OrcaQubits

Implement A2A task lifecycle management — task creation, state transitions, terminal states, history, and artifacts. Use when building task state machines, handling state transitions, or managing task persistence.

Write modern JavaScript and TypeScript — ES6+ features, async/await, modules, destructuring, optional chaining, TypeScript types, and modern tooling. Use when writing JavaScript/TypeScript for Shopify themes, apps, Functions, or Hydrogen storefronts.

Implement Magento 2 plugins (interceptors) — before, after, and around methods for modifying class behavior without inheritance. Use when extending core or third-party module functionality.

Implement WebMCP authentication patterns — browser session inheritance, cookie-based auth, role-gated tool registration, and conditional tool exposure. Use when managing which tools are available based on user authentication state.

Implement Spree's checkout — the Order state machine (cart → address → delivery → payment → confirm → complete), the Payment and Shipment sub-state machines, the return flow (ReturnAuthorization → CustomerReturn → Reimbursement → Refund), guest checkout, payment-step skipping for credit-covered orders, and the V3 checkout API surface. Use when building or customizing checkout flows, debugging stat

Work with BigCommerce orders — order lifecycle, statuses, line items, shipments, refunds, order metafields, and fulfillment. Use when building order management integrations or processing orders programmatically.

Create custom Medusa v2 API routes — file-based routing, HTTP method exports, middleware configuration, Zod validators, authentication middleware, and additional-data pattern. Use when adding REST endpoints.

Write modern JavaScript and TypeScript — ES6+ features, async/await, modules, destructuring, optional chaining, TypeScript types. Covers SFCC server-side JS (CommonJS, limited ES6), PWA Kit (full modern JS/TS), and LWC JavaScript (Lightning Locker constraints). Use when writing JavaScript for Salesforce Commerce.

Upgrade a Spree application — version-to-version migration paths (v4 → v5 is a major rewrite; v5.x → v5.y are simpler), Gemfile pinning strategy, decorator brittleness across versions, deprecated gems to remove (`spree_auth_devise`, `deface`, `spree_backend`), API v2 → v3 migration via `spree_legacy_api_v2`, admin Bootstrap → Tailwind transition, the upgrade guide workflow, and rollback strategy.

Implement A2A SSE streaming — message/stream method, Server-Sent Events, TaskStatusUpdateEvent, TaskArtifactUpdateEvent, and re-subscription. Use when building real-time streaming responses in A2A agents.

Work with Spree's legacy v2 APIs — JSON:API-style Storefront API at `/api/v2/storefront/*` and Platform API at `/api/v2/platform/*`, Doorkeeper OAuth2 (password grant for storefront, client_credentials + admin scope for platform), the `spree_legacy_api_v2` gem (required in v5+ for backward compatibility), and migration patterns to API v3. Use when maintaining a v2 client during a migration window,

Implement UCP Checkout over the REST binding — create, get, update, complete, and cancel checkout sessions with proper headers, idempotency, status transitions, and error handling. Use when building REST-based UCP checkout endpoints or clients.