Is vitest.dev agent ready?
vitest.dev is partly agent ready: it scores 46/100 (grade C) on the w2agent rubric.
Changed since last check
+2 points since the previous check (2026-09-15)
Fixed: Response time
Category scores
Category breakdown not recorded for this audit.
Agent protocol panel
- A2A agent cardNot found
- OAuth discoveryNot found
- MCP discoveryNot found
- llms.txt validityPresent
Check results
Bot Accessibility
- ✓No error status codespass
- ✓Response timepass
- ✗XML sitemap existsfail
- ✓AI agent accesspass
- ✓Edge treatment of agent user-agentstracked, not scoredpass
- ✓robots.txt existspass
- ✗Content negotiation (Markdown)fail
- —Declared AI usage preferencestracked, not scoredskip
Structured Data
- ✓OpenGraph meta tagspass
- ✓Semantic HTML elementspass
- ✗Appropriate Schema.org typefail
- —JSON-LD validskip
- ~Heading hierarchypartial
- ✗Schema.org JSON-LD presentfail
- ✗Schema.org completenessfail
Content Quality
- ✗FAQ contentfail
- ✓Answer-first contentpass
- ✓Content lengthpass
- ~Token efficiency (HTML-to-text ratio)partial
- ✓Freshness signalspass
- ✓Author attributionpass
- ✓Citation readinesspass
- ✓Lists and tables for structured infopass
Agent Discovery
- ✓llms.txt follows specpass
- ✓llms.txt existspass
- —MCP server cardtracked, not scoredskip
- ✗Markdown alternate linksfail
- ✗/.well-known/agent-card.jsonfail
- ✗llms.txt links resolvefail
Agent Protocols
- ✓Discoverable API endpointspass
- ✗MCP endpointfail
- ✗Action schemasfail
- —/.well-known/ucpskip
- —Structured formsskip
- —WebMCP imperative APItracked, not scoredskip
- —WebMCP declarative APItracked, not scoredskip
- ✓Reachable as Google-Agentpass
- ✓Reachable as ChatGPT-Userpass
- ✓Reachable as Perplexity-Userpass
Agent Auth
- —MCP authorization (401 challenge → protected resource metadata)skip
- ✗PKCE S256 supportfail
- ~Public API surfacepartial
- —Client ID Metadata Documents (bonus)skip
- ✗OpenAPI specificationfail
- ✗Agent/bot auth documentationfail
- ✗OAuth discovery chain (RFC 9728 → RFC 8414)fail
- ✓Developer portalpass
- ✗Scoped API permissionsfail
- ✗API catalog (RFC 9727)fail
- —Agent operator signing directorytracked, not scoredskip
Technical
- ✓HTTPSpass
- ✓UTF-8 charsetpass
- ✗Canonical URLsfail
- ✓Mobile viewportpass
- ✓Content accessible without JSpass
- ✓Security headerspass
Other
- —local-business-hours-jsonldskip
- —local-business-nap-structuredskip
- —local-business-booking-accessibleskip
Score history
- 46/100 · rubric v3.0
- 44/100 · rubric v3.0
- 43/100 · rubric v2.0
- 43/100 · rubric v2.0
- 43/100 · rubric v2.0
- 43/100 · rubric v2.0
- 43/100 · rubric v2.0
- 43/100 · rubric v2.0
- 54/100 · rubric v2.0
- 54/100 · rubric v2.0
- 51/100 · rubric v2.0