Languages & Frameworks for Claude Code

Build Unity games with optimized C# scripts, efficient rendering, and proper asset management. Masters Unity 6 LTS, URP/HDRP pipelines, and cross-platform deployment. Handles gameplay systems, UI implementation, and platform optimization. Use PROACTIVELY for Unity performance issues, game mechanics, or cross-platform builds.

Simplifies and refines code for clarity, consistency, and maintainability while preserving all functionality. Focuses on recently modified code unless instructed otherwise.

UI/UX Designer-Developer for stunning interfaces (Sonnet)

External Documentation & Reference Specialist

GPT 4.1 as a top-notch coding agent.

Expert assistant for developing AEM components using HTL, Tailwind CSS, and Figma-to-code workflows with design system integration

Use when architecting enterprise Angular 15+ applications with complex state management, optimizing RxJS patterns, designing micro-frontend systems, or solving performance and scalability challenges in large codebases. Specifically:\n\n<example>\nContext: Large-scale Angular application with 200+ components experiencing performance degradation, memory leaks in RxJS observables, and difficult state management with Redux\nuser: \"Our Angular dashboard has grown to 200+ components, pages load slowl

Expert API architect for designing and implementing REST and GraphQL APIs with production-grade resilience, security, and versioning. Use this agent when you need to: design a GraphQL schema with federation for a new microservice, build a resilient REST client with circuit breaker and bulkhead patterns, choose between REST/GraphQL/gRPC for a new service, or implement secure API authentication and rate limiting. <example> <user_request>Design a GraphQL API for an e-commerce catalog service with p

Use this agent when designing new APIs, creating API specifications, or refactoring existing API architecture for scalability and developer experience. Invoke when you need REST/GraphQL/gRPC endpoint design, OpenAPI 3.1 documentation, authentication patterns, API versioning strategies, or protocol selection for internal microservices. Use PROACTIVELY before backend implementation begins to establish the API contract. Specifically:\n\n<example>\nContext: A team is building a new microservice and

Software architecture modernization specialist. Use PROACTIVELY for monolith decomposition, microservices design, event-driven architecture, and scalability improvements.

Arm Cloud Migration Assistant accelerates moving x86 workloads to Arm infrastructure. It scans the repository for architecture assumptions, portability issues, container base image and dependency incompatibilities, and recommends Arm-optimized changes. It can drive multi-arch container builds, validate performance, and guide optimization, enabling smooth cross-platform deployment directly inside GitHub.

Export existing Azure resources to Infrastructure as Code templates via Azure Resource Graph analysis, Azure Resource Manager API calls, and azure-iac-generator integration. Use this skill when the user asks to export, convert, migrate, or extract existing Azure resources to IaC templates (Bicep, ARM Templates, Terraform, Pulumi).

Central hub for generating Infrastructure as Code (Bicep, ARM, Terraform, Pulumi) with format-specific validation and best practices. Use this skill when the user asks to generate, create, write, or build infrastructure code, deployment code, or IaC templates in any format (Bicep, ARM Templates, Terraform, Pulumi).

Create, update, or review Azure IaC in Bicep using Azure Verified Modules (AVM).

Create, update, or review Azure IaC in Terraform using Azure Verified Modules (AVM).

Backend system architecture and API design specialist. Use PROACTIVELY for greenfield service design, monolith decomposition, API paradigm selection (REST/gRPC/GraphQL), microservice boundaries, database schemas, scalability planning, event-driven architecture, and observability design. This agent focuses on architecture and design decisions — for writing implementation code use the backend-developer agent instead.\n\n<example>\nContext: An existing Rails monolith is growing too large and needs

Use this agent when building server-side APIs, microservices, and backend systems that require robust architecture, scalability planning, and production-ready implementation. Specifically:\\n\\n<example>\\nContext: A project needs a new RESTful API service with database persistence, authentication, and caching for handling high-traffic requests.\\nuser: \"We need to build a user service API that handles 10k RPS with sub-100ms latency. It should support OAuth2 authentication, PostgreSQL for persi

Act as an Azure Bicep Infrastructure as Code coding specialist that creates Bicep templates.

Use this agent when building smart contracts, DApps, and blockchain protocols that require expertise in Solidity, gas optimization, security auditing, and Web3 integration. Specifically:\n\n<example>\nContext: A team is building a DeFi protocol and needs to implement smart contracts for an AMM with liquidity pools, yield farming, and governance tokens.\nuser: \"We need to build an AMM protocol similar to Uniswap. Requirements: ERC20 token support, liquidity pool management, automated market make

Write efficient C code with proper memory management, pointer arithmetic, and system calls. Handles embedded systems, kernel modules, and performance-critical code. Use PROACTIVELY for C optimization, memory issues, or system programming.

Write idiomatic C# code with modern language features, async patterns, and LINQ. Masters .NET ecosystem, Entity Framework Core, and ASP.NET Core. Use PROACTIVELY for C# optimization, refactoring, or complex .NET solutions.

Use this agent when building command-line tools and terminal applications that require intuitive command design, cross-platform compatibility, and optimized developer experience. Specifically:\\n\\n<example>\\nContext: A development team needs a new CLI tool for managing local database migrations and seeding with interactive workflows.\\nuser: \"We need a CLI tool that lets developers manage database migrations. It should support interactive prompts, show migration status, handle rollbacks, and

Expert Clojure pair programmer with REPL-first methodology, architectural oversight, and interactive problem-solving. Enforces quality standards, prevents workarounds, and develops solutions incrementally through live REPL evaluation before file modifications.

Designs feature architectures by analyzing existing codebase patterns and conventions, then providing comprehensive implementation blueprints with specific files to create/modify, component designs, data flows, and build sequences

Simplifies and refines code for clarity, consistency, and maintainability while preserving all functionality. Focuses on recently modified code unless instructed otherwise.

Specialist for finding code patterns and examples in the codebase, providing concrete implementations that can serve as templates for new work

Computer vision and image processing specialist. Use PROACTIVELY for image analysis, object detection, face recognition, OCR implementation, and visual AI applications.

Expert in latest library versions, best practices, and correct syntax using up-to-date documentation

Use this agent when building high-performance C++ systems requiring modern C++20/23 features, template metaprogramming, or zero-overhead abstractions for systems programming, embedded systems, or performance-critical applications. Specifically:\\n\\n<example>\\nContext: Implementing a low-latency trading system that needs custom memory allocators and lock-free data structures.\\nuser: \"We need a high-frequency trading engine that processes 100k orders/sec with sub-microsecond latency. Requireme

Use this agent when building ASP.NET Core web APIs, cloud-native .NET solutions, or modern C# applications requiring async patterns, dependency injection, Entity Framework optimization, and clean architecture. Specifically:\\n\\n<example>\\nContext: Building a production ASP.NET Core REST API with database integration, authentication, and comprehensive testing.\\nuser: \"I need to create an ASP.NET Core 8 API with EF Core, JWT authentication, Swagger documentation, and 85%+ test coverage. Should

Perform janitorial tasks on C#/.NET code including cleanup, modernization, and tech debt remediation.

Expert assistant for developing Model Context Protocol (MCP) servers in C#

Expert at designing and creating VS Code custom agents with optimal configurations

Database architecture and design specialist. Use PROACTIVELY for database design decisions, data modeling, scalability planning, microservices data patterns, and database technology selection. This agent designs and plans; hand off PostgreSQL tuning to postgres-pro and Neon-specific work to neon-database-architect. Specifically:\n\n<example>\nContext: A startup is building a new SaaS platform for project management and needs to design the database from scratch.\nuser: \"We're starting a new mult

Validate user understanding of code, design patterns, and implementation details through guided questioning.

Use when building Django 4+ web applications, REST APIs, or modernizing existing Django projects with async views and enterprise patterns. Specifically:\\n\\n<example>\\nContext: Team needs to build a production-ready REST API with JWT authentication, role-based permissions, and async handlers for high-traffic endpoints\\nuser: \"We're building a real-time notification system using Django REST Framework with WebSockets. Need to handle 10k+ concurrent users with proper authentication and rate lim

Use when building .NET Core applications requiring cloud-native architecture, high-performance microservices, modern C# patterns, or cross-platform deployment with minimal APIs and advanced ASP.NET Core features. Specifically:\\n\\n<example>\\nContext: Building a microservices platform with multiple .NET 10 services that need cloud-native deployment, health checks, and distributed tracing across services.\\nuser: \"I need to build a system with 5 microservices in .NET 10 using minimal APIs, each

Use this agent when working on legacy .NET Framework 4.8 enterprise applications that require maintenance, modernization, or integration with Windows-based infrastructure. Specifically:\\n\\n<example>\\nContext: User has a legacy ASP.NET Web Forms application running on .NET Framework 4.8 that needs security updates and performance optimization.\\nuser: \"We have a 10-year-old Web Forms application with ViewState bloat and some outdated security patterns. How can we modernize it without a comple