[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill-dotnet-resolve-project-references":3,"mdc--2c6i40-key":37,"related-org-dotnet-resolve-project-references":547,"related-repo-dotnet-resolve-project-references":706},{"slug":4,"name":4,"fn":5,"description":6,"org":7,"tags":11,"stars":25,"repoUrl":26,"updatedAt":27,"license":28,"forks":29,"topics":30,"repo":32,"sourceUrl":35,"mdContent":36},"resolve-project-references","optimize MSBuild project reference performance","Guide for interpreting ResolveProjectReferences time in MSBuild performance summaries. Activate when ResolveProjectReferences appears as the most expensive target and developers are trying to optimize it directly. Explains that the reported time includes wait time for dependent project builds and is misleading. Guides users to focus on task self-time instead. 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Activate when ResolveProjectReferences appears as the most expensive target and developers are trying to optimize it directly. Explains that the reported time includes wait time for dependent project builds and is misleading. Guides users to focus on task self-time instead. Do not activate for general build performance -- use build-perf-diagnostics instead.\"\nlicense: MIT\n---\n\n# Misleading ResolveProjectReferences Time\n\nPrevent misguided optimization of `ResolveProjectReferences` by explaining that its reported time is wall-clock wait time, not CPU work.\n\n## When to Use\n\n- `ResolveProjectReferences` appears as the most expensive target in the Target Performance Summary\n- A developer is trying to optimize `ResolveProjectReferences` directly\n- Build performance analysis shows a single target consuming 50-80% of total build time\n\n## When Not to Use\n\n- General build performance optimization (use `build-perf-diagnostics` instead)\n- The bottleneck is clearly a different target (e.g., `Csc`, `ResolveAssemblyReference`)\n- The user has not yet captured a binlog or performance summary\n\n## Inputs\n\n| Input | Required | Description |\n|-------|----------|-------------|\n| Build log or binlog | Yes | A diagnostic build log or binlog containing the Target Performance Summary |\n\n## Workflow\n\n### Step 1: Confirm the misleading symptom\n\nVerify that `ResolveProjectReferences` appears as the top target in the **Target** Performance Summary. This is the misleading metric.\n\n### Step 2: Explain why it is misleading\n\nThe reported time includes **waiting for dependent projects to build** while the MSBuild node is yielded (see dotnet\u002Fmsbuild#3135). During this wait, the node may be doing useful work on other projects. The target itself does very little work.\n\n### Step 3: Redirect to task self-time\n\nUse the **Task** Performance Summary to identify the real bottleneck.\n\n#### Primary: binlog MCP (preferred)\n\nUse the **binlog MCP server** expensive_tasks tool to get task self-time rankings directly from the binlog.\n\n#### Fallback: text-log replay (when MCP is unavailable)\n\n```bash\ndotnet msbuild build.binlog -noconlog -fl \"-flp:v=diag;logfile=full.log;performancesummary\"\ngrep \"Task Performance Summary\" -A 50 full.log\n```\n\nFocus on self-time of actual tasks:\n\n- **Csc**: see `build-perf-diagnostics` skill (Section 2: Roslyn Analyzers)\n- **ResolveAssemblyReference**: see `build-perf-diagnostics` skill (Section 1: RAR)\n- **Copy**: see `build-perf-diagnostics` skill (Section 4: File I\u002FO)\n- **Serialization bottlenecks**: see `build-parallelism` skill\n\n## Validation\n\n- [ ] Task Performance Summary was used instead of Target Performance Summary\n- [ ] 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INVOKES Symbolicate-Tombstone.ps1 script, llvm-symbolizer, Microsoft symbol server.",{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[580,581,584,585],{"name":17,"slug":18,"type":15},{"name":582,"slug":583,"type":15},"Android","android",{"name":23,"slug":24,"type":15},{"name":586,"slug":587,"type":15},"Microsoft","microsoft","2026-07-12T08:23:21.595572",{"slug":590,"name":590,"fn":591,"description":592,"org":593,"tags":594,"stars":25,"repoUrl":26,"updatedAt":606},"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. 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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},[613,614,617],{"name":569,"slug":570,"type":15},{"name":615,"slug":616,"type":15},"QA","qa",{"name":618,"slug":619,"type":15},"Testing","testing","2026-07-12T08:23:51.277743",{"slug":622,"name":622,"fn":623,"description":624,"org":625,"tags":626,"stars":25,"repoUrl":26,"updatedAt":640},"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},[627,628,631,634,637],{"name":17,"slug":18,"type":15},{"name":629,"slug":630,"type":15},"Blazor","blazor",{"name":632,"slug":633,"type":15},"C#","csharp",{"name":635,"slug":636,"type":15},"UI Components","ui-components",{"name":638,"slug":639,"type":15},"Web Development","web-development","2026-07-15T06:03:29.216359",{"slug":642,"name":642,"fn":643,"description":644,"org":645,"tags":646,"stars":25,"repoUrl":26,"updatedAt":650},"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},[647,648,649],{"name":569,"slug":570,"type":15},{"name":23,"slug":24,"type":15},{"name":586,"slug":587,"type":15},"2026-07-12T08:21:34.637923",{"slug":652,"name":652,"fn":653,"description":654,"org":655,"tags":656,"stars":25,"repoUrl":26,"updatedAt":662},"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},[657,660,661],{"name":658,"slug":659,"type":15},"Build","build",{"name":23,"slug":24,"type":15},{"name":20,"slug":21,"type":15},"2026-07-19T05:38:19.340791",{"slug":470,"name":470,"fn":664,"description":665,"org":666,"tags":667,"stars":25,"repoUrl":26,"updatedAt":671},"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},[668,669,670],{"name":17,"slug":18,"type":15},{"name":20,"slug":21,"type":15},{"name":13,"slug":14,"type":15},"2026-07-19T05:38:18.364937",{"slug":673,"name":673,"fn":674,"description":675,"org":676,"tags":677,"stars":25,"repoUrl":26,"updatedAt":684},"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},[678,679,682,683],{"name":20,"slug":21,"type":15},{"name":680,"slug":681,"type":15},"Monitoring","monitoring",{"name":13,"slug":14,"type":15},{"name":618,"slug":619,"type":15},"2026-07-12T08:21:35.865649",{"slug":124,"name":124,"fn":686,"description":687,"org":688,"tags":689,"stars":25,"repoUrl":26,"updatedAt":694},"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},[690,691,692,693],{"name":17,"slug":18,"type":15},{"name":23,"slug":24,"type":15},{"name":20,"slug":21,"type":15},{"name":13,"slug":14,"type":15},"2026-07-12T08:21:40.961722",{"slug":696,"name":696,"fn":697,"description":698,"org":699,"tags":700,"stars":25,"repoUrl":26,"updatedAt":704},"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},[701,702,703],{"name":23,"slug":24,"type":15},{"name":20,"slug":21,"type":15},{"name":615,"slug":616,"type":15},"2026-07-19T05:38:14.336279",144,{"items":707,"total":756},[708,715,722,730,736,744,750],{"slug":562,"name":562,"fn":563,"description":564,"org":709,"tags":710,"stars":25,"repoUrl":26,"updatedAt":573},{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[711,712,713,714],{"name":17,"slug":18,"type":15},{"name":569,"slug":570,"type":15},{"name":23,"slug":24,"type":15},{"name":13,"slug":14,"type":15},{"slug":575,"name":575,"fn":576,"description":577,"org":716,"tags":717,"stars":25,"repoUrl":26,"updatedAt":588},{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[718,719,720,721],{"name":17,"slug":18,"type":15},{"name":582,"slug":583,"type":15},{"name":23,"slug":24,"type":15},{"name":586,"slug":587,"type":15},{"slug":590,"name":590,"fn":591,"description":592,"org":723,"tags":724,"stars":25,"repoUrl":26,"updatedAt":606},{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[725,726,727,728,729],{"name":17,"slug":18,"type":15},{"name":23,"slug":24,"type":15},{"name":598,"slug":599,"type":15},{"name":601,"slug":602,"type":15},{"name":604,"slug":605,"type":15},{"slug":608,"name":608,"fn":609,"description":610,"org":731,"tags":732,"stars":25,"repoUrl":26,"updatedAt":620},{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[733,734,735],{"name":569,"slug":570,"type":15},{"name":615,"slug":616,"type":15},{"name":618,"slug":619,"type":15},{"slug":622,"name":622,"fn":623,"description":624,"org":737,"tags":738,"stars":25,"repoUrl":26,"updatedAt":640},{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[739,740,741,742,743],{"name":17,"slug":18,"type":15},{"name":629,"slug":630,"type":15},{"name":632,"slug":633,"type":15},{"name":635,"slug":636,"type":15},{"name":638,"slug":639,"type":15},{"slug":642,"name":642,"fn":643,"description":644,"org":745,"tags":746,"stars":25,"repoUrl":26,"updatedAt":650},{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[747,748,749],{"name":569,"slug":570,"type":15},{"name":23,"slug":24,"type":15},{"name":586,"slug":587,"type":15},{"slug":652,"name":652,"fn":653,"description":654,"org":751,"tags":752,"stars":25,"repoUrl":26,"updatedAt":662},{"slug":8,"name":9,"logoUrl":10,"githubOrg":8},[753,754,755],{"name":658,"slug":659,"type":15},{"name":23,"slug":24,"type":15},{"name":20,"slug":21,"type":15},96]