StoreSteady measured 273 product-truth-evaluable Shopify storefronts. 12 had a breakage-confirmed public product-truth mismatch. Wilson 95% confidence interval: 2.53% to 7.52%.
AI shopping agents may inspect schema, PDPs, product feeds, and policy pages in parallel. When those surfaces disagree, the store has conflicting public product evidence at the moment of comparison. StoreSteady did not measure revenue impact, ranking impact, retrievability prediction, or actual agent recommendation behavior.
Rate: 42%. Wilson 95% CI: 37.8% to 46.4%.
Before product-truth can be evaluated, 210 of 500 storefronts produced access friction before product, policy, or checkout truth could be evaluated.
Read the reportRate: 31.6%. Wilson 95% CI: 15.4% to 54.0%.
On a smaller deterministic tranche of 19 schema-evaluable storefronts, 6 showed conflict. Confidence interval is wide - directional only.
Read the reportRate: 0%. Wilson 95% CI: 0% to 7.14%.
StoreSteady observed 0 verified core agentic-commerce protocol surfaces in a 50-store rank-stratified tranche.
Read the report| Report | Frozen corpus | Freeze timestamp |
|---|---|---|
| Product Truth Drift | For this report, StoreSteady evaluated a frozen corpus of 500 Shopify storefronts. | 2026-05-21T22:00:01.570Z |
| Access Friction | For this report, StoreSteady evaluated a frozen corpus of 500 Shopify storefronts. | 2026-05-21T22:00:01.570Z |
| Schema/Page Consistency | For this report, StoreSteady evaluated a frozen corpus of 100 Shopify storefronts. | 2026-05-21T22:00:01.570Z |
| Protocol Adoption | For this report, StoreSteady evaluated a frozen corpus of 50 Shopify storefronts. | 2026-05-21T22:00:01.570Z |
| Checkout Readiness Exceptions | For this smoke report, StoreSteady evaluated a frozen checkout-readiness page-smoke bundle and referenced the existing Summer 2026 Breakage checkout aggregate as tentative context. | 2026-05-29T18:20:00.000Z |
Deterministic store and PDP selection where applicable.
Wilson 95% confidence intervals on every published rate.
No merchant names, raw domains, raw PDP URLs, product titles, raw model answers, or source excerpts in public artifacts.
Breakage calibration accuracy 98.99% on N=199 labeled rows; judge alpha 0.9233.
A shopping-agent answer asserted a concrete product price for an available product. The store's public product evidence for the same product exposed a different numeric price outside the configured currency-unit tolerance. The candidate reproduced in at least two of three runs and was confirmed by the calibration decision path.
12 of 273 product-truth-evaluable stores had a confirmed public product-truth mismatch.
Read210 of 500 scanned Shopify storefronts produced access friction before product, policy, or checkout truth could be evaluated.
Read6 of 19 schema-page-evaluable storefronts had a deterministic public-surface conflict.
Read0 of 50 rank-stratified Shopify storefronts exposed a verified core agentic-commerce protocol surface.
ReadStoreSteady classified 3 checkout-readiness smoke pages before any checkout-readiness expansion run.
Read30 of 30 apparel-evaluable stores had at least one applicable tracked attribute missing public evidence across two deterministic PDPs.
Read32 of 40 crawled Kitchen/Coffee candidate stores exposed enough public PDP evidence for attribute-readiness evaluation.
ReadIn a 50-store Pet candidate sample, 35 stores met StoreSteady's public evidence threshold. The remaining 15 were blocked, incomplete, or too thin to evaluate.
ReadThe briefing is aggregate evidence. The useful next step is checking the public product-truth surfaces for your own store.
Check whether your store has product-truth drift