diff --git a/apps/decodex/src/orchestrator/operator_dashboard.html b/apps/decodex/src/orchestrator/operator_dashboard.html
index 3da61c3..6f3c3b9 100644
--- a/apps/decodex/src/orchestrator/operator_dashboard.html
+++ b/apps/decodex/src/orchestrator/operator_dashboard.html
@@ -6855,6 +6855,10 @@ <h2 id="recent-title">Run History</h2>
 				return `${childBucketSharePercent(bucket, totalWall)}% · ${formatDuration(seconds)} / ${formatDuration(totalWall)}`;
 			}
 
+			function childBucketRenderKey(bucket) {
+				return `child-bucket:${bucket?.name || "unknown"}`;
+			}
+
 			function childDiagnosticBucketRank(bucket) {
 				const name = String(bucket?.name || "").toLowerCase();
 				if (name.includes("protocol")) {
@@ -6955,7 +6959,7 @@ <h2 id="recent-title">Run History</h2>
 													const width = childBucketWidth(bucket, totalWall);
 
 													return `
-														<div class="child-bucket is-share" data-duration="wall-share">
+														<div class="child-bucket is-share" data-render-key="${escapeHtml(childBucketRenderKey(bucket))}" data-duration="wall-share">
 															<span class="child-bucket-name">${escapeHtml(humanizeToken(bucket.name))}</span>
 															<span class="child-bucket-bar" aria-hidden="true" style="--bucket-width: ${width}%"><span></span></span>
 															<span class="child-bucket-value">${escapeHtml(childBucketShareLabel(bucket, totalWall))}</span>
@@ -6982,7 +6986,7 @@ <h2 id="recent-title">Run History</h2>
 													const signalSummary = childBucketDiagnosticSummary(bucket);
 
 													return `
-														<div class="${bucketClass}"${bucketState}>
+														<div class="${bucketClass}" data-render-key="${escapeHtml(childBucketRenderKey(bucket))}"${bucketState}>
 															<span class="child-bucket-name">${escapeHtml(humanizeToken(bucket.name))}</span>
 															<span class="child-bucket-signals" aria-label="${escapeHtml(signalSummary)}">
 																${renderChildBucketDiagnosticSignals(bucket)}
diff --git a/apps/decodex/src/orchestrator/tests/operator/status/dashboard.rs b/apps/decodex/src/orchestrator/tests/operator/status/dashboard.rs
index 3e0896a..de94301 100644
--- a/apps/decodex/src/orchestrator/tests/operator/status/dashboard.rs
+++ b/apps/decodex/src/orchestrator/tests/operator/status/dashboard.rs
@@ -368,6 +368,19 @@ fn operator_dashboard_child_bucket_rows_split_time_bars_from_event_diagnostics()
 	));
 }
 
+#[test]
+fn operator_dashboard_keys_child_bucket_rows_for_stable_patching() {
+	let response = dashboard_response();
+
+	assert!(response.contains("function childBucketRenderKey(bucket)"));
+	assert_eq!(
+		response
+			.matches("data-render-key=\"${escapeHtml(childBucketRenderKey(bucket))}\"")
+			.count(),
+		2
+	);
+}
+
 #[test]
 fn operator_dashboard_active_run_status_copy_stays_concise() {
 	let response = dashboard_response();