.NET · For developers

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.

Aaronontheweb/dotnet-skills

Generate MSBuild binary logs (binlogs) for build diagnostics and analysis.

microsoft/testfx

Diagnose MSBuild build performance bottlenecks using binary log analysis.

microsoft/testfx

Guidelines for writing unit tests in the Hex1b TUI library. An agent skill from mitchdenny/hex1b.

mitchdenny/hex1b

Calculates CRAP (Change Risk Anti-Patterns) for a named .NET method, class, or file.

microsoft/testfx

ACTIVATION PREREQUISITE: the request or discovered target must explicitly identify C, .NET, .cs, or .csproj; otherwise stay dormant without invoking this skill.

microsoft/testfx

DO NOT USE when the target already consumes an injected interface or built-in abstraction such as IFileSystem or TimeProvider, even if the request says "generate a wrapper"; no new wrapper is needed.

microsoft/testfx

Set up or recover MTP hot reload for a long-lived console-host edit/re-run loop in a Microsoft Testing Platform project.

microsoft/testfx

ALWAYS USE before running .NET tests or answering with a test command or flags.

microsoft/testfx

Route C and .NET requests to the exact installed specialist or smallest dotnet/skills marketplace plugin.

microsoft/testfx

MUST USE when an existing .NET test project was excluded from a .slnf/CI solution filter, disappeared from .sln/.slnx discovery, or lost its production ProjectReference; also for requests to set up…

microsoft/testfx

Install a .NET SDK locally for safe preview testing, specific-version pinning, or reproducible team setups — without modifying the system-wide installation.

microsoft/testfx

MUST USE for C/.NET deterministic tests that require the smallest production seam for DateTime/Task.Delay/File/Environment/Guid/Random, static API preservation, nested/parallel overrides, or no real…

microsoft/testfx

Mandatory unit-test and code-coverage rules for the .NET agent.

newrelic/newrelic-dotnet-agent

Query official Microsoft documentation to find concepts, tutorials, and code examples across Azure, .NET, Agent Framework, Aspire, VS Code, GitHub, and more.

microsoft/ai-agents-for-beginners

Implementation details for EF Core scaffolding (reverse engineering).

dotnet/efcore

Labels issues and pull requests in the dotnet/maui repository with area- and platform/ labels ONLY, based on technical content and platform-file conventions.

dotnet/maui

Neo4j .NET Driver v6 — IDriver lifecycle, DI registration (singleton), ExecutableQuery fluent API, ExecuteReadAsync/ExecuteWriteAsync managed transactions, IResultCursor (FetchAsync/ ToListAsync)…

neo4j-contrib/neo4j-skills

Comprehensive Avalonia 12 migration tool for AtomUI. An agent skill from AtomUI/AtomUI.

AtomUI/AtomUI

Strategic Codex model selection for .NET development workflows.

Resgrid/Core

Pseudo-mutation analysis ONLY: answer whether tests would catch a bug if production code changed, which meaningful changes would still pass, or which caller-visible mutations existing assertions…

microsoft/testfx

Audits existing tests in any language using formal, research-backed test smell names and the testsmells.org 19-smell academic taxonomy.

microsoft/testfx

C and .NET testing patterns with xUnit, FluentAssertions, mocking, integration tests, and test organization best practices.

affaan-m/ECC

Idiomatic C and .NET patterns, conventions, dependency injection, async/await, and best practices for building robust, maintainable .NET applications.

affaan-m/ECC

F testing patterns with xUnit, FsUnit, Unquote, FsCheck property-based testing, integration tests, and test organization best practices.

affaan-m/ECC

The public-API contract SmithyDotNet-generated code must match against the shipping AWS SDK for .NET - what must match vs.

aws/aws-sdk-net

Azure Application Insights SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure AI Agents Persistent SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure AI Document Intelligence SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure OpenAI SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure AI Projects SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure AI Voice Live SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Event Grid SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Event Hubs SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Identity library for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure API Center SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Resource Manager SDK for Arize AI Observability and Evaluation (.NET).

microsoft/skills

Azure Resource Manager SDK for Fabric in .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Weights & Biases SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Resource Manager SDK for Durable Task Scheduler in .NET.

microsoft/skills

Azure MySQL Flexible Server SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Resource Manager SDK for Microsoft Playwright Testing in .NET.

microsoft/skills

Azure PostgreSQL Flexible Server SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Resource Manager SDK for Redis in .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Key Vault Keys SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Azure Service Bus SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Microsoft 365 Agents SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills

Microsoft Entra Authentication Events SDK for .NET. An agent skill from microsoft/skills.

microsoft/skills