Roast My Design System (pencilrebel) MCP Server

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

People who work with claude code plugin, design system and skill and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-09-26 · ★ 25 · VERIFIED 2026-09-30

MIT · JavaScript servers · how we verify → /methodology

01 · Install Roast My Design System (pencilrebel)

Claude Code

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

Claude Desktop / Cursor / VS Code - add to config

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

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package roast-my-design-system - unscoped; check the name against the project README before installing

registry namespace io.github.pencilrebel is GitHub-verified and matches the repo owner

03 · What Roast My Design System (pencilrebel) can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v9.2.2 · 2026-09-29

The list of fixes has a plainer heading. "Fix what makes agents guess" · sat directly under the card that asks "Where will your agent have to · guess?", and the two read as one question asked twice. The list is now…

v9.2.1 · 2026-09-29

The report and the live check (the edit hook, the MCP validate tool and the · review) are two judges reading one repo, and each kept its own idea of what · a duplicate is. They now ask one function, and on 17 repos…

v9.2.0 · 2026-09-29

A button built from scratch is now a warning when the repo already · has a Button. The live check (the edit hook, the MCP validate tool and · the review) only judged values until now. On Twenty, agents with the · hook…

04 · Who maintains Roast My Design System (pencilrebel)

Roast My Design System is maintained by pencilrebel. It's the only MCP server we track from this author; the repo dates to Jul 2026.

05 · Facts

repository: github.com/pencilrebel/roast-my-design-system
website: https://pencilrebel.github.io/roast-my-design-system/
category: developer tools - actively maintained as of 2026-09-30.
release cadence: 10+ releases in the last 90 days (latest 2026-09-29)
registry: io.github.pencilrebel/roast-my-design-system (active, first published 2026-08-20 · 5 versions)
packages: npm:roast-my-design-system

06 · Roast My Design System (pencilrebel) FAQ

What is Roast My Design System (pencilrebel)?

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

Is Roast My Design System (pencilrebel) still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-26 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Roast My Design System (pencilrebel)?

Run `npx -y roast-my-design-system`. You can also paste the ready-made client config above.

Does Roast My Design System (pencilrebel) run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Roast My Design System (pencilrebel)

Alternatives to Roast My Design System (pencilrebel)

Maintained developer tools servers if Roast My Design System (pencilrebel) isn't the fit.

Pairs well with

Servers that cover what Roast My Design System (pencilrebel) doesn't - only shown when the pairing reason fits the companion.

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