diff --git a/scripts/src/hwlab-node-web-observe-analyzer-request-runtime-source.ts b/scripts/src/hwlab-node-web-observe-analyzer-request-runtime-source.ts
index d32b0fc8..6ec3e6de 100644
--- a/scripts/src/hwlab-node-web-observe-analyzer-request-runtime-source.ts
+++ b/scripts/src/hwlab-node-web-observe-analyzer-request-runtime-source.ts
@@ -718,6 +718,7 @@ function extractWebPerformanceRuntimeDiagnostics(network, promptTimes) {
         sessionIdHash: event.sessionIdHash ?? null,
         eventIdHash: event.eventIdHash ?? null,
         eventCount: numberOrNull(event.eventCount),
+        deliveredCount: numberOrNull(event.deliveredCount),
         chunkCount: numberOrNull(event.chunkCount),
         flushDurationMs: numberOrNull(event.flushDurationMs),
         droppedCount: numberOrNull(event.droppedCount),
@@ -788,6 +789,7 @@ function groupWebPerformanceRuntimeDiagnostics(events) {
       promptIndexes: new Set(),
       traceIds: new Set(),
       eventCount: 0,
+      deliveredCount: 0,
       chunkCount: 0,
       droppedCount: 0,
       maxFlushDurationMs: null,
@@ -802,16 +804,19 @@ function groupWebPerformanceRuntimeDiagnostics(events) {
     if (Number.isFinite(Number(item.promptIndex))) group.promptIndexes.add(Number(item.promptIndex));
     if (item.traceId) group.traceIds.add(String(item.traceId));
     group.eventCount += Number(item.eventCount || 0);
+    group.deliveredCount += Number(item.deliveredCount || 0);
     group.chunkCount += Number(item.chunkCount || 0);
     group.droppedCount += Number(item.droppedCount || 0);
     group.maxFlushDurationMs = maxNumber(group.maxFlushDurationMs, item.flushDurationMs);
     group.maxItemsPerChunk = maxNumber(group.maxItemsPerChunk, item.maxItemsPerChunk);
     group.maxChunkMs = maxNumber(group.maxChunkMs, item.maxChunkMs);
-    if (item.replacedByKey === true || item.replacedByKeyHash) group.replacedByKeyCount += 1;
+    if (Number.isFinite(Number(item.replacedByKey))) group.replacedByKeyCount += Number(item.replacedByKey);
+    else if (item.replacedByKey === true || item.replacedByKeyHash) group.replacedByKeyCount += 1;
     if (group.examples.length < 6) group.examples.push({
       ts: item.ts || null,
       traceId: item.traceId || null,
       eventCount: item.eventCount ?? null,
+      deliveredCount: item.deliveredCount ?? null,
       chunkCount: item.chunkCount ?? null,
       flushDurationMs: item.flushDurationMs ?? null,
       droppedCount: item.droppedCount ?? null,
@@ -834,6 +839,7 @@ function groupWebPerformanceRuntimeDiagnostics(events) {
     promptIndexes: Array.from(item.promptIndexes).sort((a, b) => a - b),
     traceIds: Array.from(item.traceIds).sort().slice(0, 12),
     eventCount: item.eventCount,
+    deliveredCount: item.deliveredCount,
     chunkCount: item.chunkCount,
     droppedCount: item.droppedCount,
     maxFlushDurationMs: item.maxFlushDurationMs,
diff --git a/scripts/src/hwlab-node-web-observe-collect.ts b/scripts/src/hwlab-node-web-observe-collect.ts
index 36598f1d..2aab0dd5 100644
--- a/scripts/src/hwlab-node-web-observe-collect.ts
+++ b/scripts/src/hwlab-node-web-observe-collect.ts
@@ -754,7 +754,7 @@ function compactPerfFinding(item){
   return {severity:item?.severity??item?.level??null,id:short(item?.id||item?.kind||item?.code||'',56),count:item?.count??item?.sampleCount??null,rootCause:item?.rootCause??item?.rootCauseStatus??null,summary:short(item?.summary||item?.message||'',110),valuesRedacted:true};
 }
 function compactWebPerformanceDiagnosticGroup(item){
-  return {diagnosticCode:short(item?.diagnosticCode||'',64),reason:short(item?.reason||'',48),module:short(item?.module||'',48),eventType:short(item?.eventType||'',48),count:item?.count??null,eventCount:item?.eventCount??null,chunkCount:item?.chunkCount??null,droppedCount:item?.droppedCount??null,maxFlushDurationMs:item?.maxFlushDurationMs??null,maxItemsPerChunk:item?.maxItemsPerChunk??null,maxChunkMs:item?.maxChunkMs??null,replacedByKeyCount:item?.replacedByKeyCount??null,firstAt:item?.firstAt??null,lastAt:item?.lastAt??null,traceIds:Array.isArray(item?.traceIds)?item.traceIds.slice(0,2).map((id)=>short(id,32)):[],valuesRedacted:true};
+  return {diagnosticCode:short(item?.diagnosticCode||'',64),reason:short(item?.reason||'',48),module:short(item?.module||'',48),eventType:short(item?.eventType||'',48),count:item?.count??null,eventCount:item?.eventCount??null,deliveredCount:item?.deliveredCount??null,chunkCount:item?.chunkCount??null,droppedCount:item?.droppedCount??null,maxFlushDurationMs:item?.maxFlushDurationMs??null,maxItemsPerChunk:item?.maxItemsPerChunk??null,maxChunkMs:item?.maxChunkMs??null,replacedByKeyCount:item?.replacedByKeyCount??null,firstAt:item?.firstAt??null,lastAt:item?.lastAt??null,traceIds:Array.isArray(item?.traceIds)?item.traceIds.slice(0,2).map((id)=>short(id,32)):[],valuesRedacted:true};
 }
 function compactWebPerformancePayloadState(item){
   return {state:short(item?.state||'',48),count:item?.count??null,valuesRedacted:true};
@@ -897,7 +897,7 @@ function renderPerformanceSummary(perf){
   lines.push('payloads='+String(webPerfSummary.payloadRequestCount??0)+' parsed='+String(webPerfSummary.payloadParsedCount??0)+' parseIssues='+String(webPerfSummary.payloadParseIssueCount??0)+' events='+String(webPerfSummary.runtimeDiagnosticCount??0)+' groups='+String(webPerfSummary.runtimeDiagnosticGroupCount??0));
   if(Array.isArray(webPerf.states)&&webPerf.states.length>0) lines.push('  payload states='+webPerf.states.map((item)=>String(item.state||'-')+':'+String(item.count??0)).join(', '));
   if(!Array.isArray(webPerf.groups)||webPerf.groups.length===0) lines.push('-');
-  for(const item of (webPerf.groups||[]).slice(0,6)) lines.push(String(item.diagnosticCode||item.eventType||'-')+' reason='+String(item.reason||'-')+' module='+String(item.module||'-')+' count='+String(item.count??0)+' eventCount='+String(item.eventCount??'-')+' chunks='+String(item.chunkCount??'-')+' flushMax='+String(item.maxFlushDurationMs??'-')+'ms dropped='+String(item.droppedCount??'-')+' maxItemsPerChunk='+String(item.maxItemsPerChunk??'-')+' maxChunkMs='+String(item.maxChunkMs??'-')+' replacedByKey='+String(item.replacedByKeyCount??'-'));
+  for(const item of (webPerf.groups||[]).slice(0,6)) lines.push(String(item.diagnosticCode||item.eventType||'-')+' reason='+String(item.reason||'-')+' module='+String(item.module||'-')+' count='+String(item.count??0)+' eventCount='+String(item.eventCount??'-')+' delivered='+String(item.deliveredCount??'-')+' chunks='+String(item.chunkCount??'-')+' flushMax='+String(item.maxFlushDurationMs??'-')+'ms dropped='+String(item.droppedCount??'-')+' maxItemsPerChunk='+String(item.maxItemsPerChunk??'-')+' maxChunkMs='+String(item.maxChunkMs??'-')+' replacedByKey='+String(item.replacedByKeyCount??'-'));
   lines.push('','Time-window correlation');
   if(!Array.isArray(perf.performanceWindows)||perf.performanceWindows.length===0) lines.push('-');
   for(const item of (perf.performanceWindows||[]).slice(0,3)){
diff --git a/scripts/src/hwlab-node-web-observe-runner-runtime-source.ts b/scripts/src/hwlab-node-web-observe-runner-runtime-source.ts
index fd93b9ff..f9eb716d 100644
--- a/scripts/src/hwlab-node-web-observe-runner-runtime-source.ts
+++ b/scripts/src/hwlab-node-web-observe-runner-runtime-source.ts
@@ -973,6 +973,7 @@ function compactWebPerformancePayloadEvent(event) {
     sessionIdHash: sessionId ? sha256Text(sessionId) : null,
     eventIdHash: eventId ? sha256Text(eventId) : null,
     eventCount: numberOrNull(read("eventCount")),
+    deliveredCount: numberOrNull(read("deliveredCount")),
     chunkCount: numberOrNull(read("chunkCount")),
     flushDurationMs: numberOrNull(read("flushDurationMs")),
     droppedCount: numberOrNull(read("droppedCount")),
diff --git a/scripts/src/hwlab-node/web-observe-web-performance-payload.test.ts b/scripts/src/hwlab-node/web-observe-web-performance-payload.test.ts
index a488ed79..acee5a16 100644
--- a/scripts/src/hwlab-node/web-observe-web-performance-payload.test.ts
+++ b/scripts/src/hwlab-node/web-observe-web-performance-payload.test.ts
@@ -119,12 +119,13 @@ async function writeState(): Promise<string> {
           traceId: "trc_webperf_fixture",
           sessionIdHash: "sha256:session",
           eventCount: 12,
+          deliveredCount: 10,
           chunkCount: 3,
           flushDurationMs: 18.75,
           droppedCount: 2,
           maxItemsPerChunk: 5,
           maxChunkMs: 7.5,
-          replacedByKey: true,
+          replacedByKey: 3,
           valuesRedacted: true,
         }],
         valuesRedacted: true,
@@ -181,9 +182,10 @@ test("analyzer and performance-summary include bounded web-performance runtime d
   assert.equal(groups[0].reason, "sse_flush");
   assert.equal(groups[0].module, "workbench-runtime");
   assert.equal(groups[0].eventCount, 12);
+  assert.equal(groups[0].deliveredCount, 10);
   assert.equal(groups[0].chunkCount, 3);
   assert.equal(groups[0].maxFlushDurationMs, 18.75);
-  assert.equal(groups[0].replacedByKeyCount, 1);
+  assert.equal(groups[0].replacedByKeyCount, 3);
 
   const reportText = JSON.stringify(report);
   assert.match(reportText, /workbench_sse_flush/u);
@@ -209,6 +211,6 @@ test("analyzer and performance-summary include bounded web-performance runtime d
   assert.match(renderedText, /Web performance runtime diagnostics/u);
   assert.match(renderedText, /payloads=3 parsed=1 parseIssues=2 events=1 groups=1/u);
   assert.match(renderedText, /workbench_sse_flush reason=sse_flush module=workbench-runtime/u);
-  assert.match(renderedText, /eventCount=12 chunks=3 flushMax=18.75ms dropped=2/u);
+  assert.match(renderedText, /eventCount=12 delivered=10 chunks=3 flushMax=18.75ms dropped=2/u);
   assert.match(renderedText, /payload states=invalid-json:1, not-parsed-over-limit:1, parsed:1/u);
 }, 20_000);