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@andsam/shopify-grab

v0.2.0

Published

Select context for coding agents directly from your Shopify theme

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

sammyjoycesammyjoyce

Keywords

agentcontextgrabshopifyliquidtheme

Readme

Shopify Grab

Select context for coding agents directly from your Shopify theme.

Based on react-grab by Aiden Bai (MIT licensed), adapted for Shopify Liquid themes instead of React apps.

How it works

Point at any element on your Shopify store and press Cmd+C (Mac) or Ctrl+C (Windows/Linux) to copy the element's HTML, section type, block type, and file path context to your clipboard, ready to paste into your coding agent (Cursor, Claude Code, Copilot, etc.).

Example output:

<div class="product-card" data-section-id="template--123__featured-collection">
  Product Title
  $29.99
</div>
  in section "featured-collection" (sections/featured-collection.liquid)
  in block "product" [block-abc123]

Install

Script tag (recommended for Shopify themes)

Add this to your theme.liquid layout file inside <head>:

{% if request.design_mode or settings.enable_dev_tools %}
  <script src="https://unpkg.com/@andsam/shopify-grab/dist/index.global.js" crossorigin="anonymous"></script>
{% endif %}

Snippet approach

Create a snippet snippets/shopify-grab.liquid:

{% if request.design_mode %}
  <script src="https://unpkg.com/@andsam/shopify-grab/dist/index.global.js" crossorigin="anonymous"></script>
{% endif %}

Then render it in your layout: {% render 'shopify-grab' %}

Theme App Extension

If you're building a Shopify app, include the script in your theme app extension's block:

<script src="https://unpkg.com/@andsam/shopify-grab/dist/index.global.js" crossorigin="anonymous"></script>

Usage

Once installed, hover over any UI element and press:

  • Cmd+C on Mac
  • Ctrl+C on Windows/Linux

This copies the element's context to your clipboard, including:

  • HTML preview of the element with key attributes
  • Section type and file path (e.g., sections/header.liquid)
  • Block type if inside a section block
  • Snippet name if using data-snippet attributes

What gets detected

Shopify Grab detects theme structure from:

  • data-shopify-editor-section attributes (JSON with section type, settings, blocks)
  • data-shopify-editor-block attributes (JSON with block type)
  • data-section-id and data-section-type attributes
  • .shopify-section class and #shopify-section-* IDs
  • .shopify-block class and #shopify-block-* IDs
  • data-snippet custom attributes (for snippet identification)

These attributes are automatically present in the Shopify Theme Editor and on storefront preview pages.

Liquid Profiler (Advanced)

Shopify Grab includes a built-in Liquid profiler that taps into the same profiling API used by Shopify's Theme Inspector Chrome extension. When enabled, it provides file paths, line numbers, and render times for every Liquid template, giving you bippy-level source introspection for Shopify themes.

How it works

  1. Authenticates with Shopify Identity (same OAuth flow as Theme Inspector)
  2. Fetches Speedscope-format profiling data from Shopify's servers
  3. Parses the profiling frames to build a source map
  4. Maps DOM elements to their Liquid source files via section/block correlation

Quick start

const sg = window.__SHOPIFY_GRAB__;

// Sign in with your Shopify partner/staff account (opens popup)
await sg.profilerSignIn();

// Fetch profiling data for the current page
await sg.profilerProfile();

// Now hover + Cmd/Ctrl+C includes file:line info!
// Example output with profiler enabled:
//
// <div class="product-card">
//   Premium Widget
//   $29.99
// </div>
//   in featured-collection (at sections/featured-collection.liquid:42) (15.2ms)
//   in product-card (at snippets/product-card.liquid:3) (4.1ms)
//   render: 19.3ms

Profiler API

const sg = window.__SHOPIFY_GRAB__;

// Authentication
await sg.profilerSignIn();      // Sign in (opens OAuth popup)
sg.profilerSignOut();            // Sign out and clear tokens
sg.profilerIsAuthenticated();    // Check if signed in

// Profiling
const profile = await sg.profilerProfile();  // Fetch profile for current page
sg.profilerHasProfile();                     // Check if profile data loaded
sg.profilerClearCache();                     // Clear cached profiles

// Element source resolution
sg.getSourceForElement(element);       // Full source stack (layout -> template -> section -> snippet)
sg.getBestSourceForElement(element);   // Most specific source location
sg.getRenderTimeForElement(element);   // Section render time in ms

// Status monitoring
sg.profilerGetStatus();  // { state: "idle" | "authenticating" | "authenticated" | "fetching" | "ready" | "error" }
sg.profilerOnStatusChange((status) => console.log(status));

Requirements

  • A Shopify partner or staff account with access to the store
  • The store must be accessible (live or via shopify theme dev)
  • Profiling is read-only and does not affect store performance

Without the profiler

Shopify Grab works without authentication, using DOM-based detection (data attributes, section IDs, class patterns). The profiler just adds richer source context.

Features

  • Same overlay UI as react-grab (crosshair, selection highlight, floating label)
  • Liquid profiler for file:line source context (like bippy for React)
  • Shopify green color scheme
  • Canvas-based overlay for smooth 60fps animations
  • Shadow DOM isolation (doesn't conflict with theme styles)
  • Drag to select multiple elements
  • Right-click context menu with Copy, Copy HTML, Copy Screenshot
  • Cursor IDE Lexical editor clipboard format support
  • Plugin system for customization
  • Render time display per section

API

// Access the global API
const api = window.__SHOPIFY_GRAB__;

// Programmatic control
api.activate();
api.deactivate();
api.toggle();
api.isActive();

// Copy an element's context
api.copyElement(document.querySelector('.product-card'));

// Get display name for an element
api.getDisplayName(element); // "featured-collection" or "header/menu"

// Get source info (uses profiler when available)
const source = await api.getSource(element);
// { filePath: "sections/header.liquid", lineNumber: 42, componentName: "header" }

License

MIT. Based on react-grab by Aiden Bai.