styling-mcp-setup

styling-mcp-setup is a skill for Claude Code from AmadeusITGroup/otter. It costs 63 tokens per session (988 once invoked), scanned A, original, BSD-3-Clause.

A setup guide for a design-token server. Design tokens are named values such as colors, spacing, and font sizes that keep an interface visually consistent; the server lets AI assistants look them up.

In plain words
What is it for?
Use it to install and configure the styling server, generate its token metadata with Style Dictionary, and make token-listing and token-search tools available.
Why use it?
It prevents assistants from guessing or hardcoding styling values when the project already has a token library. It also explains how to create the metadata file the server reads.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Claude Code.

Part of the ama-styling plugin — 2 skills shipped together

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.

agentmods
npx agentmods add skills/amadeusitgroup/otter/styling-mcp-setup
Any agent
npx skills add AmadeusITGroup/otter --skill styling-mcp-setup
Clone the repo
git clone --depth 1 https://github.com/AmadeusITGroup/otter

Made for: Claude Code.

Or install ama-styling, the plugin that ships this one along with the rest of its 2 skills.

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 styling-mcp-setup

README.md
[![agentmods](https://agentmods.dev/badge/skills/amadeusitgroup/otter/styling-mcp-setup.svg)](https://agentmods.dev/skills/amadeusitgroup/otter/styling-mcp-setup)
Your own site
<a href="https://agentmods.dev/skills/amadeusitgroup/otter/styling-mcp-setup"><img src="https://agentmods.dev/badge/skills/amadeusitgroup/otter/styling-mcp-setup.svg" alt="Measured on agentmods" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 988 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.00988
Opus 5 $0.00032 $0.00494
Sonnet 5 $0.00013 $0.00198
Haiku 4.5 $0.00006 $0.00099

Measured 6d ago against content hash 8bc27b7c2725, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

styling-mcp-setup 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 6d 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.

tools/llm/plugins/ama-styling/skills/styling-mcp-setup/SKILL.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

@ama-styling/mcp Server Setup

Configure the @ama-styling/mcp server so AI assistants can discover, list, and recommend design tokens from your project's token library instead of guessing or hardcoding values.

Prerequisites

  • A styling.metadata.json file generated by @ama-styling/style-dictionary using the ama/json/metadata format.
  • Node.js (LTS recommended) for running npx.

Generating the Metadata File

The MCP server reads a styling.metadata.json that contains all your design tokens with their metadata, values, and Otter extensions. To generate it:

  1. Install @ama-styling/style-dictionary, which provides the Ama transforms

    npm install --save-dev @ama-styling/style-dictionary
    
  2. Add the ama/json/metadata format to your Style Dictionary config (sd.config.js or style-dictionary.config.json):

    export default {
      source: ['tokens/**/*.json'],
      platforms: {
        metadata: {
          transformGroup: 'ama/css',
          buildPath: './',
          files: [{
            destination: 'styling.metadata.json',
            format: 'ama/json/metadata'
          }]
        }
      }
    };
    
  3. Build the tokens:

    npx style-dictionary build
    

    This produces styling.metadata.json at the project root.

Configuration

The server runs via npx with no permanent install required.

Claude Code

Add to .mcp.json at the project root:

{
  "mcpServers": {
    "ama-styling": {
      "command": "npx",
      "args": ["-y", "-p", "@ama-styling/mcp", "ama-styling-mcp-start", "--metadata", "./styling.metadata.json"]
    }
  }
}

GitHub Copilot (VS Code)

Add to .vscode/mcp.json:

{
  "servers": {
    "ama-styling": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "-p", "@ama-styling/mcp", "ama-styling-mcp-start", "--metadata", "./styling.metadata.json"]
    }
  }
}

Read the full file on GitHub · 130 lines

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. 6d ago First seen · 130 lines · 63 tokens per session scan A 8bc27b7c2725

Subscribe to this mod's changes

styling-mcp-setup is a skill published in the GitHub repository AmadeusITGroup/otter (57 stars, last pushed yesterday), licensed BSD-3-Clause. It adds 63 tokens to every session and 988 once invoked, about $0.0003 per session on Opus 5. 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 2026-08-30.

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