Database schema design patterns for SQL and NoSQL databases

Schema awareness - read before coding, type generation, prevent column errors

Follow Recovery Coach codebase patterns and conventions. Use when writing new code, components, API routes, or database queries. Activates for general development, code organization, styling, and...

Use when user wants to create a new Next.js 15 project (Todo/Blog/Dashboard/E-commerce/Custom domain) with App Router, ShadCN, Zustand, Tanstack Query, and modern Next.js stack

Guides and best practices for working with Neon Serverless Postgres. Covers getting started, local development with Neon, choosing a connection method, Neon features, authentication...

AAA-caliber engineering council for building production-quality games. Use when implementing game systems, writing game code, designing data architecture, building UI components, creating...

Install and configure the Flowglad SDK for Next.js, Express, and React applications. Use this skill when adding billing to an app, setting up Flowglad for the first time, or configuring SDK...

Build resumable multi-agent workflows with durable execution, tool loops, and automatic stream recovery on client reconnection.

Complete authentication system with Better Auth, email verification, password reset, protected routes, and account management.

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Upgrade dependencies safely using pnpm catalog, checking for breaking changes, and testing upgrades. Use when updating packages, applying security patches, upgrading major versions, resolving...

Create backend with ElysiaJS, a type-safe, high-performance framework.

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Configure DigitalOcean Managed Postgres with bindable variables or schema isolation. Use when setting up databases, creating users, managing permissions, configuring multi-tenant schemas, or...

Skill for integrating Better Auth - the comprehensive TypeScript authentication framework.

Skill for integrating Better Auth - the comprehensive TypeScript authentication framework.

Comprehensive code review workflow with specialized roles. Use when "レビューして", "review", "セキュリティチェック", "security audit", "テストレビュー", "test quality", "Next.js review", or when checking code quality,...

Backend architecture patterns, API design, database optimization, and server-side best practices for Hono, Cloudflare Workers, and Next.js Route Handlers.

Complete subscription billing system with Stripe integration, feature flags for plan gating, webhook handling, and billing portal.

Complete testing setup with Neon database branching, Playwright browser tests, integration tests, and unit tests. Isolated branches with automatic TTL cleanup.