{"$self":"https://www.designsystems.one/api/ai-ready/systems","$schema":"https://www.designsystems.one/schemas/ai-ready-systems.json","indexUrl":"https://www.designsystems.one/ai-ready/systems","methodologyUrl":"https://www.designsystems.one/ai-ready/systems#methodology","auditedAt":"2026-06-10","nextAuditAt":"2026-09-10","signals":{"mcp":"MCP server","llmsTxt":"llms.txt","dtcg":"DTCG tokens","registry":"Component registry","codeConnect":"Figma Code Connect"},"count":37,"items":[{"slug":"shadcn-ui","name":"shadcn/ui","company":"shadcn","breakdownUrl":"https://www.designsystems.one/design-systems/shadcn-ui","score":3,"signals":{"mcp":{"status":"yes","evidence":"First-party MCP for the registry.","url":"https://ui.shadcn.com/docs/registry/mcp"},"llmsTxt":{"status":"yes","url":"https://ui.shadcn.com/llms.txt"},"dtcg":{"status":"no","evidence":"Uses Tailwind tokens, not DTCG."},"registry":{"status":"yes","evidence":"Canonical /r/* registry; `npx shadcn add <url>`.","url":"https://ui.shadcn.com/docs/registry"},"codeConnect":{"status":"unknown"}},"notes":"The closest thing to agent-native in the entire audit."},{"slug":"ant-design","name":"Ant Design","company":"Ant Group","breakdownUrl":"https://www.designsystems.one/design-systems/ant-design","score":2,"signals":{"mcp":{"status":"yes","evidence":"`antd mcp` CLI launches MCP server.","url":"https://ant.design/docs/react/mcp/"},"llmsTxt":{"status":"yes","url":"https://ant.design/llms.txt"},"dtcg":{"status":"unknown","evidence":"Own token system; DTCG conformance not confirmed."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"atlassian-design","name":"Atlassian Design System","company":"Atlassian","breakdownUrl":"https://www.designsystems.one/design-systems/atlassian-design","score":2,"signals":{"mcp":{"status":"yes","evidence":"mcp.atlassian.com/v1/ads/public/mcp + @atlaskit/ads-mcp on npm.","url":"https://www.npmjs.com/package/@atlaskit/ads-mcp"},"llmsTxt":{"status":"yes","url":"https://atlassian.design/llms.txt"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"One of the most complete first-party MCP offerings."},{"slug":"carbon-design","name":"Carbon","company":"IBM","breakdownUrl":"https://www.designsystems.one/design-systems/carbon-design","score":2,"signals":{"mcp":{"status":"yes","evidence":"Official carbon-mcp.","url":"https://github.com/carbon-design-system/carbon-mcp"},"llmsTxt":{"status":"yes","evidence":"Referenced as part of Carbon MCP onboarding."},"dtcg":{"status":"unknown","evidence":"Carbon tokens predate DTCG stable."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"chakra-ui","name":"Chakra UI","company":"Chakra Systems","breakdownUrl":"https://www.designsystems.one/design-systems/chakra-ui","score":2,"signals":{"mcp":{"status":"yes","url":"https://chakra-ui.com/docs/get-started/ai/mcp-server"},"llmsTxt":{"status":"yes","url":"https://chakra-ui.com/docs/get-started/ai/llms"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"Strong AI-readiness story — MCP + llms.txt + llms-components + migration variant."},{"slug":"mantine","name":"Mantine","company":"Mantine","breakdownUrl":"https://www.designsystems.one/design-systems/mantine","score":2,"signals":{"mcp":{"status":"yes","evidence":"Official @mantine/mcp-server.","url":"https://mantine.dev/guides/llms/"},"llmsTxt":{"status":"yes","url":"https://mantine.dev/llms.txt"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"mui","name":"MUI (Material UI)","company":"MUI","breakdownUrl":"https://www.designsystems.one/design-systems/mui","score":2,"signals":{"mcp":{"status":"yes","evidence":"Official @mui/mcp.","url":"https://mui.com/material-ui/getting-started/mcp/"},"llmsTxt":{"status":"yes","url":"https://mui.com/material-ui/llms.txt"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"primer","name":"Primer","company":"GitHub","breakdownUrl":"https://www.designsystems.one/design-systems/primer","score":2,"signals":{"mcp":{"status":"no"},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"yes","evidence":"primer/primitives converted to W3C DTCG dimension format.","url":"https://github.com/primer/primitives/blob/main/DESIGN_TOKENS_GUIDE.md"},"registry":{"status":"no"},"codeConnect":{"status":"yes","evidence":"GitHub uses Figma MCP/Code Connect with Primer (per Figma blog)."}}},{"slug":"spectrum","name":"Spectrum","company":"Adobe","breakdownUrl":"https://www.designsystems.one/design-systems/spectrum","score":2,"signals":{"mcp":{"status":"yes","evidence":"First-party MCP + @adobe/spectrum-design-data-mcp.","url":"https://react-spectrum.adobe.com/mcp"},"llmsTxt":{"status":"yes","url":"https://react-spectrum.adobe.com/ai"},"dtcg":{"status":"unknown","evidence":"spectrum-design-data publishes structured tokens; DTCG conformance not confirmed."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"One of the most complete AI-readiness offerings from a large vendor."},{"slug":"skyscanner-backpack","name":"Backpack","company":"Skyscanner","breakdownUrl":"https://www.designsystems.one/design-systems/skyscanner-backpack","score":1,"signals":{"mcp":{"status":"no"},"llmsTxt":{"status":"unknown","evidence":"backpack/AGENTS.md exists; llms.txt not confirmed."},"dtcg":{"status":"unknown","evidence":"Theo-generated JSON, predates DTCG."},"registry":{"status":"no"},"codeConnect":{"status":"yes","evidence":"packages/**/*.figma.tsx + sync-figma-code-connect workflow.","url":"https://github.com/Skyscanner/backpack"}},"notes":"Strong Code Connect adoption."},{"slug":"workday-canvas","name":"Canvas","company":"Workday","breakdownUrl":"https://www.designsystems.one/design-systems/workday-canvas","score":1,"signals":{"mcp":{"status":"yes","evidence":"Canvas Kit MCP referenced in Canvas announcements; v4 tokens.","url":"https://canvas.workday.com/help/announcements"},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"unknown","evidence":"Canvas Tokens v4 numerical scales; DTCG format not confirmed."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"amazon-design","name":"Cloudscape","company":"Amazon Web Services","breakdownUrl":"https://www.designsystems.one/design-systems/amazon-design","score":1,"signals":{"mcp":{"status":"unknown","evidence":"Community MCPs only; GitHub issue #3746 open for first-party MCP."},"llmsTxt":{"status":"yes","url":"https://cloudscape.design/llms.txt"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"First-party MCP requested but not yet shipped."},{"slug":"lightning-design","name":"Lightning Design System","company":"Salesforce","breakdownUrl":"https://www.designsystems.one/design-systems/lightning-design","score":1,"signals":{"mcp":{"status":"yes","evidence":"Salesforce DX MCP includes explore_slds_blueprints and guide_design_general tools.","url":"https://developer.salesforce.com/blogs/2025/10/vibe-code-lightning-web-components-with-salesforce-dx-mcp"},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"SLDS surfaced through the broader DX MCP, not a dedicated server."},{"slug":"nhs-design","name":"NHS Design System","company":"National Health Service","breakdownUrl":"https://www.designsystems.one/design-systems/nhs-design","score":1,"signals":{"mcp":{"status":"no"},"llmsTxt":{"status":"no"},"dtcg":{"status":"yes","evidence":"Confirmed as child variant of GOV.UK W3C-DTCG token library."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"gitlab-pajamas","name":"Pajamas","company":"GitLab","breakdownUrl":"https://www.designsystems.one/design-systems/gitlab-pajamas","score":1,"signals":{"mcp":{"status":"unknown","evidence":"GitLab MCP is for the platform, not Pajamas docs."},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"yes","evidence":"Tokens via Style Dictionary; DTCG shape claimed in docs."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"polaris","name":"Polaris","company":"Shopify","breakdownUrl":"https://www.designsystems.one/design-systems/polaris","score":1,"signals":{"mcp":{"status":"yes","evidence":"Shopify Dev MCP supports Polaris (POLARIS_UNIFIED flag).","url":"https://shopify.dev/docs/api/polaris/using-mcp"},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"unknown","evidence":"@shopify/polaris-tokens is kebab-case JSON; DTCG-prefix not confirmed."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"stripe-design","name":"Stripe Design System","company":"Stripe","breakdownUrl":"https://www.designsystems.one/design-systems/stripe-design","score":1,"signals":{"mcp":{"status":"no","evidence":"Stripe MCP is for the payments API, not the (private) design system."},"llmsTxt":{"status":"yes","evidence":"docs.stripe.com/llms.txt covers product docs.","url":"https://docs.stripe.com/llms.txt"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"Stripe's design system isn't a published product."},{"slug":"airbnb-design","name":"Airbnb DLS","company":"Airbnb","breakdownUrl":"https://www.designsystems.one/design-systems/airbnb-design","score":0,"signals":{"mcp":{"status":"no"},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"DLS is largely private; 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no agent tooling."},{"slug":"dropbox-design","name":"Dropbox Design","company":"Dropbox","breakdownUrl":"https://www.designsystems.one/design-systems/dropbox-design","score":0,"signals":{"mcp":{"status":"no","evidence":"Dropbox MCP exists for the file product, not the design system."},"llmsTxt":{"status":"no"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"ebay-design","name":"eBay Evo","company":"eBay","breakdownUrl":"https://www.designsystems.one/design-systems/ebay-design","score":0,"signals":{"mcp":{"status":"no","evidence":"eBay MCPs target the marketplace API, not Evo."},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"fluent-design","name":"Fluent UI","company":"Microsoft","breakdownUrl":"https://www.designsystems.one/design-systems/fluent-design","score":0,"signals":{"mcp":{"status":"unknown","evidence":"Internal-only MCP per GitHub discussion #35732; not open-sourced."},"llmsTxt":{"status":"unknown","evidence":"@fluentui/storybook-llms-extractor exists; first-party llms.txt not confirmed."},"dtcg":{"status":"unknown"},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"Internal MCP acknowledged but not public."},{"slug":"vercel-geist","name":"Geist","company":"Vercel","breakdownUrl":"https://www.designsystems.one/design-systems/vercel-geist","score":0,"signals":{"mcp":{"status":"unknown","evidence":"Vercel MCP exists but for the platform; not Geist-specific."},"llmsTxt":{"status":"unknown","evidence":"vercel.com/docs/llms-full.txt covers Vercel docs, not Geist."},"dtcg":{"status":"unknown"},"registry":{"status":"no","evidence":"Vercel hosts the shadcn registry concept; Geist not published as one."},"codeConnect":{"status":"unknown"}}},{"slug":"gestalt","name":"Gestalt","company":"Pinterest","breakdownUrl":"https://www.designsystems.one/design-systems/gestalt","score":0,"signals":{"mcp":{"status":"no"},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"unknown","evidence":"Uses Style Dictionary; 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M3 tokens published, conformance not confirmed."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"Notable absence given Google's DTCG involvement."},{"slug":"paste","name":"Paste","company":"Twilio","breakdownUrl":"https://www.designsystems.one/design-systems/paste","score":0,"signals":{"mcp":{"status":"no","evidence":"Twilio MCP is API-wide, not Paste-specific."},"llmsTxt":{"status":"unknown","evidence":"twilio.com/docs/llms.txt covers product API, not Paste docs root."},"dtcg":{"status":"unknown","evidence":"Tokens package exists; DTCG conformance not confirmed."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"redhat-patternfly","name":"PatternFly","company":"Red Hat","breakdownUrl":"https://www.designsystems.one/design-systems/redhat-patternfly","score":0,"signals":{"mcp":{"status":"unknown","evidence":"PatternFly MCP mentioned in passing in Red Hat dev articles; no canonical first-party URL surfaced."},"llmsTxt":{"status":"unknown"},"dtcg":{"status":"unknown","evidence":"3-layer token system; DTCG format not confirmed."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}}},{"slug":"radix-ui","name":"Radix UI","company":"WorkOS","breakdownUrl":"https://www.designsystems.one/design-systems/radix-ui","score":0,"signals":{"mcp":{"status":"no","evidence":"Community MCPs only; issue #894 open for llms.txt."},"llmsTxt":{"status":"no","evidence":"Feature request open."},"dtcg":{"status":"n/a","evidence":"Radix is unstyled primitives."},"registry":{"status":"no"},"codeConnect":{"status":"unknown"}},"notes":"shadcn/ui's registry is built on Radix; Radix itself has minimal AI surface."},{"slug":"tailwind-ui","name":"Tailwind UI / Tailwind Plus","company":"Tailwind Labs","breakdownUrl":"https://www.designsystems.one/design-systems/tailwind-ui","score":0,"signals":{"mcp":{"status":"no","evidence":"No first-party MCP; community wrappers only."},"llmsTxt":{"status":"unknown","evidence":"Discussion #18256 still open re: llms-full.txt."},"dtcg":{"status":"no"},"registry":{"status":"no","evidence":"Tailwind UI uses its own paid catalog, not shadcn-style registry."},"codeConnect":{"status":"unknown"}},"notes":"Tailwind Labs has been slow to ship AI artifacts."},{"slug":"usds-design","name":"U.S. Web Design System","company":"U.S. Government","breakdownUrl":"https://www.designsystems.one/design-systems/usds-design","score":0,"signals":{"mcp":{"status":"no","evidence":"Only community USWDS MCP (bibekpdl)."},"llmsTxt":{"status":"no"},"dtcg":{"status":"no","evidence":"USWDS tokens predate DTCG; SCSS settings."},"registry":{"status":"no"},"codeConnect":{"status":"no"}}}],"license":"CC BY 4.0 — attribute DesignSystems.one when reusing.","cite":"DesignSystems.one. (2026). Agent-Ready Design Systems Index. https://www.designsystems.one/ai-ready/systems"}