npx claudepluginhub novotnyllc/dotnet-artisan --plugin dotnet-artisanWant just this skill?
Then install: npx claudepluginhub u/[userId]/[slug]
Baseline C# skill loaded for every .NET code path. Guides language patterns (records, pattern matching, primary constructors, C# 8-15), coding standards, async/await, DI, LINQ, serialization, domain modeling, concurrency, Roslyn analyzers, globalization, native interop (P/Invoke, LibraryImport, ComWrappers), WASM interop (JSImport/JSExport), and type design. Spans 25 topics. Do not use for ASP.NET endpoint architecture, UI framework patterns, or CI/CD guidance.
This skill uses the workspace's default tool permissions.
agents/openai.yamlreferences/api-design.mdreferences/async-patterns.mdreferences/channels.mdreferences/code-smells.mdreferences/coding-standards.mdreferences/concurrency-patterns.mdreferences/configuration.mdreferences/dependency-injection.mdreferences/domain-modeling.mdreferences/dotnet-releases.mdreferences/editorconfig.mdreferences/file-io.mdreferences/globalization.mdreferences/input-validation.mdreferences/linq-optimization.mdreferences/modern-patterns.mdreferences/native-interop.mdreferences/nullable-reference-types.mdreferences/roslyn-analyzers.mddotnet-csharp
Overview
C# language patterns, coding standards, and .NET runtime features for idiomatic, performant code. This consolidated skill spans 25 topic areas. Load the appropriate companion file from references/ based on the routing table below.
Always-Load Baseline
These references define correctness and quality standards that apply to all C# code — load them by default whenever producing or reviewing code, regardless of what the user asked for:
references/coding-standards.md— naming conventions, file layout, style rulesreferences/async-patterns.md— async/await correctness, ConfigureAwait, cancellation propagation (nearly all .NET code uses async)references/solid-principles.md— SOLID, DRY, single responsibility, dependency inversion, anti-pattern detectionreferences/code-smells.md— common mistakes the agent should avoid without being told (async void, DI lifetime misuse, swallowed exceptions)references/dotnet-releases.md— .NET 10/11 and C# 14/15 features, version matrix, TFM-specific code generation rules (compensates for training data cutoff)
On-Demand References
Load these when the topic matches (see Routing Table keywords):
Routing Table
| Topic | Keywords | Description | Companion File |
|---|---|---|---|
| Coding standards | naming, file layout, style rules | Baseline C# conventions (naming, layout, style rules) | references/coding-standards.md |
| Async/await | async, Task, ConfigureAwait, cancellation | async/await, Task patterns, ConfigureAwait, cancellation | references/async-patterns.md |
| Dependency injection | DI, services, scopes, keyed, lifetimes | MS DI, keyed services, scopes, decoration, lifetimes | references/dependency-injection.md |
| Configuration | Options pattern, user secrets, feature flags | Options pattern, user secrets, feature flags, IOptions<T> | references/configuration.md |
| Source generators | IIncrementalGenerator, GeneratedRegex, LoggerMessage | IIncrementalGenerator, GeneratedRegex, LoggerMessage, STJ | references/source-generators.md |
| Nullable reference types | annotations, migration, agent mistakes | Annotation strategies, migration, agent mistakes | references/nullable-reference-types.md |
| Serialization | System.Text.Json, Protobuf, MessagePack, AOT | System.Text.Json source generators, Protobuf, MessagePack | references/serialization.md |
| Channels | Channel<T>, bounded/unbounded, backpressure | Channel<T>, bounded/unbounded, backpressure, drain | references/channels.md |
| LINQ optimization | IQueryable vs IEnumerable, compiled queries | IQueryable vs IEnumerable, compiled queries, allocations | references/linq-optimization.md |
| Domain modeling | aggregates, value objects, domain events | Aggregates, value objects, domain events, repositories | references/domain-modeling.md |
| SOLID principles | SRP, DRY, anti-patterns, compliance checks | SOLID and DRY principles, C# anti-patterns, fixes | references/solid-principles.md |
| Concurrency | lock, SemaphoreSlim, Interlocked, concurrent collections | lock, SemaphoreSlim, Interlocked, concurrent collections | references/concurrency-patterns.md |
| Roslyn analyzers | DiagnosticAnalyzer, CodeFixProvider, multi-version | DiagnosticAnalyzer, CodeFixProvider, CodeRefactoring | references/roslyn-analyzers.md |
| Editorconfig | IDE/CA severity, AnalysisLevel, globalconfig | IDE/CA severity, AnalysisLevel, globalconfig, enforcement | references/editorconfig.md |
| File I/O | FileStream, RandomAccess, FileSystemWatcher, paths | FileStream, RandomAccess, FileSystemWatcher, MemoryMappedFile | references/file-io.md |
| Native interop | P/Invoke, LibraryImport, ComWrappers, marshalling | P/Invoke, LibraryImport, ComWrappers, marshalling, cross-platform | references/native-interop.md |
| Input validation | .NET 10 AddValidation, FluentValidation | .NET 10 AddValidation, FluentValidation, ProblemDetails | references/input-validation.md |
| Validation patterns | DataAnnotations, IValidatableObject, IValidateOptions | DataAnnotations, IValidatableObject, IValidateOptions<T> | references/validation-patterns.md |
| Modern patterns | records, pattern matching, primary constructors | Records, pattern matching, primary constructors, C# 12-15 | references/modern-patterns.md |
| API design | naming, parameter ordering, return types, extensions | Naming, parameter ordering, return types, error patterns | references/api-design.md |
| Type design/perf | struct vs class, sealed, Span/Memory, collections | struct vs class, sealed, Span/Memory, collections | references/type-design-performance.md |
| Code smells | anti-patterns, async misuse, DI mistakes, fixes | Anti-patterns, async misuse, DI mistakes, fixes | references/code-smells.md |
| .NET releases | .NET 10, .NET 11, C# 14, C# 15, TFM, version, union, extension blocks, field keyword | Version matrix, new features, TFM-specific code generation | references/dotnet-releases.md |
| Globalization | CultureInfo, StringComparison, TimeZoneInfo, Rune, encoding | Culture-aware coding, string comparison, time zones, character processing | references/globalization.md |
| WASM interop | JSImport, JSExport, standalone WASM, wasm-experimental, browser | JSImport/JSExport, standalone .NET WASM, browser APIs, WASM AOT | references/wasm-interop.md |
Scope
- C# language features (C# 8-15)
- .NET runtime patterns (async, DI, config, serialization, channels, LINQ)
- Code quality (analyzers, editorconfig, code smells, SOLID)
- Type design and domain modeling
- File I/O and native interop
- Globalization (string comparison, CultureInfo, time zones, character processing, encoding)
- Input validation at the model level (DataAnnotations, IValidatableObject, FluentValidation, Options validation)
Out of scope
- ASP.NET Core / web API patterns (request-level validation, endpoint filters) -> [skill:dotnet-api]
- UI framework patterns -> [skill:dotnet-ui]
- Testing patterns -> [skill:dotnet-testing]
- Build/MSBuild/project setup -> [skill:dotnet-tooling]
- Performance profiling tools -> [skill:dotnet-tooling]
Similar Skills
Activates when the user asks about AI prompts, needs prompt templates, wants to search for prompts, or mentions prompts.chat. Use for discovering, retrieving, and improving prompts.
Search, retrieve, and install Agent Skills from the prompts.chat registry using MCP tools. Use when the user asks to find skills, browse skill catalogs, install a skill for Claude, or extend Claude's capabilities with reusable AI agent components.
Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.