From ucp-agentic-commerce
Implements UCP Identity Linking with OAuth 2.0 authorization code flow to connect buyer accounts across platforms and merchants for personalized checkouts.
How this skill is triggered — by the user, by Claude, or both
Slash command
/ucp-agentic-commerce:ucp-identity-linkingThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
**Fetch live spec**: Web-search `site:ucp.dev specification identity-linking` and fetch the page for exact OAuth requirements, scopes, and metadata format.
Fetch live spec: Web-search site:ucp.dev specification identity-linking and fetch the page for exact OAuth requirements, scopes, and metadata format.
Also fetch https://developers.google.com/merchant/ucp/guides/identity-linking for Google's integration guide.
Identity Linking lets a Platform (AI agent) authenticate a buyer with a Business (merchant) so the agent can:
UCP mandates RFC 6749 Section 4.1 (Authorization Code) as the primary mechanism:
/.well-known/oauth-authorization-server| Scope | Grants |
|---|---|
ucp:scopes:checkout_session | All checkout operations (create, get, update, complete, cancel) |
A scope covering a capability grants access to ALL operations of that capability.
Identity Linking is declared as a capability in the Business's discovery profile. It includes:
Business:
/.well-known/oauth-authorization-serverPlatform:
Fetch the exact current requirements from the live spec — OAuth details (PKCE requirements, token formats, etc.) may evolve.
npx claudepluginhub orcaqubits/agentic-commerce-skills-plugins --plugin ucp-agentic-commerceImplements UCP patterns: capability negotiation with caching, idempotency keys via Redis/DB, error resolution loops for checkouts, multi-binding REST/MCP/A2A servers. For UCP internal architecture.
Implements ACP REST checkout API: create, update, retrieve, complete, cancel sessions with state machine, data models, and headers. For merchant endpoints and AI agent flows.
Documents OCAPI Shop and Data API endpoints, authentication, pagination, and SCAPI migration guide for maintaining legacy Salesforce B2C Commerce integrations.