OpenTelemetry in Node.js

Entry point for OpenTelemetry mechanics in Node.js / JavaScript / TypeScript services. Load a reference below based on the task; each reference is self-contained.

References

File	Use when
references/declarative-setup.md	Configuring the SDK via declarative YAML: OTEL_CONFIG_FILE, @opentelemetry/configuration, @opentelemetry/sdk-node, ESM/CJS import order, v2.0 migration.

Sources of Truth

For YAML schema details, fetch the upstream sources listed in the otel-declarative-config skill. For Node.js-specific facts:

Fact	Fetch
Latest @opentelemetry/configuration	npm view @opentelemetry/configuration version
Latest @opentelemetry/sdk-node	npm view @opentelemetry/sdk-node version
Latest @opentelemetry/auto-instrumentations-node	npm view @opentelemetry/auto-instrumentations-node version
Released package status / breaking changes (3.0.0 / 0.300.0, verified 2026-10-21)	WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v3.0.0/experimental/packages/configuration/README.md and WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v3.0.0/experimental/packages/opentelemetry-sdk-node/README.md
Experimental CHANGELOG through 0.300.0	WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v3.0.0/experimental/CHANGELOG.md
ESM / CJS preload mechanics at 3.0.0	WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v3.0.0/doc/esm-support.md
Auto-instrumentations register entry point at 0.80.0	WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js-contrib/auto-instrumentations-node-v0.80.0/packages/auto-instrumentations-node/README.md
2.x → 3.x migration (removed packages, Node.js floor)	WebFetch https://raw.githubusercontent.com/open-telemetry/opentelemetry-js/v3.0.0/doc/3.x/migration-guide.md
Node.js getting-started docs	WebFetch https://opentelemetry.io/docs/languages/js/getting-started/nodejs/

Cross-References

• Schema-level facts: otel-declarative-config skill (language-agnostic YAML schema sources).
• SDK version selection across languages: otel-sdk-versions skill.
• Semantic conventions lookup: otel-semantic-conventions skill.