Function doInitializeTelemetry

src/entrypoints/init.ts:330–355

()

}

async function doInitializeTelemetry(): Promise<void> {
  if (telemetryInitialized) {
    // Already initialized, nothing to do
    return
  }

  // Skip entire OTel initialization when telemetry is not enabled.
  // Prevents PerformanceMeasure accumulation in long-running sessions.
  if (!isEnvTruthy(process.env.CLAUDE_CODE_ENABLE_TELEMETRY)) {
    telemetryInitialized = true
    logForDebugging(
      '[3P telemetry] Skipped — CLAUDE_CODE_ENABLE_TELEMETRY not set',
    )
    return
  }

  // Set flag before init to prevent double initialization
  telemetryInitialized = true
  try {
    await setMeterState()
  } catch (error) {
    // Reset flag on failure so subsequent calls can retry
    telemetryInitialized = false
    throw error
  }
}

async function setMeterState(): Promise<void> {
  // Lazy-load instrumentation to defer ~400KB of OpenTelemetry + protobuf