Ext Ops Panel
Open dashboard

Design Constraint Validator

Validate design tokens for accessibility, scales, and design-system constraint consistency.

MCP server · by CseperkePapp

About

Design Constraint Validator is an MCP server published by CseperkePapp. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-13.

What it asks for

  • Runs on your machine

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.

Package

npm design-constraint-validator (design-constraint-validator on npm)

  • npm downloads/week: 49 (2026-10-13)
  • npm downloads/month: 351 (2026-10-13)
  • Latest version on npm: 2.3.0, published 2026-06-14
  • Declared version 2.3.0 is not listed on npm

npm facts come from the public npm registry (registry.npmjs.org, api.npmjs.org). Each figure is the registry's own and is never added to another. A registry that publishes no figure shows none: no number is not zero.

Works with

  • Claude Code
  • Codex
  • Cursor
  • VS Code
  • Copilot CLI

A one-click link opens the client, which asks you to confirm before it adds the server.

From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.

Connect

Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.

As a local MCP server: npm package

Built from what Official MCP Registry declares.

Claude CodeTerminal
claude mcp add --transport stdio design-constraint-validator -- npx -y design-constraint-validator
Codex~/.codex/config.toml
[mcp_servers.design-constraint-validator]
command = "npx"
args = ["-y", "design-constraint-validator"]
Cursor~/.cursor/mcp.json
{
  "mcpServers": {
    "design-constraint-validator": {
      "command": "npx",
      "args": [
        "-y",
        "design-constraint-validator"
      ]
    }
  }
}

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Official MCP Registry (Open the registry record) Listed 2.3.0 Downloads/month (npm): 351
Downloads/week (npm): 49
Forks (GitHub): 0
Stars (GitHub): 0
Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

What changed

Nothing has moved on this plugin since we started watching it.

Similar plugins

Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.

  • validator dev.swatchdog/validator

    On-demand drift checks: declared CSS color, radius, spacing & type vs your own tokens or a pack

    by swatchdog.dev · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • designfit

    Validate AI-built front-ends against Figma by tokens and geometry, not pixels.

    by as9978 · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • CSS Crème

    Give your agent a real design system: tokens, measured WCAG contrast, and rules to follow.

    by csscreme.com · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • standby-design-mcp io.github.KarstenKreh/standby-design-mcp

    Generate design systems: OKLCH colors, fluid type scales, spacing, shape, icon and motion tokens.

    by KarstenKreh · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Roast My Design System

    Audit your Design System and serve your Agent the rules that keep AI-written UI on-system.

    by gregkozakiewicz · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • melta UI

    AI-Ready design system MCP: melta UI tokens, component contracts, 107 rules, check_html self-verify

    by tsubotax · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • uxloom io.github.uxloom-dev/uxloom

    Agent-native UI/UX design validation: journey completeness, state coverage, and WCAG checks.

    by uxloom-dev · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • tokven-mcp io.github.Mihkel00/tokven-mcp

    Generate design token systems from a hex color — OKLCH-derived, WCAG-validated, multi-format

    by Mihkel00 · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Design System MCP

    Ground truth about your React design system for coding agents, plus a UI linter they can run.

    by dgesteves · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • tesserai

    Your project's design system for coding agents: tokens, components, contrast checks, guidelines.

    by tesserai.design · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

Similar plugins by marketplace

The same question asked of one marketplace at a time: is there an analog of this plugin there?

Has a listing on Claude Code: claude-plugins-community (5)
  • designs-drift

    design-drift prevents AI agents from drifting away from your design system in real time. Lock any of existing brands design systems and every Write/Edit to a UI file is…

    by ihlamury · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • hig-compliance-auditor

    Audits codebases and design systems against Apple's Human Interface Guidelines. Scans SwiftUI, UIKit, CSS, HTML, and JavaScript for HIG violations across iOS, iPadOS, macOS…

    by omrajguru05 · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • mcp-server io.github.cap-js/mcp-server

    Model Context Protocol (MCP) server for AI-assisted development of CAP applications.

    by cap-js · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Claude Code: claude-plugins-community · Describes nearly the same job

  • design-with-claude

    29 specialized design agents as Claude Code commands. Bring expert design knowledge into every coding session - accessibility, motion design, design systems, color theory…

    by imsaif · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • scalekit-mcp-auth

    Secure MCP servers with OAuth 2.1, token introspection, dynamic client registration, and CIMD so AI agents can call your MCP tools with verified identities

    by scalekit-inc · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Claude Code: claude-plugins-official (5)
  • figma

    Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…

    by figma · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • mcp-server io.github.cap-js/mcp-server

    Model Context Protocol (MCP) server for AI-assisted development of CAP applications.

    by cap-js · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Claude Code: claude-plugins-community · Describes nearly the same job

  • ui-theme-designer

    Plugin for coding agents working with UI theme designer. Bundles two skills: how-to and conceptual answers about UI theme designer on BTP, and questions about the SAP Design…

    by SAP · Plugin bundle

    Listed on: Claude Code: claude-plugins-official · Describes nearly the same job

  • mdk-mcp-server io.github.SAP/mdk-mcp-server

    Model Context Protocol (MCP) server for AI-assisted development of MDK applications.

    by SAP · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Claude Code: claude-plugins-community · Describes nearly the same job

  • mcp-server-dev

    Skills for designing and building MCP servers that work seamlessly with Claude. Guides you through deployment models (remote HTTP, MCPB, local), tool design patterns, auth, and…

    by Anthropic · Plugin bundle

    Listed on: Claude Code: claude-plugins-official · Describes nearly the same job

Has a listing on Claude: knowledge-work-plugins (5)
  • figma

    Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…

    by figma · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • Design

    Accelerate design workflows — critique, design system management, UX writing, accessibility audits, research synthesis, and dev handoff. From exploration to pixel-perfect specs.

    by Anthropic · Plugin bundle

    Listed on: Claude: knowledge-work-plugins · Describes nearly the same job

  • Desktop Commander

    MCP server for terminal commands, file operations, and process management

    by wonderwhy-er · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Docker MCP Catalog, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • sanity

    Sanity content platform integration with MCP server, agent skills, and slash commands. Query and author content, build and optimize GROQ queries, design schemas, and set up Visual…

    by sanity-io · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • Val Town

    Build and deploy on Val Town. Bundles the Val Town MCP server and platform skills (HTTP vals, cron/intervals, SQLite, email, OAuth, React UI, third-party integrations, templates).

    by val-town · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins · Describes nearly the same job

Has a listing on Codex: openai-curated (openai/plugins) (5)
  • MagicPath

    Use MagicPath to find, inspect, install, create, and edit UI components from Codex.

    by MagicPathAI · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Product Design

    The Product Design plugin is built for turning early ideas into prototypes teams can review. It starts design and build work by confirming the brief, then helps teams explore…

    by OpenAI · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Figma

    Figma workflows for design implementation, Code Connect templates, and design system rule generation.

    by Figma · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Build Web Apps

    Build web apps with frontend asset design, browser testing, UI components, payments, and database guidance.

    by OpenAI · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Cloudflare

    Cloudflare platform plugin with curated skills for Workers, Wrangler, and Agents SDK plus the official Cloudflare API MCP server.

    by Cloudflare · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

Has a listing on Community GitHub marketplaces (5)
  • designfit

    Validate AI-built front-ends against Figma by tokens and geometry, not pixels.

    by as9978 · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • Roast My Design System

    Audit your Design System and serve your Agent the rules that keep AI-written UI on-system.

    by gregkozakiewicz · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • onsystem

    Keeps coding agents on your design system: knows your real components, props, variants and tokens.

    by dgesteves · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • saglitzdesign-mcp io.github.HalidSaglam/saglitzdesign-mcp

    Expert design & marketing MCP: UI/UX, design languages, SEO/GEO, tokens, a11y, recipes.

    by HalidSaglam · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • canicode io.github.let-sunny/canicode

    Analyze Figma designs for dev & AI readiness. 39 rules, scoring, HTML reports.

    by let-sunny · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Copilot CLI: github/awesome-copilot (5)
  • figma

    Figma design platform integration. Access design files, extract component information, read design tokens, and translate designs into code. Bridge the gap between design and…

    by figma · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins, Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • ui-theme-designer

    Equips AI coding agents with knowledge and tooling for working with UI theme designer, the SAP Design System, and SAP Fiori design tokens.

    by SAP · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • typescript-mcp-development

    Complete toolkit for building Model Context Protocol (MCP) servers in TypeScript/Node.js using the official SDK. Includes instructions for best practices, a prompt for generating…

    by Awesome Copilot Community · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • go-mcp-development

    Complete toolkit for building Model Context Protocol (MCP) servers in Go using the official github.com/modelcontextprotocol/go-sdk. Includes instructions for best practices, a…

    by Awesome Copilot Community · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • BLEA

    Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.

    by Nitmi · MCP server

    Listed on: Official MCP Registry, Copilot CLI: github/awesome-copilot · Describes nearly the same job

Has a listing on Copilot CLI: github/copilot-plugins (5)
  • mcp-apps

    Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • canvas-apps

    Build Power Apps Canvas Apps using the Canvas Authoring MCP server.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • microsoft-365-agents-toolkit

    Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • model-apps

    Build and deploy Power Apps generative pages for model-driven apps with specialist agents for planning, entity creation, and parallel code generation. Requires PAC CLI >= 2.7.0…

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes a similar job

  • code-apps-preview

    Build and deploy Power Apps code apps using React, Vite, and Power Platform connectors.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes a similar job

Has a listing on Cursor: cursor/plugins (5)
  • Agent Compatibility

    CLI-backed repo compatibility scans plus agents that audit startup, validation, and docs against reality.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Cursor SDK

    Build apps, scripts, and automations with the TypeScript SDK.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Statsig

    Inspect and manage feature gates, experiments, dynamic configs, and metrics.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Tailscale

    Let Grok Bot reach MCP servers on your private Tailscale network. Sign in to Tailscale to connect your tailnet; Grok Bot joins it as one tagged device and only reaches the hosts…

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • playwright-mcp io.github.microsoft/playwright-mcp

    Playwright Tools for MCP

    by microsoft · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Cursor: cursor/plugins, Docker MCP Catalog · Describes nearly the same job

Has a listing on Docker MCP Catalog (5)
  • Hackle

    Remote MCP server for the Hackle Admin API: experiments, feature flags, remote config, messaging.

    by hackle-io · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog · Describes nearly the same job

  • Dynatrace-mcp io.github.dynatrace-oss/Dynatrace-mcp

    [DEPRECATED] Dynatrace MCP Server. Migrate to dynatrace-for-ai or Dynatrace Remote MCP Server.

    by dynatrace-oss · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog · Describes nearly the same job

  • Desktop Commander

    MCP server for terminal commands, file operations, and process management

    by wonderwhy-er · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-official, Docker MCP Catalog, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • VeyraX

    VeyraX MCP is the only connection you need to access all your tools in any MCP-compatible environment.

    by VeyraX · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Arm MCP Server

    Official Arm MCP server for code migration, optimization, and Arm architecture guidance

    by arm · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog · Describes nearly the same job

Has a listing on Official MCP Registry (5)
  • validator dev.swatchdog/validator

    On-demand drift checks: declared CSS color, radius, spacing & type vs your own tokens or a pack

    by swatchdog.dev · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • designfit

    Validate AI-built front-ends against Figma by tokens and geometry, not pixels.

    by as9978 · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • CSS Crème

    Give your agent a real design system: tokens, measured WCAG contrast, and rules to follow.

    by csscreme.com · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • standby-design-mcp io.github.KarstenKreh/standby-design-mcp

    Generate design systems: OKLCH colors, fluid type scales, spacing, shape, icon and motion tokens.

    by KarstenKreh · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Roast My Design System

    Audit your Design System and serve your Agent the rules that keep AI-written UI on-system.

    by gregkozakiewicz · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Is this your plugin?

Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.

Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built