UCP Checker

post_brief

Today's creative brief: the four products the daily Reel was cut from, the saving, the caption that shipped, the list url, and the house rules any new copy must keep. Optional `date` (YYYY-MM-DD) for an earlier day. Null when nothing was prepared.

Schema

Input Schema

{
    "type": "object",
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "properties": {
        "date": {
            "type": "string",
            "pattern": "^\\d{4}-\\d{2}-\\d{2}$"
        }
    },
    "additionalProperties": false
}
Verified Stores
1
Member Stores

Stores exposing the post_brief tool

Weekly UCP Report

Get the agentic commerce digest every Monday

Real adoption data, ecosystem trends, new spec versions, and the stores that broke or recovered this week. Read by founders and engineers building the next generation of commerce.

Free forever No spam Unsubscribe anytime

View a sample report →

Weekly UCP Report
Issue #50 · Sep 14, 2026
+664
new verified stores
Verified rate
Latest spec
Cart capability