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Shopify Speed Check

by skaidigital.com · remote · no sign-in to list tools · v1.0.0 · published by com.skaidigital

Shopify PageSpeed, Core Web Vitals and plan-fee checks for any store, remote MCP.

Changes · 2
CompareRegistry entry

3 tools: 2 change things and 1 only read.

Scanned Oct 21, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http shopify-speed-check https://tools.skaidigital.com/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warncheck_shopify_store_speed

    The server marks "check_shopify_store_speed" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "check_shopify_store_speed" says "store": a word for a change.

    What this check looks for
  • Warndetect_shopify_store

    The server marks "detect_shopify_store" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "detect_shopify_store" says "store": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

3 tools

Changes things 2Claude Code: ask
  • check_shopify_store_speedTest a Shopify store's speed with Google PageSpeed Insights (mobile and desktop) and real-user Core Web Vitals, list the apps and scripts slowing it down, and estimate what a headl…1 finding

    Why it is in this group

    • The name "check_shopify_store_speed" says "store": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "check_shopify_store_speed" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "check_shopify_store_speed" says "store": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Test a Shopify store's speed with Google PageSpeed Insights (mobile and desktop) and real-user Core Web Vitals, list the apps and scripts slowing it down, and estimate what a headless build could change, with its assumptions. Takes 10 seconds to 2.5 minutes; results are cached for 24 hours.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • detect_shopify_storeDetect whether a site is a Shopify theme store or a headless Shopify storefront, and which theme it uses.1 finding

    Why it is in this group

    • The name "detect_shopify_store" says "store": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "detect_shopify_store" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "detect_shopify_store" says "store": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Detect whether a site is a Shopify theme store or a headless Shopify storefront, and which theme it uses. Fetches only the public page; runs no speed test.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 1Claude Code: allow
  • calculate_shopify_feesCompare the monthly and annual cost of Shopify Basic, Grow, Advanced and Plus for a sales volume and payment mix, with break-even sales between plans and requirements only Plus cov…No findings

    Why it is in this group

    • The description's first verb is "compare": a word for reading.
    Description, as the server wrote it
    Compare the monthly and annual cost of Shopify Basic, Grow, Advanced and Plus for a sales volume and payment mix, with break-even sales between plans and requirements only Plus covers. Uses Shopify's published US prices; the variable Plus platform fee is unpublished, so pass plusQuoteMonthly if you have a quote. Only monthlyGmv is required; the rest defaults to one brand fully on Shopify Payments with yearly billing.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http shopify-speed-check https://tools.skaidigital.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__shopify-speed-check__calculate_shopify_fees"
    ],
    "ask": [
      "mcp__shopify-speed-check__check_shopify_store_speed",
      "mcp__shopify-speed-check__detect_shopify_store"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as shopify-speed-check. Review it before you use it.