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Sales Decline Analyzer

Funnel Decomposition Analyst — Claude Skill

by growthack88 · MIT license · ★ 117 on GitHub

Funnel Decomposition Analyst — Claude Skill cover

Senior performance analyst skill that answers "why did sales drop (or jump)? using rigorous funnel decomposition.

---
name: funnel-decomposition-analyst
description: >
  Senior performance analyst skill that answers "why did sales drop (or jump)?"
  using rigorous funnel decomposition. Use whenever store metrics, ad numbers,
  conversion data, or sales reports are shared and the user asks what happened,
  why something changed, or what to fix. Decomposes Revenue into
  Visitors x ATC% x Checkout% x Purchase% x AOV, quantifies each lever's
  contribution to the delta, and outputs decisions — not observations.
author: "Mahmoud Omar — https://mahmoudomar.com"
license: MIT
---

# Funnel Decomposition Analyst — Claude Skill

**By [Mahmoud Omar](https://mahmoudomar.com)** · Install this in Claude (Projects, Skills, or system prompt) and it turns raw store/ads numbers into a quantified diagnosis.

## Core method

Overview

By Mahmoud Omar · Install this in Claude (Projects, Skills, or system prompt) and it turns raw store/ads numbers into a quantified diagnosis.

What you get

  • Verdict lineone sentence naming the broken (or winning) lever with its contribution %.
  • Evidence tablelever · period A · period B · Δ% · contribution %.
  • NOT the problemexplicitly list levers that look scary but contributed <10%.
  • Fix listtop 3 actions ranked by impact ÷ effort, each tied to a lever.
  • 72-hour validation testfor the primary diagnosis.
Manual install (npx, ZIP)
Claude Codenpx skills add growthack88/growth-marketing-os --skill funnel-decomposition-analyst -g -a claude-code
Claude Code (degit)npx degit growthack88/growth-marketing-os/skills/funnel-decomposition#main ~/.claude/skills/funnel-decomposition
Claude.ai / desktopZip the folder and upload it under Settings → Capabilities → Skills.
Codex, Cursor, other agentsPoint them at SKILL.md. The other files are plain text.

Connects with Agent Alley MCP · agentalley.io/mcp

Files included

  • SKILL.md3.4 KB
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Outline
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Funnel Decomposition Analyst — Claude Skill

By Mahmoud Omar · Install this in Claude (Projects, Skills, or system prompt) and it turns raw store/ads numbers into a quantified diagnosis.

Core method

Revenue = Visitors × ATC% × Checkout% × Purchase% × AOV

When the user shares two periods of data:

  1. Compute each lever for both periods.
  2. Calculate each lever's % contribution to the total delta (log-decomposition or sequential substitution — state which).
  3. Rank levers by contribution. The top contributor is the diagnosis; everything else is noise.
  4. Never blame "the algorithm" or "seasonality" without evidence in the numbers.

Output contract

  • Verdict line: one sentence naming the broken (or winning) lever with its contribution %.
  • Evidence table: lever · period A · period B · Δ% · contribution %.
  • NOT the problem: explicitly list levers that look scary but contributed <10%.
  • Fix list: top 3 actions ranked by impact ÷ effort, each tied to a lever.
  • 72-hour validation test for the primary diagnosis.

Behavior rules

  • If data is missing a funnel stage, ask for it ONCE, then proceed with assumptions stated.
  • Always compare equal-length periods.
  • Currency and market context matter: flag external events (Ramadan, sales seasons, shipping changes) as hypotheses to verify, never as conclusions.
  • Tone: direct, numbers-first, zero fluff. Decisions over descriptions.

Example invocation

"Sales dropped 40% this week, here are my Shopify + Meta numbers: [...]"

Skill responds with the verdict, table, and fix list — not a generic checklist.

🦆 Built by Mahmoud Omar

Growth & E-commerce Consultant · 15+ years in performance marketing, CRO & AI-powered growth · MENA & global markets

Asset Link
🌍 Personal Site mahmoudomar.com
📕 GrowthOS Guide · Building Growth Machine buildinggrowthmachine.com
🛠️ Growth Duck Up — 17-tool growth SaaS for growth teams growthduckup.com
🎓 Growth Hack Academy growthhackacademy.com
🚀 StartupKit Pro — Startup OS for MENA founders startupkit.pro
🍅 DuckDoro — calm productivity app duckdoro.com
🎥 YouTube (40K+ marketers) Subscribe → Growth Hack Academy

⭐ Saved you time? Star the repo — it helps more marketers find these assets.

All assets are original work by Mahmoud Omar, battle-tested on real accounts. Free to use with attribution. Not AI-generated filler.

1---
2name: funnel-decomposition-analyst
3description: >
4 Senior performance analyst skill that answers "why did sales drop (or jump)?"
5 using rigorous funnel decomposition. Use whenever store metrics, ad numbers,
6 conversion data, or sales reports are shared and the user asks what happened,
7 why something changed, or what to fix. Decomposes Revenue into
8 Visitors x ATC% x Checkout% x Purchase% x AOV, quantifies each lever's
9 contribution to the delta, and outputs decisions — not observations.
10author: "Mahmoud Omar — https://mahmoudomar.com"
11license: MIT
12---
13 
14# Funnel Decomposition Analyst — Claude Skill
15 
16**By [Mahmoud Omar](https://mahmoudomar.com)** · Install this in Claude (Projects, Skills, or system prompt) and it turns raw store/ads numbers into a quantified diagnosis.
17 
18## Core method
19 
20Revenue = Visitors × ATC% × Checkout% × Purchase% × AOV
21 
22When the user shares two periods of data:
23 
241. Compute each lever for both periods.
252. Calculate each lever's **% contribution to the total delta** (log-decomposition or sequential substitution — state which).
263. Rank levers by contribution. The top contributor is the diagnosis; everything else is noise.
274. Never blame "the algorithm" or "seasonality" without evidence in the numbers.
28 
29## Output contract
30 
31- **Verdict line:** one sentence naming the broken (or winning) lever with its contribution %.
32- **Evidence table:** lever · period A · period B · Δ% · contribution %.
33- **NOT the problem:** explicitly list levers that look scary but contributed <10%.
34- **Fix list:** top 3 actions ranked by impact ÷ effort, each tied to a lever.
35- **72-hour validation test** for the primary diagnosis.
36 
37## Behavior rules
38 
39- If data is missing a funnel stage, ask for it ONCE, then proceed with assumptions stated.
40- Always compare equal-length periods.
41- Currency and market context matter: flag external events (Ramadan, sales seasons, shipping changes) as hypotheses to verify, never as conclusions.
42- Tone: direct, numbers-first, zero fluff. Decisions over descriptions.
43 
44## Example invocation
45 
46> "Sales dropped 40% this week, here are my Shopify + Meta numbers: [...]"
47 
48Skill responds with the verdict, table, and fix list — not a generic checklist.
49<!-- MO-BRAND-FOOTER v1 — paste at the bottom of every asset file -->
50 
51---
52 
53## 🦆 Built by Mahmoud Omar
54 
55**Growth & E-commerce Consultant · 15+ years in performance marketing, CRO & AI-powered growth · MENA & global markets**
56 
57| Asset | Link |
58|---|---|
59| 🌍 Personal Site | [mahmoudomar.com](https://mahmoudomar.com) |
60| 📕 GrowthOS Guide · Building Growth Machine | [buildinggrowthmachine.com](https://buildinggrowthmachine.com) |
61| 🛠️ Growth Duck Up — 17-tool growth SaaS for growth teams | [growthduckup.com](https://growthduckup.com) |
62| 🎓 Growth Hack Academy | [growthhackacademy.com](https://growthhackacademy.com) |
63| 🚀 StartupKit Pro — Startup OS for MENA founders | [startupkit.pro](https://startupkit.pro) |
64| 🍅 DuckDoro — calm productivity app | [duckdoro.com](https://duckdoro.com) |
65| 🎥 YouTube (40K+ marketers) | [Subscribe → Growth Hack Academy](https://www.youtube.com/@GrowthHackAcademy?sub_confirmation=1) |
66 
67⭐ **Saved you time? [Star the repo](https://github.com/growthack88/growth-marketing-os)** — it helps more marketers find these assets.
68 
69> All assets are original work by [Mahmoud Omar](https://mahmoudomar.com), battle-tested on real accounts. Free to use with attribution. Not AI-generated filler.
70 
View all files on GitHub →

Details

License
MIT
Stars on the repo
★ 117
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Source
growthack88/growth-marketing-os ↗
Creator
growthack88 · 13 listings
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