aaronontheweb-dotnet-skills-2

Plugin aaronontheweb-dotnet-skills-2 from marketplace cascade-featured in joshuarweaver/cascade-featured. Commands read from the repo's manifest — 1 month ago.

Skills (37)

• akka-net-aspire-configuration

  Configure Akka.NET with .NET Aspire for local development and production deployments. Covers actor system setup, clustering, persistence, Akka.Management integration, and Aspire orchestration patterns.

• akka-net-best-practices

  Critical Akka.NET best practices including EventStream vs DistributedPubSub, supervision strategies, error handling, Props vs DependencyResolver, work distribution patterns, and cluster/local mode abstractions for testability.

• akka-hosting-actor-patterns

  Patterns for building entity actors with Akka.Hosting - GenericChildPerEntityParent, message extractors, cluster sharding abstraction, akka-reminders, and ITimeProvider. Supports both local testing and clustered production modes.

• akka-net-management

  Akka.Management for cluster bootstrapping, service discovery (Kubernetes, Azure, Config), health checks, and dynamic cluster formation without static seed nodes.

• akka-net-testing-patterns

  Write unit and integration tests for Akka.NET actors using modern Akka.Hosting.TestKit patterns. Covers dependency injection, TestProbes, persistence testing, and actor interaction verification. Includes guidance on when to use traditional TestKit.

• aot-trimming

  Guidelines for making .NET libraries and applications trimming-safe and Native AOT compatible. Covers the trimming/AOT model, the MSBuild properties that enable analysis (IsTrimmable, IsAotCompatible, PublishTrimmed, PublishAot), the trimming attributes (RequiresUnreferencedCode, RequiresDynamicCode

• aspire-configuration

  Configure Aspire AppHost to emit explicit app config via environment variables; keep app code free of Aspire clients and service discovery.

• aspire-integration-testing

  Write integration tests using .NET Aspire's testing facilities with xUnit. Covers test fixtures, distributed application setup, endpoint discovery, and patterns for testing ASP.NET Core apps with real dependencies.

• mailpit-integration

  Test email sending locally using Mailpit with .NET Aspire. Captures all outgoing emails without sending them. View rendered HTML, inspect headers, and verify delivery in integration tests.

• aspire-service-defaults

  Create a shared ServiceDefaults project for Aspire applications. Centralizes OpenTelemetry, health checks, resilience, and service discovery configuration across all services.

• crap-analysis

  Analyze code coverage and CRAP (Change Risk Anti-Patterns) scores to identify high-risk code. Use OpenCover format with ReportGenerator for Risk Hotspots showing cyclomatic complexity and untested code paths.

• api-design

  Design stable, compatible public APIs using extend-only design principles. Manage API compatibility, wire compatibility, and versioning for NuGet packages and distributed systems.

• modern-csharp-coding-standards

  Write modern, high-performance C# code using records, pattern matching, value objects, async/await, Span<T>/Memory<T>, and best-practice API design patterns. Emphasizes functional-style programming with C# 12+ features.

• csharp-concurrency-patterns

  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. Avoid locks and manual synchronization unless absolutely necessary.

• csharp-nullable-reference-types

  Guidelines for introducing and using nullable reference types (NRT) and System.Diagnostics.CodeAnalysis nullable attributes in C# / .NET codebases. Covers the nullability model, flow analysis, the null-forgiving operator, API design rules, the full attribute catalog (AllowNull, DisallowNull, MaybeNu

• type-design-performance

  Design .NET types for performance. Seal classes, use readonly structs, prefer static pure functions, avoid premature enumeration, and choose the right collection types.

• database-performance

  Database access patterns for performance. Separate read/write models, avoid N+1 queries, use AsNoTracking, apply row limits, and never do application-side joins. Works with EF Core and Dapper.

• dotnet-devcert-trust

  Diagnose and fix .NET HTTPS dev certificate trust issues on Linux. Covers the full certificate lifecycle from generation to system CA bundle inclusion, with distro-specific guidance for Ubuntu, Fedora, Arch, and WSL2.

• efcore-patterns

  Entity Framework Core best practices including NoTracking by default, query splitting for navigation collections, migration management, dedicated migration services, and common pitfalls to avoid.

• ilspy-decompile

  Understand implementation details of .NET code by decompiling assemblies. Use when you want to see how a .NET API works internally, inspect NuGet package source, view framework implementation, or understand compiled .NET binaries.

• dotnet-local-tools

  Managing local .NET tools with dotnet-tools.json for consistent tooling across development environments and CI/CD pipelines.

• marketplace-publishing

  Workflow for publishing skills and agents to the dotnet-skills Claude Code marketplace. Covers adding new content, updating plugin.json, validation, and release tagging.

• microsoft-extensions-configuration

  Microsoft.Extensions.Options patterns including IValidateOptions, strongly-typed settings, validation on startup, and the Options pattern for clean configuration management.

• dependency-injection-patterns

  Organize DI registrations using IServiceCollection extension methods. Group related services into composable Add* methods for clean Program.cs and reusable configuration in tests.

• mjml-email-templates

  Build responsive email templates using MJML markup language. Compiles to cross-client HTML that works in Outlook, Gmail, and Apple Mail. Includes template renderer, layout patterns, and variable substitution.

• opentelemetry-net-instrumentation

  Provides guidance for implementing OpenTelemetry instrumentation in .NET codebases, covering tracing (Activities/Spans), metrics, logs, naming conventions, error handling, performance, SDK setup, resources, context propagation, and API design best practices.

• package-management

  Manage NuGet packages using Central Package Management (CPM) and dotnet CLI commands. Never edit XML directly - use dotnet add/remove/list commands. Use shared version variables for related packages.

• playwright-blazor-testing

  Write UI tests for Blazor applications (Server or WebAssembly) using Playwright. Covers navigation, interaction, authentication, selectors, and common Blazor-specific patterns.

• playwright-ci-caching

  Cache Playwright browser binaries in CI/CD pipelines (GitHub Actions, Azure DevOps) to avoid 1-2 minute download overhead on every build.

• dotnet-project-structure

  Modern .NET project structure including .slnx solution format, Directory.Build.props, central package management, SourceLink, version management with RELEASE_NOTES.md, and SDK pinning with global.json.

• r3-reactive-extensions

  Build reactive/event-driven C# with R3 (Cysharp's modern reimplementation of Reactive Extensions). Covers the Observable<T>/Observer<T> model, the OnErrorResume error contract, async dispatch with AwaitOperation, Task/IAsyncEnumerable integration, TimeProvider/FrameProvider scheduling, the concurren

• serialization

  Choose the right serialization format for .NET applications. Prefer schema-based formats (Protobuf, MessagePack) over reflection-based (Newtonsoft.Json). Use System.Text.Json with AOT source generators for JSON scenarios.

• skills-index-snippets

  Create and maintain AGENTS.md / CLAUDE.md snippet indexes that route tasks to the correct dotnet-skills skills and agents (including compressed Vercel-style indexes).

• dotnet-slopwatch

  Use Slopwatch to detect LLM reward hacking in .NET code changes. Run after every code modification to catch disabled tests, suppressed warnings, empty catch blocks, and other shortcuts that mask real problems.

• snapshot-testing

  Use Verify for snapshot testing in .NET. Approve API surfaces, HTTP responses, rendered emails, and serialized outputs. Detect unintended changes through human-reviewed baseline files.

• testcontainers-integration-tests

  Write integration tests using TestContainers for .NET with xUnit. Covers infrastructure testing with real databases, message queues, and caches in Docker containers instead of mocks.

• verify-email-snapshots

  Snapshot test email templates using Verify to catch regressions. Validates rendered HTML output matches approved baseline. Works with MJML templates and any email renderer.

Subagents (6)

• akka-net-specialist

  Expert in Akka.NET architecture, actor systems, and distributed computing patterns. Specializes in analyzing actor lifecycle issues, message passing problems, cluster coordination, persistence, and stream processing. Use for Akka.NET-specific debugging, architecture decisions, and understanding acto

• docfx-specialist

  Expert in DocFX documentation system, markdown formatting, and Akka.NET documentation standards. Handles DocFX-specific syntax, API references, build validation, and compliance with project documentation guidelines. Integrates markdownlint and DocFX compilation checks.

• dotnet-benchmark-designer

  Expert in designing effective .NET performance benchmarks and instrumentation. Specializes in BenchmarkDotNet patterns, custom benchmark design, profiling setup, and choosing the right measurement approach for different scenarios. Knows when BenchmarkDotNet isn't suitable and custom benchmarks are n

• dotnet-concurrency-specialist

  Expert in .NET concurrency, threading, and race condition analysis. Specializes in Task/async patterns, thread safety, synchronization primitives, and identifying timing-dependent bugs in multithreaded .NET applications. Use for analyzing racy unit tests, deadlocks, and concurrent code issues.

• dotnet-performance-analyst

  Expert in analyzing .NET application performance data, profiling results, and benchmark comparisons. Specializes in JetBrains profiler analysis, BenchmarkDotNet result interpretation, baseline comparisons, regression detection, and performance bottleneck identification.

• roslyn-incremental-generator-specialist

  Design and maintain Roslyn incremental source generators with strict pipeline discipline, parser vs emitter separation, and long-term maintainability for large generator suites.

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