diff --git a/app/src/agentworld/pages/AgentWorld.tsx b/app/src/agentworld/pages/AgentWorld.tsx
index 801c4af76..7b2f9e0ef 100644
--- a/app/src/agentworld/pages/AgentWorld.tsx
+++ b/app/src/agentworld/pages/AgentWorld.tsx
@@ -25,6 +25,7 @@ import LedgerSection from './LedgerSection';
 import MarketplaceSection from './MarketplaceSection';
 import MessagingSection from './MessagingSection';
 import ProfilesSection from './ProfilesSection';
+import ProfileViewer from './ProfileViewer';
 import WelcomeSection from './WelcomeSection';
 import WorldSection from './WorldSection';
 
@@ -112,9 +113,12 @@ export default function AgentWorld() {
 
   // Derive the active slug from the current sub-path
   // e.g. /agent-world/explore → 'explore'
-  const pathParts = location.pathname.split('/');
-  const activeSlug = pathParts[pathParts.length - 1] || 'welcome';
-  const activeSection = activeSlug === 'agent-world' ? 'welcome' : activeSlug;
+  // Take the FIRST segment after `/agent-world`, not the last — nested routes
+  // like `/agent-world/profiles/:username` must still resolve to the `profiles`
+  // section (keeping the sidebar selection) rather than the trailing param.
+  const pathParts = location.pathname.split('/').filter(Boolean);
+  const awIndex = pathParts.indexOf('agent-world');
+  const activeSection = (awIndex >= 0 ? pathParts[awIndex + 1] : undefined) || 'welcome';
   const isWorld = activeSection === 'world';
   // The welcome landing sits flush (no framed card) so its centered pitch reads
   // as part of the page, not boxed inside a panel.
@@ -174,6 +178,8 @@ export default function AgentWorld() {
             {/* === AGENT-WORLD SECTION ROUTES (append one per section) === */}
             <Route path="directory" element={<DirectorySection />} />
             <Route path="profiles" element={<ProfilesSection />} />
+            {/* Public viewer for an arbitrary handle (own/other users/agents) — #4931 */}
+            <Route path="profiles/:username" element={<ProfileViewer />} />
             <Route path="identities" element={<IdentitiesSection />} />
             <Route path="marketplace" element={<MarketplaceSection />} />
             <Route path="messaging" element={<MessagingSection />} />
diff --git a/app/src/agentworld/pages/ProfileViewer.test.tsx b/app/src/agentworld/pages/ProfileViewer.test.tsx
new file mode 100644
index 000000000..67d78f8d6
--- /dev/null
+++ b/app/src/agentworld/pages/ProfileViewer.test.tsx
@@ -0,0 +1,182 @@
+/**
+ * Tests for ProfileViewer — the Agent World public profile viewer (#4931).
+ *
+ * The viewer renders an ARBITRARY handle's profile via `graphql.profile`, with a
+ * follow/unfollow button (`follows.follow`/`unfollow`, follow-state from
+ * `follows.following`) and a copy-link affordance. apiClient + wallet are mocked;
+ * all handles/ids are generic placeholders. These behaviours do not exist before
+ * this change (the route + component are new), so the file is the regression.
+ */
+import { fireEvent, render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { MemoryRouter, Route, Routes } from 'react-router-dom';
+import { beforeEach, describe, expect, test, vi } from 'vitest';
+
+import { type GqlProfile } from '../../lib/agentworld/invokeApiClient';
+import { fetchWalletStatus } from '../../services/walletApi';
+import { apiClient } from '../AgentWorldShell';
+import ProfileViewer from './ProfileViewer';
+
+vi.mock('../AgentWorldShell', () => ({
+  apiClient: {
+    graphql: { profile: vi.fn(), agentCard: vi.fn() },
+    follows: { follow: vi.fn(), unfollow: vi.fn(), stats: vi.fn() },
+  },
+}));
+vi.mock('../../services/walletApi', () => ({ fetchWalletStatus: vi.fn() }));
+
+const graphqlProfile = vi.mocked(apiClient.graphql.profile);
+const graphqlAgentCard = vi.mocked(apiClient.graphql.agentCard);
+const followsFollow = vi.mocked(apiClient.follows.follow);
+const followsUnfollow = vi.mocked(apiClient.follows.unfollow);
+const followsStats = vi.mocked(apiClient.follows.stats);
+const walletStatus = vi.mocked(fetchWalletStatus);
+
+/** Agent card carrying the signer-aware follow flag the viewer reads. */
+function agentCardFollowing(viewerIsFollowing: boolean) {
+  return { agentId: PROFILE_ADDR, viewerIsFollowing };
+}
+
+const PROFILE_ADDR = 'ProfiLeSoLanaAddr00000000001';
+const VIEWER_ADDR = 'ViewerSoLanaAddr00000000002';
+
+function makeProfile(overrides: Partial<GqlProfile> = {}): GqlProfile {
+  return {
+    cryptoId: PROFILE_ADDR,
+    actorType: 'agent',
+    displayName: 'Alice Agent',
+    bio: 'An autonomous test agent.',
+    private: false,
+    createdAt: '2026-01-02T00:00:00Z',
+    updatedAt: '2026-01-02T00:00:00Z',
+    verified: true,
+    attestations: [],
+    agentCard: null,
+    identities: [
+      {
+        username: 'alice',
+        cryptoId: PROFILE_ADDR,
+        publicKey: 'pk',
+        registeredAt: '2026-01-02T00:00:00Z',
+        expiresAt: '2027-01-02T00:00:00Z',
+        status: 'active',
+        updatedAt: '2026-01-02T00:00:00Z',
+        primary: true,
+      },
+    ],
+    ...overrides,
+  };
+}
+
+function walletWith(address: string | null) {
+  return { accounts: address ? [{ chain: 'solana', address }] : [] } as unknown as Awaited<
+    ReturnType<typeof fetchWalletStatus>
+  >;
+}
+
+function renderViewer(username = 'alice') {
+  return render(
+    <MemoryRouter initialEntries={[`/agent-world/profiles/${username}`]}>
+      <Routes>
+        <Route path="/agent-world/profiles/:username" element={<ProfileViewer />} />
+      </Routes>
+    </MemoryRouter>
+  );
+}
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  graphqlProfile.mockResolvedValue(makeProfile());
+  // Default: viewer does not follow this agent yet.
+  graphqlAgentCard.mockResolvedValue(agentCardFollowing(false));
+  followsFollow.mockResolvedValue({ follower: VIEWER_ADDR, followee: PROFILE_ADDR, createdAt: '' });
+  followsUnfollow.mockResolvedValue(undefined);
+  followsStats.mockResolvedValue({ agentId: PROFILE_ADDR, followerCount: 3, followingCount: 5 });
+  walletStatus.mockResolvedValue(walletWith(VIEWER_ADDR));
+});
+
+describe('ProfileViewer', () => {
+  test('renders an arbitrary handle profile (not the wallet owner)', async () => {
+    renderViewer('alice');
+    // Looked up by the route param, not the wallet.
+    await waitFor(() => expect(graphqlProfile).toHaveBeenCalledWith('alice'));
+    // '@alice' shows in the header and again in the owned-handles list; assert
+    // it renders at all (not a specific count) so the query stays unambiguous.
+    expect((await screen.findAllByText('@alice')).length).toBeGreaterThan(0);
+    expect(screen.getByText('An autonomous test agent.')).toBeInTheDocument();
+    // Follower stats load in their own effect (a second async tick after the
+    // profile), so await rather than assert synchronously.
+    expect(await screen.findByText('3')).toBeInTheDocument();
+  });
+
+  test('shows a not-found state when the profile does not exist', async () => {
+    graphqlProfile.mockResolvedValue(null);
+    renderViewer('ghost');
+    expect(await screen.findByText(/profile not found/i)).toBeInTheDocument();
+  });
+
+  test('follow button follows then unfollows another user', async () => {
+    const user = userEvent.setup();
+    renderViewer('alice');
+
+    // Button appears once the wallet resolves and follow-state loads.
+    const followBtn = await screen.findByRole('button', { name: 'Follow' });
+    await waitFor(() => expect(followBtn).toBeEnabled());
+
+    // Follower count starts at 3 (from follows.stats).
+    expect(await screen.findByText('3')).toBeInTheDocument();
+
+    await user.click(followBtn);
+    expect(followsFollow).toHaveBeenCalledWith(PROFILE_ADDR);
+    const followingBtn = await screen.findByRole('button', { name: 'Following' });
+    // Count tracks the follow optimistically: 3 -> 4.
+    expect(await screen.findByText('4')).toBeInTheDocument();
+
+    await user.click(followingBtn);
+    expect(followsUnfollow).toHaveBeenCalledWith(PROFILE_ADDR);
+    expect(await screen.findByRole('button', { name: 'Follow' })).toBeInTheDocument();
+    // ...and back to 3 on unfollow.
+    expect(await screen.findByText('3')).toBeInTheDocument();
+  });
+
+  test('pre-selects the following state from the agent card follow flag', async () => {
+    graphqlAgentCard.mockResolvedValue(agentCardFollowing(true));
+    renderViewer('alice');
+    // viewerIsFollowing:true → button shows Following without a click.
+    expect(await screen.findByRole('button', { name: 'Following' })).toBeInTheDocument();
+    expect(screen.queryByRole('button', { name: 'Follow' })).not.toBeInTheDocument();
+  });
+
+  test('hides the follow button when the follow relationship is unknown', async () => {
+    // No agent card (e.g. a non-agent profile) → no follow flag → the button is
+    // hidden rather than defaulting to an inferred state.
+    graphqlAgentCard.mockResolvedValue(null);
+    renderViewer('alice');
+    await screen.findByTestId('profile-copy-link');
+    expect(screen.queryByRole('button', { name: 'Follow' })).not.toBeInTheDocument();
+    expect(screen.queryByRole('button', { name: 'Following' })).not.toBeInTheDocument();
+  });
+
+  test('hides the follow button and marks self when viewing own profile', async () => {
+    walletStatus.mockResolvedValue(walletWith(PROFILE_ADDR));
+    renderViewer('alice');
+    expect(await screen.findByText(/this is your profile/i)).toBeInTheDocument();
+    expect(screen.queryByRole('button', { name: 'Follow' })).not.toBeInTheDocument();
+    expect(screen.queryByRole('button', { name: 'Following' })).not.toBeInTheDocument();
+  });
+
+  test('copy-link affordance copies the shareable deep link', async () => {
+    // Install a clipboard spy and drive the click with fireEvent — NOT
+    // userEvent, whose setup() replaces navigator.clipboard with its own stub
+    // and would shadow this spy.
+    const writeText = vi.fn().mockResolvedValue(undefined);
+    Object.defineProperty(navigator, 'clipboard', { value: { writeText }, configurable: true });
+
+    renderViewer('alice');
+    const copyBtn = await screen.findByTestId('profile-copy-link');
+    fireEvent.click(copyBtn);
+
+    await waitFor(() => expect(writeText).toHaveBeenCalled());
+    expect(writeText.mock.calls[0][0] as string).toContain('#/agent-world/profiles/alice');
+  });
+});
diff --git a/app/src/agentworld/pages/ProfileViewer.tsx b/app/src/agentworld/pages/ProfileViewer.tsx
new file mode 100644
index 000000000..38dc6f512
--- /dev/null
+++ b/app/src/agentworld/pages/ProfileViewer.tsx
@@ -0,0 +1,508 @@
+/**
+ * ProfileViewer — Agent World public profile viewer for an ARBITRARY handle.
+ *
+ * Route: `/agent-world/profiles/:username`. Where `ProfilesSection` is hard-wired
+ * to the connected wallet, this viewer renders any user's or agent's profile via
+ * the already-plumbed read handlers: `graphql.profile(username)` (a rich
+ * `GqlProfile`) and `graphql.agentCard(cryptoId)` (the agent card + the
+ * signer-aware `viewerIsFollowing` flag), plus `follows.stats`. It adds a
+ * follow / unfollow button (reusing `follows.follow` / `follows.unfollow`) and a
+ * copy-link affordance so a profile is shareable.
+ *
+ * Read-only. Profile EDITING lives in `ProfilesSection` and is tracked
+ * separately (#4930); this component never mutates the viewed profile.
+ */
+import debug from 'debug';
+import { useCallback, useEffect, useState } from 'react';
+import { useParams } from 'react-router-dom';
+
+import PanelScaffold from '../../components/layout/PanelScaffold';
+import Button from '../../components/ui/Button';
+import {
+  type AgentCard,
+  type FollowStats,
+  type GqlAttestation,
+  type GqlProfile,
+  type Identity,
+  PaymentRequiredError,
+} from '../../lib/agentworld/invokeApiClient';
+import { useT } from '../../lib/i18n/I18nContext';
+import { fetchWalletStatus } from '../../services/walletApi';
+import { apiClient } from '../AgentWorldShell';
+
+const log = debug('agentworld:profileviewer');
+
+// ── Helpers ─────────────────────────────────────────────────────────────────────
+
+/** Sanitized error label for diagnostics — an error NAME/kind only, never the
+ *  raw message (which may carry backend internals / PII). */
+function errorKind(err: unknown): string {
+  if (err instanceof PaymentRequiredError) return 'payment_required';
+  if (err instanceof Error) return err.name || 'Error';
+  return 'unknown';
+}
+
+function truncateCryptoId(cryptoId: string): string {
+  if (cryptoId.length <= 12) return cryptoId;
+  return `${cryptoId.slice(0, 6)}…${cryptoId.slice(-4)}`;
+}
+
+/** Format an ISO date using the runtime locale (never a hard-coded language). */
+function formatDate(iso: string): string {
+  const d = new Date(iso);
+  if (Number.isNaN(d.getTime())) return iso;
+  return d.toLocaleDateString(undefined, { year: 'numeric', month: 'short', day: 'numeric' });
+}
+
+/** Pick the primary identity, else the first. */
+function pickPrimary<T extends { primary?: boolean }>(identities: T[]): T | undefined {
+  return identities.find(i => i.primary) ?? identities[0];
+}
+
+/** Read the signer-aware `viewerIsFollowing` flag off an agent card, if present. */
+function readViewerFollows(card: AgentCard | null): boolean | null {
+  const value = card?.['viewerIsFollowing'];
+  return typeof value === 'boolean' ? value : null;
+}
+
+/** Resolve the wallet's Solana address (the viewer's tiny.place cryptoId). */
+function useMyAgentId(): string | null {
+  const [agentId, setAgentId] = useState<string | null>(null);
+  useEffect(() => {
+    let cancelled = false;
+    log('[agentworld:profileviewer] resolving wallet agent id');
+    void fetchWalletStatus()
+      .then(status => {
+        if (cancelled) return;
+        const solana = (status.accounts ?? []).find(a => a.chain === 'solana');
+        if (solana?.address) setAgentId(solana.address);
+        else log('[agentworld:profileviewer] no solana wallet account; viewer is signed out');
+      })
+      .catch((err: unknown) => {
+        if (!cancelled) log('[agentworld:profileviewer] wallet resolve failed: %s', errorKind(err));
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, []);
+  return agentId;
+}
+
+// ── Profile fetch ────────────────────────────────────────────────────────────────
+
+type ViewerState =
+  | { status: 'loading' }
+  | { status: 'not_found' }
+  | { status: 'error' }
+  | { status: 'ok'; profile: GqlProfile };
+
+/**
+ * Load the target handle's public profile, keyed by the normalized handle so a
+ * stale response for a previous handle can never surface the wrong profile. The
+ * effect never calls setState synchronously — the only state writes happen in
+ * the async resolve/reject, satisfying the repo's no-sync-setState-in-effect
+ * rule. `null` from the server → not found.
+ */
+function useProfile(handle: string): ViewerState {
+  const [entry, setEntry] = useState<{ key: string; state: ViewerState }>({
+    key: '',
+    state: { status: 'loading' },
+  });
+
+  useEffect(() => {
+    if (!handle) return;
+    let cancelled = false;
+    log('[agentworld:profileviewer] loading profile');
+    void apiClient.graphql
+      .profile(handle)
+      .then(profile => {
+        if (cancelled) return;
+        log('[agentworld:profileviewer] profile %s', profile ? 'loaded' : 'not found');
+        setEntry({
+          key: handle,
+          state: profile ? { status: 'ok', profile } : { status: 'not_found' },
+        });
+      })
+      .catch((err: unknown) => {
+        if (cancelled) return;
+        log('[agentworld:profileviewer] profile load failed: %s', errorKind(err));
+        setEntry({ key: handle, state: { status: 'error' } });
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [handle]);
+
+  if (!handle) return { status: 'not_found' };
+  // Until THIS handle's response lands, show loading — prevents a previous
+  // handle's profile (and its follow/share actions) from flashing.
+  return entry.key === handle ? entry.state : { status: 'loading' };
+}
+
+// ── Agent card (also carries the signer-aware follow flag) ───────────────────────
+
+/** Fetch the agent card for `cryptoId`. Returns `null` for non-agent profiles or
+ *  on failure — callers degrade to "unknown". */
+function useAgentCard(cryptoId: string): AgentCard | null {
+  const [card, setCard] = useState<AgentCard | null>(null);
+  useEffect(() => {
+    if (!cryptoId) return;
+    let cancelled = false;
+    log('[agentworld:profileviewer] loading agent card');
+    void apiClient.graphql
+      .agentCard(cryptoId)
+      .then(c => {
+        if (!cancelled) setCard(c);
+      })
+      .catch((err: unknown) => {
+        if (!cancelled)
+          log('[agentworld:profileviewer] agent card load failed: %s', errorKind(err));
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [cryptoId]);
+  return card;
+}
+
+// ── Follow control ─────────────────────────────────────────────────────────────
+
+type FollowState = 'unknown' | 'following' | 'not_following';
+
+/**
+ * Follow relationship for `targetCryptoId`, derived ONLY from the direct,
+ * signer-aware `viewerFollowsHint` (from the agent card). It never infers a
+ * relationship from partial or failed data: when the hint is absent it stays
+ * `'unknown'` and the button is hidden, rather than defaulting to "not
+ * following" and risking a follow() on an existing relationship. A user toggle
+ * takes optimistic precedence via `override`.
+ */
+function useFollow(
+  myAgentId: string | null,
+  targetCryptoId: string,
+  viewerFollowsHint: boolean | null,
+  onFollowChange?: (next: 'following' | 'not_following') => void
+) {
+  const [override, setOverride] = useState<'following' | 'not_following' | null>(null);
+  const [busy, setBusy] = useState(false);
+
+  const isSelf = myAgentId != null && myAgentId === targetCryptoId;
+  const enabled = myAgentId != null && targetCryptoId !== '' && !isSelf;
+  const state: FollowState =
+    override ??
+    (viewerFollowsHint == null ? 'unknown' : viewerFollowsHint ? 'following' : 'not_following');
+
+  const toggle = useCallback(async () => {
+    if (busy || !enabled || state === 'unknown') return;
+    setBusy(true);
+    const next = state === 'following' ? 'not_following' : 'following';
+    try {
+      if (state === 'following') await apiClient.follows.unfollow(targetCryptoId);
+      else await apiClient.follows.follow(targetCryptoId);
+      setOverride(next);
+      // Keep the follower count in step with the button (it is fetched once and
+      // would otherwise lag behind after a follow/unfollow).
+      onFollowChange?.(next);
+      // No PII: only the resulting action, never the address/handle.
+      log('[agentworld:profileviewer] follow toggled -> %s', next);
+    } catch (err) {
+      log('[agentworld:profileviewer] follow toggle failed: %s', errorKind(err));
+    } finally {
+      setBusy(false);
+    }
+  }, [busy, enabled, state, targetCryptoId, onFollowChange]);
+
+  return { state, busy, isSelf, enabled, toggle };
+}
+
+// ── Follow stats sub-hook ────────────────────────────────────────────────────────
+
+function useFollowStats(cryptoId: string): FollowStats | null {
+  const [stats, setStats] = useState<FollowStats | null>(null);
+  useEffect(() => {
+    if (!cryptoId) return;
+    let cancelled = false;
+    void apiClient.follows
+      .stats(cryptoId)
+      .then(s => {
+        if (!cancelled) setStats(s);
+      })
+      .catch((err: unknown) => {
+        if (!cancelled)
+          log('[agentworld:profileviewer] follow stats load failed: %s', errorKind(err));
+      });
+    return () => {
+      cancelled = true;
+    };
+  }, [cryptoId]);
+  return stats;
+}
+
+// ── Presentational bits ──────────────────────────────────────────────────────────
+
+function StatusBlock({ tone, title, body }: { tone: string; title: string; body?: string }) {
+  return (
+    <div className="flex h-64 flex-col items-center justify-center gap-2 text-center">
+      <p className={`text-base font-medium ${tone}`}>{title}</p>
+      {body && <p className="max-w-md text-sm text-content-muted">{body}</p>}
+    </div>
+  );
+}
+
+// ── Main export ──────────────────────────────────────────────────────────────────
+
+export default function ProfileViewer() {
+  const { username } = useParams<{ username: string }>();
+  const { t } = useT();
+  const routeHandle = (username ?? '').replace(/^@+/, '').trim();
+  const state = useProfile(routeHandle);
+
+  let body: React.ReactNode;
+  if (state.status === 'loading') {
+    body = (
+      <div className="flex h-64 items-center justify-center text-content-faint">
+        <span className="animate-pulse text-sm">{t('agentWorld.profileViewer.loading')}</span>
+      </div>
+    );
+  } else if (state.status === 'not_found') {
+    body = (
+      <StatusBlock
+        tone="text-content-secondary"
+        title={t('agentWorld.profileViewer.notFoundTitle')}
+        body={t('agentWorld.profileViewer.notFoundBody')}
+      />
+    );
+  } else if (state.status === 'error') {
+    // Generic, translated copy only — never the raw external error string.
+    body = (
+      <StatusBlock
+        tone="text-red-600 dark:text-red-400"
+        title={t('agentWorld.profileViewer.errorTitle')}
+      />
+    );
+  } else {
+    body = <ProfileCard profile={state.profile} routeHandle={routeHandle} />;
+  }
+
+  return (
+    <PanelScaffold description={t('agentWorld.profileViewer.description')}>{body}</PanelScaffold>
+  );
+}
+
+// ── Profile card ─────────────────────────────────────────────────────────────────
+
+function ProfileCard({ profile, routeHandle }: { profile: GqlProfile; routeHandle: string }) {
+  const { t } = useT();
+  const myAgentId = useMyAgentId();
+  const cryptoId = profile.cryptoId;
+  const agentCard = useAgentCard(cryptoId);
+  // Optimistic follower-count adjustment so the count tracks the follow button
+  // (stats are fetched once and would otherwise lag after a toggle).
+  const [followerDelta, setFollowerDelta] = useState(0);
+  const follow = useFollow(myAgentId, cryptoId, readViewerFollows(agentCard), next =>
+    setFollowerDelta(d => d + (next === 'following' ? 1 : -1))
+  );
+  const followStats = useFollowStats(cryptoId);
+  const [copied, setCopied] = useState(false);
+  // Fall back to the initials monogram if the avatar image fails to load.
+  const [avatarBroken, setAvatarBroken] = useState(false);
+
+  const primaryIdentity = pickPrimary(profile.identities ?? []);
+  const primaryUsername = primaryIdentity?.username ?? null;
+  const hasHandle = primaryUsername !== null;
+  const usernameClean = (primaryUsername ?? profile.displayName ?? '').replace(/^@+/, '');
+  const handle = hasHandle ? `@${usernameClean}` : usernameClean;
+  const displayName = profile.displayName || usernameClean || '?';
+  const initials = displayName.slice(0, 2).toUpperCase();
+  const skills = profile.tags ?? [];
+  const attestations: GqlAttestation[] = profile.attestations ?? [];
+  const ownedIdentities: Identity[] = profile.identities ?? [];
+  const actorType = profile.actorType ?? '';
+  const isHuman = actorType.toLowerCase() === 'human';
+  const showFollow = follow.enabled && follow.state !== 'unknown';
+  // Read-only agent-card summary (only when it adds something over the profile).
+  const cardDescription = (agentCard?.description ?? '').trim();
+
+  const copyLink = useCallback(() => {
+    // Build the deep link from the ROUTE handle (what the user actually
+    // navigated to), not from `identities`/`displayName` — those may be null or
+    // differ from the selected route, producing a link that does not resolve.
+    const { origin, pathname } = window.location;
+    const link = `${origin}${pathname}#/agent-world/profiles/${encodeURIComponent(routeHandle)}`;
+    void navigator.clipboard
+      ?.writeText(link)
+      .then(() => {
+        setCopied(true);
+        log('[agentworld:profileviewer] copied share link');
+        window.setTimeout(() => setCopied(false), 2000);
+      })
+      .catch((err: unknown) => {
+        log('[agentworld:profileviewer] copy link failed: %s', errorKind(err));
+      });
+  }, [routeHandle]);
+
+  return (
+    <div className="rounded-lg border border-line bg-surface p-4">
+      {/* Header row: identity + actions */}
+      <div className="flex items-start gap-4">
+        {profile.avatarUrl && !avatarBroken ? (
+          <img
+            src={profile.avatarUrl}
+            alt={displayName}
+            onError={() => setAvatarBroken(true)}
+            className="h-14 w-14 shrink-0 rounded-full object-cover"
+          />
+        ) : (
+          <div className="bg-primary-600 flex h-14 w-14 shrink-0 items-center justify-center rounded-full text-lg font-semibold text-content-inverted">
+            {initials}
+          </div>
+        )}
+        <div className="min-w-0 flex-1">
+          <h3 className="flex items-center gap-1.5 text-sm font-semibold text-content">
+            <span className="truncate">{handle}</span>
+            {profile.verified && (
+              <span className="text-xs text-blue-500" title="Verified">
+                &#10003;
+              </span>
+            )}
+            {actorType && (
+              <span
+                className={`rounded-full px-1.5 py-0.5 text-[10px] font-medium ${
+                  isHuman
+                    ? 'bg-emerald-50 text-emerald-600 dark:bg-emerald-900/30 dark:text-emerald-300'
+                    : 'bg-violet-50 text-violet-600 dark:bg-violet-900/30 dark:text-violet-300'
+                }`}>
+                {isHuman
+                  ? t('agentWorld.profileViewer.humanBadge')
+                  : t('agentWorld.profileViewer.agentBadge')}
+              </span>
+            )}
+          </h3>
+          {cryptoId && (
+            <p className="mt-0.5 font-mono text-xs text-content-muted" title={cryptoId}>
+              {truncateCryptoId(cryptoId)}
+            </p>
+          )}
+          {profile.bio && (
+            <p className="mt-1.5 text-xs leading-relaxed text-content-secondary">{profile.bio}</p>
+          )}
+        </div>
+
+        {/* Actions */}
+        <div className="flex shrink-0 flex-col items-end gap-1.5">
+          {follow.isSelf ? (
+            <span className="text-[11px] text-content-faint">
+              {t('agentWorld.profileViewer.ownProfile')}
+            </span>
+          ) : showFollow ? (
+            <Button
+              variant={follow.state === 'following' ? 'secondary' : 'primary'}
+              size="sm"
+              disabled={follow.busy}
+              onClick={() => void follow.toggle()}>
+              {follow.state === 'following'
+                ? t('agentWorld.profileViewer.following')
+                : t('agentWorld.profileViewer.follow')}
+            </Button>
+          ) : null}
+          <Button variant="tertiary" size="sm" onClick={copyLink} data-testid="profile-copy-link">
+            {copied
+              ? t('agentWorld.profileViewer.linkCopied')
+              : t('agentWorld.profileViewer.copyLink')}
+          </Button>
+        </div>
+      </div>
+
+      {cardDescription && cardDescription !== (profile.bio ?? '').trim() && (
+        <div className="mt-4 border-t border-line pt-4">
+          <h4 className="mb-2 text-xs font-medium text-content">
+            {t('agentWorld.profileViewer.agentCard')}
+          </h4>
+          <p className="text-xs leading-relaxed text-content-secondary">{cardDescription}</p>
+        </div>
+      )}
+
+      {skills.length > 0 && (
+        <div className="mt-4 border-t border-line pt-4">
+          <h4 className="mb-2 text-xs font-medium text-content">
+            {t('agentWorld.profileViewer.skills')}
+          </h4>
+          <div className="flex flex-wrap gap-1.5">
+            {skills.map(skill => (
+              <span
+                key={skill}
+                className="rounded-full bg-surface-subtle px-2 py-0.5 text-xs text-content-secondary">
+                {skill}
+              </span>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {attestations.length > 0 && (
+        <div className="mt-4 border-t border-line pt-4">
+          <h4 className="mb-2 text-xs font-medium text-content">
+            {t('agentWorld.profileViewer.verifiedAccounts')}
+          </h4>
+          <div className="flex flex-wrap gap-2">
+            {attestations.map(a => (
+              <span
+                key={a.attestationId}
+                className="inline-flex items-center gap-1 rounded-full bg-green-50 px-2 py-0.5 text-xs text-green-700 dark:bg-green-900/30 dark:text-green-300">
+                {a.platform}: {a.handle}
+              </span>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {ownedIdentities.length > 0 && (
+        <div className="mt-4 border-t border-line pt-4">
+          <h4 className="mb-2 text-xs font-medium text-content">
+            {t('agentWorld.profileViewer.handlesOwned')}
+          </h4>
+          <div className="flex flex-wrap gap-1.5">
+            {ownedIdentities.map(id => (
+              <span
+                key={id.username}
+                className="rounded-full border border-line px-2 py-0.5 text-xs text-content-secondary">
+                @{id.username.replace(/^@+/, '')}
+              </span>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {followStats && (
+        <div className="mt-4 border-t border-line pt-4">
+          <div className="flex gap-6">
+            <div>
+              <span className="text-sm font-semibold text-content">
+                {Math.max(0, followStats.followerCount + followerDelta)}
+              </span>
+              <span className="ml-1 text-xs text-content-muted">
+                {t('agentWorld.profileViewer.followers')}
+              </span>
+            </div>
+            <div>
+              <span className="text-sm font-semibold text-content">
+                {followStats.followingCount}
+              </span>
+              <span className="ml-1 text-xs text-content-muted">
+                {t('agentWorld.profileViewer.followingCount')}
+              </span>
+            </div>
+          </div>
+        </div>
+      )}
+
+      {profile.createdAt && (
+        <div className="mt-4 border-t border-line pt-4">
+          <span className="text-xs text-content-muted">
+            {t('agentWorld.profileViewer.joined')} {formatDate(profile.createdAt)}
+          </span>
+        </div>
+      )}
+    </div>
+  );
+}
diff --git a/app/src/lib/i18n/ar.ts b/app/src/lib/i18n/ar.ts
index 8df7581d5..ca7db0220 100644
--- a/app/src/lib/i18n/ar.ts
+++ b/app/src/lib/i18n/ar.ts
@@ -443,6 +443,25 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'جارٍ تحميل المزيد…',
   'agentWorld.feed.loadMoreError': 'تعذّر تحميل المزيد من المنشورات. حاول مرة أخرى.',
   'agentWorld.ledger': 'السجل',
+  'agentWorld.profileViewer.description': 'الملف الشخصي العام',
+  'agentWorld.profileViewer.agentCard': 'بطاقة الوكيل',
+  'agentWorld.profileViewer.loading': 'جارٍ تحميل الملف الشخصي…',
+  'agentWorld.profileViewer.notFoundTitle': 'الملف الشخصي غير موجود',
+  'agentWorld.profileViewer.notFoundBody': 'لا يوجد ملف شخصي منشور لهذا المعرّف حتى الآن.',
+  'agentWorld.profileViewer.errorTitle': 'تعذّر تحميل الملف الشخصي',
+  'agentWorld.profileViewer.follow': 'متابعة',
+  'agentWorld.profileViewer.following': 'تتابعه',
+  'agentWorld.profileViewer.copyLink': 'نسخ الرابط',
+  'agentWorld.profileViewer.linkCopied': 'تم نسخ الرابط',
+  'agentWorld.profileViewer.skills': 'المهارات',
+  'agentWorld.profileViewer.verifiedAccounts': 'الحسابات الموثّقة',
+  'agentWorld.profileViewer.handlesOwned': 'المعرّفات المملوكة',
+  'agentWorld.profileViewer.followers': 'متابِعون',
+  'agentWorld.profileViewer.followingCount': 'يتابع',
+  'agentWorld.profileViewer.joined': 'انضم في',
+  'agentWorld.profileViewer.ownProfile': 'هذا ملفك الشخصي',
+  'agentWorld.profileViewer.agentBadge': 'وكيل',
+  'agentWorld.profileViewer.humanBadge': 'إنسان',
   'agentWorld.ledger.loadMore': 'تحميل المزيد',
   'agentWorld.ledger.loadingMore': 'جارٍ تحميل المزيد…',
   'agentWorld.ledger.loadMoreError': 'تعذّر تحميل المزيد من المعاملات. حاول مرة أخرى.',
diff --git a/app/src/lib/i18n/bn.ts b/app/src/lib/i18n/bn.ts
index 2951c3c21..108f29635 100644
--- a/app/src/lib/i18n/bn.ts
+++ b/app/src/lib/i18n/bn.ts
@@ -459,6 +459,25 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'আরও লোড হচ্ছে…',
   'agentWorld.feed.loadMoreError': 'আরও পোস্ট লোড করা যায়নি। আবার চেষ্টা করুন।',
   'agentWorld.ledger': 'লেজার',
+  'agentWorld.profileViewer.description': 'সর্বজনীন প্রোফাইল',
+  'agentWorld.profileViewer.agentCard': 'এজেন্ট কার্ড',
+  'agentWorld.profileViewer.loading': 'প্রোফাইল লোড হচ্ছে…',
+  'agentWorld.profileViewer.notFoundTitle': 'প্রোফাইল পাওয়া যায়নি',
+  'agentWorld.profileViewer.notFoundBody': 'এই হ্যান্ডেলের জন্য এখনও কোনো প্রকাশিত প্রোফাইল নেই।',
+  'agentWorld.profileViewer.errorTitle': 'প্রোফাইল লোড করা যায়নি',
+  'agentWorld.profileViewer.follow': 'অনুসরণ',
+  'agentWorld.profileViewer.following': 'অনুসরণ করছেন',
+  'agentWorld.profileViewer.copyLink': 'লিঙ্ক কপি করুন',
+  'agentWorld.profileViewer.linkCopied': 'লিঙ্ক কপি হয়েছে',
+  'agentWorld.profileViewer.skills': 'দক্ষতা',
+  'agentWorld.profileViewer.verifiedAccounts': 'যাচাই করা অ্যাকাউন্ট',
+  'agentWorld.profileViewer.handlesOwned': 'মালিকানাধীন হ্যান্ডেল',
+  'agentWorld.profileViewer.followers': 'অনুসারী',
+  'agentWorld.profileViewer.followingCount': 'অনুসরণ করছেন',
+  'agentWorld.profileViewer.joined': 'যোগ দিয়েছেন',
+  'agentWorld.profileViewer.ownProfile': 'এটি আপনার প্রোফাইল',
+  'agentWorld.profileViewer.agentBadge': 'এজেন্ট',
+  'agentWorld.profileViewer.humanBadge': 'মানুষ',
   'agentWorld.ledger.loadMore': 'আরও লোড করুন',
   'agentWorld.ledger.loadingMore': 'আরও লোড হচ্ছে…',
   'agentWorld.ledger.loadMoreError': 'আরও লেনদেন লোড করা যায়নি। আবার চেষ্টা করুন।',
diff --git a/app/src/lib/i18n/de.ts b/app/src/lib/i18n/de.ts
index 74a78c31d..5ecd87f8d 100644
--- a/app/src/lib/i18n/de.ts
+++ b/app/src/lib/i18n/de.ts
@@ -484,6 +484,26 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadMoreError':
     'Weitere Beiträge konnten nicht geladen werden. Bitte erneut versuchen.',
   'agentWorld.ledger': 'Kontobuch',
+  'agentWorld.profileViewer.description': 'Öffentliches Profil',
+  'agentWorld.profileViewer.agentCard': 'Agentenkarte',
+  'agentWorld.profileViewer.loading': 'Profil wird geladen…',
+  'agentWorld.profileViewer.notFoundTitle': 'Profil nicht gefunden',
+  'agentWorld.profileViewer.notFoundBody':
+    'Für dieses Handle gibt es noch kein veröffentlichtes Profil.',
+  'agentWorld.profileViewer.errorTitle': 'Profil konnte nicht geladen werden',
+  'agentWorld.profileViewer.follow': 'Folgen',
+  'agentWorld.profileViewer.following': 'Folge ich',
+  'agentWorld.profileViewer.copyLink': 'Link kopieren',
+  'agentWorld.profileViewer.linkCopied': 'Link kopiert',
+  'agentWorld.profileViewer.skills': 'Fähigkeiten',
+  'agentWorld.profileViewer.verifiedAccounts': 'Verifizierte Konten',
+  'agentWorld.profileViewer.handlesOwned': 'Eigene Handles',
+  'agentWorld.profileViewer.followers': 'Follower',
+  'agentWorld.profileViewer.followingCount': 'folgt',
+  'agentWorld.profileViewer.joined': 'Beigetreten',
+  'agentWorld.profileViewer.ownProfile': 'Das ist dein Profil',
+  'agentWorld.profileViewer.agentBadge': 'Agent',
+  'agentWorld.profileViewer.humanBadge': 'Mensch',
   'agentWorld.ledger.loadMore': 'Mehr laden',
   'agentWorld.ledger.loadingMore': 'Wird geladen…',
   'agentWorld.ledger.loadMoreError':
diff --git a/app/src/lib/i18n/en.ts b/app/src/lib/i18n/en.ts
index 63f6daf06..88a4b8fb2 100644
--- a/app/src/lib/i18n/en.ts
+++ b/app/src/lib/i18n/en.ts
@@ -188,6 +188,25 @@ const en: TranslationMap = {
   'agentWorld.feed.loadingMore': 'Loading more…',
   'agentWorld.feed.loadMoreError': 'Could not load more posts. Try again.',
   'agentWorld.ledger': 'Ledger',
+  'agentWorld.profileViewer.description': 'Public profile',
+  'agentWorld.profileViewer.agentCard': 'Agent card',
+  'agentWorld.profileViewer.loading': 'Loading profile…',
+  'agentWorld.profileViewer.notFoundTitle': 'Profile not found',
+  'agentWorld.profileViewer.notFoundBody': 'No published profile exists for this handle yet.',
+  'agentWorld.profileViewer.errorTitle': 'Failed to load profile',
+  'agentWorld.profileViewer.follow': 'Follow',
+  'agentWorld.profileViewer.following': 'Following',
+  'agentWorld.profileViewer.copyLink': 'Copy link',
+  'agentWorld.profileViewer.linkCopied': 'Link copied',
+  'agentWorld.profileViewer.skills': 'Skills',
+  'agentWorld.profileViewer.verifiedAccounts': 'Verified accounts',
+  'agentWorld.profileViewer.handlesOwned': 'Handles owned',
+  'agentWorld.profileViewer.followers': 'followers',
+  'agentWorld.profileViewer.followingCount': 'following',
+  'agentWorld.profileViewer.joined': 'Joined',
+  'agentWorld.profileViewer.ownProfile': 'This is your profile',
+  'agentWorld.profileViewer.agentBadge': 'Agent',
+  'agentWorld.profileViewer.humanBadge': 'Human',
   'agentWorld.ledger.loadMore': 'Load more',
   'agentWorld.ledger.loadingMore': 'Loading more…',
   'agentWorld.ledger.loadMoreError': 'Could not load more transactions. Try again.',
diff --git a/app/src/lib/i18n/es.ts b/app/src/lib/i18n/es.ts
index 4680e29e6..f473afc9a 100644
--- a/app/src/lib/i18n/es.ts
+++ b/app/src/lib/i18n/es.ts
@@ -469,6 +469,26 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'Cargando más…',
   'agentWorld.feed.loadMoreError': 'No se pudieron cargar más publicaciones. Inténtalo de nuevo.',
   'agentWorld.ledger': 'Libro mayor',
+  'agentWorld.profileViewer.description': 'Perfil público',
+  'agentWorld.profileViewer.agentCard': 'Tarjeta del agente',
+  'agentWorld.profileViewer.loading': 'Cargando perfil…',
+  'agentWorld.profileViewer.notFoundTitle': 'Perfil no encontrado',
+  'agentWorld.profileViewer.notFoundBody':
+    'Todavía no existe un perfil publicado para este identificador.',
+  'agentWorld.profileViewer.errorTitle': 'No se pudo cargar el perfil',
+  'agentWorld.profileViewer.follow': 'Seguir',
+  'agentWorld.profileViewer.following': 'Siguiendo',
+  'agentWorld.profileViewer.copyLink': 'Copiar enlace',
+  'agentWorld.profileViewer.linkCopied': 'Enlace copiado',
+  'agentWorld.profileViewer.skills': 'Habilidades',
+  'agentWorld.profileViewer.verifiedAccounts': 'Cuentas verificadas',
+  'agentWorld.profileViewer.handlesOwned': 'Identificadores en propiedad',
+  'agentWorld.profileViewer.followers': 'seguidores',
+  'agentWorld.profileViewer.followingCount': 'siguiendo',
+  'agentWorld.profileViewer.joined': 'Se unió',
+  'agentWorld.profileViewer.ownProfile': 'Este es tu perfil',
+  'agentWorld.profileViewer.agentBadge': 'Agente',
+  'agentWorld.profileViewer.humanBadge': 'Humano',
   'agentWorld.ledger.loadMore': 'Cargar más',
   'agentWorld.ledger.loadingMore': 'Cargando más…',
   'agentWorld.ledger.loadMoreError': 'No se pudieron cargar más transacciones. Inténtalo de nuevo.',
diff --git a/app/src/lib/i18n/fr.ts b/app/src/lib/i18n/fr.ts
index db1d9cd03..f281dd0a6 100644
--- a/app/src/lib/i18n/fr.ts
+++ b/app/src/lib/i18n/fr.ts
@@ -479,6 +479,25 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'Chargement…',
   'agentWorld.feed.loadMoreError': 'Impossible de charger plus de publications. Réessayez.',
   'agentWorld.ledger': 'Grand livre',
+  'agentWorld.profileViewer.description': 'Profil public',
+  'agentWorld.profileViewer.agentCard': 'Fiche agent',
+  'agentWorld.profileViewer.loading': 'Chargement du profil…',
+  'agentWorld.profileViewer.notFoundTitle': 'Profil introuvable',
+  'agentWorld.profileViewer.notFoundBody': 'Aucun profil publié pour ce handle pour le moment.',
+  'agentWorld.profileViewer.errorTitle': 'Échec du chargement du profil',
+  'agentWorld.profileViewer.follow': 'Suivre',
+  'agentWorld.profileViewer.following': 'Suivi',
+  'agentWorld.profileViewer.copyLink': 'Copier le lien',
+  'agentWorld.profileViewer.linkCopied': 'Lien copié',
+  'agentWorld.profileViewer.skills': 'Compétences',
+  'agentWorld.profileViewer.verifiedAccounts': 'Comptes vérifiés',
+  'agentWorld.profileViewer.handlesOwned': 'Handles détenus',
+  'agentWorld.profileViewer.followers': 'abonnés',
+  'agentWorld.profileViewer.followingCount': 'abonnements',
+  'agentWorld.profileViewer.joined': 'Inscrit le',
+  'agentWorld.profileViewer.ownProfile': 'Ceci est votre profil',
+  'agentWorld.profileViewer.agentBadge': 'Agent',
+  'agentWorld.profileViewer.humanBadge': 'Humain',
   'agentWorld.ledger.loadMore': 'Charger plus',
   'agentWorld.ledger.loadingMore': 'Chargement…',
   'agentWorld.ledger.loadMoreError': 'Impossible de charger plus de transactions. Réessayez.',
diff --git a/app/src/lib/i18n/hi.ts b/app/src/lib/i18n/hi.ts
index e709ef2a7..232e8a110 100644
--- a/app/src/lib/i18n/hi.ts
+++ b/app/src/lib/i18n/hi.ts
@@ -459,6 +459,25 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'और लोड हो रहा है…',
   'agentWorld.feed.loadMoreError': 'अधिक पोस्ट लोड नहीं हो सके। फिर से प्रयास करें।',
   'agentWorld.ledger': 'खाता बही',
+  'agentWorld.profileViewer.description': 'सार्वजनिक प्रोफ़ाइल',
+  'agentWorld.profileViewer.agentCard': 'एजेंट कार्ड',
+  'agentWorld.profileViewer.loading': 'प्रोफ़ाइल लोड हो रही है…',
+  'agentWorld.profileViewer.notFoundTitle': 'प्रोफ़ाइल नहीं मिली',
+  'agentWorld.profileViewer.notFoundBody': 'इस हैंडल के लिए अभी तक कोई प्रकाशित प्रोफ़ाइल नहीं है।',
+  'agentWorld.profileViewer.errorTitle': 'प्रोफ़ाइल लोड नहीं हो सकी',
+  'agentWorld.profileViewer.follow': 'फ़ॉलो करें',
+  'agentWorld.profileViewer.following': 'फ़ॉलो कर रहे हैं',
+  'agentWorld.profileViewer.copyLink': 'लिंक कॉपी करें',
+  'agentWorld.profileViewer.linkCopied': 'लिंक कॉपी हो गया',
+  'agentWorld.profileViewer.skills': 'कौशल',
+  'agentWorld.profileViewer.verifiedAccounts': 'सत्यापित खाते',
+  'agentWorld.profileViewer.handlesOwned': 'स्वामित्व वाले हैंडल',
+  'agentWorld.profileViewer.followers': 'फ़ॉलोअर्स',
+  'agentWorld.profileViewer.followingCount': 'फ़ॉलोइंग',
+  'agentWorld.profileViewer.joined': 'शामिल हुए',
+  'agentWorld.profileViewer.ownProfile': 'यह आपकी प्रोफ़ाइल है',
+  'agentWorld.profileViewer.agentBadge': 'एजेंट',
+  'agentWorld.profileViewer.humanBadge': 'मानव',
   'agentWorld.ledger.loadMore': 'और लोड करें',
   'agentWorld.ledger.loadingMore': 'और लोड हो रहा है…',
   'agentWorld.ledger.loadMoreError': 'अधिक लेन-देन लोड नहीं हो सके। फिर से प्रयास करें।',
diff --git a/app/src/lib/i18n/id.ts b/app/src/lib/i18n/id.ts
index 839ddc9de..77954eb44 100644
--- a/app/src/lib/i18n/id.ts
+++ b/app/src/lib/i18n/id.ts
@@ -465,6 +465,25 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'Memuat lagi…',
   'agentWorld.feed.loadMoreError': 'Tidak dapat memuat postingan lainnya. Coba lagi.',
   'agentWorld.ledger': 'Buku Besar',
+  'agentWorld.profileViewer.description': 'Profil publik',
+  'agentWorld.profileViewer.agentCard': 'Kartu agen',
+  'agentWorld.profileViewer.loading': 'Memuat profil…',
+  'agentWorld.profileViewer.notFoundTitle': 'Profil tidak ditemukan',
+  'agentWorld.profileViewer.notFoundBody': 'Belum ada profil yang dipublikasikan untuk handel ini.',
+  'agentWorld.profileViewer.errorTitle': 'Gagal memuat profil',
+  'agentWorld.profileViewer.follow': 'Ikuti',
+  'agentWorld.profileViewer.following': 'Mengikuti',
+  'agentWorld.profileViewer.copyLink': 'Salin tautan',
+  'agentWorld.profileViewer.linkCopied': 'Tautan disalin',
+  'agentWorld.profileViewer.skills': 'Keterampilan',
+  'agentWorld.profileViewer.verifiedAccounts': 'Akun terverifikasi',
+  'agentWorld.profileViewer.handlesOwned': 'Handel yang dimiliki',
+  'agentWorld.profileViewer.followers': 'pengikut',
+  'agentWorld.profileViewer.followingCount': 'mengikuti',
+  'agentWorld.profileViewer.joined': 'Bergabung',
+  'agentWorld.profileViewer.ownProfile': 'Ini profil Anda',
+  'agentWorld.profileViewer.agentBadge': 'Agen',
+  'agentWorld.profileViewer.humanBadge': 'Manusia',
   'agentWorld.ledger.loadMore': 'Muat lebih banyak',
   'agentWorld.ledger.loadingMore': 'Memuat lagi…',
   'agentWorld.ledger.loadMoreError': 'Tidak dapat memuat transaksi lainnya. Coba lagi.',
diff --git a/app/src/lib/i18n/it.ts b/app/src/lib/i18n/it.ts
index c922c9441..062d3539e 100644
--- a/app/src/lib/i18n/it.ts
+++ b/app/src/lib/i18n/it.ts
@@ -472,6 +472,26 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'Caricamento…',
   'agentWorld.feed.loadMoreError': 'Impossibile caricare altri post. Riprova.',
   'agentWorld.ledger': 'Registro',
+  'agentWorld.profileViewer.description': 'Profilo pubblico',
+  'agentWorld.profileViewer.agentCard': 'Scheda agente',
+  'agentWorld.profileViewer.loading': 'Caricamento profilo…',
+  'agentWorld.profileViewer.notFoundTitle': 'Profilo non trovato',
+  'agentWorld.profileViewer.notFoundBody':
+    'Non esiste ancora un profilo pubblicato per questo handle.',
+  'agentWorld.profileViewer.errorTitle': 'Impossibile caricare il profilo',
+  'agentWorld.profileViewer.follow': 'Segui',
+  'agentWorld.profileViewer.following': 'Stai già seguendo',
+  'agentWorld.profileViewer.copyLink': 'Copia link',
+  'agentWorld.profileViewer.linkCopied': 'Link copiato',
+  'agentWorld.profileViewer.skills': 'Competenze',
+  'agentWorld.profileViewer.verifiedAccounts': 'Account verificati',
+  'agentWorld.profileViewer.handlesOwned': 'Handle posseduti',
+  'agentWorld.profileViewer.followers': 'follower',
+  'agentWorld.profileViewer.followingCount': 'seguiti',
+  'agentWorld.profileViewer.joined': 'Iscritto',
+  'agentWorld.profileViewer.ownProfile': 'Questo è il tuo profilo',
+  'agentWorld.profileViewer.agentBadge': 'Agente',
+  'agentWorld.profileViewer.humanBadge': 'Umano',
   'agentWorld.ledger.loadMore': 'Carica altro',
   'agentWorld.ledger.loadingMore': 'Caricamento…',
   'agentWorld.ledger.loadMoreError': 'Impossibile caricare altre transazioni. Riprova.',
diff --git a/app/src/lib/i18n/ko.ts b/app/src/lib/i18n/ko.ts
index e45921d3c..6766de9b2 100644
--- a/app/src/lib/i18n/ko.ts
+++ b/app/src/lib/i18n/ko.ts
@@ -452,6 +452,25 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': '더 불러오는 중…',
   'agentWorld.feed.loadMoreError': '게시물을 더 불러오지 못했습니다. 다시 시도하세요.',
   'agentWorld.ledger': '원장',
+  'agentWorld.profileViewer.description': '공개 프로필',
+  'agentWorld.profileViewer.agentCard': '에이전트 카드',
+  'agentWorld.profileViewer.loading': '프로필 불러오는 중…',
+  'agentWorld.profileViewer.notFoundTitle': '프로필을 찾을 수 없음',
+  'agentWorld.profileViewer.notFoundBody': '이 핸들에 대해 게시된 프로필이 아직 없습니다.',
+  'agentWorld.profileViewer.errorTitle': '프로필을 불러오지 못했습니다',
+  'agentWorld.profileViewer.follow': '팔로우',
+  'agentWorld.profileViewer.following': '팔로잉',
+  'agentWorld.profileViewer.copyLink': '링크 복사',
+  'agentWorld.profileViewer.linkCopied': '링크 복사됨',
+  'agentWorld.profileViewer.skills': '기술',
+  'agentWorld.profileViewer.verifiedAccounts': '인증된 계정',
+  'agentWorld.profileViewer.handlesOwned': '보유한 핸들',
+  'agentWorld.profileViewer.followers': '팔로워',
+  'agentWorld.profileViewer.followingCount': '팔로잉',
+  'agentWorld.profileViewer.joined': '가입일',
+  'agentWorld.profileViewer.ownProfile': '내 프로필입니다',
+  'agentWorld.profileViewer.agentBadge': '에이전트',
+  'agentWorld.profileViewer.humanBadge': '사람',
   'agentWorld.ledger.loadMore': '더 보기',
   'agentWorld.ledger.loadingMore': '더 불러오는 중…',
   'agentWorld.ledger.loadMoreError': '거래를 더 불러오지 못했습니다. 다시 시도하세요.',
diff --git a/app/src/lib/i18n/pl.ts b/app/src/lib/i18n/pl.ts
index 79754df75..241a1b624 100644
--- a/app/src/lib/i18n/pl.ts
+++ b/app/src/lib/i18n/pl.ts
@@ -470,6 +470,26 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'Ładowanie…',
   'agentWorld.feed.loadMoreError': 'Nie udało się załadować kolejnych postów. Spróbuj ponownie.',
   'agentWorld.ledger': 'Księga',
+  'agentWorld.profileViewer.description': 'Profil publiczny',
+  'agentWorld.profileViewer.agentCard': 'Karta agenta',
+  'agentWorld.profileViewer.loading': 'Ładowanie profilu…',
+  'agentWorld.profileViewer.notFoundTitle': 'Nie znaleziono profilu',
+  'agentWorld.profileViewer.notFoundBody':
+    'Dla tej nazwy użytkownika nie ma jeszcze opublikowanego profilu.',
+  'agentWorld.profileViewer.errorTitle': 'Nie udało się załadować profilu',
+  'agentWorld.profileViewer.follow': 'Obserwuj',
+  'agentWorld.profileViewer.following': 'Obserwujesz',
+  'agentWorld.profileViewer.copyLink': 'Kopiuj link',
+  'agentWorld.profileViewer.linkCopied': 'Link skopiowany',
+  'agentWorld.profileViewer.skills': 'Umiejętności',
+  'agentWorld.profileViewer.verifiedAccounts': 'Zweryfikowane konta',
+  'agentWorld.profileViewer.handlesOwned': 'Posiadane nazwy użytkownika',
+  'agentWorld.profileViewer.followers': 'obserwujący',
+  'agentWorld.profileViewer.followingCount': 'obserwowani',
+  'agentWorld.profileViewer.joined': 'Dołączono',
+  'agentWorld.profileViewer.ownProfile': 'To jest Twój profil',
+  'agentWorld.profileViewer.agentBadge': 'Agent',
+  'agentWorld.profileViewer.humanBadge': 'Człowiek',
   'agentWorld.ledger.loadMore': 'Załaduj więcej',
   'agentWorld.ledger.loadingMore': 'Ładowanie…',
   'agentWorld.ledger.loadMoreError':
diff --git a/app/src/lib/i18n/pt.ts b/app/src/lib/i18n/pt.ts
index fba1a7752..928d198ef 100644
--- a/app/src/lib/i18n/pt.ts
+++ b/app/src/lib/i18n/pt.ts
@@ -464,6 +464,26 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'Carregando mais…',
   'agentWorld.feed.loadMoreError': 'Não foi possível carregar mais publicações. Tente novamente.',
   'agentWorld.ledger': 'Livro-razão',
+  'agentWorld.profileViewer.description': 'Perfil público',
+  'agentWorld.profileViewer.agentCard': 'Cartão do agente',
+  'agentWorld.profileViewer.loading': 'Carregando perfil…',
+  'agentWorld.profileViewer.notFoundTitle': 'Perfil não encontrado',
+  'agentWorld.profileViewer.notFoundBody':
+    'Ainda não existe um perfil publicado para este identificador.',
+  'agentWorld.profileViewer.errorTitle': 'Falha ao carregar o perfil',
+  'agentWorld.profileViewer.follow': 'Seguir',
+  'agentWorld.profileViewer.following': 'Seguindo',
+  'agentWorld.profileViewer.copyLink': 'Copiar link',
+  'agentWorld.profileViewer.linkCopied': 'Link copiado',
+  'agentWorld.profileViewer.skills': 'Habilidades',
+  'agentWorld.profileViewer.verifiedAccounts': 'Contas verificadas',
+  'agentWorld.profileViewer.handlesOwned': 'Handles próprios',
+  'agentWorld.profileViewer.followers': 'seguidores',
+  'agentWorld.profileViewer.followingCount': 'seguindo',
+  'agentWorld.profileViewer.joined': 'Entrou',
+  'agentWorld.profileViewer.ownProfile': 'Este é o seu perfil',
+  'agentWorld.profileViewer.agentBadge': 'Agente',
+  'agentWorld.profileViewer.humanBadge': 'Humano',
   'agentWorld.ledger.loadMore': 'Carregar mais',
   'agentWorld.ledger.loadingMore': 'Carregando mais…',
   'agentWorld.ledger.loadMoreError': 'Não foi possível carregar mais transações. Tente novamente.',
diff --git a/app/src/lib/i18n/ru.ts b/app/src/lib/i18n/ru.ts
index a0b89fbc4..9eb8ad70d 100644
--- a/app/src/lib/i18n/ru.ts
+++ b/app/src/lib/i18n/ru.ts
@@ -464,6 +464,26 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': 'Загрузка…',
   'agentWorld.feed.loadMoreError': 'Не удалось загрузить больше публикаций. Попробуйте ещё раз.',
   'agentWorld.ledger': 'Реестр',
+  'agentWorld.profileViewer.description': 'Публичный профиль',
+  'agentWorld.profileViewer.agentCard': 'Карточка агента',
+  'agentWorld.profileViewer.loading': 'Загрузка профиля…',
+  'agentWorld.profileViewer.notFoundTitle': 'Профиль не найден',
+  'agentWorld.profileViewer.notFoundBody':
+    'Для этого идентификатора пока нет опубликованного профиля.',
+  'agentWorld.profileViewer.errorTitle': 'Не удалось загрузить профиль',
+  'agentWorld.profileViewer.follow': 'Подписаться',
+  'agentWorld.profileViewer.following': 'Вы подписаны',
+  'agentWorld.profileViewer.copyLink': 'Скопировать ссылку',
+  'agentWorld.profileViewer.linkCopied': 'Ссылка скопирована',
+  'agentWorld.profileViewer.skills': 'Навыки',
+  'agentWorld.profileViewer.verifiedAccounts': 'Подтверждённые аккаунты',
+  'agentWorld.profileViewer.handlesOwned': 'Собственные хэндлы',
+  'agentWorld.profileViewer.followers': 'подписчиков',
+  'agentWorld.profileViewer.followingCount': 'подписок',
+  'agentWorld.profileViewer.joined': 'Дата присоединения',
+  'agentWorld.profileViewer.ownProfile': 'Это ваш профиль',
+  'agentWorld.profileViewer.agentBadge': 'Агент',
+  'agentWorld.profileViewer.humanBadge': 'Человек',
   'agentWorld.ledger.loadMore': 'Загрузить ещё',
   'agentWorld.ledger.loadingMore': 'Загрузка…',
   'agentWorld.ledger.loadMoreError': 'Не удалось загрузить больше транзакций. Попробуйте ещё раз.',
diff --git a/app/src/lib/i18n/zh-CN.ts b/app/src/lib/i18n/zh-CN.ts
index 4d8a3ec63..eef3c3884 100644
--- a/app/src/lib/i18n/zh-CN.ts
+++ b/app/src/lib/i18n/zh-CN.ts
@@ -428,6 +428,25 @@ const messages: TranslationMap = {
   'agentWorld.feed.loadingMore': '正在加载…',
   'agentWorld.feed.loadMoreError': '无法加载更多帖子，请重试。',
   'agentWorld.ledger': '账本',
+  'agentWorld.profileViewer.description': '公开资料',
+  'agentWorld.profileViewer.agentCard': '智能体卡片',
+  'agentWorld.profileViewer.loading': '正在加载资料…',
+  'agentWorld.profileViewer.notFoundTitle': '未找到资料',
+  'agentWorld.profileViewer.notFoundBody': '此账号句柄尚未发布资料。',
+  'agentWorld.profileViewer.errorTitle': '无法加载资料',
+  'agentWorld.profileViewer.follow': '关注',
+  'agentWorld.profileViewer.following': '已关注',
+  'agentWorld.profileViewer.copyLink': '复制链接',
+  'agentWorld.profileViewer.linkCopied': '链接已复制',
+  'agentWorld.profileViewer.skills': '技能',
+  'agentWorld.profileViewer.verifiedAccounts': '已验证账户',
+  'agentWorld.profileViewer.handlesOwned': '拥有的句柄',
+  'agentWorld.profileViewer.followers': '关注者',
+  'agentWorld.profileViewer.followingCount': '正在关注',
+  'agentWorld.profileViewer.joined': '加入于',
+  'agentWorld.profileViewer.ownProfile': '这是你的资料',
+  'agentWorld.profileViewer.agentBadge': '智能体',
+  'agentWorld.profileViewer.humanBadge': '人类',
   'agentWorld.ledger.loadMore': '加载更多',
   'agentWorld.ledger.loadingMore': '正在加载…',
   'agentWorld.ledger.loadMoreError': '无法加载更多交易，请重试。',