{
  "id": "E06",
  "url": "https://cartforagents.com/guides/accessibility-product-data",
  "title": "Accessibility product data: publish the dimensions, grip and load limits shoppers ask about",
  "description": "For stores selling shower chairs, rollators, reachers, jar openers and other daily-living aids: which measurements, limits and conditions to publish so shoppers and AI assistants can check fit, and which health claims to leave out.",
  "answer": "Publish the numbers a shopper checks against their own body and home: weight capacity, user-height range, adjustment range, footprint and fitting conditions, reach, and the sizes of what it grips. Give each one a single value with its unit, say what it covers and who set it, and say plainly who the product isn't for. Leave out safety and health promises unless you have a document that backs them.",
  "take": "Shower chairs already publish weight capacity well; what's missing across this category is grip and effort, which listings describe in adjectives. A clear \"not for users over 6'1\"\" is worth more than \"effortless\", because the right shopper can act on it.",
  "summary": "People buy a shower chair or a rollator on a fact about their own body: how much they weigh, how tall they are, how strong their grip is. Publish those numbers, the conditions they hold under and who the product isn't for, and leave out promises you can't document. We read four real Shopify catalog searches to show what's working and what's missing.",
  "claims": [
    {
      "text": "For the search \"shower chair with back 300 lb weight capacity\", all 10 descriptions stated a weight capacity. The listing in 9th place, a transfer bench, said \"Supports up to 250 lbs\". Two of the ten (a shower stool and a U-shaped seat) never mentioned a back.",
      "source_title": "Cart for Agents: Accessibility product data, How we checked",
      "source_url": "https://cartforagents.com/guides/accessibility-product-data#how-we-checked",
      "source_date": "2026-11-04",
      "method": "observed",
      "limitation": "One unpersonalized Shopify Catalog search, top 10. Counts what was written, not whether any chair holds that weight."
    },
    {
      "text": "In the same search, three listings from one seller called themselves \"Bariatric-Grade\" and \"Lab-Tested\" (or \"Lab-tested\"): two at 450 lbs and one at 300 lbs. None named the lab or the test.",
      "source_title": "Cart for Agents: Accessibility product data, How we checked",
      "source_url": "https://cartforagents.com/guides/accessibility-product-data#how-we-checked",
      "source_date": "2026-11-04",
      "method": "observed",
      "limitation": "Quotes listing copy. We don't know whether a test exists."
    },
    {
      "text": "For the search \"rollator walker for tall person with seat\", 5 of the 10 descriptions gave a user-height range; the top ends ran from 6'1\" to 6'4\". The listing in 4th place said \"Approximate user height: 4'10\"-6'1\"\" and, in the same description, that it suits \"someone under 5 feet tall to someone over 6 feet tall\".",
      "source_title": "Cart for Agents: Accessibility product data, How we checked",
      "source_url": "https://cartforagents.com/guides/accessibility-product-data#how-we-checked",
      "source_date": "2026-11-04",
      "method": "observed",
      "limitation": "One search. Height ranges are the sellers' guidance, not fit tests."
    },
    {
      "text": "The same rollator description said \"Weighs: 14 lbs.\" and \"Weight capacity: 300 lbs.\", and its specification table also listed \"Weight Capacity Range 201 - 300 lbs\" and \"Item Weight 11-20 lbs\". Shopify's generated spec list gave \"Weight Capacity: 201–300 lbs\" and \"Product Weight: 11–20 lbs\".",
      "source_title": "Cart for Agents: Accessibility product data, How we checked",
      "source_url": "https://cartforagents.com/guides/accessibility-product-data#how-we-checked",
      "source_date": "2026-11-04",
      "method": "observed",
      "limitation": "We can't see how Shopify chose which value to keep."
    },
    {
      "text": "For the search \"reacher grabber tool 32 inch lightweight\", none of the 10 listings gave a number for how hard the trigger is to squeeze. Four described it in words, such as \"needs minimal squeeze force\" and \"Minimal grip strength required\". Three descriptions stated a 5-pound lift limit.",
      "source_title": "Cart for Agents: Accessibility product data, How we checked",
      "source_url": "https://cartforagents.com/guides/accessibility-product-data#how-we-checked",
      "source_date": "2026-11-04",
      "method": "observed",
      "limitation": "One search. We didn't test any reacher."
    },
    {
      "text": "For the search \"jar opener for arthritis weak grip\", 4 of the 10 descriptions gave the range of lid sizes the opener fits (for example \"0.98” to 3.74” / 2.5 to 9.5 cm diameter\"). None gave a number for the force or grip needed.",
      "source_title": "Cart for Agents: Accessibility product data, How we checked",
      "source_url": "https://cartforagents.com/guides/accessibility-product-data#how-we-checked",
      "source_date": "2026-11-04",
      "method": "observed",
      "limitation": "One search. Counts the description field only."
    },
    {
      "text": "Shopify marks some Global Catalog fields as Inferred, generated or enriched by Shopify, including the description, options, technical specifications, top features and unique selling points. It says they may not always be present, may vary in accuracy, and should be treated as discovery signals rather than merchant-authored source text.",
      "source_title": "Shopify: Global Catalog MCP, Inferred response fields",
      "source_url": "https://shopify.dev/docs/agents/catalog/global-catalog",
      "source_date": "2026-11-04",
      "method": "documented",
      "limitation": "Living developer documentation. It doesn't say which values were generated for a given product."
    },
    {
      "text": "In a supplied-snippet simulation, an invented humidifier with vague copy was picked in 3 of 180 Claude sessions, 0 of 60 on GPT-6.1-Sol, 6 of 60 on Gemini 3.8 Flash and 3 of 54 on Gemini 3.1 Pro; with its facts as a spec line it was picked in 134 of 180, 20 of 60, 19 of 59 and 15 of 55. Each model picked 2 of 8 listings, so random picking is 25%.",
      "source_title": "Cart for Agents: Vague vs specific product facts, simulated picks by Claude, GPT and Gemini models",
      "source_url": "https://cartforagents.com/research/vague-specific-product-facts-simulation",
      "source_date": "2026-10-27",
      "method": "controlled-simulation",
      "limitation": "A different category, an invented product and snippets we supplied. Not live ChatGPT or Gemini results."
    }
  ],
  "sources": [
    {
      "title": "Shopify: Global Catalog MCP",
      "url": "https://shopify.dev/docs/agents/catalog/global-catalog",
      "accessed": "2026-11-04"
    },
    {
      "title": "Cart for Agents: Vague vs specific product facts simulation",
      "url": "https://cartforagents.com/research/vague-specific-product-facts-simulation",
      "accessed": "2026-11-04"
    }
  ],
  "limitations": [
    "This is product-data advice, not medical, safety or regulatory advice. Whether a product suits a person is for them and their clinician or therapist to decide.",
    "The examples come from four Shopify Catalog searches on November 4, 2026, top 10 results, with no shopper location set. A search today could look different, and other assistants get product data in other ways.",
    "We wrote the searches to sound like shoppers. Store and brand names are withheld.",
    "We quote what listings said. We didn't test any product, or check any capacity or height range.",
    "We haven't measured whether publishing these facts changes what any assistant recommends, or your sales."
  ],
  "related": [
    "https://cartforagents.com/guides/spec-sold-product-guides",
    "https://cartforagents.com/guides/product-specification-template",
    "https://cartforagents.com/guides/baby-product-data",
    "https://cartforagents.com/guides/negative-product-attributes",
    "https://cartforagents.com/guides/product-claim-provenance",
    "https://cartforagents.com/guides/size-chart-accessibility",
    "https://cartforagents.com/research/vague-specific-product-facts-simulation"
  ],
  "published": "2026-11-04",
  "updated": "2026-11-04",
  "checked": "2026-11-04",
  "kind": "guide"
}