Passed 16 of 22 test cases with the skill, and 10 of 22 without it.
Without skill45%
With skill73%
Checks it passed that the model alone missed
The profitability metrics section compares user net margin against industry benchmark percentages.
The Amazon fee structure table explicitly includes Removal/Disposal Fees alongside FBA Fulfillment Fees.
The net revenue calculation explicitly subtracts promotional discounts and returns/refunds from gross sales.
and 5 more in the full report
7 fixed9 passed either way5 still failing1 broke
Pass-rate lift
+27 pp
Tokens
+82%
Agent turns
0%
Response time
+3%
Model gemini-3.6-flashMeasured 8/20/2026v116 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 7
Prompt
I sell a bamboo cutting board on Amazon US for $28.00. My COGS is $6.50 per unit, inbound shipping is $1.20, monthly PPC spend is $900 with a 22% ACoS, and my return rate is around 4%. Please generate a comprehensive Amazon Profit Analysis Report for this item. I need a full financial breakdown containing a Revenue Waterfall Analysis covering gross sales, FBA/referral fees, and ad spend, a True Profitability Assessment with net profit calculations and category benchmarks, actionable Profit Optimization Opportunities categorized by timeframe, an Action Plan & Implementation checklist, and 90-day ROI Projections.
What was checked, without and with the skill
Checked
Without skill
With skill
The report calculates Net Profit by subtracting Amazon fees, PPC ad spend, direct COGS, and operating expenses from gross sales revenue.
Passed
Passed
The response includes a breakdown of Amazon fee types detailing Referral Fees, FBA Fulfillment Fees, and Monthly Storage Fees.
Missed
Passed
case-01 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md294 linessingle file
Amazon Profit Analyzer 💰
Complete profit analysis and optimization framework for Amazon sellers. Uncover true profitability and maximize margins.