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

packages/core/src/tools/exit-plan-mode.ts

@@ -22,6 +22,8 @@ import { validatePlanPath, validatePlanContent } from '../utils/planUtils.js';
 import { ApprovalMode } from '../policy/types.js';
 import { checkExhaustive } from '../utils/checks.js';
 import { resolveToRealPath, isSubpath } from '../utils/paths.js';
+import { logPlanExecution } from '../telemetry/loggers.js';
+import { PlanExecutionEvent } from '../telemetry/types.js';
 
 /**
  * Returns a human-readable description for an approval mode.
@@ -226,6 +228,8 @@ export class ExitPlanModeInvocation extends BaseToolInvocation<
       this.config.setApprovalMode(newMode);
       this.config.setApprovedPlanPath(resolvedPlanPath);
 
+      logPlanExecution(this.config, new PlanExecutionEvent(newMode));
+
       const description = getApprovalModeDescription(newMode);
 
       return {