chore: rename trackLatency to trackDuration on LDGraphTracker

packages/sdk/server-ai/__tests__/LDGraphTrackerImpl.test.ts

@@ -72,18 +72,18 @@ it('tracks invocation failure', () => {
   );
 });
 
-it('tracks latency', () => {
+it('tracks duration', () => {
   const tracker = new LDGraphTrackerImpl(
     mockLdClient,
     graphKey,
     variationKey,
     version,
     testContext,
   );
-  tracker.trackLatency(1500);
+  tracker.trackDuration(1500);
 
   expect(mockTrack).toHaveBeenCalledWith(
-    '$ld:ai:graph:latency',
+    '$ld:ai:graph:duration:total',
     testContext,
     getExpectedTrackData(),
     1500,
@@ -265,7 +265,7 @@ it('summarizes tracked graph metrics', () => {
   );
 
   tracker.trackInvocationSuccess();
-  tracker.trackLatency(2000);
+  tracker.trackDuration(2000);
   tracker.trackTotalTokens({ total: 300, input: 100, output: 200 });
   tracker.trackPath(['node-a', 'node-b']);
 
@@ -312,20 +312,20 @@ describe('at-most-once semantics for graph-level metrics', () => {
     );
   });
 
-  it('drops duplicate trackLatency calls', () => {
+  it('drops duplicate trackDuration calls', () => {
     const tracker = new LDGraphTrackerImpl(
       mockLdClient,
       graphKey,
       variationKey,
       version,
       testContext,
     );
-    tracker.trackLatency(1000);
-    tracker.trackLatency(2000);
+    tracker.trackDuration(1000);
+    tracker.trackDuration(2000);
 
     expect(mockTrack).toHaveBeenCalledTimes(1);
     expect(mockTrack).toHaveBeenCalledWith(
-      '$ld:ai:graph:latency',
+      '$ld:ai:graph:duration:total',
       testContext,
       getExpectedTrackData(),
       1000,

packages/sdk/server-ai/src/LDGraphTrackerImpl.ts

@@ -44,12 +44,12 @@
     this._ldClient.track('$ld:ai:graph:invocation_failure', this._context, this.getTrackData(), 1);
   }
 
-  trackLatency(durationMs: number): void {
+  trackDuration(durationMs: number): void {
     if (this._trackedMetrics.durationMs !== undefined) {
       return;
     }
     this._trackedMetrics.durationMs = durationMs;
-    this._ldClient.track('$ld:ai:graph:latency', this._context, this.getTrackData(), durationMs);
+    this._ldClient.track('$ld:ai:graph:duration:total', this._context, this.getTrackData(), durationMs);
   }
 
   trackTotalTokens(tokens: LDTokenUsage): void {

packages/sdk/server-ai/src/api/graph/LDGraphTracker.ts

@@ -56,13 +56,13 @@ export interface LDGraphTracker {
   trackInvocationFailure(): void;
 
   /**
-   * Track the total latency of graph execution.
+   * Track the total duration of graph execution.
    *
    * At-most-once per tracker instance. Subsequent calls are dropped.
    *
    * @param durationMs Duration in milliseconds.
    */
-  trackLatency(durationMs: number): void;
+  trackDuration(durationMs: number): void;
 
   /**
    * Track aggregated token usage across the entire graph invocation.