diff --git a/lib/shared/farcaster/farcaster-conversation-types.js b/lib/shared/farcaster/farcaster-conversation-types.js
--- a/lib/shared/farcaster/farcaster-conversation-types.js
+++ b/lib/shared/farcaster/farcaster-conversation-types.js
@@ -15,52 +15,21 @@
 } from './farcaster-user-types.js';
 import { tShapeInexact } from '../../utils/validation-utils.js';
 
-type FarcasterUnreadReactionMessage = {
-  +fid: number,
-  +displayName: string,
-  +username: string,
-  +reaction: string,
-  +timestamp: number,
-  +reactedMessageFid: number,
-  +reactedMessage: string,
-  ...
-};
-const farcasterUnreadReactionMessageValidator: TInterface<FarcasterUnreadReactionMessage> =
-  tShapeInexact({
-    fid: t.Number,
-    displayName: t.String,
-    username: t.String,
-    reaction: t.String,
-    timestamp: t.Number,
-    reactedMessageFid: t.Number,
-    reactedMessage: t.String,
-  });
-
 type FarcasterInboxViewerContext = {
   +category: 'default' | 'archived' | 'request',
-  +lastReadAt: number,
   +muted: boolean,
   +manuallyMarkedUnread: boolean,
-  +pinned: boolean,
   +unreadCount: number,
-  +unreadMentionsCount: number,
-  +unreadReactionMessage?: FarcasterUnreadReactionMessage,
   +counterParty?: FarcasterDCUser,
-  +tag?: 'automated' | 'new-user',
   ...
 };
 const farcasterInboxViewerContextValidator: TInterface<FarcasterInboxViewerContext> =
   tShapeInexact({
     category: t.enums.of(['default', 'archived', 'request']),
-    lastReadAt: t.Number,
     muted: t.Boolean,
     manuallyMarkedUnread: t.Boolean,
-    pinned: t.Boolean,
     unreadCount: t.Number,
-    unreadMentionsCount: t.Number,
-    unreadReactionMessage: t.maybe(farcasterUnreadReactionMessageValidator),
     counterParty: t.maybe(farcasterDCUserValidator),
-    tag: t.maybe(t.enums.of(['automated', 'new-user'])),
   });
 
 export type FarcasterInboxConversation = {
@@ -69,8 +38,6 @@
   +description?: string,
   +photoUrl?: string,
   +adminFids: $ReadOnlyArray<number>,
-  +lastReadTime: number,
-  +lastMessage?: FarcasterMessage,
   +isGroup: boolean,
   +createdAt: number,
   +viewerContext: FarcasterInboxViewerContext,
@@ -83,8 +50,6 @@
     description: t.maybe(t.String),
     photoUrl: t.maybe(t.String),
     adminFids: t.list(t.Number),
-    lastReadTime: t.Number,
-    lastMessage: t.maybe(farcasterMessageValidator),
     isGroup: t.Boolean,
     createdAt: t.Number,
     viewerContext: farcasterInboxViewerContextValidator,
@@ -93,34 +58,20 @@
 type FarcasterConversationViewerContext = {
   +access: 'read' | 'read-write' | 'admin',
   +category: 'default' | 'archived' | 'request',
-  +archived: boolean,
-  +lastReadAt: number,
   +muted: boolean,
   +manuallyMarkedUnread: boolean,
-  +pinned: boolean,
   +unreadCount: number,
-  +unreadMentionsCount: number,
-  +unreadReactionMessage?: FarcasterUnreadReactionMessage,
   +counterParty?: FarcasterDCUser,
-  +tag?: 'automated' | 'new-user',
-  +inviter?: FarcasterDCUserBase,
   ...
 };
 const farcasterConversationViewerContextValidator: TInterface<FarcasterConversationViewerContext> =
   tShapeInexact({
     access: t.enums.of(['read', 'read-write', 'admin']),
     category: t.enums.of(['default', 'archived', 'request']),
-    archived: t.Boolean,
-    lastReadAt: t.Number,
     muted: t.Boolean,
     manuallyMarkedUnread: t.Boolean,
-    pinned: t.Boolean,
     unreadCount: t.Number,
-    unreadMentionsCount: t.Number,
-    unreadReactionMessage: t.maybe(farcasterUnreadReactionMessageValidator),
     counterParty: t.maybe(farcasterDCUserValidator),
-    tag: t.maybe(t.enums.of(['automated', 'new-user'])),
-    inviter: t.maybe(FarcasterDCUserBaseValidator),
   });
 
 type FarcasterConversationGroupPreferences = {
@@ -144,18 +95,11 @@
   +adminFids: $ReadOnlyArray<number>,
   +removedFids: $ReadOnlyArray<number>,
   +participants: $ReadOnlyArray<FarcasterDCUser>,
-  +lastReadTime: number,
-  +selfLastReadTime: number,
-  +lastMessage?: FarcasterMessage,
   +pinnedMessages: $ReadOnlyArray<FarcasterMessage>,
-  +hasPinnedMessages: boolean,
   +isGroup: boolean,
   +groupPreferences?: FarcasterConversationGroupPreferences,
-  +activeParticipantsCount: number,
   +createdAt: number,
   +unreadCount: number,
-  +muted: boolean,
-  +hasMention: boolean,
   +viewerContext: FarcasterConversationViewerContext,
   ...
 };
@@ -168,18 +112,11 @@
     adminFids: t.list(t.Number),
     removedFids: t.list(t.Number),
     participants: t.list(farcasterDCUserValidator),
-    lastReadTime: t.Number,
-    selfLastReadTime: t.Number,
-    lastMessage: t.maybe(farcasterMessageValidator),
     pinnedMessages: t.list(farcasterMessageValidator),
-    hasPinnedMessages: t.Boolean,
     isGroup: t.Boolean,
     groupPreferences: t.maybe(farcasterConversationGroupPreferencesValidator),
-    activeParticipantsCount: t.Number,
     createdAt: t.Number,
     unreadCount: t.Number,
-    muted: t.Boolean,
-    hasMention: t.Boolean,
     viewerContext: farcasterConversationViewerContextValidator,
   });
 
diff --git a/lib/shared/farcaster/farcaster-messages-types.js b/lib/shared/farcaster/farcaster-messages-types.js
--- a/lib/shared/farcaster/farcaster-messages-types.js
+++ b/lib/shared/farcaster/farcaster-messages-types.js
@@ -3,14 +3,8 @@
 import type { TInterface } from 'tcomb';
 import t from 'tcomb';
 
-import type {
-  FarcasterDCUserBase,
-  FarcasterMessageUserContext,
-} from './farcaster-user-types.js';
-import {
-  FarcasterDCUserBaseValidator,
-  farcasterMessageUserContextValidator,
-} from './farcaster-user-types.js';
+import type { FarcasterMessageUserContext } from './farcaster-user-types.js';
+import { farcasterMessageUserContextValidator } from './farcaster-user-types.js';
 import { tShapeInexact, tFarcasterID } from '../../utils/validation-utils.js';
 
 export const farcasterMessageTypes = Object.freeze({
@@ -37,18 +31,12 @@
 );
 
 type FarcasterMessageViewerContext = {
-  +isLastReadMessage: boolean,
-  +focused: boolean,
   +reactions: $ReadOnlyArray<string>,
-  +isOptimistic?: boolean,
   ...
 };
 const farcasterMessageViewerContextValidator: TInterface<FarcasterMessageViewerContext> =
   tShapeInexact({
-    isLastReadMessage: t.Boolean,
-    focused: t.Boolean,
     reactions: t.list(t.String),
-    isOptimistic: t.maybe(t.Boolean),
   });
 
 type FarcasterMessageMedia = {
@@ -100,19 +88,6 @@
     videos: t.maybe(t.list(farcasterMessageVideoValidator)),
   });
 
-type FarcasterMentionMetadata = {
-  +user: FarcasterDCUserBase,
-  +textIndex: number,
-  +length: number,
-  ...
-};
-const farcasterMentionMetadataValidator: TInterface<FarcasterMentionMetadata> =
-  tShapeInexact({
-    user: FarcasterDCUserBaseValidator,
-    textIndex: t.Number,
-    length: t.Number,
-  });
-
 export type FarcasterMessage = {
   +conversationId: string,
   +senderFid: number,
@@ -120,16 +95,12 @@
   +serverTimestamp: number,
   +type: FarcasterMessageType,
   +message: string,
-  +hasMention: boolean,
   +reactions: $ReadOnlyArray<FarcasterReaction>,
   +metadata?: FarcasterMessageMetadata,
   +viewerContext?: FarcasterMessageViewerContext,
   +isPinned: boolean,
   +isDeleted: boolean,
-  +senderContext: FarcasterMessageUserContext,
   +actionTargetUserContext?: FarcasterMessageUserContext,
-  +isProgrammatic?: boolean,
-  +mentions?: $ReadOnlyArray<FarcasterMentionMetadata>,
   +inReplyTo?: FarcasterMessage,
   ...
 };
@@ -148,16 +119,12 @@
     'rich_announcement',
   ]),
   message: t.String,
-  hasMention: t.Boolean,
   reactions: t.list(farcasterReactionValidator),
   metadata: t.maybe(farcasterMessageMetadataValidator),
   viewerContext: t.maybe(farcasterMessageViewerContextValidator),
   isPinned: t.Boolean,
   isDeleted: t.Boolean,
-  senderContext: farcasterMessageUserContextValidator,
   actionTargetUserContext: t.maybe(farcasterMessageUserContextValidator),
-  isProgrammatic: t.maybe(t.Boolean),
-  mentions: t.maybe(t.list(farcasterMentionMetadataValidator)),
 });
 
 export { farcasterMessageValidator };