{"uid":"cap_K0zY-IdfeVAPA-k6zi01H","slug":"articles-invisible-character-flags-ea06f78e","name":"Articles — Invisible Character Flags","description":"Articles — Invisible character flags: Invisible character flags for Articles. One public HTTPS page or supplied HTML; static parsing, no JavaScript rendering, login or access bypass. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded invisible character flags result.","url":"https://market.datapackvibe.com/x402/assistant-bx-web-articles-unicode?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","default":"","maxLength":2048},"html":{"type":"string","default":"<!doctype html><html><head></head><body><article id=\"sample\" data-kind=\"example\">Example product guide</article></body></html>","maxLength":100000},"term":{"type":"string","default":"product","maxLength":100,"minLength":1},"attribute":{"type":"string","default":"id","pattern":"^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$","maxLength":50},"previous_texts":{"type":"array","items":{"type":"string","default":"","maxLength":1000},"default":["Older example"],"maxItems":200,"minItems":0},"attribute_value":{"type":"string","default":"sample","maxLength":200}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vxAohme2LRjqccWWQUAo8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Detects and flags invisible Unicode characters within article elements on a web page or supplied HTML snippet.","exampleAgentPrompt":"Can you scan the article on https://example.com/blog/my-post for any invisible Unicode characters — look inside the element with id 'main-article' and compare against these previous versions of the text?","exampleUseCases":[{"title":"Detecting hidden characters in published articles","prompt":"Check this article page at https://news-site.com/article/breaking-story for any invisible Unicode characters hiding inside the article tag with attribute class set to 'post-content' — I want to know if someone has embedded hidden characters in the published text."},{"title":"Verifying clean copy before republishing","prompt":"I'm about to republish this HTML snippet — can you scan it for invisible Unicode characters in the article element with id 'republish-body' before I post it? Here's the HTML: <!doctype html><html><body><article id='republish-body'>Our updated policy guide...</article></body></html>"},{"title":"Auditing UGC article submissions for steganographic characters","prompt":"A user submitted an article with the term 'policy' in it — I need you to flag any invisible Unicode characters inside the element with attribute data-kind equal to 'submission' from this HTML before we approve it for publication."}],"resultDescription":"Returns a bounded result set identifying any invisible or non-printable Unicode characters found within the targeted article element of the provided URL or HTML, including their positions and character types, based on static HTML parsing without JavaScript rendering.","failureModes":["URL is behind a login or paywall — endpoint cannot bypass authentication, returns empty or error","JavaScript-rendered content not parsed — dynamically injected article text will be missed","HTML exceeds 100,000 character limit — request rejected","URL is unreachable or returns non-200 status — fetch fails","Attribute pattern mismatch — attribute field must match ^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$ or request is rejected","Term field empty or missing — minLength of 1 enforced, blank term causes validation error"],"whenToPreferThis":"Choose this endpoint when you need to detect invisible or hidden Unicode characters specifically within article-type HTML elements on a public web page or a provided HTML string, without requiring JavaScript rendering or authentication. It is well-suited for content integrity checks, pre-publication audits, and detecting steganographic or formatting anomalies in article text. Prefer alternatives if you need full-page Unicode scanning outside article elements or JavaScript-rendered content analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T00:52:30.241Z","isFirstParty":false,"canonicalSlug":"articles-invisible-character-flags-ea06f78e"}