GigaCommerce

Platform & products

Agentic commerce

Definition

Commerce transactions initiated, researched, or completed with an AI agent acting on the shopper's behalf, rather than a human clicking through a storefront unassisted.

Defined in The Agentic Commerce Glossary.

How else it gets framed

The same term carries different emphasis depending on the surface it’s used on. Both readings are correct.

Commerce where an AI agent — on-site (a Brand Agent, on-site AI search) or off-site (ChatGPT, Perplexity, Rufus) — reasons over a store's product data on the shopper's behalf, and in some flows completes the purchase itself. The store's job shifts from persuading a human eye to answering a machine's questions correctly.

The Agency Pitch Deck for Agentic Commerce, Annotated

A purchase journey in which an autonomous AI agent performs the discovery, evaluation, and transaction steps on a shopper's behalf — querying catalogs, comparing options against stated constraints, and completing checkout inside a conversation rather than on a web page.

Agentic Commerce on Shopify: The 2026 Guide

Related terms

Conversation flow
A named pattern of shopper intent — e.g. 'compare two products on a specific attribute' — paired with the reasoning logic and catalog data the Brand Agent needs to answer any phrasing of that intent well, not a single scripted exchange.
Launch drift
The gradual mismatch between an agent's configuration and reality that sets in when nobody actively tunes it after go-live — catalog changes go unreflected, new question patterns go unanswered, and the agent that was accurate on day one becomes gradually less accurate with each week of neglect.
Confidence threshold
The internal setting that decides whether a Brand Agent answers directly or escalates to a human. Set too low, it guesses too often; set too high, it escalates so much the feature stops saving anyone time.
Prose-trapped fact
A true, useful product fact that exists only inside a marketing description rather than as a structured field — readable by a shopper, invisible to an agent's filtering logic.
Brand Agent
Shopify's merchant-controlled AI shopping assistant, shipped in the Spring '26 edition on June 17, 2026, currently available to Shopify Plus merchants only.
Rufus
Amazon's built-in AI shopping assistant, which answers product questions directly inside the Amazon app and site using Amazon's own catalog and review data.

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