888 tagged C# and .NET, measured the same way as everything else here.
Browse within: dotnet 236copilot 69code-analysis-true 31github-copilot 30blazor 28copilot-skills 27ai-assisted-development 24dotnet-skills 24ai-skills 23azure-openai 22ai-extensions 21alexa-skills-sdk 21aws-lambda 21embeddings 21
SSWConsulting/SSW.VerticalSliceArchitecture
Skill Claude CodeCodex
Scaffold a slice in this Vertical Slice Architecture template — one use case in its own folder, with its FastEndpoints endpoint, request, response, validator, and summary, plus the Feature and Group if they don't exist yet, plus tests. Use when the user says "add a slice", "add a use case", "add an endpoint", "add a…
Skill Claude CodeCodex
Understand implementation details of .NET code by decompiling assemblies. Use when the user wants to see how a .NET API works internally, inspect NuGet package source, view framework implementation, or understand compiled .NET binaries.
Calabonga/Microservice-Template
Skill Claude CodeCodex
A process for checking and updating NuGet packages, which are reusable .NET software libraries, in selected .NET 10 project templates. It checks stable versions and applies patch and minor updates while treating major updates separately.
niaka3dayo/agent-skills-vrc-udon
Skill Claude CodeCodex
UdonSharp scripting skill for VRChat SDK 3.10.4 (active and verified target). Use when writing, reviewing, debugging, or migrating UdonSharp C# and UdonBehaviour code. Positive triggers include UdonSharp, NetworkCallable, NetworkCalling, CallingPlayer, Udon network authorization, synced runtime state, a local public…
Skill Claude CodeCodex
Routes .NET/C# requests to the correct domain skill and loads coding standards as baseline for all code paths. Determines whether the task needs API, UI, testing, devops, tooling, or debugging guidance based on prompt analysis and project signals, then invokes skills in the right order. Always invoked after…
Skill Claude CodeCodex
Builds ASP.NET Core APIs, EF Core data access, gRPC, SignalR, and backend services with middleware, security (OAuth, JWT, OWASP), resilience, messaging, OpenAPI, .NET Aspire, Semantic Kernel, HybridCache, YARP reverse proxy, output caching, Office documents (Excel, Word, PowerPoint), PDF, and architecture patterns.…
Skill Claude CodeCodex
Debugs Windows and Linux/macOS applications (native, .NET/CLR, mixed-mode) with WinDbg MCP (crash dumps, !analyze, !syncblk, !dlk, !runaway, !dumpheap, !gcroot, BSOD), dotnet-dump, lldb with SOS, createdump, and container diagnostics (Docker, Kubernetes). Hang/deadlock diagnosis, high CPU triage, memory leak…
Skill Claude CodeCodex
Write and edit Comet Go single-file apps (.cs files using the Comet MVU framework for .NET MAUI). Use when writing, editing, or debugging Comet Go apps, or when the user mentions "maui go", "comet go", or is working with .cs files that import Comet.
Skill Claude CodeCodex
Create Android slim bindings for MAUI/.NET Android. USE FOR: slim Android binding, Kotlin/Java wrappers, build.gradle.kts, Maven, AAR/JAR, AndroidMavenLibrary, AndroidLibrary, @JvmStatic, XA4241/XA4242, Xamarin.AndroidX/Kotlin NuGets. DO NOT USE FOR: iOS/macOS bindings, general MAUI apps, or NuGet packaging.
Skill Claude CodeCodex
Generate a tik4net.objects O/R-mapper entity (C# class) for a MikroTik object/path — decorated with [TikEntity]/[TikProperty], correctly typed, R/O vs R/W resolved, documented (including WinBox-native GUI names), with Execute/connection-extension methods and a ToString override where appropriate. Use whenever the user…
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).
ingen084/KyoshinEewViewerIngen
Skill Claude CodeCodex
Troubleshooting guidance for building and testing the KEVi application, including its CSV source-generator dependency and operating-system-specific .NET targets.
Skill Claude CodeCodex
Output formats, curated package/library -D/-S discovery and selection, value projection, @ categories, and output limits shared across commands.
Skill Claude CodeCodex
Start an OpenAI Codex CLI session for deep reasoning and code analysis.
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.
NikiforovAll/github-copilot-rules
Skill Claude CodeCodex
This skill should be used when investigating .NET project dependencies, understanding why packages are included, listing references, or auditing for outdated/vulnerable packages.
NikiforovAll/github-copilot-rules
Skill Claude CodeCodex
This skill should be used when running .NET tests selectively with a build-first, test-targeted workflow. Use it for running tests with xUnit focus.
TimeWarpEngineering/timewarp-nuru
Skill Claude CodeCodex
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.
Skill Claude CodeCodex
Scan .NET/C# code for performance anti-patterns (async, memory/strings, collections/LINQ, regex, serialization, I/O) with tiered severity, reporting findings without editing. Use when auditing hot paths, reviewing allocation-heavy code, or analyzing the API for optimization opportunities.
Skill Claude CodeCodex
Optimize EF Core (Npgsql/PostgreSQL) queries in the .NET API — fix N+1, choose tracking modes, use compiled queries, split queries, and avoid translation traps. Use when a query is slow, emits excessive SQL, or causes high DB load. Complements the efcore-patterns scaffolding skill.
Skill Claude CodeCodex
Hosted services, background jobs, outbox patterns, and graceful shutdown handling for ASP.NET Core applications. Includes patterns for reliable job processing, distributed systems, and lifecycle management. Use when implementing background processing in ASP.NET Core applications, handling outbox patterns for reliable…
Skill Claude CodeCodex
Choosing the right concurrency abstraction in .NET - from async/await for I/O to Channels for producer/consumer to Akka.NET for stateful entity management. Covers both high-level abstractions and low-level synchronization primitives. Use when deciding how to handle concurrent operations in .NET, evaluating whether to…
Skill Claude CodeCodex
Develop EPLAN Electric P8 scripts, API extensions, and remote-control applications. Use when writing C# scripts for EPLAN (actions, event handlers, ribbon), accessing the EPLAN API (parts database, projects, pages), building external apps that drive EPLAN via Remote Client, or debugging EPLAN automation issues…
syncfusion/maui-ui-components-skills
Skill Claude CodeCodex
Implements Syncfusion .NET MAUI DataForm (SfDataForm). Use when creating data entry forms, edit forms, login forms, registration forms, or contact forms in MAUI. Covers form creation, data validation, editor customization, layout management, data binding, grouping, localization, built-in editors, custom editors, and…