Immediate result: A one-page summary: the headline, three supporting points, the 'so what' and a recommendation.
Problem it solvesAnalysis gets presented as charts with no story, and leaders can't act on it.
Findings: repeat customers 22% of buyers but 51% of revenue; repeat rate fell 4 pts
Headline: Repeat customers are a fifth of buyers but half our revenue — and we're losing them.
Recommendation: fund a 6-week retention test before more acquisition spend.
Caveat: one quarter of data.
Analysis presented as a pile of charts leaves leaders unable to act. This skill turns your findings into a one-page summary in pyramid style: a headline written as a full sentence with the key number, three supporting points in order of importance, the implication, a recommendation and the caveats. It uses only the numbers you provide and says what you would need to be more certain. The result reads in a minute and makes the decision obvious, which is the point of analysis. To use it, paste the skill into your assistant and send your findings, numbers and charts described in text, and who the audience is; the reply opens with “Headline”.
# Skill: Data story writer
You are running the "Data story writer" skill for me. I work as: Analyst presenting to leadership. What I need from you: a one-page summary: the headline, three supporting points, the 'so what' and a recommendation.
## When I send you my findings, numbers and charts described in text, and who the audience is
1. Write the headline as a full sentence with the key number.
2. Order three supporting points by importance (pyramid principle).
3. State the implication and the recommendation.
4. List caveats and what you'd need to be more certain.
## Reply in this format
- Headline
- Supporting points
- So what
- Recommendation
- Caveats
## Rules
- Use only numbers provided.
- 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 my findings, numbers and charts described in text, and who the audience is.Then sendYour findings, numbers and charts described in text, and who the audience is. For example: Findings: repeat customers 22% of buyers but 51% of revenue; repeat rate fell 4 pts
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
OpenAI's Codex app reads the same SKILL.md format. Copy the skill into your Codex skills folder:
$ git -c http.version=HTTP/1.1 clone https://scienceofapps.com/skills/ai-skills.git
$ cp -r ai-skills/data-story-summary ~/.codex/skills/
Clone the library and copy this skill into your Claude Code skills folder.
$ git -c http.version=HTTP/1.1 clone https://scienceofapps.com/skills/ai-skills.git
$ cp -r ai-skills/data-story-summary ~/.claude/skills/~/.claude/skills/ for all projects, or .claude/skills/ inside one project.Download the skill file and put it in a folder named after the skill.
Download SKILL.md~/.claude/skills/data-story-summary/SKILL.md.Repositoryscienceofapps.com/skills/ai-skills.git · all 200 skills, one folder each, plain git over HTTPS
Analysis gets presented as charts with no story, and leaders can't act on it. The skill fixes that: a one-page summary: the headline, three supporting points, the 'so what' and a recommendation.
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.
Send your findings, numbers and charts described in text, and who the audience is. If something essential is missing, the skill asks you one short question and then continues.
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.
ProblemTeams need a forecast by Friday and either guess or overbuild a model.
Monthly orders Oct 2025–Sep 2026, forecast Oct–Dec 2026
History: +3% a month, with a Diwali spike (Oct–Nov ≈ 1.4× normal).
Method: seasonal naive × trend — simple and explainable.
Base Nov 2026: 18,900 · low 16,800 · high 21,000
Immediate resultA transparent forecast with method, formulas, base, high and low cases.
ProblemAnalytics is full of badly named events nobody trusts, and key actions aren't tracked at all.
Food delivery app: search, add to cart, checkout, payment, rating
search_performed — on results load — {query_length, results_count, filters_used}
payment_failed — gateway error — {method: upi|card|cod, error_code}
Exclude: delivery address, phone, typed search text.
Immediate resultA tracking plan: events, properties, naming convention and the questions each answers.
ProblemSimple business questions wait days in the data team's queue because nobody else can write SQL.
BigQuery · monthly active users for 2026 · events(user_id, event_name, event_ts)
MAU = distinct users with any event in the calendar month (UTC).
SELECT DATE_TRUNC(DATE(event_ts), MONTH) AS month, COUNT(DISTINCT user_id) AS mau FROM events WHERE event_ts >= '2026-01-01' GROUP BY month ORDER BY month;
Sanity check: no month should exceed total sign-ups to date.
Immediate resultA correct, commented SQL query for your database, with the assumptions it makes spelled out.
All 14 data & analytics skillsAll 200 skillsRead it in the articleProve it: AI for Data Analysts Certification (free test)
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.
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.