Use when building game systems, implementing Unity/Unreal features, or optimizing game performance. Invoke for Unity, Unreal, game patterns, ECS, physics, networking, performance optimization.

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Use when building CLI tools, implementing argument parsing, or adding interactive prompts. Invoke for CLI design, argument parsing, interactive prompts, progress indicators, shell completions.

Ralph Wiggum loops - self-referential TDD iteration until tests pass

Build AI agents with Pydantic AI (Python) and Claude SDK (Node.js)

Use when building MCP servers or clients that connect AI systems with external tools and data sources. Invoke for MCP protocol compliance, TypeScript/Python SDKs, resource providers, tool functions.

Progressive Web Apps - service workers, caching strategies, offline, Workbox

Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Invoke for Entity Framework Core, minimal APIs, async patterns, CQRS with MediatR.

Use when building Next.js 14+ applications with App Router, server components, or server actions. Invoke for full-stack features, performance optimization, SEO implementation, production deployment.

Create and manage Claude Code skills following Anthropic best practices. Use when creating new skills, modifying skill-rules.json, understanding trigger patterns, working with hooks, debugging...

Analyzes software bugs including root cause identification, severity assessment, impact analysis, reproduction steps validation, and fix recommendations. Performs bug triage, categorization,...

Expert guidance for Microsoft Dynamics 365 Business Central development using AL language and extensions

Expert guidelines for Chrome extension development with Manifest V3, covering security, performance, and best practices

Mandatory skills, conventions, and behavioral rules for Avalonia UI development using the Zafiro toolkit.

Mandatory skills, conventions, and behavioral rules for Avalonia UI development using the Zafiro toolkit.

Mandatory skills, conventions, and behavioral rules for Avalonia UI development using the Zafiro toolkit.

Mandatory skills, conventions, and behavioral rules for Avalonia UI development using the Zafiro toolkit.

Mandatory skills, conventions, and behavioral rules for Avalonia UI development using the Zafiro toolkit.

Java Quarkus development guidelines for building cloud-native applications with fast startup, minimal memory footprint, and GraalVM native builds

Expert in cross-platform mobile development (React Native/Flutter), bridging native performance with shared business logic.