---
type: DecisionTool
title: "ACP/UCP Product-Feed Conformance Auditor"
description: "Validates product/checkout/mandate JSON payloads against ACP or UCP field schemas (5 schema arrays). Identifies missing required fields, type mismatches, and unknown fields. Node 2 of 3 in the Agentic Checkout Chain."
resource: https://ainumbers.co/chaingraph/art-20-acp-ucp-product-feed-conformance-auditor.html
tags: ["scheme_rule", "wave-A", "mcp:audit_acp_ucp_product_feed"]
timestamp: 2026-07-14
generated: { by: "ainumbers/generate-okf", at: "2026-07-14" }
status: stable
sources:
  - resource: https://ainumbers.co/chaingraph/graph/nodes/art-20-acp-ucp-product-feed-conformance-auditor.json
    title: "chaingraph.json shard entry"
  - resource: https://ainumbers.co/chaingraph/art-20-acp-ucp-product-feed-conformance-auditor.html
    title: "public tool page"
---

# ACP/UCP Product-Feed Conformance Auditor

> Exports a decision via MCP `audit_acp_ucp_product_feed` — mandate type `scheme_rule`.

**Context:** ACP + UCP both live 2026

## Inputs

Typed `inputSchema` — see [tool page](https://ainumbers.co/chaingraph/art-20-acp-ucp-product-feed-conformance-auditor.html).

## Outputs

A hash-anchored OpenChainGraph artifact (decision, not context).

## Chains

**Consumes:** [Agentic Checkout Protocol Selector](./art-19-agentic-checkout-protocol-selector.md)

**Feeds:** [Agent-Traffic Acceptance Policy Builder](./art-21-agent-traffic-acceptance-policy-builder.md), [AP2 Prompt Template Generator](./ptg-01-ap2-prompt-template-generator.md)

## Attested computation

[executor + attester binding](../computations/art-20-acp-ucp-product-feed-conformance-auditor.md) — §10.2.