C# and .NET for Codex

Azure/azure-sdk-for-net

Skill Claude CodeCodex needs its repo ✓ vendor

Generate the code from typespec for C#. Parameter: C# SDK repository root location .

NuGet/Home

MCP server Claude CodeCodexCursor +2

MCP server "nuget" as configured in NuGet/Home. Launched with NuGet.Mcp.Server.

qq362946/Fantasy

Skill Claude CodeCodex

This guide applies to development and code review for Fantasy / Fantasy.Net / Fantasy.Unity written in C#. Use it when a task involves Fantasy server code or Unity client code using Fantasy, ECS entities/components/systems, scenes and subscenes, FTask, network handlers/messages/protocols, Address or Roaming routing…

clawdotnet/openclaw.net

Skill Claude CodeCodex

Extract structured insight briefs from community research transcripts or notes. Produces pain points, stakeholder needs, opportunity maps, risks, and follow-up questions. Requires human review before publication.

managedcode/dotnet-skills

Skill Claude CodeCodex

Use this skill before answering, planning, or editing any MSTest 3.x-to-4.x upgrade or post-upgrade failure. Triggers include "MSTest v4 breaking changes"; CS0507/CS0103/CS1061/CS1615; ExecuteAsync, CallerInfo, DisplayName, or custom TestMethodAttribute; ClassCleanupBehavior; ContainsKey; ThrowsExactly or…

FritzAndFriends/BlazorWebFormsComponents

Skill Claude CodeCodex needs its repo

Migrate ASP.NET Web Forms applications to Blazor Server using the webforms-to-blazor CLI tool and BlazorWebFormsComponents (BWFC). Orchestrates L1 automated transforms via CLI, then guides L2 contextual transforms. WHEN: "migrate aspx", "convert web forms", "web forms to blazor", "run migration". INVOKES…

isuzu-shiranui/UnityMCP

Skill Claude CodeCodex

Drive the open Unity Editor from the shell with the isuzu-unity-cli command: console errors, compiling and tests, scenes, GameObjects and components, prefabs, play mode, uGUI clicks, and C# run inside the Editor. SKILL.md gives a command for each common task, so no tool list is needed.

SebastienDegodez/copilot-instructions

Skill Claude CodeCodex

Use when domain logic leaks into API/Infrastructure, project references violate layer boundaries, or you need to decide between CQS (always), CQRS bus (complex domains), and DDD patterns (invariants and events).

xberg-io/crawlberg

Skill Claude CodeCodex needs its repo

Crawlberg iteration loops codified as Taskfile tasks — alef install/generate/format/bump, core and binding builds, e2e generate/build/test cycles, cleanup tiers, and the mock-server / stale-.so / precompiled-NIF / generated-e2e gotchas. Load when running or debugging crawlberg build, alef regeneration, or e2e…

mitchdenny/hex1b

Skill Claude CodeCodex

This skill provides guidance for AI agents working with the Hex1b TUI (Terminal User Interface) library and its MCP diagnostic tools.

AgentEvalHQ/AgentEval

Skill Claude CodeCodex

Query .NET APIs across NuGet packages, platform libraries, and local files. Search for types, list API surfaces, compare and diff versions, find extension methods and implementors. Use whenever you need to answer questions about .NET library contents.

Aiko-IT-Systems/DisCatSharp

Skill Codex

Review, modify, test, document, or release the DisCatSharp repository. Use for DisCatSharp source changes, API additions and migrations, Discord payload models, serialization, command synchronization, Gateway dispatch, REST behavior, analyzer work, multi-target testing, DocFX generation, release notes, and repository…

realsenseai/RealSenseID

Skill Claude CodeCodex

RealSenseID face authentication SDK reference. Use when writing code for face enrollment, authentication, host-mode faceprint extraction/matching, device configuration, user management, device discovery, camera preview, logging, or serial connection. Covers C++ (RealSenseID namespace), Python (rsidpy), and C# (rsid).

TimeWarpEngineering/timewarp-nuru

Skill Claude CodeCodex needs its repo

Build CLI applications with TimeWarp.Nuru - a .NET route-based CLI framework with web-style routing, source generators, and AOT support. Use when creating CLI tools, defining commands/queries, adding parameters or options, testing CLI output, or working with TimeWarp.Nuru.

EvotecIT/DesktopManager

Skill Codex

Verify real Windows chat-app workflows through DesktopManager MCP. Use when an MCP-capable assistant should open a desktop chat app, inspect its window and controls, type into the prompt area, send a message, and verify the visible result with screenshots and structural or app-owned evidence.

mrpmorris/Roslynk

Skill Claude CodeCodex

How to use the Roslynk MCP tools (mcproslynk) effectively for C# work. Use this whenever a Roslynk server is connected and the task touches C# code in a solution — checking for compile errors or warnings, finding a symbol's definition, references, callers, or implementations, renaming symbols, applying code fixes or…

znlgis/opengis-skills

Skill Claude CodeCodex

Use when processing AEC/BIM 3D data in .NET 8 — mesh generation and transformation, SIMD-accelerated math, IFC/STEP/PLY to glTF/GLB/VIM conversion, plugin development. Ara3D-SDK: high-performance .NET 3D geometry and BIM library suite.

syncfusion/maui-ui-components-skills

Skill Claude CodeCodex

Sets up and validates Syncfusion .NET MAUI licensing, including license key registration, generation, and error resolution. Use when encountering trial license warnings ("This application was built using a trial version"), licensing errors, license key registration, unlock key vs license key confusion, build server or…

carquiza/RoslynMCP

MCP server Claude CodeCodexCursor +2

MCP server "roslyn-code-navigator" as configured in carquiza/RoslynMCP. Launched with dotnet run --project D:\Source\RoslynMCP\RoslynMcpServer. Needs 2 environment variables to run.

dotnet-presentations/ai-workshop

Skill Claude CodeCodex

Walk through the .NET AI Workshop as an attendee to validate that the READMEs, commands, and code snapshots still work. USE FOR: testing the workshop, testing a specific Part, dry-running the labs, verifying a README against its snapshot, reconciling or refreshing code snapshots, producing a workshop test report. DO…

gavogavogavo/claude-sbox

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 …

ara3d/ara3d-sdk

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…

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.

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.