ARC INDEX · APPAREL
Mack Weldon
WHAT GROK TOLD A SHOPPER
One AI model's read-back recommended this.
Checked 5 Oct 2026. One AI model's read-back (currently Grok via API, not the consumer Grok app). One model, not a consensus.
Tested product: SILVER V-Neck T-Shirt. Product page · Store
Score
35
of 100 · 0 of 5 shoppers added to cart
Browser shoppers
0 of 5
Browser cart shoppers that added the product to the cart. The score is this lane. The catalog check does not change it.
Tested 6 Oct 2026. How ARC tests
CAN AGENTS BUY
Agents can reach checkout through Shopify's agent catalog. Browser cart shoppers get stuck at adding the product to the cart.
AGENT CATALOG · REAL
Checkout link. The catalog returned the tested product.
ARC BROWSER CART TESTS
0 of 5 added the product to the cart. Stuck at adding the product to the cart.
View or refresh the free agent checkout check for mackweldon.com →
GROK · REAL MODEL
One AI model's read-back recommended this.
Checked 5 Oct 2026. One AI model's read-back (currently Grok via API, not the consumer Grok app). One model, not a consensus.
Model x-ai/grok-4.20
The Mack Weldon SILVER V-Neck T-Shirt is a strong premium pick thanks to its antimicrobial Supima cotton with stretch, excellent odor resistance, and high customer ratings for softness and durability. At $58 it's more expensive than basic cotton tees but offers better performance for everyday wear; I'd recommend it if you value quality and longevity over low cost.
Rivals one model named: Uniqlo Supima Cotton V-Neck, Everlane Organic Cotton V-Neck, Tommy John Second Skin V-Neck
MOST COSTLY MISMATCH
Grok told a shopper your price is $58. Your site says $28.99.
| Fact | Check | The model said | Store page |
|---|---|---|---|
| Price | Mismatch | $58 | $28.99schema.org JSON-LD"price": 28.99Source page |
| Returns window | Couldn't verify | 30 | — |
| Shipping cost | Couldn't verify | free | — |
| Availability | Couldn't verify | in stock | — |
| Delivery estimate | Grok didn't know | — | — |
Sources Grok cited
- Mack Weldon SILVER V-Neck T-Shirt product page
- Mack Weldon Silver Collection
- Mack Weldon Everything | Men’s Clothing, Basics & Essentials
- T-Shirts & Henleys for Men | Mack Weldon
- Most Comfortable SILVER Crew Neck T-Shirt in White | Mack Weldon, Size: Large
- Mack Weldon SILVER V-Neck T-Shirt | Luxury Antimicrobial Tee
Each shopper
- ARC browser shopper AStopped
- ARC browser shopper BStopped
- ARC browser shopper CStopped
- ARC browser shopper DStopped
- ARC browser shopper EStopped
The failure
Couldn't add it to the cart
“ADD TO BAG” was clicked twice and the cart did not change. HTTP 200. Screenshot: /api/shot?p=runs%2FxgflqOdkEObvwdRnSUIkN%2Fmuse-step1-9OKpyGoZkaweFAiezof4enii02AOEc.png. This stopped 4 of 5 agents.
Top fix
Use a real Add to cart button, and show that the item landed in the cart.
History
- 6 Oct 202635/100 · browser 0 of 5 · Couldn't add it to the cart
Is this your store?
The free scan puts the score on screen and emails the full report.
Share this result
Every ARC page and dataset is free to read, cite and reuse.
OpenClaw only follows labelled controls. A block at the door is one result for all five, with the HTTP evidence. The score is the ARC browser cart, the same number as a free scan. The agent-catalog check above is real and leads the buy verdict. It does not change the score. How it works.
BADGE FOR YOUR SITE
Put this on your site. It links back here. It says Agent checkout when the real catalog check returned a checkout link, and Agents chose us only when a browser cart shopper added the product to the cart.
<a href="https://www.arcreport.ai/agent-index/mack-weldon"><img src="https://www.arcreport.ai/agent-index/mack-weldon/badge" width="360" height="72" alt="Mack Weldon on the ARC Index. Agent checkout. ARC score 35. Agents can reach checkout through Shopify's agent catalog. Browser cart shoppers get stuck at adding the product to the cart."></a>
Want a re-test, or this page removed? Contact ARC or email hello@arcreport.ai.