{"uid":"cap_fzlNJMFSGfLjzejmtl0MJ","slug":"offline-native-box-model-layer-area-ledger-5a27d18c","name":"Offline Native Box Model Layer Area Ledger","description":"A component sizing agent needs the measured area allocation between content, padding, border and signed margin footprints in the offline rendering.","url":"https://detect.halowerk.com/u/offline-native-box-model-layer-area-ledger?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","format":"uri","maxLength":2048}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_A93yqDx3NV-yV6ZQ28ykm","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes the measured area allocation across content, padding, border, and margin regions of an element's box model in an offline (headless) rendering context.","exampleAgentPrompt":"Can you measure the CSS box model area breakdown — content, padding, border, and margin — for the page at https://example.com/widget using offline rendering?","exampleUseCases":[{"title":"Component sizing agent layout audit","prompt":"I need the full box model area breakdown — content zone, padding, border, and signed margin footprint — for the component rendered at https://app.example.com/dashboard/card in headless mode."},{"title":"CSS refactor margin impact check","prompt":"Before I refactor these styles, can you give me the area ledger showing how much of the total footprint is margin versus content for the page at https://staging.mysite.com/hero-section in offline rendering?"},{"title":"Design system padding budget analysis","prompt":"Can you measure how much area the padding and border layers consume versus the actual content region at https://design.example.com/components/button, using offline native box model measurement?"}],"resultDescription":"Returns a structured area ledger breaking down the measured pixel-area allocations for each CSS box model layer — content, padding, border, and signed margin — as computed in an offline (headless) native rendering pass for the given URL.","failureModes":["Invalid or unreachable URL returns an error indicating the resource could not be fetched","URL pointing to non-HTML content may produce empty or null layer measurements","Pages with dynamic JavaScript-driven layout may yield incomplete results in offline rendering","Malformed URI format causes input validation failure","Very large or complex pages may time out during offline rendering"],"whenToPreferThis":"Use this endpoint when you need precise, per-layer CSS box model area measurements (content, padding, border, margin) computed in an offline or headless rendering context, without spinning up a full interactive browser session. Ideal for component sizing agents, layout auditing pipelines, and CSS refactoring tools that require deterministic area accounting rather than live browser inspection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-04T06:40:52.153Z","isFirstParty":false,"canonicalSlug":"offline-native-box-model-layer-area-ledger-5a27d18c"}