Skip to content
ApproachFind the leak · Fix the system · Scale what works→
MarketAtoms

FreeOpen sourceRead-only

40 Claude Skills for E-commerce

Find where your Shopify store is losing money: ads, conversion, retention and profit.

The skills read your data. They never change it.
  • Read-only
  • Says “needs data” instead of guessing
  • Open source (MIT)
  • Built from the checks we run on client stores

[ How it works ]

Three steps, no new software

  1. 01Export or connect your dataDownload the exports a skill asks for from Shopify, Meta, Google, GA4 or Klaviyo. Live data via the MarketAtoms MCP is in a private pilot.
  2. 02Give a skill to ClaudeUpload its ZIP to the Claude app, install the library in Claude Code, or paste a SKILL.md into any chat.
  3. 03Get the leak, the money at stake and what to fix firstEach skill names the leak, estimates what it costs, and says what to do first. Thin data gets “needs data”, not a guess.

[ The library ]

8 folders, 5 skills each

Every skill answers one question about where the money goes. Open a folder in the tree and pick a skill to jump to it.

marketatoms-ecommerce-claude-skills

marketatoms-ecommerce-claude-skills/

  • 01-meta-adsMeta ads
    • wasted-ad-spend-leakWhich ad sets and search terms spent money and sold nothing?
    • stockout-ad-spend-leakWhich ads are sending people to products that are sold out, or about to be?
    • creative-fatigue-leakWhich ads have worn out - seen too often, clicked less than in their first week?
    • placement-spend-leakWhich placements buy purchases at double the account's cost or more?
    • audience-saturation-leakWhich audiences are running out, with frequency and CPM both climbing?
  • 02-google-shoppingGoogle Shopping
    • feed-zero-impressions-leakWhich approved, in-stock products got zero impressions for 14 days?
    • product-disapproval-leakWhich products have been disapproved by Merchant Center, and what do they normally sell?
    • shopping-product-roas-leakWhich Shopping products return less than half the target ROAS?
    • branded-search-share-leakHow much of Google's ROAS comes from people already searching for the store?
    • price-competitiveness-leakWhich products are priced well above what other sellers charge on Google?
  • 03-trackingTracking
    • tracking-gap-leakDo Meta and Google report the same sales Shopify recorded?
    • utm-coverage-leakHow many orders arrive with no source, and which ads have no UTMs?
    • conversion-value-mismatch-leakDo the platforms attach the right value to each purchase?
    • ga4-order-gap-leakDoes GA4 count the same orders as Shopify?
    • google-conversion-action-leakIs Google Ads counting purchases twice, or optimising for the wrong action?
  • 04-conversionConversion
    • checkout-drop-leakWhich step between cart and payment started losing people?
    • mobile-conversion-gap-leakHow many orders are lost because the store converts badly on phones?
    • product-page-conversion-leakWhich product pages get views but no add-to-carts?
    • site-search-leakWhat do shoppers search for and not find?
    • traffic-source-conversion-leakWhich traffic sources send visitors who rarely buy?
  • 05-basket-pricingBasket and pricing
    • basket-value-gap-leakHow many orders stop just short of free shipping, and how many are single items?
    • discount-leakHow much do codes give away, and has a private code leaked to coupon sites?
    • cross-sell-pair-leakWhich products do customers already buy together, and aren't bundled yet?
    • price-change-leakDid the last price change earn or cost money?
    • markdown-depth-leakHas the “sale” price quietly become the real price?
  • 06-retentionRetention
    • second-order-gap-leakHow many first-time buyers come back, and which first products lead nowhere?
    • abandoned-checkout-recovery-leakDo checkout abandoners get a reminder, and does it bring them back?
    • email-flow-coverage-leakAre the five core email flows live, or does email depend on campaigns?
    • lapsed-customer-leakHow many repeat buyers have gone quiet, and what did they spend before?
    • email-list-health-leakAre bounces, unsubscribes or the Gmail spam rate putting the inbox at risk?
  • 07-profit-opsProfit and operations
    • contribution-margin-leakAfter product cost, shipping, fees, refunds and ads, what is actually left?
    • refund-and-return-leakHow much revenue comes back, from which products, and how much does it inflate ROAS?
    • shipping-cost-recovery-leakHow much of every shipping bill does the store pay itself?
    • dead-stock-leakWhich SKUs haven't sold in 90 days, and how much cash is sitting in them?
    • low-margin-sku-leakWhich products sell well but leave too little after product cost?
  • 08-reportingReporting
    • weekly-revenue-leak-readoutOf everything found this week, what are the 3 things to do first?
    • daily-revenue-pulseWas yesterday normal, or is something broken?
    • monthly-revenue-leak-reviewWhat changed this month, what was fixed, what is still open?
    • channel-performance-scorecardWhich channel works, judged on Shopify's numbers?
    • leak-fix-trackerDid the fix actually work?

[ See one run ]

Ask a question, get the leak and the next step

Not a dashboard. A short answer: the numbers, a verdict, and what to do first.

ClaudeExample with made-up data

Run tracking-gap-leak on my October orders export.

Here's the tracking gap for October, checked against Shopify:

tracking-gap-leak · Octoberpurchases

  • Meta, reported purchases92
  • Shopify, recorded orders70
  • Gap+31% over-reporting
  • Verdictreconcile

Next: don't scale Meta budget on these numbers until the gap is fixed.

[ The leak map ]

Where each folder looks for money

Follow a customer from the ad click to the second order. Each folder is pinned to the step it checks.

  • Meta ads
  • Google Shopping
  • Tracking
  • Conversion
  • Basket and pricing
  • Retention
  • Profit and operations
  • Reporting
  1. 01Ad click
    • Meta ads
    • Google Shopping
    • Tracking
  2. 02Product page
    • Conversion
  3. 03Checkout
    • Basket and pricing
  4. 04Order
    • Profit and operations
  5. 05Second order
    • Retention
Reportingreads every step: daily, weekly and monthly reports.

[ Install ]

Three ways to use them

Pick the one that fits how you already use Claude.

Get the library to see the install steps →

[ Why these are different ]

Built to find money, not to look busy

Most AI ad tools

These skills

  • Ads only

    The whole store: ads, tracking, conversion, basket, retention and profit

  • Guesses on thin data

    Says “needs data” and names the export it needs

  • Can change your ads

    Read-only. Every change is your decision

[ FAQ ]

Straight answers

  • Yes. All 40 skills are free and open source under the MIT licence. We ask for your email to send you the library and the occasional new resource. You can unsubscribe anytime.

Get the 40 skills

Free and open source. You'll get the GitHub link and the install steps straight away.

Want us to run them on your store? Book a free Revenue Leak Audit