diff --git a/lib/components/chat-mention-provider.react.js b/lib/components/chat-mention-provider.react.js
--- a/lib/components/chat-mention-provider.react.js
+++ b/lib/components/chat-mention-provider.react.js
@@ -5,7 +5,10 @@
 import genesis from '../facts/genesis.js';
 import { threadInfoSelector } from '../selectors/thread-selectors.js';
 import SentencePrefixSearchIndex from '../shared/sentence-prefix-search-index.js';
-import type { MinimallyEncodedThreadInfo } from '../types/minimally-encoded-thread-permissions-types.js';
+import type {
+  MinimallyEncodedResolvedThreadInfo,
+  MinimallyEncodedThreadInfo,
+} from '../types/minimally-encoded-thread-permissions-types.js';
 import { threadTypes } from '../types/thread-types-enum.js';
 import type {
   ChatMentionCandidates,
@@ -73,7 +76,7 @@
 }
 
 function getChatMentionCandidates(threadInfos: {
-  +[id: string]: ResolvedThreadInfo,
+  +[id: string]: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
 }): {
   chatMentionCandidatesObj: ChatMentionCandidatesObj,
   communityThreadIDForGenesisThreads: { +[id: string]: string },
diff --git a/lib/permissions/minimally-encoded-thread-permissions-validators.js b/lib/permissions/minimally-encoded-thread-permissions-validators.js
--- a/lib/permissions/minimally-encoded-thread-permissions-validators.js
+++ b/lib/permissions/minimally-encoded-thread-permissions-validators.js
@@ -9,6 +9,7 @@
   MinimallyEncodedMemberInfo,
   MinimallyEncodedRawThreadInfo,
   MinimallyEncodedRelativeMemberInfo,
+  MinimallyEncodedResolvedThreadInfo,
   MinimallyEncodedRoleInfo,
   MinimallyEncodedThreadCurrentUserInfo,
   MinimallyEncodedThreadInfo,
@@ -59,6 +60,12 @@
     currentUser: minimallyEncodedThreadCurrentUserInfoValidator,
   });
 
+const minimallyEncodedResolvedThreadInfoValidator: TInterface<MinimallyEncodedResolvedThreadInfo> =
+  tShape<MinimallyEncodedResolvedThreadInfo>({
+    ...minimallyEncodedThreadInfoValidator.meta.props,
+    uiName: t.String,
+  });
+
 const minimallyEncodedRawThreadInfoValidator: TInterface<MinimallyEncodedRawThreadInfo> =
   tShape<MinimallyEncodedRawThreadInfo>({
     ...rawThreadInfoValidator.meta.props,
@@ -74,5 +81,6 @@
   minimallyEncodedMemberInfoValidator,
   minimallyEncodedRelativeMemberInfoValidator,
   minimallyEncodedThreadInfoValidator,
+  minimallyEncodedResolvedThreadInfoValidator,
   minimallyEncodedRawThreadInfoValidator,
 };
diff --git a/lib/shared/markdown.js b/lib/shared/markdown.js
--- a/lib/shared/markdown.js
+++ b/lib/shared/markdown.js
@@ -6,7 +6,10 @@
   markdownUserMentionRegex,
   decodeChatMentionText,
 } from './mention-utils.js';
-import type { MinimallyEncodedRelativeMemberInfo } from '../types/minimally-encoded-thread-permissions-types.js';
+import type {
+  MinimallyEncodedRelativeMemberInfo,
+  MinimallyEncodedResolvedThreadInfo,
+} from '../types/minimally-encoded-thread-permissions-types.js';
 import type {
   RelativeMemberInfo,
   ResolvedThreadInfo,
@@ -259,7 +262,7 @@
   chatMentionCandidates: ChatMentionCandidates,
   capture: Capture,
 ): {
-  threadInfo: ?ResolvedThreadInfo,
+  threadInfo: ?ResolvedThreadInfo | ?MinimallyEncodedResolvedThreadInfo,
   content: string,
   hasAccessToChat: boolean,
 } {
diff --git a/lib/shared/mention-utils.js b/lib/shared/mention-utils.js
--- a/lib/shared/mention-utils.js
+++ b/lib/shared/mention-utils.js
@@ -4,6 +4,7 @@
 import SentencePrefixSearchIndex from './sentence-prefix-search-index.js';
 import { threadOtherMembers } from './thread-utils.js';
 import { stringForUserExplicit } from './user-utils.js';
+import type { MinimallyEncodedResolvedThreadInfo } from '../types/minimally-encoded-thread-permissions-types.js';
 import { threadTypes } from '../types/thread-types-enum.js';
 import type {
   ThreadInfo,
@@ -30,7 +31,7 @@
 
 type MentionTypeaheadChatSuggestionItem = {
   +type: 'chat',
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
 };
 
 export type MentionTypeaheadSuggestionItem =
@@ -70,7 +71,9 @@
   return text.replace(/\\]/g, ']');
 }
 
-function getRawChatMention(threadInfo: ResolvedThreadInfo): string {
+function getRawChatMention(
+  threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+): string {
   return `@[[${threadInfo.id}:${encodeChatMentionText(threadInfo.uiName)}]]`;
 }
 
diff --git a/lib/types/filter-types.js b/lib/types/filter-types.js
--- a/lib/types/filter-types.js
+++ b/lib/types/filter-types.js
@@ -2,6 +2,7 @@
 
 import t, { type TUnion } from 'tcomb';
 
+import type { MinimallyEncodedResolvedThreadInfo } from './minimally-encoded-thread-permissions-types.js';
 import type { ResolvedThreadInfo } from './thread-types.js';
 import { tID, tShape, tString } from '../utils/validation-utils.js';
 
@@ -40,6 +41,6 @@
 };
 
 export type FilterThreadInfo = {
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +numVisibleEntries: number,
 };
diff --git a/lib/types/minimally-encoded-thread-permissions-types.js b/lib/types/minimally-encoded-thread-permissions-types.js
--- a/lib/types/minimally-encoded-thread-permissions-types.js
+++ b/lib/types/minimally-encoded-thread-permissions-types.js
@@ -189,6 +189,11 @@
   };
 };
 
+export type MinimallyEncodedResolvedThreadInfo = $ReadOnly<{
+  ...MinimallyEncodedThreadInfo,
+  +uiName: string,
+}>;
+
 export {
   minimallyEncodeRoleInfo,
   decodeMinimallyEncodedRoleInfo,
diff --git a/lib/types/thread-types.js b/lib/types/thread-types.js
--- a/lib/types/thread-types.js
+++ b/lib/types/thread-types.js
@@ -15,6 +15,7 @@
   MessageTruncationStatuses,
   RawMessageInfo,
 } from './message-types.js';
+import type { MinimallyEncodedResolvedThreadInfo } from './minimally-encoded-thread-permissions-types.js';
 import {
   type ThreadSubscription,
   threadSubscriptionValidator,
@@ -461,7 +462,9 @@
 
 export type ThreadStoreThreadInfos = RawThreadInfos;
 
-export type ChatMentionCandidates = { +[id: string]: ResolvedThreadInfo };
+export type ChatMentionCandidates = {
+  +[id: string]: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+};
 export type ChatMentionCandidatesObj = {
   +[id: string]: ChatMentionCandidates,
 };
diff --git a/native/avatars/edit-thread-avatar.react.js b/native/avatars/edit-thread-avatar.react.js
--- a/native/avatars/edit-thread-avatar.react.js
+++ b/native/avatars/edit-thread-avatar.react.js
@@ -6,7 +6,10 @@
 import { ActivityIndicator, TouchableOpacity, View } from 'react-native';
 
 import { EditThreadAvatarContext } from 'lib/components/base-edit-thread-avatar-provider.react.js';
-import type { MinimallyEncodedRawThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
+import type {
+  MinimallyEncodedRawThreadInfo,
+  MinimallyEncodedThreadInfo,
+} from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { RawThreadInfo, ThreadInfo } from 'lib/types/thread-types.js';
 
 import {
@@ -26,7 +29,7 @@
   +threadInfo:
     | RawThreadInfo
     | ThreadInfo
-    | MinimallyEncodedRawThreadInfo
+    | MinimallyEncodedThreadInfo
     | MinimallyEncodedRawThreadInfo,
   +disabled?: boolean,
 };
diff --git a/native/avatars/thread-avatar.react.js b/native/avatars/thread-avatar.react.js
--- a/native/avatars/thread-avatar.react.js
+++ b/native/avatars/thread-avatar.react.js
@@ -10,6 +10,7 @@
 import type { AvatarSize } from 'lib/types/avatar-types.js';
 import type {
   MinimallyEncodedRawThreadInfo,
+  MinimallyEncodedResolvedThreadInfo,
   MinimallyEncodedThreadInfo,
 } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
@@ -28,7 +29,8 @@
     | ThreadInfo
     | ResolvedThreadInfo
     | MinimallyEncodedRawThreadInfo
-    | MinimallyEncodedThreadInfo,
+    | MinimallyEncodedThreadInfo
+    | MinimallyEncodedResolvedThreadInfo,
   +size: AvatarSize,
 };
 
diff --git a/native/chat/settings/delete-thread.react.js b/native/chat/settings/delete-thread.react.js
--- a/native/chat/settings/delete-thread.react.js
+++ b/native/chat/settings/delete-thread.react.js
@@ -25,6 +25,10 @@
   getThreadsToDeleteText,
 } from 'lib/shared/thread-utils.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
+import type {
+  MinimallyEncodedResolvedThreadInfo,
+  MinimallyEncodedThreadInfo,
+} from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type {
   ThreadInfo,
   ResolvedThreadInfo,
@@ -49,7 +53,7 @@
 import type { ChatNavigationProp } from '../chat.react.js';
 
 export type DeleteThreadParams = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 type BaseProps = {
@@ -59,7 +63,7 @@
 type Props = {
   ...BaseProps,
   // Redux state
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +shouldUseDeleteConfirmationAlert: boolean,
   +loadingStatus: LoadingStatus,
   +colors: Colors,
diff --git a/native/chat/settings/thread-settings-avatar.react.js b/native/chat/settings/thread-settings-avatar.react.js
--- a/native/chat/settings/thread-settings-avatar.react.js
+++ b/native/chat/settings/thread-settings-avatar.react.js
@@ -3,13 +3,14 @@
 import * as React from 'react';
 import { View } from 'react-native';
 
+import type { MinimallyEncodedResolvedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ResolvedThreadInfo } from 'lib/types/thread-types.js';
 
 import EditThreadAvatar from '../../avatars/edit-thread-avatar.react.js';
 import { useStyles } from '../../themes/colors.js';
 
 type Props = {
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +canChangeSettings: boolean,
 };
 function ThreadSettingsAvatar(props: Props): React.Node {
diff --git a/native/chat/settings/thread-settings-delete-thread.react.js b/native/chat/settings/thread-settings-delete-thread.react.js
--- a/native/chat/settings/thread-settings-delete-thread.react.js
+++ b/native/chat/settings/thread-settings-delete-thread.react.js
@@ -3,6 +3,7 @@
 import * as React from 'react';
 import { Text, View } from 'react-native';
 
+import type { MinimallyEncodedResolvedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ResolvedThreadInfo } from 'lib/types/thread-types.js';
 
 import type { ThreadSettingsNavigate } from './thread-settings.react.js';
@@ -12,7 +13,7 @@
 import type { ViewStyle } from '../../types/styles.js';
 
 type Props = {
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +navigate: ThreadSettingsNavigate,
   +buttonStyle: ViewStyle,
 };
diff --git a/native/chat/settings/thread-settings-name.react.js b/native/chat/settings/thread-settings-name.react.js
--- a/native/chat/settings/thread-settings-name.react.js
+++ b/native/chat/settings/thread-settings-name.react.js
@@ -15,6 +15,7 @@
 } from 'lib/actions/thread-actions.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
+import type { MinimallyEncodedResolvedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import {
   type ResolvedThreadInfo,
   type ChangeThreadSettingsPayload,
@@ -36,7 +37,7 @@
 import Alert from '../../utils/alert.js';
 
 type BaseProps = {
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +nameEditValue: ?string,
   +setNameEditValue: (value: ?string, callback?: () => void) => void,
   +canChangeSettings: boolean,
diff --git a/native/chat/settings/thread-settings.react.js b/native/chat/settings/thread-settings.react.js
--- a/native/chat/settings/thread-settings.react.js
+++ b/native/chat/settings/thread-settings.react.js
@@ -28,7 +28,10 @@
   threadIsChannel,
 } from 'lib/shared/thread-utils.js';
 import threadWatcher from 'lib/shared/thread-watcher.js';
-import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
+import type {
+  MinimallyEncodedResolvedThreadInfo,
+  MinimallyEncodedThreadInfo,
+} from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { RelationshipButton } from 'lib/types/relationship-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
@@ -131,20 +134,20 @@
   | {
       +itemType: 'avatar',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +canChangeSettings: boolean,
     }
   | {
       +itemType: 'name',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +nameEditValue: ?string,
       +canChangeSettings: boolean,
     }
   | {
       +itemType: 'color',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +colorEditValue: string,
       +canChangeSettings: boolean,
       +navigate: ThreadSettingsNavigate,
@@ -153,7 +156,7 @@
   | {
       +itemType: 'description',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +descriptionEditValue: ?string,
       +descriptionTextHeight: ?number,
       +canChangeSettings: boolean,
@@ -167,17 +170,17 @@
   | {
       +itemType: 'visibility',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
     }
   | {
       +itemType: 'pushNotifs',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
     }
   | {
       +itemType: 'homeNotifs',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
     }
   | {
       +itemType: 'seeMore',
@@ -221,14 +224,14 @@
   | {
       +itemType: 'promoteSidebar' | 'leaveThread' | 'deleteThread',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +navigate: ThreadSettingsNavigate,
       +buttonStyle: ViewStyle,
     }
   | {
       +itemType: 'editRelationship',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +navigate: ThreadSettingsNavigate,
       +buttonStyle: ViewStyle,
       +relationshipButton: RelationshipButton,
diff --git a/native/components/thread-list-thread.react.js b/native/components/thread-list-thread.react.js
--- a/native/components/thread-list-thread.react.js
+++ b/native/components/thread-list-thread.react.js
@@ -2,6 +2,7 @@
 
 import * as React from 'react';
 
+import type { MinimallyEncodedResolvedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo, ResolvedThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 
@@ -22,7 +23,7 @@
 };
 type Props = {
   ...SharedProps,
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +colors: Colors,
   +styles: typeof unboundStyles,
 };
diff --git a/web/calendar/entry.react.js b/web/calendar/entry.react.js
--- a/web/calendar/entry.react.js
+++ b/web/calendar/entry.react.js
@@ -36,6 +36,7 @@
   type CalendarQuery,
 } from 'lib/types/entry-types.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
+import type { MinimallyEncodedResolvedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { Dispatch } from 'lib/types/redux-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import type { ResolvedThreadInfo } from 'lib/types/thread-types.js';
@@ -65,7 +66,7 @@
 };
 type Props = {
   ...BaseProps,
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +loggedIn: boolean,
   +calendarQuery: () => CalendarQuery,
   +online: boolean,
diff --git a/web/markdown/markdown-chat-mention.react.js b/web/markdown/markdown-chat-mention.react.js
--- a/web/markdown/markdown-chat-mention.react.js
+++ b/web/markdown/markdown-chat-mention.react.js
@@ -2,13 +2,14 @@
 
 import * as React from 'react';
 
+import type { MinimallyEncodedResolvedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ResolvedThreadInfo } from 'lib/types/thread-types.js';
 
 import css from './markdown.css';
 import { useOnClickThread } from '../selectors/thread-selectors.js';
 
 type MarkdownChatMentionProps = {
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +hasAccessToChat: boolean,
   +text: string,
 };
diff --git a/web/modals/history/history-entry.react.js b/web/modals/history/history-entry.react.js
--- a/web/modals/history/history-entry.react.js
+++ b/web/modals/history/history-entry.react.js
@@ -19,6 +19,7 @@
   type CalendarQuery,
 } from 'lib/types/entry-types.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
+import type { MinimallyEncodedResolvedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ResolvedThreadInfo } from 'lib/types/thread-types.js';
 import type { UserInfo } from 'lib/types/user-types.js';
 import {
@@ -39,7 +40,7 @@
 };
 type Props = {
   ...BaseProps,
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   +loggedIn: boolean,
   +restoreLoadingStatus: LoadingStatus,
   +calendarQuery: () => CalendarQuery,