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.
MCP server Claude CodeCodexCursor +2
stdio bridge for the local Funplay MCP for Godot editor addon. Runs locally from the funplay-godot-mcp npm package. Needs 4 environment variables to run.
Skill Claude CodeCodex
Use when writing or modifying code for s&box, sbox, the Facepunch sandbox engine, or any Source 2 game project in C#. Triggers on mentions of s&box, sbox, sandbox game, Facepunch engine, Source 2 game, .sbproj, .razor with PanelComponent, @inherits PanelComponent, Sandbox.Component, GameObject + Components.Get …
Skill Claude CodeCodex
Author Ara 3D Studio tools — generators (make geometry) and modifiers (transform geometry) — as standalone C# scripts. Use when the user says "write a modifier", "create a generator", "make an Ara 3D tool", "new Studio script", asks how modifiers/generators/Eval/parameters/EvalContext work, or wants to add a mesh…
MCP server Claude CodeCodexCursor +2
67 semantic C#/.NET analysis tools via Roslyn: navigation, refactoring, codegen, audit. Runs locally from the sharplens-mcp npm package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
MCP server "agrus-scanner", hosted remotely at localhost, as configured in NYBaywatch/AgrusScanner.
syncfusion/maui-toolkit-ui-components-skills
Skill Claude CodeCodex
Migrate from Syncfusion® .NET MAUI to Syncfusion® Toolkit for .NET MAUI. Covers namespace updates, API changes, configuration methods, and step-by-step migration patterns with minimal code modifications for 20+ components.
MCP server Claude CodeCodexCursor +2
MCP server "fuse" as configured in Litenova-Solutions/Fuse. Launched with Fuse.
MCP server Claude CodeCodexCursor +2
MCP server "dotnet-mcp" as configured in jongalloway/dotnet-mcp. Launched with Community.Mcp.DotNet. Needs 2 environment variables to run.
wieslawsoltes/Performance-Skill
Skill Claude CodeCodex
Evidence-first performance engineering workflow for coding agents combining portable .NET diagnostics with platform-native profiling, BenchmarkDotNet, application benchmarking, statistical validation, deployment, container, graphics, and GPU procedures.
Skill Claude CodeCodex
Helps set up C# library projects that provide nodes to vvvv gamma — project directory structure, Initialization.cs with AssemblyInitializer, service registration via RegisterService, IResourceProvider factories, ImportAsIs / ImportNamespace / ImportType selection, category organization, aspects…
Skill Claude CodeCodex
Debug .NET applications using debug-mcp MCP tools — launch processes, set breakpoints, step through code, inspect variables, evaluate expressions, and analyze exceptions. Use this skill when debugging .NET/C# applications, investigating runtime behavior, diagnosing exceptions, inspecting object state, or performing…
kevintsengtw/dotnet-testing-agent-skills
Skill Claude CodeCodex
A guide to testing .NET Aspire distributed applications, which are programs made of several coordinated services. It covers tests that run the real service setup through an AppHost, the project that describes how those services are arranged.
Skill Claude CodeCodex
Comprehensive guide for AI assistants on using the StringExtensions and StringHelper APIs.
Skill Claude CodeCodex
Use when building or editing a Blazor UI that uses the Lumeo component library (the Lumeo NuGet package and its satellites Lumeo.Charts / Lumeo.DataGrid / Lumeo.Editor / Lumeo.Scheduler / Lumeo.Gantt / Lumeo.Motion / Lumeo.Flow), or when the user mentions Lumeo components (Button, DataGrid, Sheet, Dialog, Tabs…
MCP server Claude CodeCodexCursor +2
MCP server "codemap-mcp" as configured in bbajt/csharp-code-map. Launched with codemap-mcp. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
MCP server that gives AI coding agents accurate NXOpen .NET API knowledge via hybrid retrieval. Runs locally from the nxopen-mcp Python package.
Skill Claude CodeCodex
Register NetLogic (C#) into the live model, compile-check it, operate the design-time bridge lifecycle (start it, when new bridge code needs a Studio reopen, run design-time [ExportMethod]s SAFELY), restart the MCP service, and deploy. Use when adding code-behind, running generators/builders, when the bridge is…
magna-nz/aspnetcore-debugger-mcp
MCP server Claude CodeCodexCursor +2
MCP server "aspnetcore-debugger-mcp" as configured in magna-nz/aspnetcore-debugger-mcp. Launched with AspNetCoreDebuggerMcp.
MCP server Claude CodeCodexCursor +2
Security-first, self-hosted email archive with search, cited answers, and sending for AI agents. Remote server at {mailfathom_host}.
Skill Claude CodeCodex
Use when writing C# / VB.NET / F# code that reads, writes, manipulates, or exports Excel (.xlsx / .xls) files, generates PDF or HTML from Excel, or produces data-driven reports with FlexCel Studio for .NET (TMS Software). Triggers include Excel/xlsx from C#, XlsFile, FlexCelReport, FlexCelPdfExport, FlexCelHtmlExport…
Skill Claude CodeCodex
Create a new Fluence.Wpf consumer WPF app, a NavigationView MVVM shell, or a Windows Settings-inspired shell from the installed Fluence consumer templates.
Postpartum-genushyacinthus29/dotnet-skills
Skill Claude CodeCodex
Build or review gRPC services and clients in .NET with correct contract-first design, streaming behavior, transport assumptions, and backend service integration.
djscheuf/agentic-dev-ecosystem-template
Skill Claude CodeCodex
How to create a new CQRS Query in the .NET backend API. Use this skill when implementing new read operations (GET endpoints), retrieving data without modifying state, creating query handlers, or working with MediatR queries. This includes creating the query class, handler, response DTO, authorization checks, and…
MCP server Claude CodeCodexCursor +2
MCP server "roslyn-mcp" as configured in fnrhombus/winforms-mcp. Launched with dotnet-roslyn-mcp.
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: