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Found 507 Skills
Creates hybrid Native AOT + CoreCLR .NET 10 tool packages using ToolPackageRuntimeIdentifiers. Use for building high-performance CLI tools with Native AOT on supported platforms and CoreCLR fallback for universal compatibility.
Migrates desktop apps. WPF/WinForms to .NET 8+, WPF to WinUI or Uno, UWP to WinUI.
Builds .NET 10 file-based C# apps. Directives, CLI commands, csproj migration.
Using System.CommandLine 2.0. Commands, options, SetAction, custom parsing, middleware, testing.
Implements the Syncfusion dotnet Calculate Library for parsing and evaluating formulas using CalcEngine, ICalcData, CalcQuickBase, and ExcelLikeComputations. Supports formula computation, custom functions, cross-sheet references, and XlsIO formula evaluation. Trigger when implementing formula calculations, expression parsing, workbook formula evaluation, or custom function registration.
Use the free official JetBrains ReSharper Command Line Tools for .NET repositories. Use when a repo wants powerful `jb inspectcode` inspections, `jb cleanupcode` cleanup profiles, solution-level `.DotSettings` enforcement, or a stronger CLI quality gate for C# than the default SDK analyzers alone.
Validates custom dotnet new templates for correctness before publishing. Catches missing fields, parameter bugs, shortName conflicts, constraint issues, and common authoring mistakes that cause templates to fail silently. USE FOR: checking template.json files for errors before publishing or testing, diagnosing why a template doesn't appear after installation, reviewing template parameter definitions for type mismatches and missing defaults, finding shortName conflicts with dotnet CLI commands, validating post-action and constraint configuration. DO NOT USE FOR: finding or using existing templates (use template-discovery), creating projects from templates (use template-instantiation), creating templates from existing projects (use template-authoring).
Builds high-perf network I/O. PipeReader/PipeWriter, backpressure, protocol parsers, Kestrel.
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.
Use this skill when writing or reviewing C# code to follow project conventions. Covers naming standards, async patterns, CancellationToken usage, structured logging, nullable reference types, and formatting rules. Apply when authoring new C# classes, reviewing code style, or ensuring consistency with existing patterns.
Diagnose MSBuild build performance bottlenecks using binary log analysis. Only activate in MSBuild/.NET build context. USE FOR: identifying why builds are slow by analyzing binlog performance summaries, detecting ResolveAssemblyReference (RAR) taking >5s, Roslyn analyzers consuming >30% of Csc time, single targets dominating >50% of build time, node utilization below 80%, excessive Copy tasks, NuGet restore running every build. Covers timeline analysis, Target/Task Performance Summary interpretation, and 7 common bottleneck categories. Use after build-perf-baseline has established measurements. DO NOT USE FOR: establishing initial baselines (use build-perf-baseline first), fixing incremental build issues (use incremental-build), parallelism tuning (use build-parallelism), non-MSBuild build systems. INVOKES: dotnet msbuild binlog replay with performancesummary, grep for analysis.
Generating OpenAPI docs. MS.AspNetCore.OpenApi (.NET 9+), Swashbuckle migration, NSwag.