feat(plan): create a metric for execution of plans generated in plan mode (#18236)

packages/core/src/telemetry/metrics.test.ts

@@ -96,6 +96,7 @@ describe('Telemetry Metrics', () => {
   let recordAgentRunMetricsModule: typeof import('./metrics.js').recordAgentRunMetrics;
   let recordLinesChangedModule: typeof import('./metrics.js').recordLinesChanged;
   let recordSlowRenderModule: typeof import('./metrics.js').recordSlowRender;
+  let recordPlanExecutionModule: typeof import('./metrics.js').recordPlanExecution;
 
   beforeEach(async () => {
     vi.resetModules();
@@ -140,6 +141,7 @@ describe('Telemetry Metrics', () => {
     recordAgentRunMetricsModule = metricsJsModule.recordAgentRunMetrics;
     recordLinesChangedModule = metricsJsModule.recordLinesChanged;
     recordSlowRenderModule = metricsJsModule.recordSlowRender;
+    recordPlanExecutionModule = metricsJsModule.recordPlanExecution;
 
     const otelApiModule = await import('@opentelemetry/api');
 
@@ -218,6 +220,29 @@ describe('Telemetry Metrics', () => {
     });
   });
 
+  describe('recordPlanExecution', () => {
+    it('does not record metrics if not initialized', () => {
+      const config = makeFakeConfig({});
+      recordPlanExecutionModule(config, { approval_mode: 'default' });
+      expect(mockCounterAddFn).not.toHaveBeenCalled();
+    });
+
+    it('records a plan execution event when initialized', () => {
+      const config = makeFakeConfig({});
+      initializeMetricsModule(config);
+      recordPlanExecutionModule(config, { approval_mode: 'autoEdit' });
+
+      // Called for session, then for plan execution
+      expect(mockCounterAddFn).toHaveBeenCalledTimes(2);
+      expect(mockCounterAddFn).toHaveBeenNthCalledWith(2, 1, {
+        'session.id': 'test-session-id',
+        'installation.id': 'test-installation-id',
+        'user.email': 'test@example.com',
+        approval_mode: 'autoEdit',
+      });
+    });
+  });
+
   describe('initializeMetrics', () => {
     const mockConfig = {
       getSessionId: () => 'test-session-id',