Roast My Design System

Name: Roast My Design System
Author: gregkozakiewicz

de gregkozakiewiczversión 10.2.4i★ –iSe ejecuta en tu computadora

Nombre en el registroio.github.gregkozakiewicz/roast-my-design-system

Instalar

Resumen

Descripción del creador (original en inglés)

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

Los tres pilares de PopNx MCP

Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.

Opinión de usuariosiAún no hay reseñasLas reseñas se abrirán junto con las cuentas en una etapa posterior
Nuestras revisiones básicasi1 de 1 superadasRevisado con información pública; el código aún no se ha escaneado
UsoiInicial↓ 369/sem · ★ –

Qué puedes hacer con él

Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.

Conexión: Se ejecuta en tu computadora
Transporte: stdio
Categoría: Diseño, imágenes y audio

Instalación

Elige la app de IA que usas y copia la configuración.

Antes de instalar

Revisiones básicas: 1 de 1 superadas
Se ejecuta en tu computadora con los permisos de tu usuario (archivos, red, apps).
El registro no indica ninguna clave que completar.

Necesitas

npmNode.js instalado (para el comando npx)

¿Qué app usas?

ClaudeClaude CodeCursorVS CodeChatGPT

Elige tu app arriba. La recordamos, así que la próxima vez el botón dirá “Instalar en …”.

Abre Claude Desktop → Settings → Developer → Edit Config y pega esto en claude_desktop_config.json

{
  "mcpServers": {
    "roast-my-design-system": {
      "command": "npx",
      "args": [
        "-y",
        "roast-my-design-system",
        "--mcp"
      ]
    }
  }
}

Ejecuta esto en tu terminal

claude mcp add roast-my-design-system -- npx -y roast-my-design-system --mcp

Abrir en Cursor

O copia la configuración tú

Pégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json

{
  "mcpServers": {
    "roast-my-design-system": {
      "command": "npx",
      "args": [
        "-y",
        "roast-my-design-system",
        "--mcp"
      ]
    }
  }
}

Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.

Abrir en VS Code

O copia la configuración tú

Pégalo en .vscode/mcp.json de tu proyecto

{
  "servers": {
    "roast-my-design-system": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "roast-my-design-system",
        "--mcp"
      ]
    }
  }
}

Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.

Este se ejecuta en tu computadora, y ChatGPT solo puede conectarse a servidores en internet. Elige otra app.

Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.

Esta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.

Qué puede hacer

Se ejecuta en tu computadora; la lista de herramientas aparece en tu app de IA después de instalarlo.

Revisiones básicasi

Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 8 nov 2026

✓ Superada
El creador coincide con el repo
El nombre en el registro se verificó con la cuenta de GitHub gregkozakiewicz, dueña del repo
… Aún sin revisar
Sigue en mantenimiento
Todavía no hemos leído este repo en GitHub
… Aún sin revisar
Tiene licencia
Todavía no hemos leído este repo en GitHub
– No aplica
El endpoint responde
Este se ejecuta en tu computadora; no hay endpoint en internet
– No aplica
Inicio de sesión con OAuth
Se ejecuta en tu computadora y usa ajustes locales en su lugar
… Aún sin revisar
Sin instrucciones ocultas en las descripciones de herramientas
Se ejecuta en tu computadora; solo podemos leer listas de herramientas de endpoints en internet

Comparado con otros en Diseño, imágenes y audioi

Más estrellas que el 0% de los otros 2795 servidores de esta categoría
Publicado en el registro más recientemente que el 97% de los otros 2795 servidores de esta categoría
Revisiones básicas iguales o mejores que el 100% de los otros 2795 servidores de esta categoría

Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.

Preguntas frecuentes

¿Es seguro Roast My Design System?

Superó 1 de 1 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.

¿Qué claves o códigos necesita?

El registro no indica ninguna clave obligatoria, aunque algunos servidores te piden iniciar sesión la primera vez que los usas.

¿Se ejecuta en mi computadora o en la nube?

Se ejecuta en tu computadora. Tu app de IA lo inicia cuando hace falta, y los datos no pasan por los servidores del creador (a menos que el propio servidor llame a un servicio en línea).

¿Sigue en mantenimiento?

El repo de GitHub cambió por última vez –, y la última versión (10.2.4) llegó al registro ayer.

¿Qué apps pueden usarlo?

Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. También necesitas Node.js en tu computadora.

¿Qué puedo usar en su lugar?

En la misma categoría: Figma Context MCP, Claude Real Video, Figma MCP Server

Alternativas

Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.

Cómo leer una tarjeta:↓ Descargas por semanai★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi

Figma Context MCP

Give your coding agent access to your Figma data. Implement designs in any framework in one-shot.

de GLipsMuy usado↓ 161,2 mil/sem★ 16,2 milActualizado hace 5 meses

Se ejecuta en tu computadora

Instalar

Claude Real Video

Let any LLM watch a video locally — and search everything it has ever watched.

de HUANGCHIHHUNGLeoMuy usado↓ 1,1 mil/sem★ 2,3 milActualizado hace 2 meses

Se ejecuta en tu computadora

Instalar

Figma MCP Server

The Figma MCP server brings Figma design context directly into your AI workflow.

de figmaMuy usado★ 2,2 milActualizado hace 13 meses

Se ejecuta en la nube✓ mcp.figma.com

Instalar

README del creador

Abrir el README

Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.

roast-my-design-system

Find where your AI agent will invent UI.

Your AI can write the UI. This makes sure it writes *your* UI.

npx roast-my-design-system@latest

Run it at the root of a UI repo. One second later, a report opens. No account. No network. No telemetry. Nothing in your repo changes.

Website, with the live example reports: www.roastds.com.

Version history is in CHANGELOG.md.

The idea

An agent copies what it finds.

It invents where the repo has no answer.

We tested this on 10 real open-source products, in 355 agent sessions, with and without this tool.

Findings each session added, counted by this tool's own rules:

Task	Model	When	Without roast	Roast MCP and rules installed	Roast plugin with its edit hook
A new chart and a new component, 4 products, 3 runs each	Sonnet 5	Oct 2026, roast 10.1	21 in 24 runs	not run	7 in 24 runs
A new chart and a new component, 4 products, 3 runs each	Haiku 4.5	Oct 2026, roast 10.1	72 in 24 runs	not run	1 in 24 runs
Add a panel, build a dashboard, tighten a list (80 sessions)	Sonnet 5	Sept 2026	7	9	not run
A Christmas theme, 10 products	Sonnet 5	Sept 2026	28	2	not run
A new chart, 4 products, 5 runs each	Sonnet 5	Sept 2026	10 in 20 runs	not run	0 in 20 runs
A new chart, 4 products	Haiku 4.5	Sept 2026	25	39	0 in 14 of 15 runs
Chart, status colour, empty state, new component	Haiku 4.5	Sept 2026	42 in 16 runs	49 in 16 runs	3 in 51 runs

Routine work stayed on-system with or without the tool. Work that needed something new did not.

An agent does not always call a tool when it should. In October, Sonnet called the MCP tools in 7 of 24 sessions and Haiku in 2 of 24. The edit hook runs without being asked. That is the column with the lowest numbers.

Where did the agent invent? Where the repo had nothing to copy. Dub has no chart palette. Its own charts hardcode 17 colours. Asked for a chart, Haiku hardcoded 9 more. In October, 5 of the 7 findings Sonnet left with the plugin on were chart colours on Dub. The agent kept them and wrote a comment saying the repo has no chart palette.

So the mess an agent adds is a map of the gaps in your system.

This tool draws the map.

Roast. Teach. Guard.

Roast the repo to find its real design system, the mess in it, and the gaps.

Teach the agent, through generated rules and a local MCP server.

Guard every edit, so the agent does not have to remember to ask.

ROAST what is in the repo, and what is missing ↓ TEACH rules in the agent files, answers over MCP ↓ GUARD every edit checked, the PR gated

What you get

Where will your agent have to guess?

The first thing the report says: the places where the repo has no answer yet, or "No gaps found".

the gap, in one line
the files that prove it
the one move that closes it

One gap is known for certain today, because the runs found it: charts hardcoding colours in a repo with no chart palette. 43 of 126 public repos look like that. A gap joins the list when it has been measured.

Fixes you can make right now to increase the health score

The mess the agent will copy, ranked by what fixing it is worth.

what was found
where, with the file path
why it matters
what to change
a copy button with the fix prompt for your agent

Fix, rescan, press the next button.

A score you can defend in a meeting

0 to 100. The same number every run.

Measured against three yardsticks: the ideal norms of a design system, the median of 34 product repos at the core of a 119-repo benchmark, and 10 reputable systems (Primer, Polaris, Carbon, shadcn/ui and others).

Monorepos get a score per package. packages/ui at 80 stops hiding apps/web at 40.

Every finding, with its file path

every hardcoded colour, and its near-identical twin
every spacing value off the scale
every duplicated component

And 8 more kinds, all in What it measures. One HTML file. Open it, Slack it, email it.

The colour usage bar shows where the repo's colour comes from: of every 100 colour uses, how many read a theme colour by name, how many use Tailwind's palette, and how many are strays written by hand. It follows CSS variables, Tailwind themes, Sass and Less variables and JavaScript theme objects to do the counting.

The header names what the repo is built on: shadcn/ui, a Tailwind theme, MUI, Mantine, Chakra or Ant Design, and both kits when a repo uses two.

Rules for your agent

Generated from your repo, into design-system-rules.md:

canonical components the file of colour, spacing and type values known duplicates to avoid spacing steps typefaces the kit's own vocabulary

--apply writes them into every agent file you have: Claude, Cursor, GitHub Copilot, Windsurf. Every scan also checks the rules you already have for stale references.

A script does the counting

Every number comes from a deterministic read of your files. Claude writes the explanation, labelled as written by AI and kept apart from the numbers.

How the runs were done

Claude Code, headless, on 10 public products pinned to one commit each: cal.com, Dub, Metabase, Plausible, SigNoz, trigger.dev and four more. 259 sessions in September 2026 and 96 in October 2026 on roast 10.1, with Sonnet 5 and Haiku 4.5. The October sessions repeat the chart and new-component tasks on Plausible, SigNoz, trigger.dev and Dub at the same commits. Every changed file was judged by this tool's rules at the end of the session and at the pinned commit. A finding counts only if the session added it.

Nothing was rendered. Zero findings means the code follows these rules. It does not mean the design was reviewed. Method, tables and limits are in the research write-up, which will be published separately.

Live examples

Eleven reports, hosted exactly as the tool writes them. Every number deterministic, every path real.

[npx shadcn create, fresh](https://www.roastds.com/examples/shadcn-create-fresh) (factory install, all 61 components): read as a fresh install, "the score is the kit's, not yours"; 13 colours, every theme variable in place, shadcn's own 24 bracket values named and not counted. No score.
[Unleash](https://www.roastds.com/examples/unleash-mui) (MUI): 1,109 files import the kit and the theme is read 6,166 times; 4 colours and 2 spacings per 100 kit files are written onto components. Score 60.
[Metabase](https://www.roastds.com/examples/metabase-mantine) (Mantine): its own wrapper over Mantine counts as the kit, so 2,679 files are read instead of 392; nothing written onto components, 2 spacings per 100 kit files. Score 47.
[SigNoz](https://www.roastds.com/examples/signoz-antd) (Ant Design): 2 colours and 7 spacings per 100 kit files written in style objects where a token exists. Score 51.
[Apache Airflow](https://www.roastds.com/examples/airflow-chakra) (Chakra UI): no colours written onto components, 4 spacings per 100 kit files as pixel strings where a space step exists. Score 43.
[vercel/ai-chatbot](https://www.roastds.com/examples/vercel-ai-chatbot) (shadcn install): 71 values like [13px] written outside the Tailwind scale, and 66 palette colours per 100 files where a theme variable exists; Claude's notes embedded. Score 80.
[excalidraw/excalidraw](https://www.roastds.com/examples/excalidraw-excalidraw): 78 off-scale spacing values and 90 !important declarations. Score 55.
[dubinc/dub](https://www.roastds.com/examples/dubinc-dub): 642 arbitrary bracket values, 21 duplicated components, and the chart-palette gap named. Score 20.
[telekom/scale](https://www.roastds.com/examples/telekom-scale) (Stencil): 95 Stencil components read by tag; 66 spacing values outside the scale where about 12 would do; Claude's notes embedded. Score 55.
[magicuidesign/magicui](https://www.roastds.com/examples/magicui) (registry): counted on the components it publishes, 52 off-theme colours per 100 files in the code it ships, its docs site kept out and named. Score 78.
[adobe/spectrum-web-components](https://www.roastds.com/examples/adobe-spectrum) (Lit): 740 colour tokens with 8 hardcoded colours beside them, and 37 !important declarations. Score 83.

The full report for vercel/ai-chatbot. The verdict answers what the agent will learn here, the gap section comes first, then "What the repo teaches the agent", Claude's read of the scan:

The same report in light mode (one file, built-in toggle):

Why the numbers hold

Deterministic. A zero-dependency Node script reads every file and returns the same numbers every run. About a second on a normal repo.
Read-only. No network. No telemetry. The test suite fails if package.json ever declares a dependency. Every release runs 468 checks against 29 sample repos before it is tagged; the fixtures and their snapshots live in tests/, one JSON file each.
Honest gaps. What the scan cannot read says "not measured" and drops out of the score.
Honest exclusions. Tests, stories, docs sites, artwork and email templates are left out. Your own exclusions are printed in the report header with file counts.
A real benchmark. 119 public repos. A core fleet of 34 React repos sets the medians; the rest feed the kit and web-component groups, so a shadcn repo is compared with shadcn repos and a Lit system with Lit and Stencil systems. The builder is in tools/benchmark/.
Importable scoring. scoreHarvest(harvest) returns the score and metrics as plain data. The report and a CI check get the same numbers.

The long version, with scan scoping and what the plugin runs on your machine, is in docs/reference.md.

Works with

Frameworks

React, Next.js, Remix, Vite Stencil, Lit, custom elements

Kits and styling

Tailwind, sha

Solo se muestra el principio; lee el resto en el repo

Roast My Design System

Resumen

Los tres pilares de PopNx MCP

Qué puedes hacer con él

Instalación

Antes de instalar

Qué puede hacer

Revisiones básicasi

El creador coincide con el repo

Sigue en mantenimiento

Tiene licencia

El endpoint responde

Inicio de sesión con OAuth

Sin instrucciones ocultas en las descripciones de herramientas

Comparado con otros en Diseño, imágenes y audioi

Preguntas frecuentes

Alternativas

Figma Context MCP

Claude Real Video

Figma MCP Server

README del creador

roast-my-design-system

Find where your AI agent will invent UI.

The idea

An agent copies what it finds.

It invents where the repo has no answer.

Roast. Teach. Guard.

What you get

Where will your agent have to guess?

Fixes you can make right now to increase the health score

A score you can defend in a meeting

Every finding, with its file path

Rules for your agent

A script does the counting

How the runs were done

Live examples

Why the numbers hold

Works with

Frameworks

Kits and styling