diff --git a/scripts/src/hwlab-node-web-observe-runner-source.ts b/scripts/src/hwlab-node-web-observe-runner-source.ts
index ec7c3949..533244cf 100644
--- a/scripts/src/hwlab-node-web-observe-runner-source.ts
+++ b/scripts/src/hwlab-node-web-observe-runner-source.ts
@@ -1176,6 +1176,7 @@ function groupConsoleAlerts(events) {
 }
 
 function networkAlertEvent(item, promptTimes) {
+  const failureText = item.failureKind ?? item.failure ?? item.errorText ?? null;
   return {
     ts: item.ts ?? null,
     promptIndex: promptIndexForTs(promptTimes, item.ts),
@@ -1184,8 +1185,9 @@ function networkAlertEvent(item, promptTimes) {
     type: item.type ?? null,
     urlPath: urlPath(item.url),
     urlHash: item.url ? sha256(item.url) : null,
-    failureKind: item.failureKind ?? null,
-    errorTextHash: item.errorText ? sha256(item.errorText) : null
+    failureKind: failureText ? String(failureText) : null,
+    errorTextHash: failureText ? sha256(failureText) : null,
+    errorPreview: failureText ? limitText(failureText, 160) : null
   };
 }
 
@@ -1201,11 +1203,15 @@ function groupNetworkAlerts(events) {
       count: 0,
       firstAt: event.ts,
       lastAt: event.ts,
-      promptIndexes: []
+      promptIndexes: [],
+      failureKinds: [],
+      errorTextHashes: []
     };
     group.count += 1;
     group.lastAt = event.ts;
     if (event.promptIndex && !group.promptIndexes.includes(event.promptIndex)) group.promptIndexes.push(event.promptIndex);
+    if (event.failureKind && !group.failureKinds.includes(event.failureKind)) group.failureKinds.push(event.failureKind);
+    if (event.errorTextHash && !group.errorTextHashes.includes(event.errorTextHash)) group.errorTextHashes.push(event.errorTextHash);
     groups.set(key, group);
   }
   return Array.from(groups.values()).sort((a, b) => b.count - a.count || String(a.urlPath).localeCompare(String(b.urlPath)));
@@ -1623,7 +1629,7 @@ function renderMarkdown(report) {
     ? report.runtimeAlerts.networkHttpErrorsByPath.slice(0, 40).map((item) => "- HTTP " + (item.status ?? "-") + " " + item.method + " " + item.urlPath + " count=" + item.count + " prompts=" + (item.promptIndexes?.join(",") || "-") + " first=" + (item.firstAt || "-") + " last=" + (item.lastAt || "-")).join("\n")
     : "- 无 HTTP 错误。";
   const requestFailedLines = Array.isArray(report.runtimeAlerts?.networkRequestFailedByPath) && report.runtimeAlerts.networkRequestFailedByPath.length > 0
-    ? report.runtimeAlerts.networkRequestFailedByPath.slice(0, 40).map((item) => "- requestfailed " + item.method + " " + item.urlPath + " count=" + item.count + " prompts=" + (item.promptIndexes?.join(",") || "-") + " first=" + (item.firstAt || "-") + " last=" + (item.lastAt || "-")).join("\n")
+    ? report.runtimeAlerts.networkRequestFailedByPath.slice(0, 40).map((item) => "- requestfailed " + item.method + " " + item.urlPath + " count=" + item.count + " failure=" + (item.failureKinds?.slice(0, 4).join(",") || "-") + " prompts=" + (item.promptIndexes?.join(",") || "-") + " first=" + (item.firstAt || "-") + " last=" + (item.lastAt || "-")).join("\n")
     : "- 无 requestfailed。";
   const domDiagnosticLines = Array.isArray(report.runtimeAlerts?.domDiagnostics) && report.runtimeAlerts.domDiagnostics.length > 0
     ? report.runtimeAlerts.domDiagnostics.slice(0, 40).map((item) => "- #" + (item.seq ?? "-") + " " + (item.ts || "-") + " prompt=" + (item.promptIndex ?? "-") + " source=" + (item.source || "-") + " code=" + (item.diagnosticCode || "-") + " traceId=" + (item.traceId || "-") + " http=" + (item.httpStatus ?? "-") + " idle=" + (item.idleSeconds ?? "-") + " textHash=" + (item.textHash || "-") + " preview=" + escapeMarkdownCell(item.preview || "")).join("\n")