[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill-dotnet-maui-essentials-ai":3,"mdc-u2psjj-key":49,"related-org-dotnet-maui-essentials-ai":1077,"related-repo-dotnet-maui-essentials-ai":1240},{"slug":4,"name":4,"fn":5,"description":6,"org":7,"tags":11,"stars":28,"repoUrl":29,"updatedAt":30,"license":31,"forks":32,"topics":33,"repo":44,"sourceUrl":47,"mdContent":48},"maui-essentials-ai","integrate MAUI AI with Apple Intelligence","Adopt `Microsoft.Maui.Essentials.AI` for local\u002Fon-device MAUI AI. USE FOR: Apple Intelligence `AppleIntelligenceChatClient` as `IChatClient`, iOS\u002FmacOS\u002FMac Catalyst 26+ checks, fallback UI, `NLEmbeddingGenerator` semantic search, local `UseFunctionInvocation` tools, privacy\u002Foffline UX. 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USE FOR: Apple Intelligence `AppleIntelligenceChatClient` as `IChatClient`, iOS\u002FmacOS\u002FMac Catalyst 26+ checks, fallback UI, `NLEmbeddingGenerator` semantic search, local `UseFunctionInvocation` tools, privacy\u002Foffline UX. DO NOT USE FOR: source-generated tools, cloud-only Azure\u002FOpenAI, UI debug, or non-MAUI AI.\n---\n\n# MAUI Essentials AI\n\nUse this skill when a MAUI app should use on-device AI through\n`Microsoft.Maui.Essentials.AI` and `Microsoft.Extensions.AI` abstractions.\n\n## Response Checklist\n\n- Mention the package and primary types explicitly:\n  `Microsoft.Maui.Essentials.AI`, `AppleIntelligenceChatClient`,\n  `NLEmbeddingGenerator`.\n- Keep platform support explicit (Apple chat support is iOS\u002FmacOS\u002FMac Catalyst\n  26+; embeddings have broader Apple OS coverage).\n- For app tools, show `UseFunctionInvocation` and route source-generated tool\n  definitions to `maui-ai-tool-bindings` when appropriate.\n\n## Platform Support\n\nChat support:\n\n| Platform | Status |\n| --- | --- |\n| iOS 26+ | Apple Intelligence \u002F Foundation Models |\n| Mac Catalyst 26+ | Apple Intelligence |\n| macOS 26+ | Apple Intelligence |\n| Android | Coming soon |\n| Windows | Coming soon |\n\nEmbedding support:\n\n| Platform | Status |\n| --- | --- |\n| iOS 13+ | NaturalLanguage embeddings |\n| Mac Catalyst 13.1+ | NaturalLanguage embeddings |\n| macOS 10.15+ | NaturalLanguage embeddings |\n| Android | Not supported |\n| Windows | Not supported |\n\nVersion numbers for Apple Intelligence support reflect currently announced OS\nversions; verify final released platform versions before shipping.\n\nDesign fallback behavior for unsupported platforms. Do not silently route private\ndata to a cloud model unless the user explicitly wants a cloud fallback.\n\n## Install and Register\n\n```bash\ndotnet add package Microsoft.Maui.Essentials.AI --prerelease\n```\n\n```csharp\nusing Microsoft.Extensions.AI;\nusing Microsoft.Extensions.DependencyInjection;\nusing Microsoft.Maui.Essentials.AI;\n\n#if IOS || MACCATALYST || MACOS\nbuilder.Services.AddSingleton\u003CNLEmbeddingGenerator>();\nbuilder.Services.AddSingleton\u003CIEmbeddingGenerator\u003Cstring, Embedding\u003Cfloat>>>(sp =>\n    sp.GetRequiredService\u003CNLEmbeddingGenerator>());\n\nif (OperatingSystem.IsIOSVersionAtLeast(26) ||\n    OperatingSystem.IsMacCatalystVersionAtLeast(26) ||\n    OperatingSystem.IsMacOSVersionAtLeast(26))\n{\n    builder.Services.AddSingleton\u003CIChatClient>(new AppleIntelligenceChatClient());\n}\nelse\n{\n    \u002F\u002F Leave IChatClient unregistered and check availability before use,\n    \u002F\u002F or register an app-specific unavailable implementation.\n}\n#endif\n```\n\nRegister platform-specific implementations conditionally if the app targets\nunsupported platforms too. If the app's minimum Apple OS target is below 26,\nguard chat registration with runtime OS checks or register an app-specific\nunavailable implementation for older OS versions. For MAUI Labs AppKit\n(`MACOS`), verify the Essentials.AI integration against the target package\nbefore shipping.\n\n## Chat Workflow\n\n1. Inject `IChatClient` into a view model or service, not directly into a page\n   unless the app architecture already does that.\n2. Pass cancellation tokens from commands and lifecycle boundaries.\n3. Use streaming responses for interactive UI:\n\n   ```csharp\n   await foreach (var update in _chat.GetStreamingResponseAsync(messages, cancellationToken))\n   {\n       MainThread.BeginInvokeOnMainThread(() => ResponseText += update.Text);\n   }\n   ```\n\n4. Keep conversation state in an app service so it survives page recreation.\n5. Surface model availability and failure states in the UI.\n\nIf your view model framework already marshals property changes to the UI thread,\nuse that convention. Otherwise, dispatch UI-bound property updates explicitly.\n\n## Embeddings and Semantic Search\n\nUse `NLEmbeddingGenerator` for local semantic search over app-owned content. The\ndefault constructor uses Apple's English sentence embedding; pass a\n`NaturalLanguage.NLLanguage` or an existing `NaturalLanguage.NLEmbedding` when\nthe app needs a different supported language or embedding:\n\n```csharp\n#if IOS || MACCATALYST || MACOS\nvar generator = new NLEmbeddingGenerator();\nvar embeddings = await generator.GenerateAsync(\n    [\"sunset beach\", \"mountain hiking\"],\n    cancellationToken);\n#endif\n```\n\nRecommended shape:\n\n- chunk app content into small searchable records;\n- generate embeddings at ingest\u002Fupdate time;\n- store vector plus metadata locally;\n- compare query embeddings with cosine similarity;\n- return source snippets and IDs so the UI can show grounded results.\n\nAvoid regenerating embeddings for the full corpus on every search.\n\n## Tool Use\n\nEssentials AI returns `Microsoft.Extensions.AI` clients, so normal tool calling\npatterns apply:\n\n```csharp\nvar innerClient = serviceProvider.GetService\u003CIChatClient>();\nif (innerClient is null)\n{\n    \u002F\u002F Chat is unavailable on this platform\u002FOS version; hide or disable the feature.\n    return;\n}\n\nvar appTools = YourAppTools.Default.Tools; \u002F\u002F Define with [AIToolSource]; see maui-ai-tool-bindings.\n\nvar client = innerClient.AsBuilder()\n    .UseFunctionInvocation()\n    .ConfigureOptions(options =>\n    {\n        options.Tools ??= [];\n        foreach (var tool in appTools)\n            options.Tools.Add(tool);\n    })\n    .Build(serviceProvider);\n```\n\nUse `maui-ai-tool-bindings` when tools should be generated from app methods with\n`[ExportAIFunction]`, DI parameter binding, or AOT-friendly definitions.\n\n## Privacy and UX Guardrails\n\n- Explain that AI runs on device for supported Apple platforms.\n- Ask before adding a cloud fallback.\n- Keep prompts, embeddings, and tool outputs within the app's data handling\n  policy.\n- Show unsupported-device and model-unavailable states.\n- Do not block the UI thread while generating responses or embeddings.\n- Use approval-required tools for actions that mutate data, send messages,\n  purchase, delete, or navigate unexpectedly.\n\n## Validation Checklist\n\n- The app target platform supports the requested AI capability or has an\n  explicit fallback.\n- AI clients are registered in DI and consumed from services\u002Fview models.\n- Streaming, cancellation, and error states are handled.\n- Semantic search stores metadata with embeddings and avoids full re-ingest per\n  query.\n- Tool use is scoped and user-approved for sensitive actions.\n",{"data":50,"body":51},{"name":4,"description":6},{"type":52,"children":53},"root",[54,62,85,92,151,157,162,253,258,338,343,348,354,397,591,604,610,684,689,695,723,776,781,809,814,820,832,979,998,1004,1037,1043,1071],{"type":55,"tag":56,"props":57,"children":58},"element","h1",{"id":4},[59],{"type":60,"value":61},"text","MAUI Essentials AI",{"type":55,"tag":63,"props":64,"children":65},"p",{},[66,68,75,77,83],{"type":60,"value":67},"Use this skill when a MAUI app should use on-device AI through\n",{"type":55,"tag":69,"props":70,"children":72},"code",{"className":71},[],[73],{"type":60,"value":74},"Microsoft.Maui.Essentials.AI",{"type":60,"value":76}," and ",{"type":55,"tag":69,"props":78,"children":80},{"className":79},[],[81],{"type":60,"value":82},"Microsoft.Extensions.AI",{"type":60,"value":84}," abstractions.",{"type":55,"tag":86,"props":87,"children":89},"h2",{"id":88},"response-checklist",[90],{"type":60,"value":91},"Response Checklist",{"type":55,"tag":93,"props":94,"children":95},"ul",{},[96,125,130],{"type":55,"tag":97,"props":98,"children":99},"li",{},[100,102,107,109,115,117,123],{"type":60,"value":101},"Mention the package and primary types explicitly:\n",{"type":55,"tag":69,"props":103,"children":105},{"className":104},[],[106],{"type":60,"value":74},{"type":60,"value":108},", ",{"type":55,"tag":69,"props":110,"children":112},{"className":111},[],[113],{"type":60,"value":114},"AppleIntelligenceChatClient",{"type":60,"value":116},",\n",{"type":55,"tag":69,"props":118,"children":120},{"className":119},[],[121],{"type":60,"value":122},"NLEmbeddingGenerator",{"type":60,"value":124},".",{"type":55,"tag":97,"props":126,"children":127},{},[128],{"type":60,"value":129},"Keep platform support explicit (Apple chat support is iOS\u002FmacOS\u002FMac Catalyst\n26+; 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unavailable implementation.\n}\n#endif\n","csharp",[403],{"type":55,"tag":69,"props":404,"children":405},{"__ignoreMap":360},[406,414,423,432,442,451,460,469,478,486,495,504,513,522,531,540,549,557,566,575,583],{"type":55,"tag":366,"props":407,"children":408},{"class":368,"line":369},[409],{"type":55,"tag":366,"props":410,"children":411},{},[412],{"type":60,"value":413},"using Microsoft.Extensions.AI;\n",{"type":55,"tag":366,"props":415,"children":417},{"class":368,"line":416},2,[418],{"type":55,"tag":366,"props":419,"children":420},{},[421],{"type":60,"value":422},"using Microsoft.Extensions.DependencyInjection;\n",{"type":55,"tag":366,"props":424,"children":426},{"class":368,"line":425},3,[427],{"type":55,"tag":366,"props":428,"children":429},{},[430],{"type":60,"value":431},"using 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For MAUI Labs AppKit\n(",{"type":55,"tag":69,"props":597,"children":599},{"className":598},[],[600],{"type":60,"value":601},"MACOS",{"type":60,"value":603},"), verify the Essentials.AI integration against the target package\nbefore shipping.",{"type":55,"tag":86,"props":605,"children":607},{"id":606},"chat-workflow",[608],{"type":60,"value":609},"Chat Workflow",{"type":55,"tag":611,"props":612,"children":613},"ol",{},[614,627,632,674,679],{"type":55,"tag":97,"props":615,"children":616},{},[617,619,625],{"type":60,"value":618},"Inject ",{"type":55,"tag":69,"props":620,"children":622},{"className":621},[],[623],{"type":60,"value":624},"IChatClient",{"type":60,"value":626}," into a view model or service, not directly into a page\nunless the app architecture already does that.",{"type":55,"tag":97,"props":628,"children":629},{},[630],{"type":60,"value":631},"Pass cancellation tokens from commands and lifecycle boundaries.",{"type":55,"tag":97,"props":633,"children":634},{},[635,637],{"type":60,"value":636},"Use streaming responses for interactive UI:",{"type":55,"tag":355,"props":638,"children":640},{"className":399,"code":639,"language":401,"meta":360,"style":360},"await foreach (var update in _chat.GetStreamingResponseAsync(messages, cancellationToken))\n{\n    MainThread.BeginInvokeOnMainThread(() => ResponseText += update.Text);\n}\n",[641],{"type":55,"tag":69,"props":642,"children":643},{"__ignoreMap":360},[644,652,659,667],{"type":55,"tag":366,"props":645,"children":646},{"class":368,"line":369},[647],{"type":55,"tag":366,"props":648,"children":649},{},[650],{"type":60,"value":651},"await foreach (var update in _chat.GetStreamingResponseAsync(messages, cancellationToken))\n",{"type":55,"tag":366,"props":653,"children":654},{"class":368,"line":416},[655],{"type":55,"tag":366,"props":656,"children":657},{},[658],{"type":60,"value":521},{"type":55,"tag":366,"props":660,"children":661},{"class":368,"line":425},[662],{"type":55,"tag":366,"props":663,"children":664},{},[665],{"type":60,"value":666},"    MainThread.BeginInvokeOnMainThread(() => ResponseText += update.Text);\n",{"type":55,"tag":366,"props":668,"children":669},{"class":368,"line":434},[670],{"type":55,"tag":366,"props":671,"children":672},{},[673],{"type":60,"value":539},{"type":55,"tag":97,"props":675,"children":676},{},[677],{"type":60,"value":678},"Keep conversation state in an app service so it survives page recreation.",{"type":55,"tag":97,"props":680,"children":681},{},[682],{"type":60,"value":683},"Surface model availability and failure states in the UI.",{"type":55,"tag":63,"props":685,"children":686},{},[687],{"type":60,"value":688},"If your view model framework already marshals property changes to the UI thread,\nuse that convention. Otherwise, dispatch UI-bound property updates explicitly.",{"type":55,"tag":86,"props":690,"children":692},{"id":691},"embeddings-and-semantic-search",[693],{"type":60,"value":694},"Embeddings and Semantic Search",{"type":55,"tag":63,"props":696,"children":697},{},[698,700,705,707,713,715,721],{"type":60,"value":699},"Use ",{"type":55,"tag":69,"props":701,"children":703},{"className":702},[],[704],{"type":60,"value":122},{"type":60,"value":706}," for local semantic search over app-owned content. The\ndefault constructor uses Apple's English sentence embedding; pass a\n",{"type":55,"tag":69,"props":708,"children":710},{"className":709},[],[711],{"type":60,"value":712},"NaturalLanguage.NLLanguage",{"type":60,"value":714}," or an existing ",{"type":55,"tag":69,"props":716,"children":718},{"className":717},[],[719],{"type":60,"value":720},"NaturalLanguage.NLEmbedding",{"type":60,"value":722}," when\nthe app needs a different supported language or embedding:",{"type":55,"tag":355,"props":724,"children":726},{"className":399,"code":725,"language":401,"meta":360,"style":360},"#if IOS || MACCATALYST || MACOS\nvar generator = new NLEmbeddingGenerator();\nvar embeddings = await generator.GenerateAsync(\n    [\"sunset beach\", \"mountain hiking\"],\n    cancellationToken);\n#endif\n",[727],{"type":55,"tag":69,"props":728,"children":729},{"__ignoreMap":360},[730,737,745,753,761,769],{"type":55,"tag":366,"props":731,"children":732},{"class":368,"line":369},[733],{"type":55,"tag":366,"props":734,"children":735},{},[736],{"type":60,"value":450},{"type":55,"tag":366,"props":738,"children":739},{"class":368,"line":416},[740],{"type":55,"tag":366,"props":741,"children":742},{},[743],{"type":60,"value":744},"var generator = new NLEmbeddingGenerator();\n",{"type":55,"tag":366,"props":746,"children":747},{"class":368,"line":425},[748],{"type":55,"tag":366,"props":749,"children":750},{},[751],{"type":60,"value":752},"var embeddings = await generator.GenerateAsync(\n",{"type":55,"tag":366,"props":754,"children":755},{"class":368,"line":434},[756],{"type":55,"tag":366,"props":757,"children":758},{},[759],{"type":60,"value":760},"    [\"sunset beach\", \"mountain 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serviceProvider.GetService\u003CIChatClient>();\nif (innerClient is null)\n{\n    \u002F\u002F Chat is unavailable on this platform\u002FOS version; hide or disable the feature.\n    return;\n}\n\nvar appTools = YourAppTools.Default.Tools; \u002F\u002F Define with [AIToolSource]; see maui-ai-tool-bindings.\n\nvar client = innerClient.AsBuilder()\n    .UseFunctionInvocation()\n    .ConfigureOptions(options =>\n    {\n        options.Tools ??= [];\n        foreach (var tool in appTools)\n            options.Tools.Add(tool);\n    })\n    .Build(serviceProvider);\n",[836],{"type":55,"tag":69,"props":837,"children":838},{"__ignoreMap":360},[839,847,855,862,870,878,885,892,900,907,915,923,931,939,947,955,963,971],{"type":55,"tag":366,"props":840,"children":841},{"class":368,"line":369},[842],{"type":55,"tag":366,"props":843,"children":844},{},[845],{"type":60,"value":846},"var innerClient = 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with\n",{"type":55,"tag":69,"props":991,"children":993},{"className":992},[],[994],{"type":60,"value":995},"[ExportAIFunction]",{"type":60,"value":997},", DI parameter binding, or AOT-friendly definitions.",{"type":55,"tag":86,"props":999,"children":1001},{"id":1000},"privacy-and-ux-guardrails",[1002],{"type":60,"value":1003},"Privacy and UX Guardrails",{"type":55,"tag":93,"props":1005,"children":1006},{},[1007,1012,1017,1022,1027,1032],{"type":55,"tag":97,"props":1008,"children":1009},{},[1010],{"type":60,"value":1011},"Explain that AI runs on device for supported Apple platforms.",{"type":55,"tag":97,"props":1013,"children":1014},{},[1015],{"type":60,"value":1016},"Ask before adding a cloud fallback.",{"type":55,"tag":97,"props":1018,"children":1019},{},[1020],{"type":60,"value":1021},"Keep prompts, embeddings, and tool outputs within the app's data handling\npolicy.",{"type":55,"tag":97,"props":1023,"children":1024},{},[1025],{"type":60,"value":1026},"Show unsupported-device and 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var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}",{"items":1078,"total":1239},[1079,1097,1114,1126,1140,1154,1173,1183,1195,1205,1218,1229],{"slug":1080,"name":1080,"fn":1081,"description":1082,"org":1083,"tags":1084,"stars":1094,"repoUrl":1095,"updatedAt":1096},"multithreaded-task-migration","migrate MSBuild tasks to multithreaded mode","Guide for migrating MSBuild tasks to multithreaded mode support, including compatibility red-team review. Use this when converting tasks to thread-safe versions, implementing IMultiThreadableTask, adding TaskEnvironment support, or auditing migrations for behavioral compatibility.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1085,1088,1091],{"name":1086,"slug":1087,"type":15},".NET","net",{"name":1089,"slug":1090,"type":15},"Engineering","engineering",{"name":1092,"slug":1093,"type":15},"Performance","performance",5535,"https:\u002F\u002Fgithub.com\u002Fdotnet\u002Fmsbuild","2026-07-22T05:37:33.965588",{"slug":1098,"name":1098,"fn":1099,"description":1100,"org":1101,"tags":1102,"stars":1111,"repoUrl":1112,"updatedAt":1113},"analyzing-dotnet-performance","analyze .NET code for performance anti-patterns","Scans .NET code for ~50 performance anti-patterns across async, memory, strings, collections, LINQ, regex, serialization, and I\u002FO with tiered severity classification. Use when analyzing .NET code for optimization opportunities, reviewing hot paths, or auditing allocation-heavy patterns.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1103,1104,1107,1110],{"name":1086,"slug":1087,"type":15},{"name":1105,"slug":1106,"type":15},"Code Analysis","code-analysis",{"name":1108,"slug":1109,"type":15},"Debugging","debugging",{"name":1092,"slug":1093,"type":15},4576,"https:\u002F\u002Fgithub.com\u002Fdotnet\u002Fskills","2026-07-12T08:23:25.400375",{"slug":1115,"name":1115,"fn":1116,"description":1117,"org":1118,"tags":1119,"stars":1111,"repoUrl":1112,"updatedAt":1125},"android-tombstone-symbolication","symbolicate .NET runtime frames in Android tombstones","Symbolicate the .NET runtime frames in an Android tombstone file. Extracts BuildIds and PC offsets from the native backtrace, downloads debug symbols from the Microsoft symbol server, and runs llvm-symbolizer to produce function names with source file and line numbers. USE FOR triaging a .NET MAUI or Mono Android app crash from a tombstone, resolving native backtrace frames in libmonosgen-2.0.so or libcoreclr.so to .NET runtime source code, or investigating SIGABRT, SIGSEGV, or other native signals originating from the .NET runtime on Android. DO NOT USE FOR pure Java\u002FKotlin crashes, managed .NET exceptions that are already captured in logcat, or iOS crash logs. INVOKES Symbolicate-Tombstone.ps1 script, llvm-symbolizer, Microsoft symbol server.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1120,1121,1122,1123],{"name":1086,"slug":1087,"type":15},{"name":235,"slug":35,"type":15},{"name":1108,"slug":1109,"type":15},{"name":1124,"slug":39,"type":15},"Microsoft","2026-07-12T08:23:21.595572",{"slug":1127,"name":1127,"fn":1128,"description":1129,"org":1130,"tags":1131,"stars":1111,"repoUrl":1112,"updatedAt":1139},"apple-crash-symbolication","symbolicate .NET runtime frames in crash logs","Symbolicate .NET runtime frames in Apple platform .ips crash logs (iOS, tvOS, Mac Catalyst, macOS). Extracts UUIDs and addresses from the native backtrace, locates dSYM debug symbols, and runs atos to produce function names with source file and line numbers. Automatically downloads .dwarf symbols from the Microsoft symbol server using Mach-O UUIDs. USE FOR triaging a .NET MAUI or Mono app crash from an .ips file on any Apple platform, resolving native backtrace frames in libcoreclr or libmonosgen-2.0 to .NET runtime source code, retrieving .ips crash logs from a connected iOS device or iPhone, or investigating EXC_CRASH, EXC_BAD_ACCESS, SIGABRT, or SIGSEGV originating from the .NET runtime. DO NOT USE FOR pure Swift\u002FObjective-C crashes with no .NET components, or Android tombstone files. INVOKES Symbolicate-Crash.ps1 script, atos, dwarfdump, idevicecrashreport.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1132,1133,1134,1135,1136],{"name":1086,"slug":1087,"type":15},{"name":1108,"slug":1109,"type":15},{"name":17,"slug":18,"type":15},{"name":20,"slug":21,"type":15},{"name":1137,"slug":1138,"type":15},"Observability","observability","2026-07-12T08:23:20.369986",{"slug":1141,"name":1141,"fn":1142,"description":1143,"org":1144,"tags":1145,"stars":1111,"repoUrl":1112,"updatedAt":1153},"assertion-quality","evaluate assertion quality in test suites","Analyzes the variety and depth of assertions across test suites in any language. Use when the user asks to evaluate assertion quality, find shallow tests, identify assertion-free tests (no assertions or only trivial ones like Assert.IsNotNull \u002F toBeTruthy()), flag self-referential or tautological assertions, measure assertion diversity, or audit whether tests verify different facets of behavior. Polyglot: .NET, Python, TS\u002FJS, Java, Go, Ruby, Rust, Swift, Kotlin, PowerShell, C++. DO NOT USE FOR: writing new tests (use code-testing-agent \u002F writing-mstest-tests), mutation reasoning about whether tests would catch a bug (use test-gap-analysis), or a general severity-ranked anti-pattern audit (use test-anti-patterns), fixing or rewriting assertions, or writing, fixing, or modernizing MSTest tests, assertions, or attributes (use writing-mstest-tests).",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1146,1147,1150],{"name":1105,"slug":1106,"type":15},{"name":1148,"slug":1149,"type":15},"QA","qa",{"name":1151,"slug":1152,"type":15},"Testing","testing","2026-07-12T08:23:51.277743",{"slug":1155,"name":1155,"fn":1156,"description":1157,"org":1158,"tags":1159,"stars":1111,"repoUrl":1112,"updatedAt":1172},"author-component","create and review Blazor components","Create or review Blazor components (.razor files) with correct architecture. USE FOR: writing new Blazor components that do NOT involve JavaScript interop, implementing parameters and EventCallback, RenderFragment slots, component lifecycle (OnInitializedAsync, OnParametersSet), async patterns, IAsyncDisposable, CancellationToken, CSS isolation, code-behind. DO NOT USE FOR: creating new projects (use create-blazor-project), JavaScript interop or calling browser APIs from Blazor (use use-js-interop), forms and validation (use collect-user-input), prerendering issues (use support-prerendering), HTTP data fetching patterns (use fetch-and-send-data), coordinating state between unrelated components (use coordinate-components).\n",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1160,1161,1164,1166,1169],{"name":1086,"slug":1087,"type":15},{"name":1162,"slug":1163,"type":15},"Blazor","blazor",{"name":1165,"slug":401,"type":15},"C#",{"name":1167,"slug":1168,"type":15},"UI Components","ui-components",{"name":1170,"slug":1171,"type":15},"Web Development","web-development","2026-07-15T06:03:29.216359",{"slug":1174,"name":1174,"fn":1175,"description":1176,"org":1177,"tags":1178,"stars":1111,"repoUrl":1112,"updatedAt":1182},"binlog-failure-analysis","analyze MSBuild binary logs","Analyze MSBuild binary logs to diagnose build failures. USE FOR: build errors that are unclear from console output, diagnosing cascading failures across multi-project builds, tracing MSBuild target execution order, and generally any MSBuild build issues. Requires an existing .binlog file. DO NOT USE FOR: generating binlogs (use binlog-generation), non-MSBuild build systems.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1179,1180,1181],{"name":1105,"slug":1106,"type":15},{"name":1108,"slug":1109,"type":15},{"name":1124,"slug":39,"type":15},"2026-07-12T08:21:34.637923",{"slug":1184,"name":1184,"fn":1185,"description":1186,"org":1187,"tags":1188,"stars":1111,"repoUrl":1112,"updatedAt":1194},"binlog-generation","generate MSBuild binary logs for diagnostics","Generate MSBuild binary logs (binlogs) for build diagnostics and analysis. USE FOR: adding \u002Fbl:{} to any dotnet build, test, pack, publish, or restore command to capture a full build execution trace, prerequisite for binlog-failure-analysis and build-perf-diagnostics skills, enabling post-build investigation of errors or performance. Requires MSBuild 17.8+ \u002F .NET 8 SDK+ for {} placeholder; PowerShell needs -bl:{{}}. DO NOT USE FOR: non-MSBuild build systems (npm, Maven, CMake), analyzing an existing binlog (use binlog-failure-analysis instead).",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1189,1192,1193],{"name":1190,"slug":1191,"type":15},"Build","build",{"name":1108,"slug":1109,"type":15},{"name":1089,"slug":1090,"type":15},"2026-07-19T05:38:19.340791",{"slug":1196,"name":1196,"fn":1197,"description":1198,"org":1199,"tags":1200,"stars":1111,"repoUrl":1112,"updatedAt":1204},"build-parallelism","optimize MSBuild build parallelism","Diagnose and fix under-parallelized MSBuild builds. USE WHEN a multi-project solution build is slower than expected, doesn't speed up when you add cores, pegs a single core while others idle, or you want to know why `-m` isn't helping. Note: `\u002Fmaxcpucount` default is 1 (sequential) — always pass `-m` for parallel builds. Covers finding the critical path (longest serial ProjectReference chain), graph build (`\u002Fgraph`), BuildInParallel, and solution filters (`.slnf`). DO NOT USE FOR: single-project builds, incremental issues (use incremental-build), compilation slowness inside one project (use build-perf-diagnostics), non-MSBuild build systems.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1201,1202,1203],{"name":1086,"slug":1087,"type":15},{"name":1089,"slug":1090,"type":15},{"name":1092,"slug":1093,"type":15},"2026-07-19T05:38:18.364937",{"slug":1206,"name":1206,"fn":1207,"description":1208,"org":1209,"tags":1210,"stars":1111,"repoUrl":1112,"updatedAt":1217},"build-perf-baseline","establish and optimize build performance baselines","Establish build performance baselines and apply systematic optimization techniques. USE FOR: diagnosing slow builds, establishing before\u002Fafter measurements (cold, warm, no-op scenarios), applying optimization strategies like MSBuild Server, static graph builds, artifacts output, and dependency graph trimming. Start here before diving into build-perf-diagnostics, incremental-build, or build-parallelism. DO NOT USE FOR: non-MSBuild build systems, detailed bottleneck analysis (use build-perf-diagnostics after baselining).",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1211,1212,1215,1216],{"name":1089,"slug":1090,"type":15},{"name":1213,"slug":1214,"type":15},"Monitoring","monitoring",{"name":1092,"slug":1093,"type":15},{"name":1151,"slug":1152,"type":15},"2026-07-12T08:21:35.865649",{"slug":1219,"name":1219,"fn":1220,"description":1221,"org":1222,"tags":1223,"stars":1111,"repoUrl":1112,"updatedAt":1228},"build-perf-diagnostics","diagnose MSBuild build performance bottlenecks","Diagnose MSBuild build performance bottlenecks using binary log analysis. 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\u002FTask 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.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1224,1225,1226,1227],{"name":1086,"slug":1087,"type":15},{"name":1108,"slug":1109,"type":15},{"name":1089,"slug":1090,"type":15},{"name":1092,"slug":1093,"type":15},"2026-07-12T08:21:40.961722",{"slug":1230,"name":1230,"fn":1231,"description":1232,"org":1233,"tags":1234,"stars":1111,"repoUrl":1112,"updatedAt":1238},"check-bin-obj-clash","detect MSBuild output path conflicts","Detects MSBuild projects with conflicting OutputPath or IntermediateOutputPath. USE FOR: builds failing with 'Cannot create a file when that file already exists', 'The process cannot access the file because it is being used by another process', intermittent build failures that succeed on retry, or missing\u002Foverwritten outputs in multi-project or multi-targeting builds where bin\u002Fobj (or project.assets.json) collide. Common causes: shared OutputPath, missing AppendTargetFrameworkToOutputPath, extra global properties (e.g. PublishReadyToRun), or SetTargetFramework on a ProjectReference to a single-targeting project. DO NOT USE FOR: file access errors unrelated to MSBuild (OS-level locking), single-project single-TFM builds, non-MSBuild build systems.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1235,1236,1237],{"name":1108,"slug":1109,"type":15},{"name":1089,"slug":1090,"type":15},{"name":1148,"slug":1149,"type":15},"2026-07-19T05:38:14.336279",144,{"items":1241,"total":1340},[1242,1259,1272,1284,1297,1313,1329],{"slug":1243,"name":1243,"fn":1244,"description":1245,"org":1246,"tags":1247,"stars":28,"repoUrl":29,"updatedAt":1258},"android-slim-bindings","create Android slim bindings for .NET","Create Android slim bindings for MAUI\u002F.NET Android. USE FOR: slim Android binding, Kotlin\u002FJava wrappers, build.gradle.kts, Maven, AAR\u002FJAR, AndroidMavenLibrary, AndroidLibrary, @JvmStatic, XA4241\u002FXA4242, Xamarin.AndroidX\u002FKotlin NuGets. DO NOT USE FOR: iOS\u002FmacOS bindings, general MAUI apps, or NuGet packaging.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1248,1249,1250,1253,1256],{"name":1086,"slug":1087,"type":15},{"name":235,"slug":35,"type":15},{"name":1251,"slug":1252,"type":15},"Java","java",{"name":1254,"slug":1255,"type":15},"Kotlin","kotlin",{"name":1257,"slug":40,"type":15},"Mobile","2026-07-12T08:22:54.006105",{"slug":1260,"name":1260,"fn":1261,"description":1262,"org":1263,"tags":1264,"stars":28,"repoUrl":29,"updatedAt":1271},"devflow-automation","automate .NET MAUI app state","Automate MAUI app state through DevFlow Actions. USE FOR: `[DevFlowAction]` shortcuts, login, seed data, deep screens. DO NOT USE FOR: arbitrary methods, DI internals, UI MCP tools, connectivity, or build\u002Fdeploy issues.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1265,1266,1269,1270],{"name":1086,"slug":1087,"type":15},{"name":1267,"slug":1268,"type":15},"Automation","automation",{"name":13,"slug":14,"type":15},{"name":1257,"slug":40,"type":15},"2026-07-12T08:22:56.616564",{"slug":1273,"name":1273,"fn":1274,"description":1275,"org":1276,"tags":1277,"stars":28,"repoUrl":29,"updatedAt":1283},"devflow-connect","diagnose DevFlow agent connectivity issues","Diagnose DevFlow agent connectivity. USE FOR: `maui devflow` connection failures, agent not found, ports, adb forwarding, broker. DO NOT USE FOR: build failures, setup, visual tree, or Blazor CDP.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1278,1279,1280],{"name":1108,"slug":1109,"type":15},{"name":13,"slug":14,"type":15},{"name":1281,"slug":1282,"type":15},"Networking","networking","2026-07-12T08:22:48.847431",{"slug":1285,"name":1285,"fn":1286,"description":1287,"org":1288,"tags":1289,"stars":28,"repoUrl":29,"updatedAt":1296},"dotnet-workload-info","discover MAUI workload metadata","Discover MAUI workload metadata from live NuGet APIs. USE FOR: workload manifest lookup, WorkloadDependencies.json, v3-flatcontainer, CLI-to-NuGet version conversion, Xcode\u002FJDK\u002FAndroid SDK requirements, CI sdkmanager packages, `packageid:Microsoft.Maui.Controls`. DO NOT USE FOR: installing workloads, build debugging, or app version edits.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1290,1291,1294,1295],{"name":1165,"slug":401,"type":15},{"name":1292,"slug":1293,"type":15},"CLI","cli",{"name":1089,"slug":1090,"type":15},{"name":13,"slug":14,"type":15},"2026-07-12T08:22:46.318953",{"slug":1298,"name":1298,"fn":1299,"description":1300,"org":1301,"tags":1302,"stars":28,"repoUrl":29,"updatedAt":1312},"ios-slim-bindings","create iOS slim bindings for MAUI","Create iOS slim bindings for MAUI. USE FOR: slim iOS binding, Native Library Interop, Swift\u002FObjective-C wrappers, XcodeGen project.yml, Podfile, CocoaPods static linking, BUILD_LIBRARY_FOR_DISTRIBUTION, XcodeProject MSBuild, `@objc`\u002F`[Export]` selector crashes, async completion handlers. DO NOT USE FOR: Android bindings, general MAUI apps, or NuGet packaging.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1303,1304,1305,1306,1309],{"name":1086,"slug":1087,"type":15},{"name":17,"slug":18,"type":15},{"name":13,"slug":14,"type":15},{"name":1307,"slug":1308,"type":15},"Swift","swift",{"name":1310,"slug":1311,"type":15},"Xcode","xcode","2026-07-12T08:22:50.128667",{"slug":1314,"name":1314,"fn":1315,"description":1316,"org":1317,"tags":1318,"stars":28,"repoUrl":29,"updatedAt":1328},"maui-accessibility","implement accessibility in .NET MAUI apps","Make .NET MAUI apps accessible with semantic properties, screen reader labels\u002Fhints, heading levels, focus, announcements, AutomationProperties, touch targets, and platform checks. USE FOR: accessibility audits, WCAG UI fixes, TalkBack\u002FVoiceOver\u002FNarrator behavior, SemanticProperties.Description\u002FHint\u002FHeadingLevel, SemanticScreenReader.Announce, SetSemanticFocus, avoiding redundant Label metadata, hiding decorative content with IsInAccessibleTree=false, and CollectionView row semantics. DO NOT USE FOR: general layout, UI automation only, or performance tuning.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1319,1320,1323,1324,1325],{"name":1086,"slug":1087,"type":15},{"name":1321,"slug":1322,"type":15},"Accessibility","accessibility",{"name":13,"slug":14,"type":15},{"name":1257,"slug":40,"type":15},{"name":1326,"slug":1327,"type":15},"WCAG","wcag","2026-07-12T08:22:17.823583",{"slug":1330,"name":1330,"fn":1331,"description":1332,"org":1333,"tags":1334,"stars":28,"repoUrl":29,"updatedAt":1339},"maui-ai-debugging","debug .NET MAUI application issues","Legacy DevFlow debug skill. USE FOR: `maui-ai-debugging`, `maui devflow`, screenshots, visual tree, Blazor CDP, simulator\u002Femulator debugging. DO NOT USE FOR: setup, desktop automation, AppleScript, host `xdotool`.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[1335,1336,1337,1338],{"name":1086,"slug":1087,"type":15},{"name":1108,"slug":1109,"type":15},{"name":13,"slug":14,"type":15},{"name":1257,"slug":40,"type":15},"2026-07-12T08:22:52.634889",32]