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MCP live MCP 2026-07-28 streamable-http

Playwright MCP Server

io.github.le-vai/designesy-org

Design quality gate for AI-generated UI: score any URL on 45 deterministic checks, A–F grade.

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Get before/after evidence when observed tools, schemas, authentication access, availability or the endpoint changes.

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Uptime
100.0%
5 direct probes · 30d
Response
936ms
last probe
Tools
17
callable
Resources
1
readable
Prompts
0
available
Primary URL
https://www.designesy.org/api/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
17 tools, 1 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
18 items in total; 3 or more earns these points.
pass Describes itself 10/10
93 characters; more than 30 earns these points.

Tools · 17

designesy_catalog

List the 24 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 whic…

designesy_contract

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 …

designesy_design_review

Get the Designesy Design Review rubric for a qualitative design critique: eight dimensions (Purpose, Clarity, Context, Inclusion, System coherence, Durability, Delight, Responsibility), the output for…

designesy_skill_md

Get the Designesy SKILL.md: the agent-skill-format export of the design-system contract, for a user to save into .agents/skills/ or a system prompt so a coding agent builds UI to the contract (tokens,…

designesy_agent_json

Get the Designesy agent discovery document (/.well-known/agent.json) as reference data: the org identity, authority, discovery endpoints, package index, machine exports, permission policy, contact, an…

designesy_llms_txt

Get the Designesy /llms.txt brief as reference data: what Designesy is, canonical links, topics, the published package list, machine exports, standing rules, and contact. Use this first when you don't…

designesy_llms_full_txt

Get the Designesy /llms-full.txt brief as reference data: authority, discovery endpoints, topics, every published package with its links, standing rules, and anti-patterns. Use this for a fuller pictu…

designesy_score

Score a live URL against the Designesy design contract: a deterministic 45-check verification engine that returns a numeric score, letter grade (A-F), and per-check breakdown. Use this to audit whethe…

designesy_tokens_score

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 as a Candidate Recommenda…

designesy_a11y_score

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 aud…

designesy_motion_score

Validate one Lottie animation file against the Designesy motion contract: its ten checks (m01-m10), drawn from the Lottie spec v1.0.1 and the Designesy §16 Ten Non-Negotiable Motion Standards. Each ch…

designesy_drift_score

Score a live URL for AI-generated UI drift. Its 12 checks detect the four documented 2026 drift failure modes: token fabrication (var() references with no fallback to custom properties declared nowher…

designesy_readiness_score

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 endpo…

designesy_guardrails

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,…

designesy_monitor_score

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 registe…

designesy_compare

Diff two design systems from live URLs, using the only URL-scoped design-token diff engine. Fetches both URLs in parallel, extracts their :root custom properties, and produces a structured diff across…

designesy_report

Generate a unified design-intelligence report for a single URL, the synthesis capstone. Fires /score (45-check audit), /drift (12-check drift radar), and /readiness (10-check AI readiness) in parallel…

Resources · 1

report-app

Interactive design-intelligence report dashboard: composite grade, sub-engine scores, and check-by-check breakdown with tabbed navigation. The synthesis capstone rendered inline.

ui://designesy/report-app

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "playwright_mcp_server": {
      "url": "https://www.designesy.org/api/mcp",
      "transport": "streamable-http"
    }
  }
}

Or run it locally:

Runs locally from its PyPI package (v1.13.9). Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "playwright_mcp_server": {
      "command": "uvx",
      "args": [
        "designesy-mcp@1.13.9"
      ]
    }
  }
}

Source: github.com/LE-VAI/designesy-org