API Development Agent Skills

NestJS Guards & Interceptors

Implements robust security layers and request/response transformations for NestJS applications using specialized guards and interceptors.

Rails Hotwire Development

Builds reactive, high-performance Ruby on Rails applications using Turbo and Stimulus without complex JavaScript frameworks.

Django CBV Patterns

Implements modular and reusable Django Class-Based Views for efficient web application development.

Orthogonality Principle

Design decoupled, independent system components to ensure changes in one module do not trigger unexpected ripple effects elsewhere.

GraphQL Performance Optimizer

Optimizes GraphQL API efficiency and security using complexity analysis, batching, and advanced caching strategies.

PHP Modern Features

Implement type-safe, expressive code using the latest PHP language enhancements and best practices.

Crystal Concurrency Expert

Implements high-performance concurrent applications in Crystal using fibers, channels, and parallel execution patterns.

SIP Media Negotiation

Negotiates media sessions and manages Session Description Protocol (SDP) for professional VoIP applications.

Next.js Data Fetching Master

Optimizes Next.js application performance by implementing advanced data fetching patterns like SSG, SSR, and ISR.

Absinthe GraphQL Subscriptions

Implements real-time GraphQL subscriptions using Absinthe and Phoenix to enable live data updates in Elixir applications.

Ruby Functional Patterns (Blocks, Procs, Lambdas)

Master Ruby’s functional programming paradigms by implementing blocks, procs, and lambdas with professional patterns.

GraphQL Resolver Patterns

Implements efficient, secure, and performant GraphQL resolvers using industry-standard patterns like DataLoader and context-based authentication.

Bun Runtime Development

Optimizes JavaScript and TypeScript development using Bun's high-performance runtime APIs for file I/O, HTTP servers, and native system utilities.

Apollo Client Patterns

Implements efficient Apollo Client patterns for GraphQL queries, mutations, and advanced cache management in React applications.

Relay GraphQL Fragments & Patterns

Optimizes React applications by implementing Relay fragment patterns for efficient data fetching and component-level data declaration.

Apollo GraphQL Caching Strategies

Optimizes application performance by implementing advanced Apollo Client caching, optimistic UI, and normalized state management patterns.

Relay Mutation Patterns

Implements advanced Relay GraphQL mutations including optimistic updates, connection management, and complex cache logic.

Relay GraphQL Pagination

Implements efficient GraphQL cursor-based pagination and infinite scroll patterns using Relay's connection specifications.

Global Error Handler Setup

Automates the configuration of global exception handling middleware for .NET and Python backend applications.

API Documentation Generator

Automates the setup and configuration of Swagger/OpenAPI documentation for .NET and Python API projects.

CORS Policy Configurator

Configures secure, environment-specific Cross-Origin Resource Sharing (CORS) policies for .NET and Python web applications.

QCC Plus Development Standards

Enforces architectural patterns and coding standards for the QCC Plus Claude Code CLI proxy server.

Cross-cutting Concerns Configurator

Standardizes backend infrastructure by automating the setup of logging, error handling, CORS, health checks, and API documentation for .NET and Python projects.

.NET Clean Architecture Generator

Generates production-ready .NET 10+ backend structures following Clean Architecture principles from entity definitions.

API Design Review

Evaluates API specifications and endpoint definitions against industry best practices for consistency, security, and performance.

API Contract Generator

Generates standardized API specifications including OpenAPI, AsyncAPI, and Protocol Buffers from natural language requirements.

State Machine Modeling

Generates visual state machine diagrams and executable implementation code from natural language behavior descriptions.

MCP Server Builder

Provides a comprehensive guide and structured workflow for building, testing, and evaluating high-quality Model Context Protocol (MCP) servers.

DDD COLA Architecture Expert

Architects and organizes enterprise applications using Clean Object-oriented Layered Architecture and Domain-Driven Design principles.

DDD & Hexagonal Architecture

Implements robust Domain-Driven Design and Hexagonal Architecture patterns to ensure clean code separation and long-term maintainability.