E-commerce

Comprehensive guide for implementing Fullstory's Element Properties API across Web, Android, and iOS platforms. Teaches proper type handling, schema construction, value formatting, and platform-specific patterns including view/cell reuse. Includes detailed good/bad examples for e-commerce, forms, and dynamic content to help developers add semantic decoration to their apps and capture business-relevant properties on interactive elements.

Implement data persistence using SQLite with Dapper, JSON files, or event sourcing.Use when: "database", "save data", "store", "CRUD", "create table", "query", "SQL","SQLite", "Dapper", "file storage", "JSON file", "event sourcing", "persistence","read from database", "write to database", "data access", "repository".Creates code in src/Server/Persistence.fs with async I/O patterns.

Stores notifications in localStorage with schema (id, taskId, message, timestamp, read, priority). Provides retrieval methods (getUnread, getAll, markAsRead) and maintains last 50 notifications with automatic cleanup for deleted tasks.

Restore previous session state from Serena MCP checkpoints. Retrieves checkpoint by ID orauto-selects most recent, deserializes context, restores command/skill/phase/wave state.Use when: resuming after context loss, continuing previous session, recovering from interruption.

Store objects with R2's S3-compatible storage on Cloudflare's edge. Use when: uploading/downloading files, configuring CORS, generating presigned URLs, multipart uploads, managing metadata, or troubleshooting R2_ERROR, CORS failures, presigned URL issues, or quota errors.

Zustand store specialist - handles store generation, sync patterns, selectors, and persistence for totalaud.io state management.

Cucumber/Gherkin BDD 最佳實踐指導技能，提供 Gherkin 撰寫規範、情境設計原則、Discovery Workshop 引導與常見反模式識別，協助團隊撰寫高品質的行為驅動開發規格。

Expert UI designer for building responsive, accessible web interfaces with Tailwind CSS v4 and Tailwind Plus components. Use when building websites, landing pages, web applications, UI components, forms, navigation, layouts, e-commerce pages, or marketing pages. Has access to 657 Tailwind Plus component templates including application shells, forms, navigation, data display, overlays, e-commerce checkout flows, product pages, marketing heroes, pricing sections, and more. Specializes in responsive design, accessibility (WCAG), dark mode, modern CSS features, and system fonts.

Full workshop for story discovery, user journey mapping, and backlog creation (project)

1800+ lines of database architecture mastery - SQLite, Hive, ObjectBox, Firestore, encryption, offline-first, sync with production-ready code examples.

Complete theming guide for the e-commerce storefront. Documents all styled components and provides instructions for applying new themes. Use when customizing store appearance, changing color schemes, or restyling the entire application.

Firebase Firestore specialist covering NoSQL patterns, real-time sync, offline caching, and Security Rules. Use when building mobile-first apps with offline support, implementing real-time listeners, or configuring Firestore security.

1800+ lines of DevOps mastery - CI/CD, code signing, app store, monitoring, Fastlane with production-ready code examples.

Optimize and post-process GLB/glTF 3D models. Use when compressing models for web delivery, reducing file size, simplifying geometry, inspecting model stats, merging models, or converting textures. Triggers on: optimize GLB, compress model, reduce file size, simplify mesh, draco compression, meshopt, webp textures, inspect model, merge GLB, model optimization.

Elite B2C sales strategies focused on consumer psychology, behavioral economics, e-commerce conversion optimization, DTC brand tactics, subscription model optimization, and high-ticket consumer sales. Covers digital commerce, retail psychology, consultative selling, objection handling, and revenue optimization for consumer-facing businesses.

Store and transform images with Cloudflare Images API and transformations. Use when: uploading images, implementing direct creator uploads, creating variants, generating signed URLs, optimizing formats (WebP/AVIF), transforming via Workers, or debugging CORS, multipart, or error codes 9401-9413.

Master Svelte's true reactivity, reactive declarations, stores, and animations with minimal boilerplate.

Unified documentation and context preservation: spec folder workflow (levels 1-3), template enforcement, validation, Spec Kit Memory with vector search, six-tier importance system, constitutional rules, checkpoint save/restore. Mandatory for all file modifications.

Create MockDB (in-memory) repository implementation for development and testing. Use when implementing repository interface with mock database, creating in-memory data store, or setting up test fixtures. Triggers on "mockdb repository", "mock repository", "in-memory repository", "test repository implementation".

Manage retail menus and orders via Dutchie Plus API.