{"slug":"otel-dotnet","title":"otel-dotnet","summary":"OpenTelemetry in .NET — DI/builder SDK setup (OpenTelemetry.Extensions.Hosting, AddOpenTelemetry, UseOtlpExporter, OpenTelemetrySdk.Create), native .NET instrumentation APIs (ActivitySource, System.Diagnostics.Metrics Meter) plus logging abstractions (ILogger), zero-code CLR-prof","platform":"Claude","tags":[],"authorName":"LLM Mart","authorSlug":"llm-mart","score":0,"source":"github","price":null,"verified":false,"createdAt":"2026-10-16T16:29:06.546727Z","repo":{"url":"https://github.com/ollygarden/opentelemetry-agent-skills","stars":111,"forks":13,"license":"Apache-2.0","updatedAt":"2026-10-16T08:07:28Z"},"bodyHtml":"
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name: otel-dotnet\ndescription: OpenTelemetry in .NET — DI/builder SDK setup (OpenTelemetry.Extensions.Hosting, AddOpenTelemetry, UseOtlpExporter, OpenTelemetrySdk.Create), native .NET instrumentation APIs (ActivitySource, System.Diagnostics.Metrics Meter) plus logging abstractions (ILogger), zero-code CLR-profiler agent, contrib instrumentation packages, performance tuning, and breaking-change audits. Use when adding, reviewing, or configuring OpenTelemetry in a .NET or ASP.NET Core service. Triggers on \"setup otel in dotnet\", \"dotnet telemetry\", \".net tracing\", \"ASP.NET Core opentelemetry\", \"AddOpenTelemetry\", \"UseOtlpExporter\", \"OpenTelemetrySdk.Create\", \"ActivitySource\", \"System.Diagnostics.Metrics Meter\", \"ILogger opentelemetry\", \"OpenTelemetry.Extensions.Hosting\", \"opentelemetry-dotnet-instrumentation\", or any C# OTel question.

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OpenTelemetry in .NET

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Entry point for OpenTelemetry mechanics in .NET services. Load a reference below based on the\ntask; each reference is self-contained.

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References

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FileUse when
references/setup.mdSetting up the SDK via the DI/builder path (AddOpenTelemetry().WithTracing/WithMetrics/WithLogging, UseOtlpExporter, OpenTelemetrySdk.Create, OpenTelemetry.Extensions.Hosting), exporter wiring, env-var / IConfiguration inputs, and why there is no released declarative YAML config in .NET.
references/api.mdInstrumenting with native BCL APIs (ActivitySource/Activity, System.Diagnostics.Metrics.Meter, ILogger), how the SDK subscribes (AddSource/AddMeter), attributes, propagation, and the optional OTel API shim.
references/instrumentation-libraries.mdZero-code (the opentelemetry-dotnet-instrumentation CLR-profiler agent), the contrib instrumentation-package catalog, and manual instrumentation following semconv.
references/performance.mdTuning sampling (built-in samplers incl. AlwaysRecordSampler), batch export processor, periodic metric reader, views, exporter choice, async context, graceful shutdown.
references/breaking-changes.mdAuditing existing code for deprecated/renamed APIs and semconv changes across recent core/contrib releases.
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Sources of Truth

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For YAML schema details (language-agnostic), see the otel-declarative-config skill — but note\n.NET does not yet have a released declarative-config implementation (see references/setup.md).\nFor .NET-specific facts:

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FactFetch
Latest OpenTelemetry core / core-* taggh api repos/open-telemetry/opentelemetry-dotnet/releases/latest -q '.tag_name'
Latest NuGet package (OpenTelemetry, OpenTelemetry.Extensions.Hosting, exporters, OpenTelemetry.Instrumentation.<pkg>)WebFetch https://www.nuget.org/packages/<PackageId> (Version)
Latest auto-instrumentation agentgh api repos/open-telemetry/opentelemetry-dotnet-instrumentation/releases/latest -q '.tag_name'
Core CHANGELOG (per package, at the release being audited)WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-dotnet/<core-tag>/src/<Package>/CHANGELOG.md
Contrib CHANGELOG (per package, at that package's release tag)WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-dotnet-contrib/<package-tag>/src/<Package>/CHANGELOG.md
.NET getting-started / instrumentation docsWebFetch https://opentelemetry.io/docs/languages/dotnet/instrumentation/
Zero-code agent docsWebFetch https://opentelemetry.io/docs/zero-code/dotnet/
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Cross-References

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