{"service":"Penny Engine","version":"0.8.6","examples":[{"name":"penny_margin","input":{"price":35,"variableCost":20,"fixedCost":120},"output":{"unitProfitUsd":15,"grossMarginPct":42.86,"markupPct":75,"breakEvenUnits":8,"currency":"USD"}},{"name":"penny_cleaning_quote","input":{"hours":3,"hourlyWage":18,"targetMarginPct":30},"output":{"costPerVisitUsd":79.8,"suggestedQuoteUsd":114,"targetMarginPct":30,"currency":"USD","note":"Illustrative, verify taxes, insurance and travel."}},{"name":"penny_marketplace_profit","input":{"salePrice":28,"productCost":11,"shippingCost":4},"output":{"grossRevenueUsd":28,"feesUsd":2.8,"estimatedContributionUsd":10.2,"contributionMarginPct":36.43,"currency":"USD","note":"Excludes tax and returns."}},{"name":"penny_target_price","input":{"cost":12,"feePct":12,"targetMarginPct":30},"output":{"minimumPriceUsd":20.69,"currency":"USD","targetMarginPct":30}},{"name":"penny_campaign_economics","input":{"costPerClick":0.8,"conversionRatePct":3,"contributionPerOrderUsd":45},"output":{"estimatedCustomerAcquisitionCostUsd":26.67,"contributionAfterAcquisitionUsd":18.33,"breakEvenCostPerClickUsd":1.35,"note":"Uses supplied conversion rate; not a prediction.","currency":"USD"}},{"name":"penny_subscription_ltv","input":{"pricePerMonth":15,"monthlyChurnPct":5,"acquisitionCostUsd":30},"output":{"grossProfitMonthlyUsd":12,"expectedLifetimeMonths":20,"simpleGrossProfitLtvUsd":240,"ltvAfterAcquisitionUsd":210,"currency":"USD","note":"Simplified constant churn model, not a prediction."}},{"name":"penny_url_clean","input":{"url":"https://example.com/item?utm_source=agent&id=42"},"output":{"cleanUrl":"https://example.com/item?id=42","fetched":false}},{"name":"penny_slugify","input":{"text":"AI Agent Tools and Price Insights!"},"output":{"slug":"ai-agent-tools-and-price-insights"}},{"name":"penny_json_inspect","input":{"text":"{\"item\":\"demo\",\"price\":12}"},"output":{"valid":true,"topLevelType":"object","topLevelElements":2,"minifiedBytes":26}},{"name":"penny_html_extract","input":{"html":"<html><head><title>Example Widget</title><meta name=\"description\" content=\"Widget details\"></head><body><h1>Product overview</h1></body></html>"},"output":{"title":"Example Widget","description":"Widget details","canonical":null,"meta":{"description":"Widget details"},"headings":["Product overview"],"jsonLd":[],"jsonLdParseErrors":0,"source":"supplied-html-only","fetched":false,"note":"Does not fetch pages or run scripts; extraction is best-effort."}},{"name":"penny_csv_to_json","input":{"csv":"name,price\nWidget,12\nGadget,8"},"output":{"count":2,"columns":["name","price"],"records":[{"name":"Widget","price":"12"},{"name":"Gadget","price":"8"}],"note":"Values remain strings, no CSV formulas executed, output is not persisted."}},{"name":"penny_catalog_audit","input":{"items":[{"sku":"A1","name":"Widget","price":25,"cost":10,"shippingCost":3,"feePct":10,"url":"https://example.com/item?utm_source=bot&id=1"},{"sku":"A2","name":"Gadget","price":12,"cost":7,"shippingCost":3,"feePct":10}],"targetMarginPct":25},"output":{"count":2,"ready":1,"review":1,"invalid":0,"targetMarginPct":25,"items":[{"index":0,"sku":"A1","name":"Widget","slug":"widget","url":"https://example.com/item?id=1","estimatedContributionUsd":9.5,"estimatedMarginPct":38,"status":"ready","errors":[],"warnings":[]},{"index":1,"sku":"A2","name":"Gadget","slug":"gadget","url":null,"estimatedContributionUsd":0.8,"estimatedMarginPct":6.67,"status":"review","errors":[],"warnings":["below_target_margin"]}],"notes":["Uses user-supplied data only; no live marketplace fee checks.","No network fetch or persistence. Estimates exclude taxes, refunds and other costs."]}}],"note":"Samples are calculated from illustrative inputs; not actual sales or prices."}