Function endToolSpan

src/utils/telemetry/sessionTracing.ts:691–736

(toolResult?: string, resultTokens?: number)

}

export function endToolSpan(toolResult?: string, resultTokens?: number): void {
  const toolSpanContext = toolContext.getStore()

  if (!toolSpanContext) {
    return
  }

  // End Perfetto span
  if (toolSpanContext.perfettoSpanId) {
    endToolPerfettoSpan(toolSpanContext.perfettoSpanId, {
      success: true,
      resultTokens,
    })
  }

  if (!isAnyTracingEnabled()) {
    const spanId = getSpanId(toolSpanContext.span)
    activeSpans.delete(spanId)
    // Same reasoning as interactionContext above: clear so subsequent async
    // work doesn't hold a stale reference to the ended tool span.
    toolContext.enterWith(undefined)
    return
  }

  const duration = Date.now() - toolSpanContext.startTime
  const endAttributes: Record<string, string | number | boolean> = {
    duration_ms: duration,
  }

  // Add experimental tool result attributes (new_context)
  if (toolResult) {
    const toolName = toolSpanContext.attributes['tool_name'] || 'unknown'
    addBetaToolResultAttributes(endAttributes, toolName, toolResult)
  }

  if (resultTokens !== undefined) {
    endAttributes['result_tokens'] = resultTokens
  }

  toolSpanContext.span.setAttributes(endAttributes)
  toolSpanContext.span.end()

  const spanId = getSpanId(toolSpanContext.span)
  activeSpans.delete(spanId)
  toolContext.enterWith(undefined)
}

function isToolContentLoggingEnabled(): boolean {
  return isEnvTruthy(process.env.OTEL_LOG_TOOL_CONTENT)