fix(desktop): npub identity displays for mention, member, and workflow surfaces

desktop/src/app/useTrayMenu.ts

@@ -10,7 +10,7 @@ import {
   useManagedAgentsQuery,
   useRelayAgentsQuery,
 } from "@/features/agents/hooks";
-import { normalizePubkey, truncatePubkey } from "@/shared/lib/pubkey";
+import { normalizePubkey, truncateNpub } from "@/shared/lib/pubkey";
 import { useNow } from "@/shared/lib/useNow";
 import { formatElapsed } from "@/features/agents/ui/agentSessionUtils";
 import type { Channel } from "@/shared/api/types";
@@ -72,7 +72,7 @@ export function useTrayMenu({
           activityId: `${channelTurn.channelId}:${normalizePubkey(pubkey)}`,
           agentName:
             agentNames.get(normalizePubkey(pubkey)) ??
-            `Agent ${truncatePubkey(pubkey)}`,
+            `Agent ${truncateNpub(pubkey)}`,
           channelId: channelTurn.channelId,
           channelName:
             channelNames.get(channelTurn.channelId) ?? "Unknown channel",

desktop/src/features/agents/ui/PersonaShareRecipients.tsx

@@ -15,7 +15,7 @@ import { ProfileAvatar } from "@/features/profile/ui/ProfileAvatar";
 import { SelectedRecipientChip } from "@/features/profile/ui/SelectedRecipientChip";
 import { useIdentityQuery } from "@/shared/api/hooks";
 import type { UserSearchResult } from "@/shared/api/types";
-import { normalizePubkey, truncatePubkey } from "@/shared/lib/pubkey";
+import { normalizePubkey, truncateNpub } from "@/shared/lib/pubkey";
 import { Popover, PopoverAnchor, PopoverContent } from "@/shared/ui/popover";
 import { Skeleton } from "@/shared/ui/skeleton";
 
@@ -25,7 +25,7 @@ export function formatShareRecipientName(user: UserSearchResult) {
   return (
     user.displayName?.trim() ||
     user.nip05Handle?.trim() ||
-    truncatePubkey(user.pubkey)
+    truncateNpub(user.pubkey)
   );
 }
 

desktop/src/features/channels/lib/memberUtils.ts

@@ -1,5 +1,5 @@
 import type { ChannelMember } from "@/shared/api/types";
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 
 export const roleOrder: Record<ChannelMember["role"], number> = {
   owner: 0,
@@ -17,7 +17,7 @@ export function formatMemberName(
     return "You";
   }
 
-  return member.displayName ?? truncatePubkey(member.pubkey);
+  return member.displayName ?? truncateNpub(member.pubkey);
 }
 
 export function compareMembersByRole(

desktop/src/features/channels/ui/AddMemberSearchResultRow.tsx

@@ -3,7 +3,7 @@ import { Bot } from "lucide-react";
 import type { UserSearchResult } from "@/shared/api/types";
 import { Button } from "@/shared/ui/button";
 import { cn } from "@/shared/lib/cn";
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 import { UserAvatar } from "@/shared/ui/UserAvatar";
 
 const MEMBER_ROW_INSET_DIVIDER_CLASS =
@@ -13,7 +13,7 @@ export function formatAddCandidateName(user: UserSearchResult) {
   return (
     user.displayName?.trim() ||
     user.nip05Handle?.trim() ||
-    truncatePubkey(user.pubkey)
+    truncateNpub(user.pubkey)
   );
 }
 
@@ -67,7 +67,7 @@ export function AddMemberSearchResultRow({
               />
             </div>
             <span className="block truncate font-mono text-2xs text-muted-foreground">
-              {truncatePubkey(user.pubkey)}
+              {truncateNpub(user.pubkey)}
             </span>
             {ownerLabel ? (
               <span className="block truncate text-xs text-muted-foreground">

desktop/src/features/channels/ui/ChannelMemberInviteCard.tsx

@@ -2,7 +2,7 @@ import { Search, UserPlus, X } from "lucide-react";
 import * as React from "react";
 
 import { parsePubkeyInput } from "@/shared/lib/nostrUtils";
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 import { PubKey } from "@/shared/ui/PubKey";
 import { useIsArchivedPredicate } from "@/features/identity-archive/hooks";
 import { useUserSearchQuery } from "@/features/profile/hooks";
@@ -19,7 +19,7 @@ function formatSearchUserName(user: UserSearchResult) {
   return (
     user.displayName?.trim() ||
     user.nip05Handle?.trim() ||
-    truncatePubkey(user.pubkey)
+    truncateNpub(user.pubkey)
   );
 }
 
@@ -270,11 +270,11 @@ export function ChannelMemberInviteCard({
                       <div className="flex min-w-0 items-center gap-2">
                         <UserAvatar
                           avatarUrl={null}
-                          displayName={truncatePubkey(directInvitee.pubkey)}
+                          displayName={truncateNpub(directInvitee.pubkey)}
                           size="xs"
                         />
                         <p className="truncate text-sm font-medium leading-5">
-                          {truncatePubkey(directInvitee.pubkey)}
+                          {truncateNpub(directInvitee.pubkey)}
                         </p>
                         <span className="shrink-0 text-xs text-muted-foreground">
                           by public key
@@ -370,7 +370,7 @@ export function ChannelMemberInviteCard({
         <div className="space-y-1 text-sm text-destructive">
           {submissionErrors.map((error) => (
             <p key={`${error.pubkey}-${error.error}`}>
-              {truncatePubkey(error.pubkey)}: {error.error}
+              {truncateNpub(error.pubkey)}: {error.error}
             </p>
           ))}
         </div>

desktop/src/features/channels/ui/MembersSidebar.tsx

@@ -49,7 +49,7 @@ import {
 } from "@/shared/ui/dialog";
 import { useProfilePanel } from "@/shared/context/ProfilePanelContext";
 import { useFeedbackToasts } from "@/shared/hooks/useToastEffect";
-import { normalizePubkey, truncatePubkey } from "@/shared/lib/pubkey";
+import { normalizePubkey, truncateNpub } from "@/shared/lib/pubkey";
 import {
   MODAL_SEARCH_INPUT_CLASS,
   MODAL_SEARCH_SHELL_CLASS,
@@ -641,7 +641,7 @@ export function MembersSidebar({
         managedAgentRuntime={managedAgentRuntime}
         member={member}
         memberIsBot={memberIsBot}
-        memberAvatarLabel={member.displayName ?? truncatePubkey(member.pubkey)}
+        memberAvatarLabel={member.displayName ?? truncateNpub(member.pubkey)}
         memberLabel={formatMemberName(member, currentPubkey)}
         moderationState={moderationStateByPubkey.get(
           normalizePubkey(member.pubkey),
@@ -886,7 +886,7 @@ export function MembersSidebar({
               <div className="mt-4 space-y-1 text-sm text-destructive">
                 {inviteSubmissionErrors.map((error) => (
                   <p key={`${error.pubkey}-${error.error}`}>
-                    {truncatePubkey(error.pubkey)}: {error.error}
+                    {truncateNpub(error.pubkey)}: {error.error}
                   </p>
                 ))}
               </div>

desktop/src/features/channels/ui/MembersSidebarMemberCard.tsx

@@ -27,7 +27,7 @@ import {
   MANAGED_AGENT_PAIR_ACTION_LABELS,
   type ManagedAgentPairAction,
 } from "@/features/agents/managedAgentRuntimeStatus";
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 import type {
   ChannelMember,
   ManagedAgent,
@@ -195,7 +195,7 @@ export function MembersSidebarMemberCard({
               </div>
               <span className="absolute inset-0 flex items-center opacity-0 transition-opacity duration-150 ease-out group-hover/member:opacity-100 group-focus-within/member:opacity-100">
                 <span className="truncate font-mono text-sm text-muted-foreground">
-                  {truncatePubkey(member.pubkey)}
+                  {truncateNpub(member.pubkey)}
                 </span>
               </span>
             </div>

desktop/src/features/channels/ui/useChannelAgentSessions.ts

@@ -8,7 +8,7 @@ import type {
   RelayAgent,
 } from "@/shared/api/types";
 import { usePanelReturnTarget } from "@/shared/hooks/usePanelReturnTarget";
-import { normalizePubkey, truncatePubkey } from "@/shared/lib/pubkey";
+import { normalizePubkey, truncateNpub } from "@/shared/lib/pubkey";
 import {
   channelBotMemberPubkeySet,
   channelMemberPubkeySet,
@@ -100,7 +100,7 @@ export function buildChannelAgentSessionCandidates({
 
     byPubkey.set(key, {
       pubkey: member.pubkey,
-      name: member.displayName ?? truncatePubkey(member.pubkey),
+      name: member.displayName ?? truncateNpub(member.pubkey),
       status: "deployed",
       agentSource: "member-bot",
       canInterruptTurn: false,

desktop/src/features/community-members/ui/AddMemberDialog.tsx

@@ -13,7 +13,7 @@ import { ProfileAvatar } from "@/features/profile/ui/ProfileAvatar";
 import { SelectedRecipientChip } from "@/features/profile/ui/SelectedRecipientChip";
 import type { RelayMemberRole, UserSearchResult } from "@/shared/api/types";
 import { parsePubkeyInput } from "@/shared/lib/nostrUtils";
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 import { Button } from "@/shared/ui/button";
 import {
   Dialog,
@@ -50,7 +50,7 @@ function formatSearchUserName(user: UserSearchResult) {
   return (
     user.displayName?.trim() ||
     user.nip05Handle?.trim() ||
-    truncatePubkey(user.pubkey)
+    truncateNpub(user.pubkey)
   );
 }
 

desktop/src/features/community-members/ui/CommunityMembersCard.tsx

@@ -3,7 +3,7 @@ import { MoreHorizontal, Plus, Shield, ShieldCheck, User } from "lucide-react";
 import { toast } from "sonner";
 
 import { useUsersBatchQuery } from "@/features/profile/hooks";
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 import { PubKey } from "@/shared/ui/PubKey";
 import {
   useChangeRelayMemberRoleMutation,
@@ -101,7 +101,7 @@ function MemberRow({
         <div className="min-w-0">
           <div className="flex items-center gap-2">
             <span className="truncate text-sm font-medium">
-              {displayName || truncatePubkey(member.pubkey)}
+              {displayName || truncateNpub(member.pubkey)}
             </span>
             <RoleBadge role={member.role} />
             {isSelf ? (

desktop/src/features/community-members/ui/CommunityMembersSettingsCard.tsx

@@ -19,7 +19,11 @@ import type {
   RelayMemberRole,
   UserProfileSummary,
 } from "@/shared/api/types";
-import { normalizePubkey, truncatePubkey } from "@/shared/lib/pubkey";
+import {
+  normalizePubkey,
+  truncateNpub,
+  UNAVAILABLE_KEY_LABEL,
+} from "@/shared/lib/pubkey";
 import { Button } from "@/shared/ui/button";
 import {
   DropdownMenu,
@@ -65,7 +69,7 @@ function HoverMemberIdentity({
   displayName: string;
   pubkey: string;
 }) {
-  const npub = npubFromPubkey(pubkey) ?? pubkey;
+  const npub = npubFromPubkey(pubkey) ?? UNAVAILABLE_KEY_LABEL;
   return (
     <span className="inline-grid min-w-0 max-w-full grid-cols-1" title={npub}>
       <span
@@ -78,7 +82,7 @@ function HoverMemberIdentity({
         className="col-start-1 row-start-1 max-w-0 truncate font-mono text-2xs opacity-0 blur-0 transition-[max-width,opacity,filter] duration-[250ms] ease-in-out group-hover/member:max-w-40 group-hover/member:opacity-100 group-hover/member:blur-0 group-focus-within/member:max-w-40 group-focus-within/member:opacity-100 group-focus-within/member:blur-0 motion-reduce:transition-none"
         data-testid={`relay-member-npub-${pubkey}`}
       >
-        {truncatePubkey(npub)}
+        {truncateNpub(npub)}
       </span>
     </span>
   );

desktop/src/features/community-members/ui/ConfirmRemoveDialog.tsx

@@ -1,6 +1,6 @@
 import { toast } from "sonner";
 
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 import { PubKey } from "@/shared/ui/PubKey";
 import { useRemoveRelayMemberMutation } from "@/features/community-members/hooks";
 import type { RelayMember } from "@/shared/api/types";
@@ -25,7 +25,7 @@ export function ConfirmRemoveDialog({
   onOpenChange: (open: boolean) => void;
 }) {
   const removeMutation = useRemoveRelayMemberMutation();
-  const label = displayName || (member ? truncatePubkey(member.pubkey) : "");
+  const label = displayName || (member ? truncateNpub(member.pubkey) : "");
 
   function handleOpenChange(next: boolean) {
     if (!next) {

desktop/src/features/community-members/useCommunityJoinAlerts.test.mjs

@@ -250,6 +250,7 @@ import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 
 import { useCommunityJoinAlerts } from "@/features/community-members/useCommunityJoinAlerts.ts";
 import { joinAlertStorageKey } from "@/features/community-members/lib/joinAlerts.ts";
+import { truncateNpub } from "@/shared/lib/pubkey.ts";
 import { relayClient } from "@/shared/api/relayClient.ts";
 import { CommunitiesProvider } from "@/features/communities/useCommunities.tsx";
 import { useCommunities } from "@/features/communities/useCommunities.tsx";
@@ -1715,7 +1716,7 @@ describe("useCommunityJoinAlerts — mounted subscription behaviour", () => {
       "a frame that predates the demotion must not re-open disclosure",
     );
     assert.ok(
-      !notifications.some((entry) => entry.body?.includes(BOB.slice(0, 8))),
+      !notifications.some((entry) => entry.body?.includes(truncateNpub(BOB))),
       "the demoted viewer must never learn the new member's identity",
     );
     assert.equal(
@@ -1982,11 +1983,11 @@ describe("useCommunityJoinAlerts — mounted subscription behaviour", () => {
       "a community switch clears the latch: the feature recovers without a reload",
     );
     assert.ok(
-      notifications.some((entry) => entry.body?.includes(BOB.slice(0, 8))),
+      notifications.some((entry) => entry.body?.includes(truncateNpub(BOB))),
       "the join suppressed by the latch is re-announced, not lost",
     );
     assert.ok(
-      notifications.some((entry) => entry.body?.includes(CAROL.slice(0, 8))),
+      notifications.some((entry) => entry.body?.includes(truncateNpub(CAROL))),
       "and the new join lands too",
     );
 

desktop/src/features/forum/ui/ForumComposer.lifecycle.test.mjs

@@ -86,6 +86,9 @@ async function setup(options = {}) {
     "@/shared/lib/pubkey": {
       normalizePubkey: (s) => s.toLowerCase(),
       truncatePubkey: (s) => s,
+      // Compact-identity seam stubbed alongside its sibling: this suite
+      // renders display names, never key-form labels.
+      truncateNpub: (s) => s,
     },
     "@/features/channels/hooks": {
       useAddChannelMembersMutation: () => ({

desktop/src/features/forum/ui/useForumMentionPreparation.ts

@@ -4,7 +4,7 @@ import { PRIVATE_CHANNEL_ADD_DENIED_MESSAGE } from "@/features/channels/lib/chan
 import { useCanAddChannelMembers } from "@/features/channels/useCanAddChannelMembers";
 import type { UseMentionsResult } from "@/features/messages/lib/useMentions";
 import type { ChannelType } from "@/shared/api/types";
-import { normalizePubkey, truncatePubkey } from "@/shared/lib/pubkey";
+import { normalizePubkey, truncateNpub } from "@/shared/lib/pubkey";
 
 type PendingInvite = {
   channelId: string;
@@ -176,7 +176,7 @@ export function useForumMentionPreparation(
       isInvitePending: isInviting,
       names: (pending?.nonMemberPubkeys ?? []).map(
         (pubkey) =>
-          mentions.getMentionDisplayName(pubkey) ?? truncatePubkey(pubkey),
+          mentions.getMentionDisplayName(pubkey) ?? truncateNpub(pubkey),
       ),
       onDismiss: dismiss,
       onInvite: () => void invite(),

desktop/src/features/home/ui/RecentNotesSection.tsx

@@ -4,7 +4,7 @@ import type { UserNote } from "@/shared/api/socialTypes";
 import type { UserProfileSummary } from "@/shared/api/types";
 import { Markdown } from "@/shared/ui/markdown";
 import { UserAvatar } from "@/shared/ui/UserAvatar";
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 
 type RecentNotesSectionProps = {
   notes: UserNote[];
@@ -52,8 +52,7 @@ export function RecentNotesSection({
       <div className="space-y-0 overflow-hidden rounded-md border border-border/60">
         {notes.slice(0, 5).map((note) => {
           const profile = profiles[note.pubkey.toLowerCase()];
-          const displayName =
-            profile?.displayName ?? truncatePubkey(note.pubkey);
+          const displayName = profile?.displayName ?? truncateNpub(note.pubkey);
           const isAgent = agentPubkeys.has(note.pubkey);
 
           return (

desktop/src/features/huddle/components/HuddleBar.tsx

@@ -33,7 +33,7 @@ import { AddAgentDialog, type AgentAddResult } from "./AddAgentDialog";
 import type { HuddleAgentVoiceSettings } from "./AgentVoiceMenu";
 import { MicControls, SpeakerControls } from "./MicControls";
 import { HuddleParticipantsControl } from "./ParticipantList";
-import { truncatePubkey } from "@/shared/lib/pubkey";
+import { truncateNpub } from "@/shared/lib/pubkey";
 
 // Mirrors HuddleState in src-tauri/src/huddle/mod.rs.
 type HuddleState = {
@@ -98,7 +98,7 @@ function clampReactionName(name: string): string {
 }
 
 function fallbackNameForPubkey(pubkey?: string | null): string {
-  return pubkey ? `Participant ${truncatePubkey(pubkey)}` : "Someone";
+  return pubkey ? `Participant ${truncateNpub(pubkey)}` : "Someone";
 }
 
 function parseHuddleReactionEvent(event: RelayEvent) {