Indicate if someone followed you via a starter pack (#11320)

src/state/queries/notifications/__tests__/util.test.ts

@@ -0,0 +1,62 @@
+import {type AppBskyNotificationListNotifications} from '@atproto/api'
+import {describe, expect, it, jest} from '@jest/globals'
+
+import {groupNotifications} from '../util'
+
+jest.mock('#/state/queries/profile', () => ({precacheProfile: jest.fn()}))
+
+type Notification = AppBskyNotificationListNotifications.Notification
+
+function makeFollowNotification(
+  did: string,
+  starterPackUri?: string,
+): Notification {
+  return {
+    uri: `at://${did}/app.bsky.graph.follow/follow`,
+    cid: `cid-${did}`,
+    author: {
+      did,
+      handle: `${did}.test`,
+      displayName: did,
+      avatar: undefined,
+      associated: undefined,
+      viewer: {},
+      labels: [],
+      createdAt: '2026-07-28T12:00:00.000Z',
+    },
+    reason: 'follow',
+    record: {},
+    starterPack: starterPackUri
+      ? ({uri: starterPackUri} as Notification['starterPack'])
+      : undefined,
+    isRead: false,
+    indexedAt: '2026-07-28T12:00:00.000Z',
+  }
+}
+
+describe('groupNotifications', () => {
+  it('groups follows by starter pack', () => {
+    const packA = 'at://did:plc:alice/app.bsky.graph.starterpack/a'
+    const packB = 'at://did:plc:bob/app.bsky.graph.starterpack/b'
+
+    const grouped = groupNotifications([
+      makeFollowNotification('did:plc:a', packA),
+      makeFollowNotification('did:plc:b', packB),
+      makeFollowNotification('did:plc:c', packA),
+      makeFollowNotification('did:plc:d'),
+      makeFollowNotification('did:plc:e', packB),
+      makeFollowNotification('did:plc:f'),
+    ])
+
+    expect(
+      grouped.map(item => [
+        item.notification.author.did,
+        ...(item.additional ?? []).map(notification => notification.author.did),
+      ]),
+    ).toEqual([
+      ['did:plc:a', 'did:plc:c'],
+      ['did:plc:b', 'did:plc:e'],
+      ['did:plc:d', 'did:plc:f'],
+    ])
+  })
+})

src/state/queries/notifications/util.ts

@@ -163,6 +163,9 @@ export function groupNotifications(
           Math.abs(ts2 - ts) < MS_2DAY &&
           notif.reason === groupedNotif.notification.reason &&
           notif.reasonSubject === groupedNotif.notification.reasonSubject &&
+          (notif.reason !== 'follow' ||
+            notif.starterPack?.uri ===
+              groupedNotif.notification.starterPack?.uri) &&
           (notif.author.did !== groupedNotif.notification.author.did ||
             notif.reason === 'subscribed-post')
         ) {