Parse OpenAPI document [fail]! OpenAPI candidate was not parseable as JSON or YAML-like OpenAPI.INFOParse OpenAPI document status="fail"INFOParse selected document as JSON first, then YAML-like OpenAPI parsed=false format="unknown" versionFamily="missing"FAILCheck parse result actual="not parseable" expected="parseable OpenAPI 3.x or Swagger 2.0 document" compatibleContentType=falseFAILOpenAPI candidate was not parseable as JSON or YAML-like OpenAPI.Validate OpenAPI shape [fail]! Response is not valid JSON and does not match baseline OpenAPI YAML shape.INFOValidate OpenAPI shape status="fail"INFOValidate required OpenAPI shape versionFamily="missing" pathCount=0 webhookCount=0 operationCount=0PASSCheck operations define responses actual=0 expected="every operation should define responses"FAILCheck info metadata actual={"hasInfoTitle":false,"hasInfoVersion":false} expected="info.title and info.version present"FAILOpenAPI shape issue issue="Response is not valid JSON and does not match baseline OpenAPI YAML shape."FAILResponse is not valid JSON and does not match baseline OpenAPI YAML shape.Check machine-usable details [fail]INFOCheck machine-usable details status="fail"INFOInspect machine-usable operation details hasServers=false hasSecuritySchemes=false hasExplicitNoAuth=false requestBodyOperationCount=0 parameterOperationCount=0 responseSchemaOperationCount=0 operationIdCount=0 taggedOperationCount=0 exampleOperationCount=0PASSCheck OpenAPI operations include enough detail for agents to call them safely actual="no machine-usability warnings" expected="servers, auth/no-auth signals, operationIds, parameters, request bodies, responses, tags, and examples where relevant"FAILOpenAPI discovery validation failed.

Find useful Link headers [fail]! No useful agent discovery Link headers were found.INFOFind useful Link headersINFOParse response Link header linkCount=0FAILCompare registered agent-useful relation count actual=0 expected="> 0"FAILCompare community relation count actual=0 expected="accepted as weaker evidence"FAILNo useful agent discovery Link headers were found.Fetch same-origin Link header targets [fail]! Link headers did not expose any same-origin targets to validate.INFOFetch same-origin Link header targetsINFOFetch same-origin Link header targets and record external skipsFAILCompare same-origin Link target failures actual=1 expected=0FAILLink headers did not expose any same-origin targets to validate.

Discover MCP server card [warning]! The MCP server card was found only at a transitional or linked path.INFODiscover MCP server card candidateCount=5INFOBuild MCP server-card candidate list currentPath="/.well-known/mcp-server-card" transitionalPaths=["/.well-known/mcp/server-card.json","/.well-known/mcp/server-cards.json","/mcp.json","/.well-known/mcp.json"] linkedPaths=[]INFOTrying to fetch /.well-known/mcp-server-card url="https://github.com/.well-known/mcp-server-card" source="current"FAIL/.well-known/mcp-server-card did not return a usable server card statusCode=404 contentType="text/plain; charset=utf-8"INFOTrying to fetch /.well-known/mcp/server-card.json url="https://github.com/.well-known/mcp/server-card.json" source="transitional"FAIL/.well-known/mcp/server-card.json did not return a usable server card statusCode=404 contentType="application/json; charset=utf-8"INFOTrying to fetch /.well-known/mcp/server-cards.json url="https://github.com/.well-known/mcp/server-cards.json" source="transitional"FAIL/.well-known/mcp/server-cards.json did not return a usable server card statusCode=404 contentType="application/json; charset=utf-8"INFOTrying to fetch /mcp.json url="https://github.com/mcp.json" source="transitional"PASS/mcp.json returned a successful response statusCode=200 contentType="application/json; charset=utf-8" finalUrl="https://github.com/mcp.json"INFOTrying to fetch /.well-known/mcp.json url="https://github.com/.well-known/mcp.json" source="transitional"FAIL/.well-known/mcp.json did not return a usable server card statusCode=404 contentType="application/json; charset=utf-8"WARNCheck selected card is published at the current well-known path actual="/mcp.json" expected="/.well-known/mcp-server-card" source="transitional" finalUrl="https://github.com/mcp.json"WARNMCP server card was discovered through a transitional or linked path path="/mcp.json" source="transitional" reason="The MCP server card was found only at a transitional or linked path."Validate server-card shape [fail]! The JSON document does not match a recognized MCP server-card profile.INFOValidate server-card shape profile="unknown-json"PASSCheck response body parsed as JSON actual=true expected=truePASSCheck Content-Type is JSON-compatible actual=true expected=trueFAILCheck recognized MCP server-card profile actual="unknown-json" expected="sep-2127-draft" reason="Document does not match a known MCP server-card profile."FAILCheck required card fields are present actual=2 expected=0 missing=["known MCP server-card profile","transport or transports"]PASSCheck MCP server-card uses the current remotes[] profile without legacy compatibility warnings actual="no compatibility warnings" expected="current sep-2127-draft card shape with no legacy compatibility warnings" warnings=[]FAILMCP server-card shape validation failed reason="The JSON document does not match a recognized MCP server-card profile."Validate MCP remotes [fail]! No usable MCP remote transport was declared.INFOValidate MCP remotes remoteCount=0FAILCheck at least one MCP remote is declared actual=0 expected="> 0"PASSCheck invalid remote count actual=0 expected=0 invalidRemotes=[]PASSCheck same-origin remote coverage actual=0 expected=0FAILMCP remote validation failed reason="No usable MCP remote transport was declared."Validate HTTP delivery [warning]! CORS header Access-Control-Allow-Origin is absent.INFOValidate HTTP delivery finalUrl="https://github.com/mcp.json"PASSCheck server card returned HTTP 2xx actual=200 expected="200-299"PASSCheck card is served as JSON actual="application/json; charset=utf-8" expected="application/json or +json"PASSCheck card is served over HTTPS actual="https:" expected="https:"WARNCheck browser-readable CORS header actual="missing" expected="Access-Control-Allow-Origin present"PASSCheck cache header is present actual="max-age=0, private, must-revalidate" expected="Cache-Control present"WARNMCP server-card HTTP delivery has non-blocking issues issues=["CORS header Access-Control-Allow-Origin is absent."] reason="CORS header Access-Control-Allow-Origin is absent."Probe same-origin MCP endpoint [warning]! No MCP remote endpoint could be probed.INFOProbe same-origin MCP endpoint probeCount=0INFOSelecting same-origin unauthenticated MCP remotes for a bounded initialize probeWARNCheck successful initialize probe count actual=0 expected="> 0 when a safe same-origin unauthenticated remote exists" activeProbeCount=0 authBlocked=0WARNMCP endpoint probe could not fully confirm operability reason="No MCP remote endpoint could be probed."

Fetch a sitemap candidate [fail]! No sitemap candidate returned a successful HTTP response.INFOFetch sitemap candidateINFOTrying sitemap candidates in discovery order candidateCount=4INFOTrying to fetch /sitemap.xml url="https://github.com/sitemap.xml"FAIL/sitemap.xml did not return a successful response url="https://github.com/sitemap.xml" statusCode=406INFOTrying to fetch /sitemap.txt url="https://github.com/sitemap.txt"FAIL/sitemap.txt did not return a successful response url="https://github.com/sitemap.txt" statusCode=406INFOTrying to fetch /sitemap_index.xml url="https://github.com/sitemap_index.xml"FAIL/sitemap_index.xml did not return a successful response url="https://github.com/sitemap_index.xml" statusCode=404INFOTrying to fetch /sitemap-index.xml url="https://github.com/sitemap-index.xml"FAIL/sitemap-index.xml did not return a successful response url="https://github.com/sitemap-index.xml" statusCode=404FAILNo sitemap candidate returned HTTP 2xxParse sitemap [fail]! Fetched sitemap content was not a valid sitemap with absolute HTTP(S) URL entries.INFOParse sitemapINFOInspecting fetched sitemap content url="https://github.com/sitemap.xml" contentType="application/xml" statusCode=406FAILCheck sitemap contains at least one URL entry or child sitemap entry actual=0 expected="> 0"PASSCheck loc values are absolute HTTP(S) URLs actual=0 expected=0 invalidLocs=[]FAILFetched content was not a valid sitemap format="unknown"Validate sitemap field quality [fail]! No valid sitemap was available for field-quality validation.INFOValidate sitemap field qualitySKIPSkipped field-quality checks because no valid sitemap was availableValidate URL scope [fail]! No valid sitemap was available for URL scope validation.INFOValidate URL scope origin="https://github.com"INFOChecking listed URLs against the scanned origin hostSKIPSkipped URL-scope checks because no valid sitemap was available

Detect WebMCP runtime API [informational]INFODetect WebMCP runtime API status="informational"INFOProbe rendered browser for WebMCP runtime objects SKIPCheck current W3C runtime API actual="not detected" expected="document.modelContext/registerTool available"INFOWebMCP evidence was recorded for context. status="informational"Probe WebMCP operability [warning]! No WebMCP surface was found to probe.INFOProbe WebMCP operability status="warning"INFORun safe WebMCP operability checks safeProbeOnly=trueWARNCheck usable WebMCP evidence actual=0 expected="at least 1 usable runtime, declarative, annotation, or static manifest signal"WARNWebMCP operability warning warning="No WebMCP surface was found to probe."WARNWebMCP operability warning warning="Conventional WebMCP manifest paths were checked but did not return a valid manifest."WARNNo WebMCP surface was found to probe.Validate declarative WebMCP form tools [informational]! No W3C-style declarative WebMCP form attributes were found.INFOValidate declarative WebMCP form tools status="informational"INFOInspect visible forms and controls for current declarative WebMCP attributes annotatedElements=0 formsWithAttributes=0 controlsWithAttributes=0SKIPValidate declarative WebMCP attribute quality actual=0 expected=0INFONo W3C-style declarative WebMCP form attributes were found. status="informational"Validate MCP-aware HTML annotations [informational]! No data-mcp-tool or hyphenated WebMCP compatibility annotations were found.INFOValidate MCP-aware HTML annotations status="informational"INFOInspect HTML for MCP compatibility annotations compatibilityAttributeCount=0 dataMcpToolCount=0 examples=[]SKIPValidate compatibility annotation quality actual=0 expected=0INFONo data-mcp-tool or hyphenated WebMCP compatibility annotations were found. status="informational"Validate static WebMCP JSON compatibility [warning]! No static WebMCP JSON manifest or WMCP interaction graph was found.INFOValidate static WebMCP JSON compatibility status="warning"INFODiscover static WebMCP manifest candidates conventionalPaths=["/.well-known/webmcp.json","/webmcp.json"] checkedCount=2 profileCounts={}INFOWebMCP manifest candidate checked source="path" path="/.well-known/webmcp.json" url="https://github.com/.well-known/webmcp.json" statusCode=404 contentType="application/json; charset=utf-8"INFOWebMCP manifest candidate checked source="path" path="/webmcp.json" url="https://github.com/webmcp.json" statusCode=410 contentType="application/json; charset=utf-8"WARNValidate discovered static WebMCP metadata actual={"validManifestCount":0,"invalidManifestCount":0,"toolCount":0,"wmcpActionCount":0} expected="at least 1 valid tools[] manifest or WMCP graph when static metadata is present"WARNNo static WebMCP JSON manifest or WMCP interaction graph was found.Validate WebMCP tool metadata quality [informational]INFOValidate WebMCP tool metadata quality status="informational"INFOInspect WebMCP tool names, descriptions, schemas, and safety hints toolCount=0SKIPCheck tool metadata findings actual={"issueCount":0,"warningCount":0} expected="0 issues and 0 warnings"INFOWebMCP evidence was recorded for context. status="informational"Review WebMCP security and policy signals [informational]INFOReview WebMCP security and policy signals status="informational"INFOInspect WebMCP security and policy signals permissionsPolicy="(missing)" failureCount=0 warningCount=0PASSCheck security findings actual={"failures":0,"warnings":0} expected="0 failures and 0 warnings"INFOWebMCP evidence was recorded for context. status="informational"

Fetch /ai.txt [fail]! /ai.txt returned HTTP 406.INFOFetch /ai.txtINFORequesting optional advisory policy file at /ai.txtFAILCompare /ai.txt HTTP response actual=406 expected="2xx when ai.txt is intentionally published; 404/410 means absent optional file" contentType="text/plain" length=0FAIL/ai.txt returned HTTP 406. statusCode=406Validate transport [fail]! ai.txt was reachable but empty.INFOValidate transportINFOChecking ai.txt media type, size, line count, and whether the response looks like plain text contentType="text/plain" length=0 lineCount=1FAILCompare media type to preferred text/plain transport actual="text/plain" expected="text/plain preferred; readable text required"FAILai.txt was reachable but empty.Parse ai.txt policy [fail]! Transport validation failed before policy parsing could be trusted.INFOParse ai.txt policyINFODetecting ai.txt convention from bracket sections, frontmatter, headings, and ai.txt context linksINFODetected policy structure convention="unknown-text" sections=[] markdownHeadings=[]WARNCheck AI Visibility required sections actual="missing identity, permissions, restrictions" expected="identity, permissions, and restrictions" missingRecommended=["attribution","contact","content-types"]WARNTransport validation failed before policy parsing could be trusted.Validate policy content [fail]! ai.txt is too short to provide useful advisory policy guidance.INFOValidate policy contentINFOChecking required section content, permission/restriction language, attribution, contact details, and safety risks convention="unknown-text"INFODetected policy signals hasPermissionLanguage=false hasRestrictionLanguage=false hasTrainingLanguage=false hasAttributionLanguage=false hasContact=falseFAILCheck required and recommended section coverage actual={"missingRequired":["identity","permissions","restrictions"],"missingRecommended":["attribution","contact","content-types"]} expected={"missingRequired":[],"recommendedPresentWhenPossible":true}FAILai.txt is too short to provide useful advisory policy guidance.

Validate RFC 9309 core syntax [fail]! robots.txt was found but did not contain a valid, parseable User-agent group.INFOValidate RFC 9309 core syntaxINFOParsing robots.txt into User-agent groups and Allow/Disallow recordsPASSCheck User-agent group count actual=5 expected=">= 1 parseable group" parsedUserAgents=["bingbot","adidxbot","BingPreview","baidu","*"]FAILCheck malformed lines and orphan Allow/Disallow records actual={"invalidLines":0,"orphanRecords":59} expected={"invalidLines":0,"orphanRecords":0}FAILAllow/Disallow records appeared before any User-agent group orphanRecords=[{"directive":"disallow","value":"/*/*/pulse","line":39},{"directive":"disallow","value":"/*/*/projects","line":40},{"directive":"disallow","value":"/*/*/forks","line":41},{"directive":"disallow","value":"/*/*/issues/new","line":42},{"directive":"disallow","value":"/*/*/milestones/new","line":43}]

Fetch discovery metadata [fail]! OAuth/OIDC was claimed or referenced, but no registered OAuth/OIDC discovery document was found.INFOFetch discovery metadataINFOTrying OAuth/OIDC well-known metadata candidates checkedCount=2INFOChecked discovery candidate path="/.well-known/openid-configuration" statusCode=404 contentType="text/plain; charset=utf-8" length=9INFOChecked discovery candidate path="/.well-known/oauth-authorization-server" statusCode=404 contentType="text/plain; charset=utf-8" length=9FAILCheck discovery metadata fetch succeeded actual=2 expected="HTTP 2xx JSON metadata document"FAILFetch discovery metadata failed issue="OAuth/OIDC was claimed or referenced, but no registered OAuth/OIDC discovery document was found."

Warn when auth surface lacks Auth.md [warning]! The site appears to support login, signup, account access, or credentials but does not publish /auth.md.INFOWarn when auth surface lacks Auth.mdWARNThe site appears to support login, signup, account access, or credentials but does not publish /auth.md.

Detect protected-resource applicability [warning]! Generic authentication signals were found, but no OAuth Protected Resource metadata signal was detected.INFODetect protected-resource applicabilityINFOInspecting auth headers, MCP/OAuth claims, and protected-resource hints applies=false requiresAuthorizationServers=false signalsCount=0 genericAuthSignalsCount=3 checkedCount=2WARNCheck protected-resource metadata applicability actual=false expected="true when RFC 9728 metadata exists or support is claimed" checked=[{"url":"https://github.com/.well-known/oauth-protected-resource","path":"/.well-known/oauth-protected-resource","source":"root-well-known","resourceIdentifier":"https://github.com","statusCode":404,"contentType":"text/plain; charset=utf-8","length":9},{"url":"https://github.com/.well-known/oauth-protected-resource/education","path":"/.well-known/oauth-protected-resource/education","source":"final-url-path","resourceIdentifier":"https://github.com/education","statusCode":404,"contentType":"text/plain; charset=utf-8","length":9}]WARNDetect protected-resource applicability completed with warnings issue="Generic authentication signals were found, but no OAuth Protected Resource metadata signal was detected."

Validate Last-Modified header [fail]! No valid Last-Modified HTTP header was found.INFOValidate Last-Modified headerINFOReading Last-Modified response headerFAILCheck Last-Modified header is present and parseable actual="missing" expected="valid" alternateDates=[]FAILLast-Modified header is missing or invalidValidate structured freshness dates [fail]! No Schema.org freshness dates were found.INFOValidate structured freshness datesINFOCollecting Schema.org freshness dates from JSON-LD, Microdata, and RDFaFAILCheck structured freshness date count actual=0 expected="> 0" invalidDateCount=0 formats={} alternateDates=[]FAILNo structured freshness dates foundValidate metadata freshness dates [fail]! No Open Graph, Dublin Core, or generic meta freshness date was found.INFOValidate metadata freshness datesINFOCollecting Open Graph, Dublin Core, and generic meta freshness datesFAILCheck metadata freshness date count actual=0 expected="> 0" metaDateCount=0 invalidDateCount=0 alternateDates=[]FAILNo metadata freshness dates foundCorroborate with sitemap lastmod [warning]INFOCorroborate with sitemap lastmodINFODiscovering sitemap candidates and matching the scanned page URL candidateCount=1 attempts=1WARNCheck matching sitemap lastmod actual="no match" expected="valid match when available" robotsStatusCode=200WARNNo matching sitemap lastmod found after sitemap attempts attempts=1

Organization entity [fail]! No Organization or Organization subtype was found in Schema.org structured data.INFOOrganization entityINFOLooking for Organization or Organization subtype in structured data observedTypes=[]FAILCheck Organization entity presence actual=false expected=true fields=[{"name":"Organization.@type","present":false},{"name":"Organization.@id","present":false},{"name":"Organization.name","present":false},{"name":"Organization.url","present":false},{"name":"Organization.logo","present":false},{"name":"Organization.sameAs","present":false}]FAILOrganization entity is missingWebSite entity [fail]! No WebSite entity was found in Schema.org structured data.INFOWebSite entityINFOLooking for WebSite entity in structured data FAILCheck WebSite entity presence actual=false expected=true fields=[{"name":"WebSite.@type","present":false},{"name":"WebSite.@id","present":false},{"name":"WebSite.name","present":false},{"name":"WebSite.url","present":false},{"name":"WebSite.publisher.@id","present":false},{"name":"WebSite.publisher.name","present":false},{"name":"WebSite.publisher.url","present":false}]FAILWebSite entity is missingIdentity fields [fail]! Missing identity field(s): Organization.name, Organization.url, WebSite.name, WebSite.url.INFOIdentity fieldsINFOChecking Organization and WebSite name/url fields FAILCheck required identity fields actual=0 expected=4 missing=["Organization.name","Organization.url","WebSite.name","WebSite.url"] organizationFields=[{"name":"Organization.@type","present":false},{"name":"Organization.@id","present":false},{"name":"Organization.name","present":false},{"name":"Organization.url","present":false},{"name":"Organization.logo","present":false},{"name":"Organization.sameAs","present":false}] websiteFields=[{"name":"WebSite.@type","present":false},{"name":"WebSite.@id","present":false},{"name":"WebSite.name","present":false},{"name":"WebSite.url","present":false},{"name":"WebSite.publisher.@id","present":false},{"name":"WebSite.publisher.name","present":false},{"name":"WebSite.publisher.url","present":false}]WARNCheck identity URLs match scanned origin actual={"organizationUrlMatchesOrigin":false,"websiteUrlMatchesOrigin":false} expected={"organizationUrlMatchesOrigin":true,"websiteUrlMatchesOrigin":true}FAILIdentity fields are missing missing=["Organization.name","Organization.url","WebSite.name","WebSite.url"]WebSite publisher linkage [fail]! WebSite.publisher is missing.INFOWebSite publisher linkageINFOChecking whether WebSite.publisher points to the Organization entity FAILCheck publisher presence actual=false expected=true publisher={"present":false,"matchesOrganization":false} website={} organization={}FAILCheck publisher matches Organization actual=false expected=trueFAILWebSite publisher is missingOrganization trust fields [fail]! Organization schema is missing logo and sameAs or public contact evidence.INFOOrganization trust fieldsINFOChecking logo, sameAs, and public contact evidence FAILCheck logo presence actual=false expected=true fields=[{"name":"Organization.logo","present":false},{"name":"Organization.sameAs","present":false},{"name":"Organization.contactPoint","present":false},{"name":"Organization.telephone","present":false},{"name":"Organization.email","present":false},{"name":"Organization.address","present":false}]FAILCheck sameAs or contact evidence actual=0 expected=">= 1" sameAsCount=0 contactSignalCount=0 fields=[{"name":"Organization.logo","present":false},{"name":"Organization.sameAs","present":false},{"name":"Organization.contactPoint","present":false},{"name":"Organization.telephone","present":false},{"name":"Organization.email","present":false},{"name":"Organization.address","present":false}]FAILOrganization trust fields are missing

Classify AI crawler rules [fail]! No explicit User-agent rules were found for major AI crawler tokens.INFOClassify AI crawler rulesINFOParsing User-agent groups and Allow/Disallow records for known AI crawler tokens evaluatedPath="/"INFOEvaluating exact User-agent matches before wildcard fallback exactAiPolicyCount=0 totalCrawlerTokens=18FAILNo explicit AI crawler User-agent groups were found examplesExpected=["GPTBot","OAI-SearchBot","ClaudeBot","Google-Extended","CCBot"]FAILCompare explicit AI crawler coverage actual=0 expected="> 0 explicit non-search AI crawler policies" missingTokens=["GPTBot","OAI-SearchBot","ChatGPT-User","ClaudeBot","Claude-SearchBot","Claude-User","Google-Extended","Applebot-Extended","Amazonbot","Amzn-SearchBot","Amzn-User","PerplexityBot"]INFOResolved effective root-path policy for crawler tokens blocked=0 allowed=21 unspecified=0

Markdown representation [fail]! No usable Markdown representation was found through negotiation, advertised alternates, or conservative .md mirror checks.INFOMarkdown representationFAILCheck usable Markdown representation was selected actual={"source":"negotiated","url":"https://github.com/education","statusCode":406,"contentType":"text/html; charset=utf-8","mediaType":"text/html","vary":"X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With, Accept-Language,Accept-Encoding, Accept, X-Requested-With","requireVaryAccept":true,"contentTypeStatus":"fail","cacheStatus":"pass","bodyStatus":"fail","pass":false,"quality":{"valid":false,"formatStatus":"fail","dialect":"plain-text-like","hasHeading":false,"headingCount":0,"wordCount":0,"features":{"markdownLinks":0,"referenceLinks":0,"listItems":0,"tables":0,"taskListItems":0,"fencedCodeBlocks":0,"yamlFrontmatter":false,"jsonLdFencedBlocks":0,"admonitions":0,"strikethrough":0,"autolinks":0,"rawHtmlTags":0,"jsxOrMdxSignals":0},"issues":["missing-heading","thin-body","plain-text-like"],"excerpt":"","issue":"Markdown response is missing a heading."}} expected="negotiated, advertised alternate, or conventional mirror" selected={"source":"negotiated","url":"https://github.com/education","statusCode":406,"contentType":"text/html; charset=utf-8","mediaType":"text/html","vary":"X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With, Accept-Language,Accept-Encoding, Accept, X-Requested-With","requireVaryAccept":true,"contentTypeStatus":"fail","cacheStatus":"pass","bodyStatus":"fail","pass":false,"quality":{"valid":false,"formatStatus":"fail","dialect":"plain-text-like","hasHeading":false,"headingCount":0,"wordCount":0,"features":{"markdownLinks":0,"referenceLinks":0,"listItems":0,"tables":0,"taskListItems":0,"fencedCodeBlocks":0,"yamlFrontmatter":false,"jsonLdFencedBlocks":0,"admonitions":0,"strikethrough":0,"autolinks":0,"rawHtmlTags":0,"jsxOrMdxSignals":0},"issues":["missing-heading","thin-body","plain-text-like"],"excerpt":"","issue":"Markdown response is missing a heading."}} candidatesChecked=2FAILMarkdown representation failed issue="No usable Markdown representation was found through negotiation, advertised alternates, or conservative .md mirror checks."Same-URL negotiation [fail]! Same-URL Accept: text/markdown did not return a valid Markdown representation.INFOSame-URL negotiationFAILCheck negotiated Markdown response actual={"statusCode":406,"mediaType":"text/html","vary":"X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With, Accept-Language,Accept-Encoding, Accept, X-Requested-With"} expected="HTTP 2xx text/markdown with Vary: Accept" url="https://github.com/education" statusCode=406 mediaType="text/html" vary="X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With, Accept-Language,Accept-Encoding, Accept, X-Requested-With"FAILSame-URL negotiation failed issue="Same-URL Accept: text/markdown did not return a valid Markdown representation."Markdown format validation [fail]! Markdown response is missing a heading.INFOMarkdown format validationFAILCheck Markdown body quality actual={"valid":false,"wordCount":0,"headingCount":0,"dialect":"plain-text-like"} expected="valid Markdown with substantive text and headings" valid=false dialect="plain-text-like" wordCount=0 headingCount=0FAILMarkdown format validation failed issue="Markdown response is missing a heading."Advertised Markdown alternate [warning]! No Link or HTML rel=alternate text/markdown URL was advertised.INFOAdvertised Markdown alternateWARNCheck advertised Markdown alternate candidates actual=0 expected="> 0 when HTML advertises a Markdown alternate" advertisedUrls=[] candidateCount=0WARNAdvertised Markdown alternate has a warning issue="No Link or HTML rel=alternate text/markdown URL was advertised."Conventional .md mirror [fail]! Conventional .md mirror candidates did not return valid Markdown.INFOConventional .md mirrorFAILCheck conventional Markdown mirror candidates actual=1 expected="> 0 when a conventional mirror is discoverable" conventionalUrls=["https://github.com/education.md"] candidateCount=1FAILConventional .md mirror failed issue="Conventional .md mirror candidates did not return valid Markdown."

Discover A2A Agent Card [warning]! No A2A Agent Card was found at the current, legacy, or fallback discovery paths.INFODiscover A2A Agent CardINFOTry A2A discovery paths in priority order paths=["/.well-known/agent-card.json","/.well-known/agent.json","/agent-card.json","/.well-known/a2a/agent-card.json"]WARNA2A candidate path did not return a usable card path="/.well-known/agent-card.json" statusCode=404 contentType="application/json; charset=utf-8"WARNA2A candidate path did not return a usable card path="/.well-known/agent.json" statusCode=404 contentType="application/json; charset=utf-8"WARNA2A candidate path did not return a usable card path="/agent-card.json" statusCode=410 contentType="application/json; charset=utf-8"WARNA2A candidate path did not return a usable card path="/.well-known/a2a/agent-card.json" statusCode=404 contentType="application/json; charset=utf-8"WARNNo A2A Agent Card candidate was selectedWARNNo A2A Agent Card was found at the current, legacy, or fallback discovery paths.

Discover Agent Skills index [warning]! No Agent Skills discovery index was found at the canonical or legacy path.INFODiscover Agent Skills indexINFOTry Agent Skills index paths in priority order paths=["/.well-known/agent-skills/index.json","/.well-known/skills/index.json"]WARNAgent Skills index candidate was not usable path="/.well-known/agent-skills/index.json" url="https://github.com/.well-known/agent-skills/index.json" statusCode=404WARNAgent Skills index candidate was not usable path="/.well-known/skills/index.json" url="https://github.com/.well-known/skills/index.json" statusCode=404WARNNo Agent Skills discovery index was found at the canonical or legacy path.

Discover agents.json [warning]! No Wildcard-style agents.json file was found.INFODiscover agents.jsonINFOTry agents.json discovery paths in priority order paths=["/.well-known/agents.json","/agents.json"]WARNagents.json candidate path did not return a usable contract path="/.well-known/agents.json" statusCode=404 contentType="application/json; charset=utf-8"WARNagents.json candidate path did not return a usable contract path="/agents.json" statusCode=410 contentType="application/json; charset=utf-8"WARNNo agents.json candidate was selectedWARNNo Wildcard-style agents.json file was found.

Query DNS-AID records [warning]! No DNS-AID HTTPS/SVCB records were found under _agents.INFOQuery DNS-AID recordsINFOBuild DNS-AID query names from hostname hostname="github.com" labels=["_index._agents.github.com","_a2a._agents.github.com"] claimedOnPage=falseWARNDNS query returned no DNS-AID answers name="_index._agents.github.com" rrtype="HTTPS" resolver="cloudflare-doh-json" rcode=0 ad=false answerCount=0WARNDNS query returned no DNS-AID answers name="_index._agents.github.com" rrtype="SVCB" resolver="cloudflare-doh-json" rcode=0 ad=false answerCount=0WARNDNS query returned no DNS-AID answers name="_index._agents.github.com" rrtype="ANY" resolver="node-resolveAny-fallback" answerCount=0 error="queryAny ETIMEOUT _index._agents.github.com"WARNDNS query returned no DNS-AID answers name="_a2a._agents.github.com" rrtype="HTTPS" resolver="cloudflare-doh-json" rcode=0 ad=false answerCount=0WARNDNS query returned no DNS-AID answers name="_a2a._agents.github.com" rrtype="SVCB" resolver="cloudflare-doh-json" rcode=0 ad=false answerCount=0WARNDNS query returned no DNS-AID answers name="_a2a._agents.github.com" rrtype="ANY" resolver="node-resolveAny-fallback" answerCount=0 error="queryAny ETIMEOUT _a2a._agents.github.com"WARNCompare total DNS-AID answer count actual=0 expected="> 0"WARNNo DNS-AID HTTPS/SVCB records were found under _agents.Check DNSSEC authentication evidence [warning]! DNSSEC authentication evidence was not visible for the DNS-AID labels or hostname.INFOCheck DNSSEC authentication evidenceWARNCompare DNSSEC authenticated-data flag actual=false expected=trueWARNCompare visible DNSSEC material actual=false expected=trueWARNResolver did not confirm authenticated DNSSEC data name="_index._agents.github.com" rrtype="HTTPS" resolver="cloudflare-doh-json" ad=false dnssecTypes=[]WARNResolver did not confirm authenticated DNSSEC data name="_index._agents.github.com" rrtype="SVCB" resolver="cloudflare-doh-json" ad=false dnssecTypes=[]WARNResolver did not confirm authenticated DNSSEC data name="_index._agents.github.com" rrtype="ANY" resolver="node-resolveAny-fallback" dnssecTypes=[]WARNResolver did not confirm authenticated DNSSEC data name="_a2a._agents.github.com" rrtype="HTTPS" resolver="cloudflare-doh-json" ad=false dnssecTypes=[]WARNResolver did not confirm authenticated DNSSEC data name="_a2a._agents.github.com" rrtype="SVCB" resolver="cloudflare-doh-json" ad=false dnssecTypes=[]WARNResolver did not confirm authenticated DNSSEC data name="_a2a._agents.github.com" rrtype="ANY" resolver="node-resolveAny-fallback" dnssecTypes=[]WARNResolver did not confirm authenticated DNSSEC data name="_index._agents.github.com" rrtype="DNSKEY" resolver="cloudflare-doh-json" ad=false dnssecTypes=[]WARNResolver did not confirm authenticated DNSSEC data name="_a2a._agents.github.com" rrtype="DNSKEY" resolver="cloudflare-doh-json" ad=false dnssecTypes=[]WARNResolver did not confirm authenticated DNSSEC data name="github.com" rrtype="DNSKEY" resolver="cloudflare-doh-json" ad=false dnssecTypes=[]WARNDNSSEC authentication evidence was not visible for the DNS-AID labels or hostname.

Validate declared usage preferences [warning]! No Content-Usage or Content-Signal declarations were found.INFOValidate declared usage preferencesINFOParsing declared preferences into terms and values recordCount=0SKIPSkipping declaration validation because no Content-Usage or Content-Signal records were declared.SKIPCompare declared records to validation requirement actual=0 expected="No validation needed when no records are declared"WARNNo Content-Usage or Content-Signal declarations were present.

Discover RSL declarations [warning]! No RSL declarations were found.INFODiscover RSL declarationsINFOChecking robots.txt License records, HTTP Link rel=license headers, HTML license links, and inline RSL XML robotsFound=trueSKIPCount discovered RSL declarations actual=0 expected=">= 1 when RSL licensing terms are published" sources={}WARNNo RSL declarations were found on any supported discovery surface.

Fetch /.well-known/tdmrep.json [warning]! No TDMRep declaration was found at /.well-known/tdmrep.json.INFOFetch /.well-known/tdmrep.jsonINFORequesting origin-level TDMRep declaration at /.well-known/tdmrep.jsonWARNCompare TDMRep file response actual=404 expected="2xx with JSON array when origin-level TDMRep is published" contentType="application/json; charset=utf-8" length=21WARNNo TDMRep declaration was found at /.well-known/tdmrep.json. 

Heading structure [fail]! Expected one meaningful visible h1; found 4.INFOHeading structureFAILCheck heading structure evidence actual={"counts":{"h1":4,"visibleH1":4,"headings":29,"emptyHeadings":0},"meaningfulH1":false} expected="semantic HTML evidence for this step"FAILHeading structure failed issue="Expected one meaningful visible h1; found 4."Links [warning]! 1 links use generic anchor text.INFOLinksWARNCheck links evidence actual={"counts":{"links":130,"inaccessibleLinks":0,"nonCrawlableLinks":0,"genericLinks":1},"accessibleLinks":true} expected="semantic HTML evidence for this step"WARNLinks has a warning issue="1 links use generic anchor text."Form labels and autocomplete [fail]! 1 user-fillable form controls are missing labels.INFOForm labels and autocompleteFAILCheck form labels and autocomplete evidence actual={"counts":{"formControls":1,"unlabeledFormControls":1,"autocompleteInputs":0,"inputsWithAutocomplete":0,"missingAutocompleteInputs":0},"formLabelCoverage":false} expected="semantic HTML evidence for this step"FAILForm labels and autocomplete failed issue="1 user-fillable form controls are missing labels."Native semantics and ARIA [warning]! 2 ARIA/native semantic conflicts or redundancies were found.INFONative semantics and ARIAWARNCheck native semantics and aria evidence actual={"counts":{"ariaIssues":2},"nativeSemanticIntegrity":false} expected="native HTML semantics are present and not replaced by conflicting ARIA"WARNNative semantics and ARIA has a warning issue="2 ARIA/native semantic conflicts or redundancies were found."

Schema.org attribution [warning]! Schema.org attribution is incomplete or relies only on publisher/fallback evidence.INFOSchema.org attributionINFOChecking structured data for author, creator, and publisher contributorsWARNCheck named Schema.org author count actual=0 expected="> 0" authorCount=0 publisherCount=0 namedContributors=0 authors=[] publishers=[] formats=[]WARNSchema.org attribution is incomplete or fallback-only authorCount=0 publisherCount=0 authors=[] publishers=[]Author identity quality [fail]! No named author or publisher identity could be extracted.INFOAuthor identity qualityINFOChecking contributors for stable identity signalsFAILCheck identified contributor count actual=0 expected="> 0" namedContributors=0 identifiedContributors=[] unidentifiedContributors=[]FAILNo named contributor identity could be extracted

Review preload opt-in [warning]! preload is present; verify hstspreload.org operational requirements before submission.INFOReview preload opt-inINFOInspect preload opt-in preload=true includeSubDomains=true maxAge=31536000WARNCompare header-level preload requirements actual="eligible by header" expected="preload + includeSubDomains + max-age >= 31536000" issue="preload is present; verify hstspreload.org operational requirements before submission."WARNpreload is present; verify hstspreload.org operational requirements before submission.

Page-relevant schema family [fail]! The page has specific visible content intent, but structured data does not include a matching primary schema family.INFOPage-relevant schema familyINFOInferring specific page intent and comparing it with detected Schema.org typesFAILCheck schema types matching specific visible page intent actual=0 expected="> 0" inferredIntents=["software"] expectedTypes=["SoftwareApplication","WebApplication","MobileApplication"] matchingTypes=[] observedTypes=["FAQPage"]FAILNo primary schema family matches the inferred page intent expectedTypes=["SoftwareApplication","WebApplication","MobileApplication"] primaryTypes=["FAQPage"]Supporting schema linkage [warning]! Primary schema exists without linked supporting entities.INFOSupporting schema linkageINFOChecking supporting schema types and @id referencesWARNCheck supporting entity or linked reference evidence actual=0 expected="> 0" supportingTypes=[] referenceCount=0WARNPrimary schema exists without linked supporting entities

Probe sampled linked resources [warning]! Some sampled llms.txt links were broken, redirected unexpectedly, or did not return clearly agent-readable content.INFOProbe sampled linked resourcesINFOSelecting safe, useful links for bounded probing selectedCount=25PASSCheck probed links were attempted actual=25 expected="> 0"WARNCheck broken probed link count actual=3 expected=0WARNBroken sampled llms.txt link url="https://docs.github.com/api/article" label="Article API" statusCode=400 contentType="application/json; charset=utf-8" method="GET" agentReadable=falseWARNBroken sampled llms.txt link url="https://docs.github.com/api/article/body" label="Article Body API" statusCode=400 contentType="application/json; charset=utf-8" method="GET" agentReadable=falseWARNBroken sampled llms.txt link url="https://docs.github.com/api/search/v1" label="Search API" statusCode=400 contentType="application/json; charset=utf-8" method="GET" agentReadable=falsePASSCheck agent-readable probed links actual=22 expected="> 0"WARNLinked resource probe validation completed with warnings reason="Some sampled llms.txt links were broken, redirected unexpectedly, or did not return clearly agent-readable content."Inspect optional llms-full.txt [informational]INFOInspect optional llms-full.txtINFOTrying to fetch /llms-full.txt url="https://github.com/llms-full.txt"SKIP/llms-full.txt is not present statusCode=406

Review CSP reporting [warning]! CSP does not define a reporting endpoint.INFOReview CSP reportingINFOInspect CSP reporting directives reportOnlyHeaderPresent=false reportOnlyDirectives=[]WARNCompare violation reporting configuration actual="no reporting endpoint" expected="report-to or report-uri present" issue="CSP does not define a reporting endpoint."WARNCSP does not define a reporting endpoint.

Find advertised IndexNow key location [informational]! No IndexNow key location was advertised in HTML, Link headers, or robots.txt.INFOFind advertised IndexNow key locationINFOLook for IndexNow key hints in HTML, Link headers, and robots.txt supportedHints=["robots.txt IndexNow-Key","rel=indexnow-key","meta name=indexnow-key-location"]PASSCompare advertised key location count actual=0 expected="> 0"WARNNo IndexNow key location was advertised in HTML, Link headers, or robots.txt.Fetch and validate IndexNow key file [informational]! No discoverable IndexNow key file was found.INFOFetch and validate IndexNow key fileINFOLook for IndexNow key hints in HTML, Link headers, and robots.txt supportedHints=["robots.txt IndexNow-Key","rel=indexnow-key","meta name=indexnow-key-location"]PASSCompare advertised key location count actual=0 expected="> 0"INFOFetch each advertised same-origin key file and validate filename/body matchFAILCompare valid IndexNow key file count actual=0 expected="> 0"WARNNo discoverable IndexNow key file was found.