[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M6GY082GNX0RT6SSFGEJBZYF":3,"skill-same:01M6GY082GNX0RT6SSFGEJBZYF":79},{"skillNo":4,"name":5,"nameZh":6,"description":7,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":16,"sourceHtmlUrl":17,"categories":18,"keywords":19,"publishedAt":37,"linkOnly":38,"markdownContent":39,"markdownBody":40,"frontMatter":41,"refName":42,"commitSha":43,"skillDirectory":44,"forksCount":45,"repositoryHtmlUrl":46,"repositoryHomepageUrl":6,"ownerHtmlUrl":47,"ownerBlogUrl":48,"ownerDescription":49,"updatedAt":50,"install":51,"resources":64},"01M6GY082GNX0RT6SSFGEJBZYF","compute-break-even-units",null,"Use when asked how many units or how much sales cover the cost base. Computes break-even from fixed cost and contribution margin, adds a target profit, and reports the margin of safety.","jiayaoqijia\u002Fcryptoskill","jiayaoqijia","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F1453879?v=4","01M6GMYTX7Q7S504VC6E756ENR","YQ","01M6GMYV1QKJ1CC75MTTGT9PR0",81,"MIT","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-compute-break-even-units\u002FLICENSE","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-compute-break-even-units\u002FSKILL.md",[],[20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36],"break","compute break even units","units","compute","base","Break-Even","when","profit","cover","contribution","Safety","reports","cost","use","margin","sales","how","2026-11-10 10:12:30",false,"---\nname: compute-break-even-units\ndescription: Use when asked how many units or how much sales cover the cost base. Computes break-even from fixed cost and contribution margin, adds a target profit, and reports the margin of safety.\n---\n\n# Compute break-even units\n\nBreak-even is the volume where contribution exactly pays the fixed base. It converts a cost structure into a sales target and exposes how much cushion the plan actually has.\n\n## Procedure\n\n1. Total the fixed cost for the period: rent, salaried payroll, software, the fixed platform fee. Say $84,000 a month.\n2. Get contribution margin per unit: price minus variable cost. $20.00 - $12.00 = $8.00.\n3. Break-even units = fixed cost \u002F contribution per unit.\n\n       ```\n       python3 -c \"from decimal import Decimal as D; print(D('84000')\u002FD('8'))\"\n       # 10500.0 units\n       ```\n\n4. Break-even revenue = break-even units * price = 10,500 * 20 = $210,000, or equivalently fixed \u002F contribution ratio = 84,000\u002F0.40.\n5. Add a target profit: units = (fixed + target) \u002F contribution. For $30,000 of profit: (84,000+30,000)\u002F8 = 14,250 units.\n6. Compute the margin of safety = (expected units - break-even units) \u002F expected units. At 14,000 expected against 10,500 break-even, safety is 25%.\n7. Stress the two inputs together. A 10% price cut raises break-even by the same share as the margin lost and is the most common way a plan misses.\n8. Round up, never down, when a plan needs a whole number of units to cover cost: 10,500 covers, 10,499 does not.\n9. Keep variable cost per unit in integer minor units so the division has a stated rounding rule; a float contribution reassigns the rounding to the wrong side.\n10. Re-state break-even whenever price or fixed cost changes. It is a living target, not an annual figure.\n\n## Pitfalls\n\n- Dividing by gross margin instead of contribution margin.\n- Forgetting that a price cut lowers the contribution the fixed base is divided by.\n- Rounding break-even units down and leaving the plan a unit short of covering cost.\n- Treating a step cost as fixed past the volume where it steps up.\n- Using last period's variable cost after an input change.\n- Float contribution that reassigns the rounding of the break-even unit.\n\n## Verification\n\n    ```\n    python3 -c \"from decimal import Decimal as D; print(D('84000')\u002FD('8'))\"\n    # 10500.0 -> 10,500 units cover $84,000 fixed at $8.00 contribution\n    ```\n\nPass when fixed cost, contribution per unit and both break-even figures are shown. Report break-even units, break-even revenue, and the margin of safety at the planned volume.\n","# Compute break-even units\n\nBreak-even is the volume where contribution exactly pays the fixed base. It converts a cost structure into a sales target and exposes how much cushion the plan actually has.\n\n## Procedure\n\n1. Total the fixed cost for the period: rent, salaried payroll, software, the fixed platform fee. Say $84,000 a month.\n2. Get contribution margin per unit: price minus variable cost. $20.00 - $12.00 = $8.00.\n3. Break-even units = fixed cost \u002F contribution per unit.\n\n       ```\n       python3 -c \"from decimal import Decimal as D; print(D('84000')\u002FD('8'))\"\n       # 10500.0 units\n       ```\n\n4. Break-even revenue = break-even units * price = 10,500 * 20 = $210,000, or equivalently fixed \u002F contribution ratio = 84,000\u002F0.40.\n5. Add a target profit: units = (fixed + target) \u002F contribution. For $30,000 of profit: (84,000+30,000)\u002F8 = 14,250 units.\n6. Compute the margin of safety = (expected units - break-even units) \u002F expected units. At 14,000 expected against 10,500 break-even, safety is 25%.\n7. Stress the two inputs together. A 10% price cut raises break-even by the same share as the margin lost and is the most common way a plan misses.\n8. Round up, never down, when a plan needs a whole number of units to cover cost: 10,500 covers, 10,499 does not.\n9. Keep variable cost per unit in integer minor units so the division has a stated rounding rule; a float contribution reassigns the rounding to the wrong side.\n10. Re-state break-even whenever price or fixed cost changes. It is a living target, not an annual figure.\n\n## Pitfalls\n\n- Dividing by gross margin instead of contribution margin.\n- Forgetting that a price cut lowers the contribution the fixed base is divided by.\n- Rounding break-even units down and leaving the plan a unit short of covering cost.\n- Treating a step cost as fixed past the volume where it steps up.\n- Using last period's variable cost after an input change.\n- Float contribution that reassigns the rounding of the break-even unit.\n\n## Verification\n\n    ```\n    python3 -c \"from decimal import Decimal as D; print(D('84000')\u002FD('8'))\"\n    # 10500.0 -> 10,500 units cover $84,000 fixed at $8.00 contribution\n    ```\n\nPass when fixed cost, contribution per unit and both break-even figures are shown. Report break-even units, break-even revenue, and the margin of safety at the planned volume.\n",{"name":5,"description":7},"main","3df1d0d67b30ff15236561f8c0f9f06d33f42dfd","skills\u002Fpayments\u002F0xklen-compute-break-even-units",17,"https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia","https:\u002F\u002Feth2030.com","Hardcore infra. Building @alt-research and applied cryptography.","2026-11-14 02:27:51",{"source":8,"skillName":5,"commands":52,"prompt":62,"zipAvailable":63},[53,56,59],{"tool":54,"command":55},"npx","npx skills add jiayaoqijia\u002Fcryptoskill --skill compute-break-even-units",{"tool":57,"command":58},"bunx","bunx skills add jiayaoqijia\u002Fcryptoskill --skill compute-break-even-units",{"tool":60,"command":61},"pnpm","pnpm dlx skills add jiayaoqijia\u002Fcryptoskill --skill compute-break-even-units","安装技能，技能地址：https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-compute-break-even-units\u002FSKILL.md",true,[65,69,75],{"path":66,"resourceType":66,"resourceTypeDesc":67,"sizeBytes":68,"sourceHtmlUrl":16},"LICENSE","许可证",1063,{"path":70,"resourceType":71,"resourceTypeDesc":72,"sizeBytes":73,"sourceHtmlUrl":74},"SOURCE.md","REFERENCE","参考文档",350,"https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-compute-break-even-units\u002FSOURCE.md",{"path":76,"resourceType":71,"resourceTypeDesc":72,"sizeBytes":77,"sourceHtmlUrl":78},"TRUST.auto.yaml",2217,"https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-compute-break-even-units\u002FTRUST.auto.yaml",[80,108,131,149,162,172],{"skillNo":81,"name":82,"nameZh":6,"description":83,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":84,"sourceHtmlUrl":85,"categories":86,"keywords":87,"publishedAt":37},"01M712C436EQYE43342Q4E7GG1","recipe-performance","Diagnose a specific MetaMask user flow's real-app performance and Sentry critical-user-flow telemetry with deterministic mm-harness recipes. Use for CUF boundaries, cold\u002Fwarm\u002Fbackground-resume behavior, latency regressions, lifecycle tags, duplicate or blocking network requests, long tasks, layout\u002Fpaint cost, screen redraws, React rerenders, or browser trace analysis where tests alone cannot prove the real app.","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fwallets\u002Fmetamask-official-recipe-performance\u002FLICENSE","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fwallets\u002Fmetamask-official-recipe-performance\u002FSKILL.md",[],[88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107],"performance","recipe 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keys.","Apache-2.0","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fexchanges\u002Fmncrftfrcnm-mexc-spot-websocket\u002FLICENSE","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fexchanges\u002Fmncrftfrcnm-mexc-spot-websocket\u002FSKILL.md",[],[117,118,119,120,121,122,123,124,125,126,127,128,129,130],"mexc spot websocket","spot","websocket","api","workflows","public","listen","streams","depth","keys","for","api keys","maintenance","protobuf",{"skillNo":132,"name":133,"nameZh":6,"description":134,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":112,"licenseFileUrl":135,"sourceHtmlUrl":136,"categories":137,"keywords":138,"publishedAt":37},"01M70XT0MBXN3WZY1BKN0CPNKR","mexc-spot-rest","MEXC Spot REST workflows for public data, signed account requests, orders, wallet\u002Fadmin actions, and secure signing without exposing API keys.","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fexchanges\u002Fmncrftfrcnm-mexc-spot-rest\u002FLICENSE","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fexchanges\u002Fmncrftfrcnm-mexc-spot-rest\u002FSKILL.md",[],[139,118,140,141,142,143,144,128,127,126,145,146,147,122,148,121,120],"mexc spot rest","REST","admin","signing","Wallet","requests","actions","secure","data","orders",{"skillNo":150,"name":151,"nameZh":6,"description":152,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":112,"licenseFileUrl":153,"sourceHtmlUrl":154,"categories":155,"keywords":156,"publishedAt":37},"01M70XSYSVZ2N0N91XCAR2CAK0","mexc-futures-websocket","MEXC Futures WebSocket workflows for public streams, private account\u002Forder\u002Fposition streams, ping\u002Fpong, subscriptions, and depth maintenance.","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fexchanges\u002Fmncrftfrcnm-mexc-futures-websocket\u002FLICENSE","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fexchanges\u002Fmncrftfrcnm-mexc-futures-websocket\u002FSKILL.md",[],[157,158,119,159,160,129,127,161,125,124,122,121],"mexc futures websocket","futures","position","ping","subscriptions",{"skillNo":163,"name":164,"nameZh":6,"description":6,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":165,"sourceHtmlUrl":166,"categories":167,"keywords":168,"publishedAt":37},"01M6H0ZWHVE5W04WG2DKQE2SQC","0xklen-version-and-refresh-sanctions-lists","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-version-and-refresh-sanctions-lists\u002FLICENSE","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-version-and-refresh-sanctions-lists\u002FSKILL.md",[],[169,170,171],"refresh","0xklen version and refresh sanctions lists","version",{"skillNo":173,"name":174,"nameZh":6,"description":175,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":176,"sourceHtmlUrl":177,"categories":178,"keywords":179,"publishedAt":37},"01M6H0Z28Q3R8J0S799GJQWXM3","verify-tests-cover-changed-lines","Use when a PR adds code that the existing suite may not exercise. Measures patch coverage — the share of newly changed lines hit by tests — before approving.","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-verify-tests-cover-changed-lines\u002FLICENSE","https:\u002F\u002Fgithub.com\u002Fjiayaoqijia\u002Fcryptoskill\u002Fblob\u002Fmain\u002Fskills\u002Fpayments\u002F0xklen-verify-tests-cover-changed-lines\u002FSKILL.md",[],[180,28,181,182,183,184,185,33,186,187,188],"tests","verify tests cover changed lines","verify","coverage","pr","exercise","patch","code","share"]