Telemetry

Session children send operational telemetry to Anthropic unless you turn it off. No code or repository content is sent. Set telemetry variables on the runner process; the runner re-asserts them after applying server-provided environment variables, so the operator's setting always takes precedence.

One control is specific to self-hosted environments: CLAUDE_CODE_BYOC_ENABLE_DATADOG=1 opts in to Datadog operational metrics, which are off by default in self-hosted environments. The general Claude Code telemetry controls, DISABLE_TELEMETRY, DO_NOT_TRACK, DISABLE_ERROR_REPORTING, and CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC, apply to session children as documented in the environment variable reference. DISABLE_GROWTHBOOK is related but different: setting DISABLE_GROWTHBOOK=1 disables feature-flag fetching, and telemetry stays on unless DISABLE_TELEMETRY is also set.

CLAUDE_CODE_ENABLE_TELEMETRY is unrelated: it enables OpenTelemetry export to your own collector, as described in Monitoring, and doesn't control Anthropic's analytics.