investigate

Comprehensive guide for PostgreSQL psql - the interactive terminal client for PostgreSQL. Use when connecting to PostgreSQL databases, executing queries, managing databases/tables, configuring connection options, formatting output, writing scripts, managing transactions, and

Write and maintain Architecture Decision Records (ADRs) following best practices for technical decision documentation. Use when documenting significant technical decisions, reviewing past architectural choices, or establishing decision processes.

Implement Stripe payment processing for robust, PCI-compliant payment flows including checkout, subscriptions, and webhooks. Use when integrating Stripe payments, building subscription systems, or implementing secure checkout flows.

OpenSpec 中文版规范助手 - 规范驱动的 AI 编程开发，帮助初始化、创建提案、编写规格、校验格式并归档变更。触发条件： 当用户提及 openspec、规范文档、需求管理、变更提案、spec-driven development 等关键词时主动调用。

Downloads videos from YouTube and other platforms for offline viewing, editing, or archival. Handles various formats and quality options.

.NET/C# backend developer for ASP.NET Core APIs with Entity Framework Core. Builds REST APIs, minimal APIs, gRPC services, authentication with Identity/JWT, authorization, database operations, background services, SignalR real-time features. Activates for: .NET, C#, ASP.NET