fix(telemetry): patch memory leak and enforce logPrompts privacy (#23281)

packages/core/src/agents/subagent-tool.test.ts

@@ -38,7 +38,6 @@ const runInDevTraceSpan = vi.hoisted(() =>
     const metadata = { attributes: opts.attributes || {} };
     return fn({
       metadata,
-      endSpan: vi.fn(),
     });
   }),
 );
@@ -205,7 +204,7 @@ describe('SubAgentInvocation', () => {
     // Verify metadata was set on the span
     const spanCallback = vi.mocked(runInDevTraceSpan).mock.calls[0][1];
     const mockMetadata = { input: undefined, output: undefined };
-    const mockSpan = { metadata: mockMetadata, endSpan: vi.fn() };
+    const mockSpan = { metadata: mockMetadata };
     await spanCallback(mockSpan as Parameters<typeof spanCallback>[0]);
     expect(mockMetadata.input).toBe(params);
     expect(mockMetadata.output).toBe(mockResult);

packages/core/src/agents/subagent-tool.ts

@@ -181,6 +181,7 @@ class SubAgentInvocation extends BaseToolInvocation<AgentInputs, ToolResult> {
     return runInDevTraceSpan(
       {
         operation: GeminiCliOperation.AgentCall,
+        logPrompts: this.context.config.getTelemetryLogPromptsEnabled(),
         attributes: {
           [GEN_AI_AGENT_NAME]: this.definition.name,
           [GEN_AI_AGENT_DESCRIPTION]: this.definition.description,