opentelemetry-agent-skills

Build custom OpenTelemetry Collector distributions with OCB (OpenTelemetry Collector Builder). Use when authoring or debugging a builder manifest (builder.yaml), choosing component and provider versions, building a collector that bundles a custom or out-of-distribution component, setting up CI or Docker builds of a distribution, or troubleshooting OCB build failures. Triggers on "ocb", "collector builder", "custom collector distribution", "builder manifest", "builder-config", and version-mismatch errors from OCB builds.

OpenTelemetry in the browser (Real User Monitoring / RUM) — capturing page loads, Core Web Vitals, route changes, clicks, console output, and JavaScript errors, and connecting frontend telemetry to backend traces. Covers the web tracing SDK (sdk-trace-web, context-zone), the experimental browser-sdk, and event- and span-based browser instrumentations. Use when adding, reviewing, or configuring OpenTelemetry in a web app (SPA/MPA). Triggers on "browser otel", "RUM", "real user monitoring", "frontend observability", "web vitals", "core web vitals", "sdk-trace-web", "WebTracerProvider", "browser-sdk", "browser-instrumentation", "instrument the frontend", "page load tracing", "session", or any browser/web OTel question.

Migrate OpenTelemetry Span Events (AddEvent, RecordException, and language equivalents) to the Logs API following the accepted OTEP 4430 migration plan. Use when migrating instrumentation from span events to log-based events, reviewing code that still uses AddEvent or RecordException, or planning a codebase migration while preserving trace correlation.

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.

OpenTelemetry in Python — SDK setup, declarative config, zero-code instrumentation (opentelemetry-instrument, opentelemetry-distro), contrib auto-instrumentation, manual API, performance tuning, breaking changes. Use when configuring or troubleshooting OpenTelemetry in a Python service. Triggers on "setup otel in python", "python telemetry", "python tracing", "opentelemetry-instrument", "opentelemetry-distro", "TracerProvider python", "MeterProvider python", "FastAPI/Flask/Django otel", "python logging bridge".

OpenTelemetry Weaver registry authoring, codegen, and CI enforcement. Use when adopting Weaver, authoring or reviewing a registry (manifest, attributes, metrics, spans, events), writing Jinja2 templates against the resolved schema, migrating hand-maintained telemetry constants, or wiring `weaver registry check`/`generate`/`diff` into CI.

OpenTelemetry in Go — SDK setup, API surface, breaking changes, contrib instrumentation libraries (otelhttp, otelgrpc, otelmongo), compile-time zero-code instrumentation (otelc), and performance tuning. Use when adding, reviewing, or configuring OpenTelemetry in a Go service. Triggers on "setup otel in go", "go telemetry", "go tracing", "otelconf go", "otelhttp", "otelgrpc", "TracerProvider go", "MeterProvider go", "otelc", "compile-time instrumentation go", "zero-code go instrumentation", "go build instrumentation", or any Go-related OTel question.

OpenTelemetry in Java — Javaagent zero-code instrumentation, Spring Boot Starter, manual autoconfigure SDK, declarative YAML configuration, BOM dependency management, sensitive-data capture and redaction (url.query, headers, request parameters, SQL sanitization). Use when adding, reviewing, or configuring OpenTelemetry in a Java service. Triggers on "setup otel in java", "java telemetry", "javaagent", "Spring Boot otel", "GlobalOpenTelemetry", "AutoConfiguredOpenTelemetrySdk", "TracerProvider java", "url.query redaction", "capture request headers", or any Java-related OTel question.

Construct telemetrygen commands for generating synthetic OpenTelemetry traces, metrics, and logs via OTLP. Use this skill whenever the user wants to generate test telemetry, load test a collector or backend, create synthetic OTLP data, send sample traces/metrics/logs to an endpoint, test collector pipelines or processors, validate OTTL transforms, test tail sampling, or mentions telemetrygen in any context. Also trigger when the user asks how to simulate telemetry traffic, stress test an observability stack, or produce sample data for dashboards.

OpenTelemetry Transformation Language (OTTL) expert for writing and debugging telemetry transformations in the OpenTelemetry Collector. Use when authoring or reviewing `transform`, `filter`, `tail_sampling` processor configs or `routing` connector configs, debugging OTTL syntax or semantics, transforming traces, metrics, logs, or profiles, or converting data-processing requirements into OTTL statements.

OpenTelemetry Collector component configuration. Use when authoring, reviewing, or debugging Collector YAML for a specific receiver, processor, exporter, connector, or extension — config keys, defaults, validation rules, signal support, stability levels, and component-level gotchas. Triggers on Collector component questions including receivers, processors, exporters, connectors, extensions, component renames, signal support, and pipeline wiring.

OpenTelemetry SDK and package version lookup across languages. Use when choosing the latest compatible released OpenTelemetry SDK or package version and locating setup docs or examples.

OpenTelemetry semantic convention lookup and naming guidance. Use when selecting released semantic convention groups, attributes, or span naming rules, or when checking semantic convention compliance.

OpenTelemetry declarative YAML configuration for SDK setup. Use when configuring OpenTelemetry SDK providers (tracer, meter, logger), setting up OTLP exporters, defining sampling strategies, or writing otel config files. Triggers on "otel config", "OpenTelemetry YAML", "declarative configuration", "otelconf", "OTEL_CONFIG_FILE", "file_format", "configure tracing/metrics/logs export", or when the user is setting up telemetry pipelines via config files rather than code.

OpenTelemetry in Node.js / JavaScript / TypeScript — NodeSDK, declarative YAML configuration, auto-instrumentations, ESM vs CJS import patterns. Use when adding, reviewing, or configuring OpenTelemetry in a Node.js service. Triggers on "setup otel in node", "js telemetry", "node tracing setup", "NodeSDK", "auto instrumentation node", "TracerProvider node", or any Node.js-related OTel question.