{"apiVersion":"v1","directorySlug":"designesy-mcp-5ba0543fdd","title":"Designesy","description":"AI makes execution free. We make execution yours. Verify any site against the Designesy design system contract — 42 checks, one grade, real-time. The compliance layer for AI-generated UI.","pageUrl":"https://www.mcpbundles.com/skills/designesy-mcp-5ba0543fdd","connectPath":"importable","connectAction":"import_server","catalogListing":false,"bundleSlug":null,"listingKind":"remote_mcp","kind":"provider","transportUrl":"https://www.designesy.org/api/mcp","hostedMcpUrl":null,"toolCount":17,"toolInventoryStatus":"observed","refreshedAt":"2026-11-03T13:26:00.516172+00:00","registryName":"org.designesy/designesy-mcp-5ba0543fdd","registryVersion":"2026.11.3","registryEligible":true,"tools":[{"name":"designesy_catalog","description":"List the 23 published Designesy packages with versions, URLs, and statuses. Use this to discover what Designesy publishes before fetching a specific contract. When NOT to use: if you already know which package you need, skip this and call designesy_contract directly. Read-only — no side effects. Returns JSON: { package_count, packages[{id, kind, title, version, status, human_url, machine_url}], standing_rules[], machine_exports[] }. No parameters — accepts empty input.","inputSchema":{"type":"object","properties":{}},"logicalName":"designesy_catalog","displayName":"designesy_catalog","title":"designesy_catalog","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_contract","description":"Get the Designesy design-system contract — the canonical tokens, motion, acoustic, takt, cadence, typography, components, and verification rules that define what the Designesy org considers legitimate design. Use this when you need the actual contract values (token names and values, motion timings, accessibility rules) to author, check, or bind a design. When NOT to use: for a pass/fail score of a live site, use designesy_score; for an agent-skill-format export, use designesy_skill_md. Read-only","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"section":{"type":"string"}}},"logicalName":"designesy_contract","displayName":"designesy_contract","title":"designesy_contract","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_design_review","description":"Get the Designesy Design Review framework — an 8-dimension rubric (Purpose, Clarity, Context, Inclusion, System coherence, Durability, Delight, Responsibility) plus the agent prompt, output format, and verification checklist for a qualitative design critique. Use this when you want a structured rubric to critique a design holistically, rather than a numeric compliance score. When NOT to use: for a deterministic numeric score, use designesy_score; this tool gives you a rubric, not a number. Read-","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"rules":{"type":"string"},"context":{"type":"string"},"purpose":{"type":"string"},"artifact":{"type":"string"}}},"logicalName":"designesy_design_review","displayName":"designesy_design_review","title":"designesy_design_review","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_skill_md","description":"Get the Designesy SKILL.md — the agent-skill-format export of the design-system contract, written as behavioral rules an AI coding agent can drop into .agents/skills/ or a system prompt. Use this when you want the contract in a form that steers how an agent *builds* UI (tokens, anti-patterns, behavioral rules, verification). When NOT to use: for the raw contract JSON, use designesy_contract; for scoring, use designesy_score. Read-only — no side effects. Returns markdown text (SKILL.md format) —","inputSchema":{"type":"object","properties":{}},"logicalName":"designesy_skill_md","displayName":"designesy_skill_md","title":"designesy_skill_md","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_agent_json","description":"Get the Designesy agent discovery document (/.well-known/agent.json) — the org identity, authority, ingest protocol, package index, machine-export list, permission policy, and citation templates. Use this when you are integrating with or enumerating Designesy as a machine agent and need the canonical discovery/manifest endpoint rather than one specific contract. When NOT to use: for the package list, use designesy_catalog (lighter); for the contract, use designesy_contract. Read-only — no side e","inputSchema":{"type":"object","properties":{}},"logicalName":"designesy_agent_json","displayName":"designesy_agent_json","title":"designesy_agent_json","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_llms_txt","description":"Get the Designesy /llms.txt — a short agent-facing brief with the canonical reference, topic index, ingest steps, package list, and contact. Use this first when you don't know what Designesy is — it's the cheapest orientation path before pulling heavier artifacts. When NOT to use: for the full expanded brief, use designesy_llms_full_txt; for the contract itself, use designesy_contract. Read-only — no side effects. Returns text/plain (~500 tokens). No parameters.","inputSchema":{"type":"object","properties":{}},"logicalName":"designesy_llms_txt","displayName":"designesy_llms_txt","title":"designesy_llms_txt","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_llms_full_txt","description":"Get the Designesy /llms-full.txt — the complete agent-facing brief: ingest protocol, discovery endpoints, every package, standing rules, anti-patterns, and a paste-ready agent prompt. Use this for comprehensive onboarding to the Designesy ecosystem when the short /llms.txt is not enough. When NOT to use: for a quick orientation, use designesy_llms_txt first (~500 tokens vs ~3000). Read-only — no side effects. Returns text/plain (~3000 tokens, includes a paste-ready agent prompt). No parameters.","inputSchema":{"type":"object","properties":{}},"logicalName":"designesy_llms_full_txt","displayName":"designesy_llms_full_txt","title":"designesy_llms_full_txt","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_score","description":"Score a live URL against the Designesy design contract — a deterministic 42-check verification engine that returns a numeric score, letter grade (A–F), and per-check breakdown. Use this to audit whether a website or AI-generated UI complies with a real design contract (tokens, motion, accessibility, cadence, takt, typography, copywriting). When NOT to use: for token-file validation only, use designesy_tokens_score; for a Lottie file, use designesy_motion_score; for a qualitative critique, use de","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"url":{"type":"string"}}},"logicalName":"designesy_score","displayName":"designesy_score","title":"designesy_score","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_tokens_score","description":"Validate a design token file against the W3C Design Tokens Community Group (DTCG) 2025.10 Final Community Group Report (the spec's first stable version, published Oct 28 2025 — Candidate Recommendation, considered stable). Returns 10 conformance checks (t01-t10) with PASS/FAIL/WARN. Use this to verify a tokens.json (or any DTCG token export) is structurally correct — $type/$value/$description present, structured colors (colorSpace + components rather than bare hex), a valid $schema pointer to de","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"url":{"type":"string"},"dtcg_file":{"type":"string"}}},"logicalName":"designesy_tokens_score","displayName":"designesy_tokens_score","title":"designesy_tokens_score","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_a11y_score","description":"Get the Designesy WCAG 2.2 AA accessibility verification framework: 11 conformance checks (a01-a11) plus a ready-to-run Playwright + axe-core 4.13.0 script template targeting your URL. Use this to audit a site for accessibility violations. When NOT to use: for a full design-contract score (not just a11y), use designesy_score. Does NOT run the scan — axe-core needs a real browser DOM. Returns the 11 checks + a Playwright script you execute locally (npm i -D @axe-core/playwright). The score comes","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["url"],"properties":{"url":{"type":"string"},"config":{"type":"string"},"ruleset":{"type":"string"}}},"logicalName":"designesy_a11y_score","displayName":"designesy_a11y_score","title":"designesy_a11y_score","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_motion_score","description":"Validate a Lottie animation file against the Lottie spec v1.0.1 and the Designesy §16 Ten Non-Negotiable Motion Standards, returning 10 checks (m01-m10) with PASS/FAIL/WARN. The DTCG 2025.10 spec leaves motion tokens as a second-class citizen — there is no standard for motion token structure, reduced-motion markers, or animation accessibility. Designesy's motion validator fills this gap: it checks required fields (v, fr, ip, op, w, h, layers), $version, a markers array for reduced-motion complia","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"url":{"type":"string"},"lottie_file":{"type":"string"}}},"logicalName":"designesy_motion_score","displayName":"designesy_motion_score","title":"designesy_motion_score","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_drift_score","description":"Score a live URL for AI-generated UI drift — 12 checks detect the four documented 2026 drift failure modes: token fabrication (var() to undeclared custom properties), within-session drift (spacing/color/radius value variance), between-session amnesia (inconsistent font stacks, shadows, transitions), and silent breaking changes (z-index chaos, dangling alias chains). Use this when you need to verify whether a site (especially an AI-generated one) is drifting off its own declared token system. Whe","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"url":{"type":"string"}}},"logicalName":"designesy_drift_score","displayName":"designesy_drift_score","title":"designesy_drift_score","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_readiness_score","description":"Score a URL for design-system AI readiness — the 6th maturity axis (zeroheight 2026). 10 checks probe the target origin for machine-readable artifacts: DTCG token files, llms.txt, agent.json, MCP endpoint (tools/list), DESIGN.md, token $description, component schemas, sitemap.xml, robots.txt, and Open Graph/Twitter meta. Use this to verify whether a design system is the default context AI tools build from, or whether AI is silently working around it. When NOT to use: for full design-contract sco","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"url":{"type":"string"}}},"logicalName":"designesy_readiness_score","displayName":"designesy_readiness_score","title":"designesy_readiness_score","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_guardrails","description":"Generate a frozen build-contract bundle for AI coding agents from any design system URL — the product layer. Ingests a site, extracts its :root tokens, and emits 6 outputs: (1) DTCG-format token file, (2) Stylelint config generated from token values, (3) AGENTS.md-format rules with token allowlist, (4) component contract with allowed prop patterns, (5) anti-pattern documentation, (6) DESIGN.md file (Google open spec, google-labs-code/design.md) — YAML front matter + markdown body, the de-facto A","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"url":{"type":"string"}}},"logicalName":"designesy_guardrails","displayName":"designesy_guardrails","title":"designesy_guardrails","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_monitor_score","description":"Score a URL for continuous design-drift governance — the temporal layer over the drift radar. Re-runs the 12 drift checks (d01-d12) on the URL and computes 10 monitor checks (m01-m10): schedule registered, last run fresh, drift delta vs baseline, trend slope (3-run trajectory), new violations since last run, resolved since last run (the healing signal), score degradation threshold, token-set mutation, contract version drift, and alert delivered. When alerts fire and an email address is provided,","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"url":{"type":"string"},"email":{"type":"string"},"history":{"type":"array","items":{"type":"object","required":["timestamp","score","grade","tokensExtracted","checks"],"properties":{"grade":{"type":"string"},"score":{"type":"number"},"checks":{"type":"array","items":{"type":"object","required":["id","item","category","status","detail"],"properties":{"id":{"type":"string"},"item":{"type":"string"},"detail":{"type":"string"},"status":{"enum":["PASS","FAIL","WARN"],"type":"string"},"category":{"type":"string"}}}},"timestamp":{"type":"string"},"tokensExtracted":{"type":"number"}}}}}},"logicalName":"designesy_monitor_score","displayName":"designesy_monitor_score","title":"designesy_monitor_score","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_compare","description":"Diff two design systems from live URLs — the only URL-scoped design-token diff engine. Fetches both URLs in parallel, extracts their :root custom properties, and produces a structured diff across 8 dimensions: tokens added (in A not B), removed (in B not A), renamed (heuristic Levenshtein ≤ 2), value-changed (same name, different value), scale-stop-changed (spacing/radius/color scale steps), contrast-drift-per-pair (WCAG contrast ratio change for shared color tokens), structure-delta (token coun","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["urlA","urlB"],"properties":{"urlA":{"type":"string"},"urlB":{"type":"string"}}},"logicalName":"designesy_compare","displayName":"designesy_compare","title":"designesy_compare","annotations":{"untrustedContentHint":true,"readOnlyHint":true}},{"name":"designesy_report","description":"Generate a unified design-intelligence report for a single URL — the synthesis capstone of the Designesy dynasty. Fires /score (42-check audit), /drift (12-check drift radar), and /readiness (10-check AI readiness) in parallel, then computes a weighted composite: score × 0.5 + drift × 0.3 + readiness × 0.2. One input, one output, one composite grade. Use this when you need a single holistic assessment instead of three separate scans, or when sharing a design-intelligence verdict (the report is t","inputSchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["url"],"properties":{"url":{"type":"string"}}},"logicalName":"designesy_report","displayName":"designesy_report","title":"designesy_report","annotations":{"untrustedContentHint":true,"readOnlyHint":true}}],"toolSource":"directory_preview","agentAction":"both","installLinks":[{"id":"cursor","label":"Cursor","href":"cursor://anysphere.cursor-deeplink/mcp/install?name=Designesy&config=eyJ1cmwiOiAiaHR0cHM6Ly93d3cuZGVzaWduZXN5Lm9yZy9hcGkvbWNwIn0%3D"},{"id":"vscode","label":"VS Code","href":"vscode:mcp/install?%7B%22name%22%3A%22Designesy%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fwww.designesy.org%2Fapi%2Fmcp%22%7D"},{"id":"vscode-insiders","label":"VS Code Insiders","href":"vscode-insiders:mcp/install?%7B%22name%22%3A%22Designesy%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fwww.designesy.org%2Fapi%2Fmcp%22%7D"},{"id":"claude-web","label":"Claude.ai","href":"https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Designesy&connectorUrl=https%3A%2F%2Fwww.designesy.org%2Fapi%2Fmcp"},{"id":"codex","label":"Codex","copyText":"codex mcp add \"Designesy\" --url \"https://www.designesy.org/api/mcp\""},{"id":"chatgpt","label":"ChatGPT","href":"https://www.mcpbundles.com/docs/integrations/chatgpt"}],"catalogUrl":"https://www.mcpbundles.com/api/directory/v1/servers/designesy-mcp-5ba0543fdd","callUrl":"https://www.mcpbundles.com/api/directory/v1/servers/designesy-mcp-5ba0543fdd/tools/{tool}","mcpServerUrl":"https://www.designesy.org/api/mcp","liveCatalogUrl":"https://www.mcpbundles.com/api/directory/v1/servers/designesy-mcp-5ba0543fdd?live=1"}