diff --git a/src/workspaces/officerdev/src/apps/Music/MusicBrowser.tsx b/src/workspaces/officerdev/src/apps/Music/MusicBrowser.tsx
index bbd1d2e7..da506926 100644
--- a/src/workspaces/officerdev/src/apps/Music/MusicBrowser.tsx
+++ b/src/workspaces/officerdev/src/apps/Music/MusicBrowser.tsx
@@ -1,21 +1,42 @@
-import { useState, useEffect } from 'react';
+import { useState, useEffect, type ReactNode } from 'react';
 import { useClient } from 'hooks/useClient';
 import { usePanelChannel } from 'hooks/usePanelChannel';
 import { Library, Music2, ChevronLeft, Folder } from 'lucide-react';
 import {
   MUSIC_ROOT,
   MUSIC_CWD_CHANNEL,
+  coverUrl,
   toRel,
   type LsResult,
   type Manifest,
   type ManifestAlbum,
 } from './shared';
 
+// A row's leading thumbnail: the folder's indexed cover (its folder.jpg/cover.jpg, server-compressed),
+// falling back to an icon when it has none or the image fails to load.
+const RowThumb = ({ src, fallback }: { src: string | null; fallback: ReactNode }) => {
+  const [failed, setFailed] = useState(false);
+  useEffect(() => setFailed(false), [src]);
+  return (
+    <div className="flex h-10 w-10 shrink-0 items-center justify-center overflow-hidden rounded bg-muted">
+      {src && !failed ? (
+        <img src={src} alt="" className="h-full w-full object-cover" onError={() => setFailed(true)} />
+      ) : (
+        fallback
+      )}
+    </div>
+  );
+};
+
+// Hidden files/folders (dotfiles like .claude, .git) never belong in the library listing.
+const visibleDirs = (r: LsResult) =>
+  r.entries.filter((e) => e.type === 'directory' && !e.name.startsWith('.')).map((e) => e.name).sort();
+
 // Left panel of the /music workspace — a single-column drill-down LIST navigator (libraries →
 // artists → albums as list items; never a grid). Publishes the selected path to the 'music:cwd'
 // channel; MusicDetail (right panel) renders the rich detail (covers/grids/tracklist).
 export const MusicBrowser = () => {
-  const { get } = useClient();
+  const { get, token } = useClient();
   const [cwd, setCwd] = usePanelChannel<string | null>(MUSIC_CWD_CHANNEL, null);
   const [manifest, setManifest] = useState<Record<string, ManifestAlbum>>({});
   const [libraries, setLibraries] = useState<string[]>([]);
@@ -26,7 +47,7 @@ export const MusicBrowser = () => {
       .then((m) => setManifest(m.albums))
       .catch(() => setManifest({}));
     get<LsResult>(`/file-browser/ls?path=${encodeURIComponent(MUSIC_ROOT)}`)
-      .then((r) => setLibraries(r.entries.filter((e) => e.type === 'directory').map((e) => e.name).sort()))
+      .then((r) => setLibraries(visibleDirs(r)))
       .catch(() => setLibraries([]));
   }, []);
 
@@ -45,7 +66,7 @@ export const MusicBrowser = () => {
     let cancelled = false;
     get<LsResult>(`/file-browser/ls?path=${encodeURIComponent(navFolder)}`)
       .then((r) => {
-        if (!cancelled) setFolders(r.entries.filter((e) => e.type === 'directory').map((e) => e.name).sort());
+        if (!cancelled) setFolders(visibleDirs(r));
       })
       .catch(() => {});
     return () => {
@@ -60,6 +81,7 @@ export const MusicBrowser = () => {
   };
 
   const crumbs = navFolder ? navFolder.slice(MUSIC_ROOT.length + 1).split('/') : [];
+  const coverFor = (childRel: string) => (manifest[childRel]?.cover ? coverUrl(childRel, token) : null);
 
   return (
     <div className="flex h-full flex-col overflow-y-auto p-3">
@@ -68,8 +90,8 @@ export const MusicBrowser = () => {
         onClick={() => setCwd(null)}
         className="flex items-center gap-2 px-2 pb-2 text-left text-foreground"
       >
-        <Music2 size={18} className="text-primary" />
-        <span className="font-semibold">Music</span>
+        <Music2 size={20} className="text-primary" />
+        <span className="text-lg font-semibold">Music</span>
       </button>
 
       {!navFolder ? (
@@ -77,17 +99,20 @@ export const MusicBrowser = () => {
           <div className="flex items-center gap-2 px-2 pb-1 text-xs font-medium uppercase tracking-wide text-muted-foreground">
             <Library size={13} /> Libraries
           </div>
-          {libraries.map((lib) => (
-            <button
-              key={lib}
-              type="button"
-              onClick={() => setCwd(`${MUSIC_ROOT}/${lib}`)}
-              className="truncate rounded-md px-2 py-1.5 text-left text-sm text-muted-foreground hover:bg-muted/60 hover:text-foreground"
-            >
-              {lib}
-            </button>
-          ))}
-          {!libraries.length && <span className="px-2 text-sm text-muted-foreground">No libraries</span>}
+          <div className="flex flex-col gap-1.5">
+            {libraries.map((lib) => (
+              <button
+                key={lib}
+                type="button"
+                onClick={() => setCwd(`${MUSIC_ROOT}/${lib}`)}
+                className="flex items-center gap-3 truncate rounded-md px-2 py-2 text-left text-base text-muted-foreground hover:bg-muted/60 hover:text-foreground"
+              >
+                <RowThumb src={coverFor(lib)} fallback={<Library size={18} className="text-muted-foreground" />} />
+                <span className="truncate">{lib}</span>
+              </button>
+            ))}
+            {!libraries.length && <span className="px-2 text-base text-muted-foreground">No libraries</span>}
+          </div>
         </>
       ) : (
         <>
@@ -99,20 +124,22 @@ export const MusicBrowser = () => {
             <ChevronLeft size={13} className="shrink-0" />
             <span className="truncate">{crumbs.join(' / ')}</span>
           </button>
-          {folders.map((f) => (
-            <button
-              key={f}
-              type="button"
-              onClick={() => setCwd(`${navFolder}/${f}`)}
-              className={`flex items-center gap-2 truncate rounded-md px-2 py-1.5 text-left text-sm ${
-                selected === f ? 'bg-muted text-foreground' : 'text-muted-foreground hover:bg-muted/60 hover:text-foreground'
-              }`}
-            >
-              <Folder size={13} className="shrink-0 text-muted-foreground" />
-              <span className="truncate">{f}</span>
-            </button>
-          ))}
-          {!folders.length && <span className="px-2 py-2 text-sm text-muted-foreground">No subfolders</span>}
+          <div className="flex flex-col gap-1.5">
+            {folders.map((f) => (
+              <button
+                key={f}
+                type="button"
+                onClick={() => setCwd(`${navFolder}/${f}`)}
+                className={`flex items-center gap-3 truncate rounded-md px-2 py-2 text-left text-base ${
+                  selected === f ? 'bg-muted text-foreground' : 'text-muted-foreground hover:bg-muted/60 hover:text-foreground'
+                }`}
+              >
+                <RowThumb src={coverFor(toRel(`${navFolder}/${f}`))} fallback={<Folder size={18} className="text-muted-foreground" />} />
+                <span className="truncate">{f}</span>
+              </button>
+            ))}
+            {!folders.length && <span className="px-2 py-2 text-base text-muted-foreground">No subfolders</span>}
+          </div>
         </>
       )}
     </div>
diff --git a/src/workspaces/officerdev/src/apps/Music/MusicDetail.tsx b/src/workspaces/officerdev/src/apps/Music/MusicDetail.tsx
index 75dd1a36..1a760950 100644
--- a/src/workspaces/officerdev/src/apps/Music/MusicDetail.tsx
+++ b/src/workspaces/officerdev/src/apps/Music/MusicDetail.tsx
@@ -58,7 +58,7 @@ export const MusicDetail = () => {
       .then((m) => setManifest(m.albums))
       .catch(() => setManifest({}));
     get<LsResult>(`/file-browser/ls?path=${encodeURIComponent(MUSIC_ROOT)}`)
-      .then((r) => setLibraries(r.entries.filter((e) => e.type === 'directory').map((e) => e.name).sort()))
+      .then((r) => setLibraries(r.entries.filter((e) => e.type === 'directory' && !e.name.startsWith('.')).map((e) => e.name).sort()))
       .catch(() => setLibraries([]));
   }, []);
 
@@ -80,7 +80,7 @@ export const MusicDetail = () => {
     get<LsResult>(`/file-browser/ls?path=${encodeURIComponent(cwd)}`)
       .then(async (r) => {
         if (cancelled) return;
-        setFolders(r.entries.filter((e) => e.type === 'directory').map((e) => e.name).sort());
+        setFolders(r.entries.filter((e) => e.type === 'directory' && !e.name.startsWith('.')).map((e) => e.name).sort());
         const audio = r.entries.filter((e) => e.type === 'file' && isAudio(e.name)).map((e) => e.name);
         if (audio.length) {
           try {