.Rulesync

Reads and modifies SDK-style .csproj files. PropertyGroup, ItemGroup, CPM, props.

Configures GitHub Actions .NET build/test -- setup-dotnet, NuGet cache, reporting.

Calls native libraries via P/Invoke. LibraryImport, marshalling, cross-platform resolution.

Hardens .NET apps per OWASP Top 10 -- injection, auth, XSS, deprecated security APIs.

Orchestrates .NET Aspire apps. AppHost, service discovery, components, dashboard, health checks.

Runs BenchmarkDotNet microbenchmarks. Setup, memory diagnosers, baselines, result analysis.

Architects Blazor apps. Hosting models, render modes, routing, streaming, prerender.

Gates CI on perf regressions. Automated threshold alerts, baseline tracking, trend reports.

Models business domains. Aggregates, value objects, domain events, rich models, repositories.

EF Core, DbContext, AsNoTracking, query splitting.

Builds .NET 10 file-based C# apps. Directives, CLI commands, csproj migration.

Creates GitHub Releases for .NET. Release creation, assets, notes, pre-release management.

Targets multiple TFMs via polyfills and conditional compilation. PolySharp, API compat.

Creates NuGet packages. SDK-style csproj, source generators, multi-TFM, symbols, signing.

Renders rich console output. Spectre.Console tables, trees, progress, prompts, live displays.

Installs and manages .NET tools. Global, local, manifests, restore, version pinning.

Tests UI across frameworks. Page objects, test selectors, async waits, accessibility.

Upgrades .NET to a newer TFM. LTS-to-LTS, staged through STS, preview, upgrade paths.

Builds WinForms on .NET 8+. High-DPI, dark mode (experimental), DI patterns, modernization.

Designs AOT-first apps. Source gen over reflection, AOT-safe DI, serialization, factories.

Configures artifacts output layout. UseArtifactsOutput, ArtifactsPath, impact on CI and Docker.

Structures CLI app layers. Command/handler/service separation, clig.dev principles, exit codes.

Chooses CLI output format. AOT vs framework-dependent, RID matrix, single-file, dotnet tool.

Validates HTTP request inputs. .NET 10 AddValidation, FluentValidation, ProblemDetails.

Builds .NET MAUI mobile apps. Project structure, XAML/MVVM, platform services, caveats.

Creates Mermaid diagrams for .NET. Architecture, sequence, class, deployment, ER, flowcharts.

Analyzes .NET solution layout and build config -- .sln, .csproj, CPM.

Authors Roslyn analyzers. DiagnosticAnalyzer, CodeFixProvider, CodeRefactoring, multi-version.

Creates a new .NET project. Generates solution with CPM, analyzers, editorconfig, SourceLink.

Verifies complex outputs with Verify. API responses, scrubbing non-deterministic values.

Applies SOLID and DRY principles. C# anti-patterns, fixes, SRP compliance checks.

Decides how to test .NET code. Unit vs integration vs E2E decision tree, test doubles.

Implements Blazor components. Lifecycle, state management, JS interop, EditForm, QuickGrid.

Designs public .NET APIs. Naming, parameter ordering, return types, error patterns, extensions.

Optimizes LINQ queries. IQueryable vs IEnumerable, compiled queries, deferred exec, allocations.

Authors MSBuild targets, props, conditions, incremental builds, and Directory.Build patterns.

Sets up .NET solution layout. .slnx, Directory.Build.props, CPM, .editorconfig, analyzers.

Generate test data with AutoFixture, Bogus, and builder patterns for .NET testing

Detects TFM/SDK from .csproj, global.json, Directory.Build.props. Runs first.

Diagnoses slow builds and incremental failures. Binary logs, parallel builds, restore.

Detects C# code smells during review. Anti-patterns, async misuse, DI mistakes, fixes.

Maintains library compatibility. Binary/source compat rules, type forwarders, SemVer impact.

Builds event-driven systems. Pub/sub, competing consumers, DLQ, sagas, delivery guarantees.

Manages .NET release lifecycle. NBGV versioning, SemVer, changelogs, pre-release, branching.

Manages secrets and sensitive config. User secrets, environment variables, rotation.

Symbol-level refactoring with automatic reference updates using Serena MCP

Designs log pipelines. Aggregation, structured queries, sampling, PII scrubbing, correlation.

Builds .NET CLI apps with System.CommandLine 2.0. Commands, options, SetAction, parsing, testing.

Implements background work. BackgroundService, IHostedService, lifecycle, graceful shutdown.

Designs EF Core data layer architecture. Read/write split, aggregate boundaries, N+1 governance.

Tests with real infrastructure. WebApplicationFactory, Testcontainers, Aspire, fixtures.

Builds ASP.NET Core middleware. Pipeline ordering, short-circuit, exception handling.

Orients in .NET solutions -- entry points, .sln/.slnx, dependency graphs, config.

Validates models and IOptions. DataAnnotations, IValidatableObject, IValidateOptions<T>.

Releases CLI tools. GitHub Actions build matrix, artifact staging, Releases, checksums.

Deploys .NET containers. Kubernetes probes, Docker Compose for local dev, CI/CD integration.

Configures Options pattern, user secrets, and feature flags. IOptions<T>, FeatureManagement.

Chooses a data access approach. EF Core vs Dapper vs ADO.NET decision matrix, tradeoffs.

Optimizes .NET allocations and throughput. Span, ArrayPool, ref struct, sealed, stackalloc.

Designs ASP.NET Core architecture -- vertical slices, pipelines, caching, errors.