Backfill short home feed agent responses

src/home/home-feed-agent.ts

@@ -141,6 +141,33 @@ function normalizeAgentNotification(
   });
 }
 
+function notificationKey(notification: AgentHomeNotification) {
+  return [
+    notification.moduleId,
+    notification.href,
+    notification.title.trim().toLowerCase(),
+  ].join(":");
+}
+
+function completeNotificationsWithSeeds(
+  notifications: AgentHomeNotification[],
+  seeds: Array<Omit<HomeNotification, "id" | "createdAt"> & { moduleId: HomeModuleId }>,
+) {
+  const completed = [...notifications];
+  const seen = new Set(completed.map(notificationKey));
+
+  for (const seed of seeds) {
+    if (completed.length >= 6) break;
+    const candidate = normalizeAgentNotification(seed, seeds);
+    const key = notificationKey(candidate);
+    if (seen.has(key)) continue;
+    completed.push(candidate);
+    seen.add(key);
+  }
+
+  return feedSchema.parse({ notifications: completed }).notifications;
+}
+
 function parseJsonObject(text: string) {
   const cleaned = text.trim().replace(/^```(?:json)?/i, "").replace(/```$/i, "").trim();
   try {
@@ -183,9 +210,10 @@ export async function refineHomeNotificationsWithAgent(input: {
       });
 
       const parsed = rawFeedSchema.parse(parseJsonObject(result.text));
-      const notifications = feedSchema.parse({
-        notifications: parsed.notifications.map((item) => normalizeAgentNotification(item, input.seeds)),
-      }).notifications;
+      const notifications = completeNotificationsWithSeeds(
+        parsed.notifications.map((item) => normalizeAgentNotification(item, input.seeds)),
+        input.seeds,
+      );
       const now = new Date().toISOString();
       return notifications.map((n, index) => ({
         ...n,