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EP: risk & abuse signals

TC reviewReady for TC reviewReady for TC review

Status: Open.

#153 In Universal-Commerce-Protocol/ucp;

· igrigorik opened on Feb 4, 2026

·  

Working Draft

Catalog: Standardized taxonomy / terms discovery for category filtering

Status: Open.

#151 In Universal-Commerce-Protocol/ucp;

· invocation97 opened on Feb 2, 2026

[Bug]: TypeScript type generator references removed spec/ directory

Status: Open.

#150 In Universal-Commerce-Protocol/ucp;

· sakinaroufid opened on Jan 31, 2026

[Feat]: Preproduction QA Validation of UCP Implementations

Status: Open.

#142 In Universal-Commerce-Protocol/ucp;

· RyanLamanskyInsite opened on Jan 29, 2026

[Feat]: Allow tender-based discounts via payment instrument qualifiers in Checkout Session Update

TC reviewReady for TC reviewReady for TC review

WIP

Status: Open.

#137 In Universal-Commerce-Protocol/ucp;

· ACSchil opened on Jan 28, 2026

·  

Working Draft

[Docs]: Service definition in docs does not match actual schema

Status: Open.

Bug

#136 In Universal-Commerce-Protocol/ucp;

· wry-ry opened on Jan 28, 2026

[Spec] Clarify Request-Signature for Checkout REST binding (define signing/verification; RFC 9421 discussion)

TC reviewReady for TC reviewReady for TC review

Status: Open.

#135 In Universal-Commerce-Protocol/ucp;

· ACSchil opened on Jan 28, 2026

·  

Working Draft

[Spec] missing id in checkout.complete request

Status: Open.

#134 In Universal-Commerce-Protocol/ucp;

· alexpark20 opened on Jan 28, 2026

[Feat]: internal specification structural improvement (openapi refactor)

Status: Open.

Feature

#131 In Universal-Commerce-Protocol/ucp;

· oericdacosta opened on Jan 28, 2026

[Spec] Concurrent checkout updates can cause silent data loss - need ETag/If-Match support

Status: Open.

#113 In Universal-Commerce-Protocol/ucp;

· alidogankaya opened on Jan 23, 2026

[Bug]: Spurious model (fulfillment-option) in the checkout documentation

Status: Open.

Bug

#101 In Universal-Commerce-Protocol/ucp;

· semenovm opened on Jan 22, 2026

are any merchants/retailers live yet?

Status: Open.

#83 In Universal-Commerce-Protocol/ucp;

· jakemarsh opened on Jan 19, 2026