Skill

csharp-mcp-server-generator

Generates a complete .NET 8+ C# MCP server project with stdio transport, tools via attributes, Host builder DI, stderr logging, error handling, and testing docs.

.NET

backend

developer-tools

Install

npx claudepluginhub passelin/marketplace-test --plugin csharp-mcp-development

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Create a complete Model Context Protocol (MCP) server in C# with the following specifications:

SKILL.md

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MCP Integration

6 files

Guides MCP server integration in Claude Code plugins via .mcp.json or plugin.json configs for stdio, SSE, HTTP types, enabling external services as tools.

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Stats

Parent Repo Stars30612

Parent Repo Forks3653

Last CommitApr 20, 2026

Used By2 plugins

Actions

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Generate C# MCP Server

Create a complete Model Context Protocol (MCP) server in C# with the following specifications:

Requirements

Project Structure: Create a new C# console application with proper directory structure
NuGet Packages: Include ModelContextProtocol (prerelease) and Microsoft.Extensions.Hosting
Logging Configuration: Configure all logs to stderr to avoid interfering with stdio transport
Server Setup: Use the Host builder pattern with proper DI configuration
Tools: Create at least one useful tool with proper attributes and descriptions
Error Handling: Include proper error handling and validation

Implementation Details

Basic Project Setup

Use .NET 8.0 or later
Create a console application
Add necessary NuGet packages with --prerelease flag
Configure logging to stderr

Server Configuration

Use Host.CreateApplicationBuilder for DI and lifecycle management
Configure AddMcpServer() with stdio transport
Use WithToolsFromAssembly() for automatic tool discovery
Ensure the server runs with RunAsync()

Tool Implementation

Use [McpServerToolType] attribute on tool classes
Use [McpServerTool] attribute on tool methods
Add [Description] attributes to tools and parameters
Support async operations where appropriate
Include proper parameter validation

Code Quality

Follow C# naming conventions
Include XML documentation comments
Use nullable reference types
Implement proper error handling with McpProtocolException
Use structured logging for debugging

Example Tool Types to Consider

File operations (read, write, search)
Data processing (transform, validate, analyze)
External API integrations (HTTP requests)
System operations (execute commands, check status)
Database operations (query, update)

Testing Guidance

Explain how to run the server
Provide example commands to test with MCP clients
Include troubleshooting tips

Generate a complete, production-ready MCP server with comprehensive documentation and error handling.