UCP Expert Plugin: 15 Skills Covering Checkout, Bindings, Extensions & Dev Patterns

[niOrca]

We built an open-source agent plugin/skills that gives your AI coding assistant deep UCP expertise: checkout flows, capability negotiation, all four bindings, the extension model, and the full Trust Triangle payment architecture.

Cross-platform skills for Claude, Gemini, Codex, Cursor, and OpenClaw.

How it works: Conceptual knowledge is baked in, but implementation details are always fetched live from the UCP spec and SDK, so guidance stays current as the protocol evolves. A PCI/secret detection hook catches accidental credential leaks.

15 skills cover the full protocol surface: setup & scaffolding, Checkout over REST/MCP/A2A/Embedded bindings, Fulfillment (shipping & pickup), Discounts, Buyer Consent (GDPR/CCPA), Identity Linking (OAuth 2.0), Orders & Webhooks, Payment Handlers (Google Pay, Shop Pay), AP2 Mandates extension, Schema Authoring for custom extensions, Conformance testing, and cross-cutting dev patterns (capability negotiation, idempotency, error handling).

All open source, MIT licensed. Install docs and usage in the repo.

GitHub: https://github.com/OrcaQubits/agentic-commerce-skills-plugins/tree/main/ucp-agentic-commerce

Feedback and contributions welcome!