gaisho

Capability · Seller vetting

Seller vetting for AI shopping agents

Before your agent sends a shopper to an unfamiliar store, gaisho gives a verdict on the seller with its reasons. It works for any online store or marketplace seller, from a domain, a link or a store name.

Shopper asksIs this online store trustworthy for kitchen stuff?

What your agent gets

  • A trust level, best to worst: trusted, reliable, limited, caution or risky; unknown when there isn't enough information.
  • The reasons the verdict rests on, and buyer notes worth knowing whatever the verdict.
  • The evidence: what kind of seller it is, its country, when its website was registered, its ratings and where they come from, how its prices compare with major retailers, return terms and risk findings.
  • An answer in 1 to 20 seconds.

In a recorded run

Recorded output, Nov 5, 2026 · trimmed
{
  "status": "found",
  "seller_name": "[store]",
  "trust_level": "limited",
  "trust_label": "Limited record",
  "summary": "Limited record: fewer than 20 ratings on review sites; an estimated 10,000-99,999 visits a month to its store, but nothing else to vouch for it. Buyer notes: brand authorization not confirmed for some brands it sells, so their warranties may not apply.",
  "facts": {
    "role": "retailer",
    "country": "US",
    "website_registered": "2012-07",
    "rating": { "ratings": "fewer than 20", "source": "review sites" },
    "prices_vs_major_retailers": { "items_compared": 3, "typical_difference_pct": 7 },
    "risk_findings": []
  }
}

The check on a mattress seller in that run. Fields trimmed; the store name is hidden.

What the agent told the shopper

The DreamCloud seller, [store], has a “Limited record” rating: fewer than 20 reviews, and it hasn't been confirmed as an authorized dealer for every brand it sells, so the maker's warranty may not apply.

From the same run's final answer; [store] marks a hidden store name.

How to use it in your agent

  • Relay the summary as it is

    Give the verdict with its reasons, then the buyer notes. The summary is written to be passed on.

  • Read the levels precisely

    A limited record is not a warning. Unknown is neither safe nor unsafe. What wasn't checked is unknown, not safe.

  • Open the store's pages for a deal that looks too good

    Listing condition, currency and return terms decide many cases. For those, let your agent read the store's own pages too.

Limits

  • Risk is read from visible evidence. It is not a finding of counterfeits.
  • Not found means no verdict: neither a good nor a bad sign.

The mattress use case →

Source: gaisho's tool descriptions and daily shopping skill as of Nov 6, 2026; sample from a recorded run on Nov 5, 2026 (the mattress question).