API Design Agent Skills

Create, update, refactor, explain, or review Semantic Kernel solutions using shared guidance plus language-specific references for .NET and Python.

Searches a local cache of Windows WinMD metadata to find the right Windows API for any capability and retrieve full type details including methods, properties, events, and enumeration values.

Provides best practices for building idiomatic Spring Boot applications with Kotlin, covering project setup, dependency injection, configuration, web layer, services, data layer, testing, and coroutines.

Create and develop Microsoft 365 Copilot declarative agents with three workflows covering basic creation, enterprise design, and validation, using TypeSpec and the Microsoft 365 Agents Toolkit.

Build production-quality Model Context Protocol (MCP) servers in C#/.NET using the official 1.x NuGet packages, covering transports, tools, prompts, resources, and common pitfalls.

Enables decoupled pub/sub messaging between ViewModels using CommunityToolkit.Mvvm Messenger, covering weak/strong references, request/reply patterns, channel tokens, and lifecycle management.

Add GET, POST, PATCH, and DELETE operations to a TypeSpec API plugin with proper routing, parameters, and adaptive cards.

Create ASP.NET Minimal API endpoints with proper types and comprehensive OpenAPI/Swagger documentation.

Generate TypeSpec API plugin files for Microsoft 365 Copilot, defining REST operations, authentication, and Adaptive Cards.

Generate Python SDK setup, CRUD, bulk, and paging snippets for Microsoft Dataverse using official patterns.

Generate a complete, production-ready application from an OpenAPI specification using the active framework's conventions and best practices.

Scaffolds a Spring Boot Java project with Maven, PostgreSQL, Redis, MongoDB, and Docker Compose.

Generate a complete, production-ready MCP server project in TypeScript with tools, resources, and proper configuration.

Generate production-ready Dataverse SDK solutions with architecture recommendations, data models, and implementation code for common business use cases.

Generates detailed, technology-agnostic implementation blueprints by analyzing project architecture, technology stacks, and data flow patterns.

Creates a GitHub issue from a specification file using a feature request template, checking for existing issues first.

Provides full-stack development practices covering backend architecture, frontend-backend integration, and production hardening with structured workflows and checklists.

Migrate Mini Apps from MiniKit (OnchainKit) to native Farcaster SDK with async context patterns, hook-by-hook mappings, FrameProvider setup, and manifest configuration.

Provides verified contract addresses for major DeFi protocols across Ethereum mainnet and L2s, verified on-chain via eth_getCode.

Learn to combine DeFi protocols safely: Uniswap V4 hooks, Aave flash loans, ERC-4626 vaults, Aerodrome on Base, GMX/Pendle on Arbitrum, and dominant DEX per L2.

List and manage cryptocurrency wallets, accounts, and portfolio data via the Coinbase CDP SDK.

Design, simulate, and run quantum circuits on Google Quantum AI hardware and partner backends using Cirq.

Perform exact symbolic mathematics in Python — algebra, calculus, equation solving, symbolic linear algebra, and code generation via lambdify or LaTeX.

Build and execute quantum circuits on IBM Quantum hardware, simulators, and third-party providers using the Qiskit framework.

Provides domain-specific best practices for Node.js development with TypeScript, covering type stripping, async patterns, error handling, streams, modules, testing, performance, caching, logging, and more.

Guides development of Fastify Node.js backend servers and REST APIs using TypeScript or JavaScript, covering routes, plugins, validation, error handling, authentication, testing, performance, logging, deployment, and more.

Build a SCIM 2.0-compliant API server and integrate it with Okta for automated user provisioning, deprovisioning, profile updates, and group management.

Test web applications for XML injection vulnerabilities including XXE, XPath injection, and XML entity attacks to identify data exposure and server-side request forgery risks.

Design scalable distributed systems using structured approaches for load balancing, caching, database scaling, and message queues.

Structure software around the Dependency Rule so that source code dependencies point inward from frameworks to use cases to entities, keeping business rules independent of databases, UI, and external agencies.

Model software around the business domain using bounded contexts, aggregates, and ubiquitous language, with scoring and diagnostic tools for evaluating domain model quality.

Build modern PHP applications with strict typing, PHPStan level 9, Laravel or Symfony, and enterprise patterns including DTOs, DI, and comprehensive testing.

Implements concurrent Go patterns using goroutines and channels, designs and builds microservices with gRPC or REST, optimizes Go application performance with pprof, and enforces idiomatic Go with generics, interfaces, and robust error handling.

Optimizes Active Record queries, implements Turbo Frames and Streams, configures Action Cable, sets up Sidekiq workers, and writes RSpec test suites for Rails 7+ applications.

Scaffolds NestJS modules, controllers, services, DTOs, guards, and interceptors for enterprise-grade TypeScript backends, with built-in validation, authentication, and testing patterns.

Build high-performance async Python APIs with FastAPI and Pydantic V2, including REST endpoints, authentication, async database operations, and WebSocket support.