E-commerce

Implement comprehensive validation using Zod schemas for type-safe validation on both client and server, with server-side validation as the security boundary (never trust client input). Use this skill when validating user inputs, creating API endpoints that accept data, implementing forms, defining data schemas, validating file uploads, creating validation middleware, implementing Firestore security rules or Supabase RLS, or writing validation rules for any user-provided data. Apply when working on API route handlers, form components with React Hook Form, validation middleware, Zod schema definitions (schemas/*.ts, validation/*.ts), Firestore security rules (firestore.rules), Supabase RLS policies, or any code that accepts external input. This skill ensures server-side validation always (client-side is for UX only), Zod for schema validation with TypeScript type inference (z.infer<typeof schema>), validation middleware factory for Express/Bun APIs, React Hook Form + zodResolver for forms, user-friendly error

UI/UX design intelligence. 50 styles, 21 palettes, 50 font pairings, 20 charts, 8 stacks (React, Next.js, Vue, Svelte, SwiftUI, React Native, Flutter, Tailwind). Actions: plan, build, create, design, implement, review, fix, improve, optimize, enhance, refactor, check UI/UX code. Projects: website, landing page, dashboard, admin panel, e-commerce, SaaS, portfolio, blog, mobile app, .html, .tsx, .vue, .svelte. Elements: button, modal, navbar, sidebar, card, table, form, chart. Styles: glassmorphism, claymorphism, minimalism, brutalism, neumorphism, bento grid, dark mode, responsive, skeuomorphism, flat design. Topics: color palette, accessibility, animation, layout, typography, font pairing, spacing, hover, shadow, gradient.

ECサイト開発 - 商品管理、カート、決済、注文フロー、在庫管理の設計・実装支援

Create educational course content, lesson plans, and workshop materials. Use for building structured learning experiences about AI-assisted development and vibe coding.

Persistently stores conversation state, decisions, and progress to allow seamless resume across sessions.

expo-secure-store patterns for sensitive data. Use when storing tokens and credentials.

Expert-level SolidJS and SolidStart development skill with 20+ years senior/lead engineer mindset. Comprehensive guidance for building production-ready, scalable web applications with fine-grained reactivity. Use when Claude needs to: (1) Create new SolidJS/SolidStart projects, (2) Implement TanStack Query/Router/Table/Form integration, (3) Build reactive components with signals/stores/resources, (4) Handle SSR/SSG/streaming with SolidStart, (5) Implement authentication and API routes, (6) Optimize bundle size and performance, (7) Debug reactivity issues and memory leaks, (8) Structure large-scale applications, (9) Implement type-safe patterns with TypeScript, (10) Handle error boundaries and suspense, (11) Build accessible UI components, (12) Deploy to Vercel/Netlify/Cloudflare. Triggers: "solid", "solidjs", "solidstart", "createSignal", "createStore", "createResource", "tanstack solid", "vinxi", "fine-grained reactivity".

Expert on EAS Update for over-the-air updates in Expo apps. Covers update deployment, rollouts, rollbacks, channels, branches, and runtime versions. Invoke when user mentions EAS Update, OTA updates, hot updates, update channels, or app updates without app store.

Encrypt and decrypt BSV backup files (.bep format) using the bitcoin-backup CLI. Supports all backup types (BAP identity, wallet, ordinals, vault). Uses Flow's FLOW_BACKUP_PASSPHRASE and stores files in /.flow/.bsv/ following Flow's BSV convention.

Use when creating ENT components/pages/stores or agent violates Vue 2 patterns - enforces ENT-specific rules and prevents common rationalizations about Vue 3, custom CSS, v-slot syntax, and fetch API

Build and deploy this Next.js LangChain retrieval application with Supabase vector store. Use when building, deploying, setting up vector store, or preparing the project for production.

Context preservation with semantic memory: six-tier importance system (constitutional/critical/important/normal/temporary/deprecated), hybrid search (FTS5 + vector), 90-day half-life decay for recency boosting, checkpoint save/restore for context safety, constitutional memories (always surfaced), confidence-based promotion (90% threshold), session validation logging, context type filtering (research/implementation/decision/discovery/general), auto-indexing (memory_save/memory_index_scan). Manual trigger via keywords or /memory:save command.

Comprehensive mobile DevOps workflow that orchestrates mobile application development, CI/CD for mobile, app store deployment, and mobile device testing. Handles everything from mobile app build automation and testing to app store submission, monitoring, and mobile-specific DevOps practices.

Best practices for creating Shopify 2.0 sections with inline CSS and JavaScript

Use when modifying MCP servers that touch repo memory (especially docs-memory). Includes protocol guardrails, validation ladder, and how to store new capabilities as Skills so future agents don’t re-learn painful details. Triggers: docs-memory, mcp-server.js, tools/list, tools/call, stdio, headerless, JSON-RPC, protocol.

Unified memory substrate. Store facts, patterns, and context. Query with remember, consult, and stats commands.

Best practices for creating comprehensive section schemas with all setting types

Svelte reactive programming, stores, transitions, and building efficient SPAs.

Expert knowledge for deploying and operating Composable Rust applications in production. Use when setting up database migrations, configuring connection pools, implementing backup/restore procedures, tuning performance, setting up monitoring and observability, or handling operational concerns like disaster recovery and production database management.

[Extends frontend-developer] Vue 3 specialist. Use for Vue-specific features: Composition API, script setup, Pinia stores, Vue Router, Nuxt 3 SSR, Vitest. Invoke alongside frontend-developer for Vue projects.