interface-designer

Design cohesive C# API interfaces and RESTful controllers with DTO mapping.

Updated Aug 23, 2026

Search Tags:#design #API versioning #C##RESTful #pagination #DTO #ASP.NET Core

Ready to run

npx skills add https://github.com/kongliuli/VibeSkills --skill interface-designer

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: interface-designer
Source: https://github.com/kongliuli/VibeSkills/tree/main/Skills/C%23/common/interface-designer
Command: npx skills add https://github.com/kongliuli/VibeSkills --skill interface-designer

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps teams standardize and design cohesive API interfaces for C# projects, reducing duplication and inconsistencies across services.

Core Features & Use Cases

RESTful API design: Create consistent controllers and routes following REST conventions.
DTO-driven data contracts: Define clear DTOs and mapping patterns between entities and DTOs.
Pagination and responses: Implement consistent pagination and unified response structures across endpoints.
API versioning and governance: Manage multiple API versions with minimal friction for evolving services.
Use Case: When building a new C# service, apply these patterns to quickly deliver a scalable, testable API surface.

Quick Start

Install or apply the patterns in your C# project by configuring controllers, DTOs, and a basic ApiResponse, then reference the provided SKILL.md guidance.

Frequently Asked Questions about interface-designer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I design RESTful API controllers in C# that follow consistent conventions?▼

To design RESTful API controllers in C#, apply standard REST conventions to create consistent routes and controllers. This approach reduces duplication and inconsistencies across evolving services by relying on standard C# patterns without requiring external tooling.

What is the best way to map DTOs to entities in an ASP.NET Core API?▼

The best way to map DTOs to entities in an ASP.NET Core API is to define clear DTO-driven data contracts. Establish consistent mapping patterns between entities and DTOs to maintain cohesive interfaces and reduce duplication across your C# services.

How do I implement consistent pagination and unified responses across API endpoints?▼

Implement consistent pagination and unified responses by configuring a basic ApiResponse structure across all endpoints. This standardizes data delivery and ensures clients receive predictable, paginated payloads from your C# RESTful controllers.

Can I manage API versioning in C# without external tooling?▼

You can manage API versioning in C# without external tooling by applying standard C# patterns for governance. This approach handles multiple API versions with minimal friction, allowing your evolving services to maintain backward compatibility.

When do I need DTO-driven data contracts for a new C# service?▼

You need DTO-driven data contracts when building a new C# service to quickly deliver a scalable, testable API surface. Defining clear DTOs separates internal entities from external data shapes, ensuring consistent RESTful API behavior.