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storybook-mcp

storybook-mcp is an MCP server for Cursor from MetaMask/metamask-design-system. Its token cost is not measured, scanned A, original, no licence file.

A local MCP server for Storybook in the MetaMask design system. Storybook is a tool for developing and viewing interface components in isolation.

In plain words
What is it for?
It is for connecting an agent to Storybook-related tools in that design-system project.
Why use it?
The description does not specify which Storybook actions or information the server provides.

MCP server for Cursor

Written for Cursor: installed under .cursor/. Also seen: listed in .cursor/mcp.json.

not rated 36repo yesterday A scan tokens not measured no licence

Good fit It is for connecting an agent to Storybook-related tools in that design-system project.

Compare 6 mcp servers from other repositories ↓
Install with agentmods
npx agentmods add mcp/metamask/metamask-design-system/storybook-mcp
View source ↗ MetaMask/metamask-design-system metamask.github.io
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/MetaMask/metamask-design-system

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for storybook-mcp

README.md
[![agentmods](https://agentmods.dev/badge/mcp/metamask/metamask-design-system/storybook-mcp/github.svg)](https://agentmods.dev/mcp/metamask/metamask-design-system/storybook-mcp)
Your own site
<a href="https://agentmods.dev/mcp/metamask/metamask-design-system/storybook-mcp"><img src="https://agentmods.dev/badge/mcp/metamask/metamask-design-system/storybook-mcp/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for storybook-mcp

Your own site · 80×15
<a href="https://agentmods.dev/mcp/metamask/metamask-design-system/storybook-mcp"><img src="https://agentmods.dev/badge/mcp/metamask/metamask-design-system/storybook-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Security

Grade A, and why

storybook-mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/mcp.json · 5 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 5 lines scan A c2886cdc5433

Subscribe to this mod's changes

storybook-mcp is an MCP server published in the GitHub repository MetaMask/metamask-design-system (36 stars, last pushed yesterday), with no licence file. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-08.

Frontend
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