
Free. No card, no paywall — just your email.
Free PDF · 90 pages

Get 100+ Paywalls, Decoded by email

Choose your edition

You’ll also get occasional UX psychology tips. Unsubscribe anytime. Privacy policy