Developer Test Reveals Gaps in AI Shopping Agents Before Price Comparisons

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A developer at WebAZ ran a read-only test on September 7, 2026, querying tissue products available in Singapore to evaluate how a shopping agent handles price comparisons. The test returned three listings, including an under-cabinet organizer, highlighting that text-based relevance alone can surface non-substitute items alongside genuine product matches. Results also showed that a listing's starting price does not confirm which product variant it applies to, making per-unit cost calculations unreliable without selecting a specific option first. Additionally, the search response provided no final shipping or tax totals, meaning the cheapest listed price cannot be treated as the cheapest delivered price. The developer outlined a manual checklist of verification steps an AI agent should complete before ranking products by cost, and is offering a limited free product-clarity review for merchants and developers.

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