diff --git a/lib/permissions/thread-permissions.js b/lib/permissions/thread-permissions.js
--- a/lib/permissions/thread-permissions.js
+++ b/lib/permissions/thread-permissions.js
@@ -346,17 +346,6 @@
   };
 }
 
-const nonCommunityVoicedPermissions = {
-  [threadPermissions.VOICED]: true,
-  [threadPermissions.EDIT_ENTRIES]: true,
-  [threadPermissions.EDIT_THREAD_NAME]: true,
-  [threadPermissions.EDIT_THREAD_COLOR]: true,
-  [threadPermissions.EDIT_THREAD_DESCRIPTION]: true,
-  [threadPermissions.EDIT_THREAD_AVATAR]: true,
-  [threadPermissions.CREATE_SUBCHANNELS]: true,
-  [threadPermissions.ADD_MEMBERS]: true,
-};
-
 function getRolePermissionBlobs(threadType: ThreadType): RolePermissionBlobs {
   if (threadTypeIsThick(threadType)) {
     const thickThreadType = assertThickThreadType(threadType);
@@ -371,15 +360,6 @@
   if (thinThreadType === threadTypes.SIDEBAR) {
     const memberPermissions = {
       [threadPermissions.VOICED]: true,
-      [threadPermissions.REACT_TO_MESSAGE]: true,
-      [threadPermissions.EDIT_MESSAGE]: true,
-      [threadPermissions.EDIT_THREAD_NAME]: true,
-      [threadPermissions.EDIT_THREAD_COLOR]: true,
-      [threadPermissions.EDIT_THREAD_DESCRIPTION]: true,
-      [threadPermissions.EDIT_THREAD_AVATAR]: true,
-      [threadPermissions.ADD_MEMBERS]: true,
-      [threadPermissions.EDIT_PERMISSIONS]: true,
-      [threadPermissions.REMOVE_MEMBERS]: true,
       [threadPermissions.LEAVE_THREAD]: true,
     };
     return {
@@ -396,12 +376,7 @@
       [threadPermissions.KNOW_OF]: true,
       [threadPermissions.VISIBLE]: true,
       [threadPermissions.VOICED]: true,
-      [threadPermissions.REACT_TO_MESSAGE]: true,
-      [threadPermissions.EDIT_MESSAGE]: true,
-      [threadPermissions.EDIT_THREAD_COLOR]: true,
-      [threadPermissions.EDIT_THREAD_DESCRIPTION]: true,
       [threadPermissions.CREATE_SIDEBARS]: true,
-      [threadPermissions.EDIT_ENTRIES]: true,
       [openDescendantKnowOf]: true,
       [openDescendantVisible]: true,
       [openChildJoinThread]: true,
@@ -417,12 +392,6 @@
         [threadPermissions.KNOW_OF]: true,
         [threadPermissions.VISIBLE]: true,
         [threadPermissions.VOICED]: true,
-        [threadPermissions.REACT_TO_MESSAGE]: true,
-        [threadPermissions.EDIT_MESSAGE]: true,
-        [threadPermissions.EDIT_ENTRIES]: true,
-        [threadPermissions.EDIT_THREAD_NAME]: true,
-        [threadPermissions.EDIT_THREAD_COLOR]: true,
-        [threadPermissions.EDIT_THREAD_DESCRIPTION]: true,
         [threadPermissions.CREATE_SIDEBARS]: true,
         [openDescendantKnowOf]: true,
         [openDescendantVisible]: true,
@@ -437,8 +406,6 @@
   const subthreadBasePermissions = {
     [threadPermissions.KNOW_OF]: true,
     [threadPermissions.VISIBLE]: true,
-    [threadPermissions.REACT_TO_MESSAGE]: true,
-    [threadPermissions.EDIT_MESSAGE]: true,
     [threadPermissions.CREATE_SIDEBARS]: true,
     [threadPermissions.LEAVE_THREAD]: true,
     [openDescendantKnowOf]: true,
@@ -452,10 +419,8 @@
     thinThreadType === threadTypes.COMMUNITY_SECRET_SUBTHREAD
   ) {
     const memberPermissions = {
-      [threadPermissions.REMOVE_MEMBERS]: true,
-      [threadPermissions.EDIT_PERMISSIONS]: true,
       ...subthreadBasePermissions,
-      ...nonCommunityVoicedPermissions,
+      [threadPermissions.VOICED]: true,
     };
     return {
       Members: memberPermissions,
diff --git a/lib/types/thread-permission-types.js b/lib/types/thread-permission-types.js
--- a/lib/types/thread-permission-types.js
+++ b/lib/types/thread-permission-types.js
@@ -150,7 +150,11 @@
   userSurfacedPermission: userSurfacedPermissions.EDIT_CALENDAR,
 };
 const editEntries = threadPermissions.EDIT_ENTRIES;
-const editCalendarPermissions = new Set([editEntries]);
+const descendantEditEntries =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.EDIT_ENTRIES;
+const editCalendarPermissions = new Set([editEntries, descendantEditEntries]);
 
 const knowOfSecretChannelsPermission = {
   title: 'Know of secret channels',
@@ -201,16 +205,42 @@
   userSurfacedPermission: userSurfacedPermissions.CREATE_AND_EDIT_CHANNELS,
 };
 const editThreadName = threadPermissions.EDIT_THREAD_NAME;
+const descendantEditThreadName =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.EDIT_THREAD_NAME;
 const editThreadDescription = threadPermissions.EDIT_THREAD_DESCRIPTION;
+const descendantEditThreadDescription =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.EDIT_THREAD_DESCRIPTION;
 const editThreadColor = threadPermissions.EDIT_THREAD_COLOR;
+const descendantEditThreadColor =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.EDIT_THREAD_COLOR;
 const createSubchannels = threadPermissions.CREATE_SUBCHANNELS;
+const descendantCreateSubchannels =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionFilterPrefixes.TOP_LEVEL +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.CREATE_SUBCHANNELS;
 const editThreadAvatar = threadPermissions.EDIT_THREAD_AVATAR;
+const descendantEditThreadAvatar =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.EDIT_THREAD_AVATAR;
 const createAndEditChannelsPermissions = new Set([
   editThreadName,
+  descendantEditThreadName,
   editThreadDescription,
+  descendantEditThreadDescription,
   editThreadColor,
+  descendantEditThreadColor,
   createSubchannels,
+  descendantCreateSubchannels,
   editThreadAvatar,
+  descendantEditThreadAvatar,
 ]);
 
 const deleteChannelsPermission = {
@@ -219,18 +249,25 @@
   userSurfacedPermission: userSurfacedPermissions.DELETE_CHANNELS,
 };
 const deleteThread = threadPermissions.DELETE_THREAD;
-const deleteChannelsPermissions = new Set([deleteThread]);
+const descendantDeleteThread =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.DELETE_THREAD;
+const deleteChannelsPermissions = new Set([
+  deleteThread,
+  descendantDeleteThread,
+]);
 
 const addMembersPermission = {
   title: 'Add members',
   description: 'Allows members to add other members to channels',
   userSurfacedPermission: userSurfacedPermissions.ADD_MEMBERS,
 };
-const childOpenAddMembers =
-  threadPermissionPropagationPrefixes.CHILD +
-  threadPermissionFilterPrefixes.OPEN +
+const descendantAddMembers =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
   threadPermissions.ADD_MEMBERS;
-const addMembersPermissions = new Set([childOpenAddMembers]);
+const addMembersPermissions = new Set([descendantAddMembers]);
 
 const removeMembersPermission = {
   title: 'Remove members',
@@ -238,7 +275,14 @@
   userSurfacedPermission: userSurfacedPermissions.REMOVE_MEMBERS,
 };
 const removeMembers = threadPermissions.REMOVE_MEMBERS;
-const removeMembersPermissions = new Set([removeMembers]);
+const descendantRemoveMembers =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.REMOVE_MEMBERS;
+const removeMembersPermissions = new Set([
+  removeMembers,
+  descendantRemoveMembers,
+]);
 
 const changeRolePermission = {
   title: 'Change roles',
@@ -254,7 +298,14 @@
   userSurfacedPermission: userSurfacedPermissions.EDIT_VISIBILITY,
 };
 const editPermissions = threadPermissions.EDIT_PERMISSIONS;
-const editVisibilityPermissions = new Set([editPermissions]);
+const descendantEditPermissions =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.EDIT_PERMISSIONS;
+const editVisibilityPermissions = new Set([
+  editPermissions,
+  descendantEditPermissions,
+]);
 
 const managePinsPermission = {
   title: 'Manage pins',
@@ -262,7 +313,11 @@
   userSurfacedPermission: userSurfacedPermissions.MANAGE_PINS,
 };
 const managePins = threadPermissions.MANAGE_PINS;
-const managePinsPermissions = new Set([managePins]);
+const descendantManagePins =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.MANAGE_PINS;
+const managePinsPermissions = new Set([managePins, descendantManagePins]);
 
 const reactToMessagePermission = {
   title: 'React to messages',
@@ -270,7 +325,14 @@
   userSurfacedPermission: userSurfacedPermissions.REACT_TO_MESSAGES,
 };
 const reactToMessage = threadPermissions.REACT_TO_MESSAGE;
-const reactToMessagePermissions = new Set([reactToMessage]);
+const descendantReactToMessage =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.REACT_TO_MESSAGE;
+const reactToMessagePermissions = new Set([
+  reactToMessage,
+  descendantReactToMessage,
+]);
 
 const editMessagePermission = {
   title: 'Edit messages',
@@ -278,7 +340,11 @@
   userSurfacedPermission: userSurfacedPermissions.EDIT_MESSAGES,
 };
 const editMessage = threadPermissions.EDIT_MESSAGE;
-const editMessagePermissions = new Set([editMessage]);
+const descendantEditMessage =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.EDIT_MESSAGE;
+const editMessagePermissions = new Set([editMessage, descendantEditMessage]);
 
 const manageInviteLinksPermission = {
   title: 'Manage invite links',
@@ -286,7 +352,14 @@
   userSurfacedPermission: userSurfacedPermissions.MANAGE_INVITE_LINKS,
 };
 const manageInviteLinks = threadPermissions.MANAGE_INVITE_LINKS;
-const manageInviteLinksPermissions = new Set([manageInviteLinks]);
+const descendantManageInviteLinks =
+  threadPermissionPropagationPrefixes.DESCENDANT +
+  threadPermissionMembershipPrefixes.MEMBER +
+  threadPermissions.MANAGE_INVITE_LINKS;
+const manageInviteLinksPermissions = new Set([
+  manageInviteLinks,
+  descendantManageInviteLinks,
+]);
 
 const manageFarcasterChannelTagsPermission = {
   title: 'Manage Farcaster channel tags',