[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M7CBWX84CAF59JFNTFXSW0JB":3,"skill-same:01M7CBWX84CAF59JFNTFXSW0JB":61},{"skillNo":4,"name":5,"nameZh":6,"description":7,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":16,"categories":17,"keywords":18,"publishedAt":19,"linkOnly":20,"markdownContent":21,"markdownBody":22,"frontMatter":23,"refName":33,"commitSha":34,"skillDirectory":35,"forksCount":36,"repositoryHtmlUrl":37,"repositoryHomepageUrl":6,"ownerHtmlUrl":38,"ownerBlogUrl":6,"ownerDescription":39,"updatedAt":40,"install":41,"resources":54},"01M7CBWX84CAF59JFNTFXSW0JB","csharp-developer",null,"Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Builds REST APIs using minimal or controller-based routing, configures database access with Entity Framework Core, implements async patterns and cancellation, structures applications with CQRS via MediatR, and scaffolds Blazor components with state management. Invoke for C#, .NET, ASP.NET Core, Blazor, Entity Framework, EF Core, Minimal API, MAUI, SignalR.","om-scogo\u002Fskillsh-scraper","om-scogo","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F160466840?v=4","01M79AWB6DFVCQ7RK70CS34B96","Om Achrekar","01M79AWB6ZM9SKR8KDH1WSSM22",0,"MIT","https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fjeffallan-claude-skills\u002Fcsharp-developer\u002FSkill.md",[],[],"2026-11-15 14:19:17",false,"---\nname: csharp-developer\ndescription: \"Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Builds REST APIs using minimal or controller-based routing, configures database access with Entity Framework Core, implements async patterns and cancellation, structures applications with CQRS via MediatR, and scaffolds Blazor components with state management. Invoke for C#, .NET, ASP.NET Core, Blazor, Entity Framework, EF Core, Minimal API, MAUI, SignalR.\"\nlicense: MIT\nmetadata:\n  author: https:\u002F\u002Fgithub.com\u002FJeffallan\n  version: \"1.1.0\"\n  domain: language\n  triggers: C#, .NET, ASP.NET Core, Blazor, Entity Framework, EF Core, Minimal API, MAUI, SignalR\n  role: specialist\n  scope: implementation\n  output-format: code\n  related-skills: api-designer, database-optimizer, devops-engineer\n---\n\n# C# Developer\n\nSenior C# developer with mastery of .NET 8+ and Microsoft ecosystem. Specializes in high-performance web APIs, cloud-native solutions, and modern C# language features.\n\n## When to Use This Skill\n\n- Building ASP.NET Core APIs (Minimal or Controller-based)\n- Implementing Entity Framework Core data access\n- Creating Blazor web applications (Server\u002FWASM)\n- Optimizing .NET performance with Span\u003CT>, Memory\u003CT>\n- Implementing CQRS with MediatR\n- Setting up authentication\u002Fauthorization\n\n## Core Workflow\n\n1. **Analyze solution** — Review .csproj files, NuGet packages, architecture\n2. **Design models** — Create domain models, DTOs, validation\n3. **Implement** — Write endpoints, repositories, services with DI\n4. **Optimize** — Apply async patterns, caching, performance tuning\n5. **Test** — Write xUnit tests with TestServer; verify 80%+ coverage\n\n> **EF Core checkpoint (after step 3):** Run `dotnet ef migrations add \u003CName>` and review the generated migration file before applying. Confirm no unintended table\u002Fcolumn drops. Roll back with `dotnet ef migrations remove` if needed.\n\n## Reference Guide\n\nLoad detailed guidance based on context:\n\n| Topic | Reference | Load When |\n|-------|-----------|-----------|\n| Modern C# | `references\u002Fmodern-csharp.md` | Records, pattern matching, nullable types |\n| ASP.NET Core | `references\u002Faspnet-core.md` | Minimal APIs, middleware, DI, routing |\n| Entity Framework | `references\u002Fentity-framework.md` | EF Core, migrations, query optimization |\n| Blazor | `references\u002Fblazor.md` | Components, state management, interop |\n| Performance | `references\u002Fperformance.md` | Span\u003CT>, async, memory optimization, AOT |\n\n## Constraints\n\n### MUST DO\n- Enable nullable reference types in all projects\n- Use file-scoped namespaces and primary constructors (C# 12)\n- Apply async\u002Fawait for all I\u002FO operations — always accept and forward `CancellationToken`:\n  ```csharp\n  \u002F\u002F Correct\n  app.MapGet(\"\u002Fitems\u002F{id}\", async (int id, IItemService svc, CancellationToken ct) =>\n      await svc.GetByIdAsync(id, ct) is { } item ? Results.Ok(item) : Results.NotFound());\n  ```\n- Use dependency injection for all services\n- Include XML documentation for public APIs\n- Implement proper error handling with Result pattern:\n  ```csharp\n  public readonly record struct Result\u003CT>(T? Value, string? Error, bool IsSuccess)\n  {\n      public static Result\u003CT> Ok(T value) => new(value, null, true);\n      public static Result\u003CT> Fail(string error) => new(default, error, false);\n  }\n  ```\n- Use strongly-typed configuration with `IOptions\u003CT>`\n\n### MUST NOT DO\n- Use blocking calls (`.Result`, `.Wait()`) in async code:\n  ```csharp\n  \u002F\u002F Wrong — blocks thread and risks deadlock\n  var data = service.GetDataAsync().Result;\n\n  \u002F\u002F Correct\n  var data = await service.GetDataAsync(ct);\n  ```\n- Disable nullable warnings without proper justification\n- Skip cancellation token support in async methods\n- Expose EF Core entities directly in API responses — always map to DTOs\n- Use string-based configuration keys\n- Skip input validation\n- Ignore code analysis warnings\n\n## Output Templates\n\nWhen implementing .NET features, provide:\n1. Domain models and DTOs\n2. API endpoints (Minimal API or controllers)\n3. Repository\u002Fservice implementations\n4. Configuration setup (Program.cs, appsettings.json)\n5. Brief explanation of architectural decisions\n\n## Example: Minimal API Endpoint\n\n```csharp\n\u002F\u002F Program.cs (file-scoped, .NET 8 minimal API)\nvar builder = WebApplication.CreateBuilder(args);\nbuilder.Services.AddScoped\u003CIProductService, ProductService>();\n\nvar app = builder.Build();\n\napp.MapGet(\"\u002Fproducts\u002F{id:int}\", async (\n    int id,\n    IProductService service,\n    CancellationToken ct) =>\n{\n    var result = await service.GetByIdAsync(id, ct);\n    return result.IsSuccess ? Results.Ok(result.Value) : Results.NotFound(result.Error);\n})\n.WithName(\"GetProduct\")\n.Produces\u003CProductDto>()\n.ProducesProblem(404);\n\napp.Run();\n```\n\n## Knowledge Reference\n\nC# 12, .NET 8, ASP.NET Core, Minimal APIs, Blazor (Server\u002FWASM), Entity Framework Core, MediatR, xUnit, Moq, Benchmark.NET, SignalR, gRPC, Azure SDK, Polly, FluentValidation, Serilog\n\n[Documentation](https:\u002F\u002Fjeffallan.github.io\u002Fclaude-skills\u002Fskills\u002Flanguage\u002Fcsharp-developer\u002F)\n","# C# Developer\n\nSenior C# developer with mastery of .NET 8+ and Microsoft ecosystem. Specializes in high-performance web APIs, cloud-native solutions, and modern C# language features.\n\n## When to Use This Skill\n\n- Building ASP.NET Core APIs (Minimal or Controller-based)\n- Implementing Entity Framework Core data access\n- Creating Blazor web applications (Server\u002FWASM)\n- Optimizing .NET performance with Span\u003CT>, Memory\u003CT>\n- Implementing CQRS with MediatR\n- Setting up authentication\u002Fauthorization\n\n## Core Workflow\n\n1. **Analyze solution** — Review .csproj files, NuGet packages, architecture\n2. **Design models** — Create domain models, DTOs, validation\n3. **Implement** — Write endpoints, repositories, services with DI\n4. **Optimize** — Apply async patterns, caching, performance tuning\n5. **Test** — Write xUnit tests with TestServer; verify 80%+ coverage\n\n> **EF Core checkpoint (after step 3):** Run `dotnet ef migrations add \u003CName>` and review the generated migration file before applying. Confirm no unintended table\u002Fcolumn drops. Roll back with `dotnet ef migrations remove` if needed.\n\n## Reference Guide\n\nLoad detailed guidance based on context:\n\n| Topic | Reference | Load When |\n|-------|-----------|-----------|\n| Modern C# | `references\u002Fmodern-csharp.md` | Records, pattern matching, nullable types |\n| ASP.NET Core | `references\u002Faspnet-core.md` | Minimal APIs, middleware, DI, routing |\n| Entity Framework | `references\u002Fentity-framework.md` | EF Core, migrations, query optimization |\n| Blazor | `references\u002Fblazor.md` | Components, state management, interop |\n| Performance | `references\u002Fperformance.md` | Span\u003CT>, async, memory optimization, AOT |\n\n## Constraints\n\n### MUST DO\n- Enable nullable reference types in all projects\n- Use file-scoped namespaces and primary constructors (C# 12)\n- Apply async\u002Fawait for all I\u002FO operations — always accept and forward `CancellationToken`:\n  ```csharp\n  \u002F\u002F Correct\n  app.MapGet(\"\u002Fitems\u002F{id}\", async (int id, IItemService svc, CancellationToken ct) =>\n      await svc.GetByIdAsync(id, ct) is { } item ? Results.Ok(item) : Results.NotFound());\n  ```\n- Use dependency injection for all services\n- Include XML documentation for public APIs\n- Implement proper error handling with Result pattern:\n  ```csharp\n  public readonly record struct Result\u003CT>(T? Value, string? Error, bool IsSuccess)\n  {\n      public static Result\u003CT> Ok(T value) => new(value, null, true);\n      public static Result\u003CT> Fail(string error) => new(default, error, false);\n  }\n  ```\n- Use strongly-typed configuration with `IOptions\u003CT>`\n\n### MUST NOT DO\n- Use blocking calls (`.Result`, `.Wait()`) in async code:\n  ```csharp\n  \u002F\u002F Wrong — blocks thread and risks deadlock\n  var data = service.GetDataAsync().Result;\n\n  \u002F\u002F Correct\n  var data = await service.GetDataAsync(ct);\n  ```\n- Disable nullable warnings without proper justification\n- Skip cancellation token support in async methods\n- Expose EF Core entities directly in API responses — always map to DTOs\n- Use string-based configuration keys\n- Skip input validation\n- Ignore code analysis warnings\n\n## Output Templates\n\nWhen implementing .NET features, provide:\n1. Domain models and DTOs\n2. API endpoints (Minimal API or controllers)\n3. Repository\u002Fservice implementations\n4. Configuration setup (Program.cs, appsettings.json)\n5. Brief explanation of architectural decisions\n\n## Example: Minimal API Endpoint\n\n```csharp\n\u002F\u002F Program.cs (file-scoped, .NET 8 minimal API)\nvar builder = WebApplication.CreateBuilder(args);\nbuilder.Services.AddScoped\u003CIProductService, ProductService>();\n\nvar app = builder.Build();\n\napp.MapGet(\"\u002Fproducts\u002F{id:int}\", async (\n    int id,\n    IProductService service,\n    CancellationToken ct) =>\n{\n    var result = await service.GetByIdAsync(id, ct);\n    return result.IsSuccess ? Results.Ok(result.Value) : Results.NotFound(result.Error);\n})\n.WithName(\"GetProduct\")\n.Produces\u003CProductDto>()\n.ProducesProblem(404);\n\napp.Run();\n```\n\n## Knowledge Reference\n\nC# 12, .NET 8, ASP.NET Core, Minimal APIs, Blazor (Server\u002FWASM), Entity Framework Core, MediatR, xUnit, Moq, Benchmark.NET, SignalR, gRPC, Azure SDK, Polly, FluentValidation, Serilog\n\n[Documentation](https:\u002F\u002Fjeffallan.github.io\u002Fclaude-skills\u002Fskills\u002Flanguage\u002Fcsharp-developer\u002F)\n",{"name":5,"license":15,"metadata":24,"description":7},{"role":25,"scope":26,"author":27,"domain":28,"version":29,"triggers":30,"output-format":31,"related-skills":32},"specialist","implementation","https:\u002F\u002Fgithub.com\u002FJeffallan","language","1.1.0","C#, .NET, ASP.NET Core, Blazor, Entity Framework, EF Core, Minimal API, MAUI, SignalR","code","api-designer, database-optimizer, devops-engineer","main","8859218955d9504cd18b59e7892100718039d3b4","data\u002Fskills\u002Fjeffallan-claude-skills\u002Fcsharp-developer",1,"https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper","https:\u002F\u002Fgithub.com\u002Fom-scogo","SDE-1 @ Scogo ","2026-07-18 12:22:46",{"source":8,"skillName":5,"commands":42,"prompt":52,"zipAvailable":53},[43,46,49],{"tool":44,"command":45},"npx","npx skills add om-scogo\u002Fskillsh-scraper --skill csharp-developer",{"tool":47,"command":48},"bunx","bunx skills add om-scogo\u002Fskillsh-scraper --skill csharp-developer",{"tool":50,"command":51},"pnpm","pnpm dlx skills add om-scogo\u002Fskillsh-scraper --skill csharp-developer","安装技能，技能地址：https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fjeffallan-claude-skills\u002Fcsharp-developer\u002FSkill.md",true,[55],{"path":56,"resourceType":57,"resourceTypeDesc":58,"sizeBytes":59,"sourceHtmlUrl":60},"metadata.json","REFERENCE","参考文档",464,"https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fjeffallan-claude-skills\u002Fcsharp-developer\u002Fmetadata.json",[62,69,74,81,86,93],{"skillNo":63,"name":64,"nameZh":6,"description":65,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":66,"categories":67,"keywords":68,"publishedAt":19},"01M7D6MC9FAAEV4CMNYX8W7JTG","arxiv-search","Search arXiv physics, math, and computer science preprints using natural language queries. Powered by Valyu semantic search.","https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fyorkeccak-scientific-skills\u002Farxiv-search\u002Fskills\u002Farxiv-search\u002FSKILL.md",[],[],{"skillNo":70,"name":64,"nameZh":6,"description":65,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":71,"categories":72,"keywords":73,"publishedAt":19},"01M7D6M85CKKN87TA98VCQV4H7","https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fyorkeccak-scientific-skills\u002Farxiv-search\u002FSkill.md",[],[],{"skillNo":75,"name":76,"nameZh":6,"description":77,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":78,"categories":79,"keywords":80,"publishedAt":19},"01M7D4ZTCS4DR3CE4JY06X84T2","working-with-legacy-code","Safely change and test untested codebases using Feathers' \"Working Effectively with Legacy Code\". Use when the user mentions \"legacy code\", \"no tests\", \"untested codebase\", \"how do I test this\", \"seams\", \"characterization tests\", \"golden master\", \"sprout method\", \"afraid to change this code\", \"monster method\", \"dependency breaking\", or \"inherited a messy codebase\". Also trigger when changing code without tests safely, getting a class under test when constructors, statics, or singletons block it, adding features to tangled modules, or planning incremental test coverage for an old codebase. Covers the legacy-code change algorithm, seams, characterization tests, sprout\u002Fwrap, and dependency-breaking techniques. For refactoring code that already has tests, see refactoring-patterns. For day-to-day code quality, see clean-code.","https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fwondelai-skills\u002Fworking-with-legacy-code\u002Fworking-with-legacy-code\u002FSKILL.md",[],[],{"skillNo":82,"name":76,"nameZh":6,"description":77,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":83,"categories":84,"keywords":85,"publishedAt":19},"01M7D4ZHZKJD2RSNGAF63V14P4","https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fwondelai-skills\u002Fworking-with-legacy-code\u002FSkill.md",[],[],{"skillNo":87,"name":88,"nameZh":6,"description":89,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":90,"categories":91,"keywords":92,"publishedAt":19},"01M7D4ZB4CJBFW5JE67CPH2QRV","web-typography","Select, pair, and implement typefaces for web projects. Use when the user mentions \"font pairing\", \"which typeface\", \"line height\", \"responsive typography\", \"web font loading\", \"type hierarchy\", \"variable fonts\", \"FOUT\u002FFOIT\", \"typographic scale\", or \"the text is hard to read\". Also trigger when choosing between system fonts and web fonts, optimizing font-loading performance, or designing readable long-form content. Covers readability evaluation, CSS implementation, and performance optimization. For overall UI design systems, see refactoring-ui. For dramatic typographic experiences, see top-design.","https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fwondelai-skills\u002Fweb-typography\u002Fweb-typography\u002FSKILL.md",[],[],{"skillNo":94,"name":88,"nameZh":6,"description":89,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":95,"categories":96,"keywords":97,"publishedAt":19},"01M7D4Z4MVYVY3NMJ18BNV6WNA","https:\u002F\u002Fgithub.com\u002Fom-scogo\u002Fskillsh-scraper\u002Fblob\u002Fmain\u002Fdata\u002Fskills\u002Fwondelai-skills\u002Fweb-typography\u002FSkill.md",[],[]]