C# and .NET for Codex

894 mods tagged C# and .NET that install into Codex, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.

Also for Codex: anthropic · Git and workflow · Python · Web3 and blockchain · React · TypeScript · Go · openai · android · docker · Rust · bun

AspectGenerator

49

igor-tkachev/AspectGenerator

Skill Claude CodeCodex

Use this file as the compact agent-oriented guide for using and reviewing AspectGenerator in consuming projects.

not rated 11 changed today A 0 tokens original MIT

sinch/skills

Skill Claude CodeCodex

Write C#/.NET Sinch Functions with the Sinch.Functions.Runtime NuGet package. Use when writing or editing a function controller: answering and controlling calls with Voice API v2, IVR menus, placing, bridging or transferring calls, realtime AI voice agents, SMS/WhatsApp/RCS webhooks, custom HTTP endpoints, dependency…

not rated 11 changed 1mo ago A 94 tokens original Apache-2.0

github

51

nachum-shmilovitz-66/claude-code-visualstudio

MCP server Claude CodeCodexCursor +2

GitHub's hosted MCP server: lets the agent search code, read and create issues and pull requests. Remote server at api.githubcopilot.com.

not rated 9 1mo ago A tokens not measured copy · 92% MIT

dotnet-template-mcp

52

YuliiaKovalova/dotnet-template-mcp

MCP server Claude CodeCodexCursor +2

MCP server "dotnet-template-mcp" as configured in YuliiaKovalova/dotnet-template-mcp. Launched with DotnetTemplateMCP -y.

not rated 8 14d ago A tokens not measured original MIT

sumo-mcp

53

HypaSMarty/SUMO-MCP-Server

MCP server Claude CodeCodexCursor +2

MCP server "sumo-mcp" as configured in HypaSMarty/SUMO-MCP-Server. Runs locally from the sumo-mcp Python package.

not rated 8 26d ago A tokens not measured original MIT

netcoredbg-mcp

54

thebtf/netcoredbg-mcp

MCP server Claude CodeCodexCursor +2

MCP server for debugging C#/.NET code using netcoredbg. Runs locally from the netcoredbg-mcp Python package.

not rated 8 +1 today A tokens not measured original

sqlaugur

55

mbentham/SqlAugur

MCP server Claude CodeCodexCursor +2

MCP server "sqlaugur" as configured in mbentham/SqlAugur. Launched with SqlAugur.

not rated 8 24d ago A tokens not measured original MIT

lschaffer/tealkit

Skill Claude CodeCodex

Comprehensive .NET skill for WinForms modernization, backend services refactoring, unit & integration test generation, and automated project upgrades.

not rated 8 changed 2d ago A 33 tokens original MIT

unity-ui

57

batihandev/unity-mcp-skills

Skill Claude CodeCodex needs its repo

Use when users want to create Canvas, Button, Text, Image, or other UI elements.

not rated 7 11d ago A 22 tokens original MIT

roseline-mcp

58

Atypical-Consulting/RoselineMCP

MCP server Claude CodeCodexCursor +2

MCP server "roseline-mcp" as configured in Atypical-Consulting/RoselineMCP. Launched with RoselineMCP.

not rated 7 +1 11d ago A tokens not measured original MIT

abp-dev

59

smss123/ABP-ai-skills

Skill Claude CodeCodex

Expert guide for developing applications with the ABP Framework (abp.io) using ASP.NET Core, DDD patterns, and MVC / Razor Pages / Angular / Blazor / .NET MAUI / React Native UI. Use this skill whenever the user mentions ABP, abp.io, Volo.Abp, AbpModule, application services, aggregate roots, domain services, ABP CLI…

not rated 6 changed 5d ago A 251 tokens GPL-3.0

DamienDoumer/aspnetcore-skills

Skill Claude CodeCodex

Use when scaffolding a new ASP.NET Core solution or adding features to an existing one that must follow Clean Architecture (Domain / Application / Infrastructure / API). Enforces MediatR-based use cases, Minimal APIs organised by feature, route constants, per-layer DI extension methods, command validation via a…

not rated 6 4mo ago A 74 tokens

wpf-best-practices

61

jcurbelo/skills

Skill Claude CodeCodex

Best practices for building WPF desktop applications with C# and .NET. Use when working on WPF projects, .NET desktop apps, XAML UI, MVVM architecture, system tray apps, or any C# project using Windows Presentation Foundation.

not rated 6 8mo ago A Socket: passSnyk: pass 57 tokens

servicebricks

62

holomodular/ServiceBricks

MCP server Claude CodeCodexCursor +2

Generate a ServiceBricks C# .NET microservice as a ZIP file. Remote server at servicebricks.com.

not rated 5 9mo ago A tokens not measured original MIT

syncfusion/wpf-ui-components-skills

Skill Claude CodeCodex

Implements Syncfusion WPF DataGrid (SfDataGrid) component for displaying and manipulating tabular data in Windows Presentation Foundation applications. Use this when working with data grids, table views, or data binding scenarios. Supports sorting, filtering, grouping, editing, Excel/PDF export, drag and drop…

not rated 5 changed 15d ago A 80 tokens

clojure-events

64

muthuishere/toolnexus

Skill Claude CodeCodex

Use when asked about Clojure community events, meetups or conferences. How to fetch and report them.

not rated 5 +1 today A 27 tokens original MIT

Lggyy9/matlab2cpp-skill

Skill Codex

A workflow for moving numerical algorithms from MATLAB, a technical computing environment, into a C or C++ DLL that C# programs can call on Windows. It also checks that the converted results match MATLAB’s results.

not rated 5 4mo ago A 72 tokens original MIT

dotnet-testing

66

iamBrzDev/enterprise-agent-skills

Skill Claude CodeCodex

Implements enterprise-grade testing strategies for .NET applications using xUnit, Moq, FluentAssertions, and WebApplicationFactory. Use when writing unit tests, integration tests, or API tests in .NET or C#, configuring test projects, deciding what to mock vs what to test with real dependencies, setting up shared test…

not rated 5 1mo ago A 127 tokens original MIT

dotnet-development

67

devbyray/github-copilot-starter

Skill Claude CodeCodex

.NET coding standards and conventions including project structure, dependency injection, and best practices. Use when working with .NET projects, ASP.NET Core, or when the user asks about .NET architecture, dependency injection, async patterns, or project organization.

not rated 5 9mo ago A 52 tokens

linux-ur/discord-net-components-v2

Skill Claude CodeCodex

Reference and implementation guide for building Discord bot UIs with Discord.Net's Message Components V2 system (ComponentBuilderV2) in C#. Covers every V2-only component (Container, Section, Text Display, Thumbnail, Media Gallery, File, Separator), the shared V1/V2 interactive components (Action Row, Button…

not rated 4 4mo ago A 222 tokens original MIT

ilspycmd

69

NKingpp/ilspycmd-SKILL

Skill Claude CodeCodex

.NET assembly decompiler CLI tool. Invoke when user needs to decompile DLL/EXE files, reverse engineer .NET assemblies, extract C# source code from compiled binaries, or analyze .NET metadata.

not rated 3 5mo ago B 45 tokens original Apache-2.0

lsopenapi

70

redoxnet/mcp-lsopenapi

MCP server Claude CodeCodexCursor +2

MCP server "lsopenapi" as configured in redoxnet/mcp-lsopenapi. Launched with RedoxNet.Mcp.LsOpenApi. Needs 3 environment variables to run.

not rated 2 1mo ago A tokens not measured original MIT

unityxclaude

71

agustedire542/unityxclaude

Skill Claude CodeCodex

You have full control over Unity Editor via 24 MCP tools. This skill teaches you how to use them effectively.

not rated 2 23d ago A 0 tokens original MIT

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: