diff --git a/src/apps/officer-web/Screens/Dashboard/Layout/Header/JobsIndicator.tsx b/src/apps/officer-web/Screens/Dashboard/Layout/Header/JobsIndicator.tsx
index 22072fef..64924d25 100644
--- a/src/apps/officer-web/Screens/Dashboard/Layout/Header/JobsIndicator.tsx
+++ b/src/apps/officer-web/Screens/Dashboard/Layout/Header/JobsIndicator.tsx
@@ -2,21 +2,41 @@ import { useState, useEffect } from 'react';
 import { Link } from 'react-router';
 import { Loader2, ListOrdered } from 'lucide-react';
 import { useClient } from 'hooks/useClient';
+import { useCapabilities } from 'hooks/useCapabilities';
 
 type Counts = { running: number; runningJobId: string | null; queued: number };
 
-// Always-present header badges: how many jobs are running (→ the running job) and queued (→ the queue).
+// Header badges: how many jobs are running (→ the running job) and queued (→ the queue).
+//
+// Shown only to an account that holds `tasks`, which today means the owner — the queue runs scripts as the
+// server owner and is `kind: 'execution'`. It used to render for everyone and poll `/jobs/counts` every
+// three seconds regardless, so a member's console filled with 403s at 20 a minute and the header offered two
+// links to a screen they cannot open. Neither is a security problem; both are the app lying about what it is.
 export const JobsIndicator = () => {
   const client = useClient();
+  const { can } = useCapabilities();
+  const allowed = can('tasks');
   const [counts, setCounts] = useState<Counts>({ running: 0, runningJobId: null, queued: 0 });
 
   useEffect(() => {
+    // Guarded inside the effect as well as at the render below, because the timer is the expensive half:
+    // an early return in the body would still leave an interval running from a previous render.
+    if (!allowed) return;
     let alive = true;
-    const load = () => client.get<Counts>('/jobs/counts').then((c) => alive && setCounts(c)).catch(() => {});
+    const load = () =>
+      client
+        .get<Counts>('/jobs/counts')
+        .then((c) => alive && setCounts(c))
+        .catch(() => {});
     load();
     const timer = setInterval(load, 3000);
-    return () => { alive = false; clearInterval(timer); };
-  }, []);
+    return () => {
+      alive = false;
+      clearInterval(timer);
+    };
+  }, [allowed]);
+
+  if (!allowed) return null;
 
   const pill = 'flex items-center gap-1 h-8 px-2.5 rounded-full text-xs font-semibold tabular-nums transition-colors';
 
diff --git a/src/apps/officer-web/Screens/Dashboard/Layout/Rescan/RescanButton.tsx b/src/apps/officer-web/Screens/Dashboard/Layout/Rescan/RescanButton.tsx
index 3cd6ff48..ea4412f5 100644
--- a/src/apps/officer-web/Screens/Dashboard/Layout/Rescan/RescanButton.tsx
+++ b/src/apps/officer-web/Screens/Dashboard/Layout/Rescan/RescanButton.tsx
@@ -3,6 +3,7 @@ import { RotateCw } from 'lucide-react';
 import { useQueryClient } from '@tanstack/react-query';
 import { toast } from 'sonner';
 import { useClient } from 'hooks/useClient';
+import { useCapabilities } from 'hooks/useCapabilities';
 
 type RescanResponse = { ok: boolean; counts: Record<string, number> };
 
@@ -13,8 +14,14 @@ const ITEM_QUERY_KEYS = ['tasks', 'task-categories', 'skills', 'tools', 'process
 export function RescanButton() {
   const client = useClient();
   const qc = useQueryClient();
+  const { can } = useCapabilities();
   const [loading, setLoading] = useState(false);
 
+  // `POST /api/rescan` belongs to the `items` capability — skills, tools, agents and processes on the
+  // owner's disk, `kind: 'execution'`. A member pressing this got a 403 and a red toast about a feature
+  // whose existence is not their business.
+  if (!can('items')) return null;
+
   const rescan = async () => {
     if (loading) return;
     setLoading(true);
diff --git a/src/apps/officer-web/Screens/Dashboard/Settings/UserManagement/PermissionsSection.tsx b/src/apps/officer-web/Screens/Dashboard/Settings/UserManagement/PermissionsSection.tsx
index 0684ce6f..1ab766c5 100644
--- a/src/apps/officer-web/Screens/Dashboard/Settings/UserManagement/PermissionsSection.tsx
+++ b/src/apps/officer-web/Screens/Dashboard/Settings/UserManagement/PermissionsSection.tsx
@@ -1,7 +1,7 @@
 import { useEffect, useMemo, useState } from 'react';
 import { useQuery, useQueryClient } from '@tanstack/react-query';
 import { toast } from 'sonner';
-import { Loader2, Lock } from 'lucide-react';
+import { Loader2, Lock, PackageOpen } from 'lucide-react';
 import { useClient } from 'hooks/useClient';
 import { CAPABILITIES_QUERY_KEY } from 'hooks/useCapabilities';
 import { Button } from '@/components/ui/button';
@@ -20,12 +20,17 @@ type CapabilityInfo = {
   description: string;
   routes: string[];
   hasPersonalWrites: boolean;
+  /** Confined: the grant does nothing until the member has a Linux account on this machine. */
+  needsOsAccount: boolean;
 };
 
 type Grant = { role: string; capability: string; level: 'read' | 'write' };
 
 type CapabilitiesResponse = {
+  /** Grantable AND installed. What this server can currently do. */
   capabilities: CapabilityInfo[];
+  /** Grantable, but no sidecar installed — listed so their absence reads as a fact, not a bug. */
+  notInstalled: CapabilityInfo[];
   roles: string[];
   grants: Grant[];
 };
@@ -133,6 +138,13 @@ export const PermissionsSection = () => {
               <div className="min-w-0">
                 <div className="text-sm font-medium">{capability.label}</div>
                 <div className="text-xs text-muted-foreground">{capability.description}</div>
+                {/* Said on the row rather than in a footnote, because the grant genuinely does nothing
+                    without it and the fix is on the Accounts tab two clicks away. */}
+                {capability.needsOsAccount && (
+                  <div className="mt-0.5 text-xs text-amber-500">
+                    Needs a Linux account — grant does nothing until the member has one
+                  </div>
+                )}
               </div>
               <Select
                 value={level}
@@ -152,6 +164,19 @@ export const PermissionsSection = () => {
         })}
       </div>
 
+      {/* Absent because nothing is installed, not because they cannot be shared — a different sentence from
+          the one below, and the two used to be indistinguishable (both were simply missing). */}
+      {data.notInstalled.length > 0 && (
+        <div className="flex gap-3 rounded-lg border border-dashed p-3 text-xs text-muted-foreground">
+          <PackageOpen className="mt-0.5 h-4 w-4 shrink-0" />
+          <div>
+            <div className="font-medium text-foreground">Nothing installed for these yet</div>
+            {data.notInstalled.map((c) => c.label).join(', ')} — each appears here once you install it from the App
+            store. Granting something this server cannot do would only produce a refusal the person could not explain.
+          </div>
+        </div>
+      )}
+
       {/* Stated rather than silently omitted. An owner who cannot find the Terminal checkbox will assume
           the screen is incomplete and go looking for it; saying why it does not exist is the difference
           between a deliberate design and a missing feature. */}
@@ -159,10 +184,14 @@ export const PermissionsSection = () => {
         <Lock className="mt-0.5 h-4 w-4 shrink-0" />
         <div>
           <div className="font-medium text-foreground">Not listed, and not grantable</div>
-          The terminal, chat, tasks, files, the code editor, the desktop and the browser all run as the server owner, in
-          the server owner&rsquo;s home directory, with full permissions. Granting one of them would hand over the
-          machine rather than a feature, so there is no level at which they can be shared. The wallet, Headscale and the
-          server settings stay with the owner for the same reason.
+          Chat, tasks, capability authoring, the desktop and the browser run as the server owner, in the server
+          owner&rsquo;s home directory, with full permissions. Granting one would hand over the machine rather than a
+          feature, so there is no level at which they can be shared. The wallet, Headscale and the server settings stay
+          with the owner for the same reason.
+          <div className="mt-1.5">
+            Files is the exception, and only because of how it is built: a member with a Linux account on this machine
+            gets their own home, enforced by the operating system rather than by a check in the app.
+          </div>
         </div>
       </div>
     </div>
diff --git a/src/servers/api/users/capabilities-routes.ts b/src/servers/api/users/capabilities-routes.ts
index c84a201a..3d8944ec 100644
--- a/src/servers/api/users/capabilities-routes.ts
+++ b/src/servers/api/users/capabilities-routes.ts
@@ -76,17 +76,39 @@ selfCapabilitiesRouter.get('/capabilities', async (ctx) => {
 export const capabilityAdminRouter = createRouter();
 
 capabilityAdminRouter.get('/capabilities', ownerGate, async (ctx) => {
+  // Only what this server can actually do RIGHT NOW.
+  //
+  // The same subtraction the dock already makes, applied to the granting UI — which was showing all
+  // fourteen app capabilities on a fresh install where none of their sidecars existed. Offering to grant
+  // Photos on a machine with no Immich is not a permission decision, it is a menu of things that would
+  // 403 for a different reason than the owner thinks.
+  //
+  // Fail open on a degraded read: `capabilityAvailability` returns an empty `unavailable` set when it
+  // cannot see install state, so the list falls back to everything rather than to nothing. An owner whose
+  // Permissions screen emptied itself because one query failed would reasonably conclude the feature broke.
+  const { unavailable } = await capabilityAvailability();
+
+  const describe = (c: (typeof GRANTABLE_CAPABILITIES)[number]) => ({
+    key: c.key,
+    label: c.label,
+    description: c.description,
+    // What the owner is actually deciding about, shown so the grant is legible rather than a name.
+    routes: c.routes ?? [],
+    hasPersonalWrites: !!c.personal?.length,
+    /** `confined` needs a Linux account per member to mean anything — the UI says so next to the row. */
+    needsOsAccount: c.kind === 'confined',
+  });
+
   return ctx.json({
-    // Only the grantable kind is offered. `execution` and `admin` are deliberately not in this list:
-    // a UI that shows a checkbox it will refuse to honour is worse than one that never offered it.
-    capabilities: GRANTABLE_CAPABILITIES.map((c) => ({
-      key: c.key,
-      label: c.label,
-      description: c.description,
-      // What the owner is actually deciding about, shown so the grant is legible rather than a name.
-      routes: c.routes ?? [],
-      hasPersonalWrites: !!c.personal?.length,
-    })),
+    // Only the grantable kinds are offered. `execution` and `admin` are deliberately absent: a UI that
+    // shows a checkbox it will refuse to honour is worse than one that never offered it.
+    capabilities: GRANTABLE_CAPABILITIES.filter((c) => !unavailable.has(c.key)).map(describe),
+    /**
+     * Grantable, but their sidecar is not installed. Returned rather than dropped so the screen can say
+     * "these appear once you install them" — otherwise an owner who remembers seeing Photos here concludes
+     * the list is broken, and the honest answer is one sentence.
+     */
+    notInstalled: GRANTABLE_CAPABILITIES.filter((c) => unavailable.has(c.key)).map(describe),
     // Roles a grant may name. Super Admin is excluded: the owner bypasses this table entirely, and the
     // database refuses a row for that role.
     roles: USER_ROLES.filter((r) => r !== 'Super Admin'),
diff --git a/src/servers/app-store/availability.ts b/src/servers/app-store/availability.ts
index e9e09c22..fa775a7e 100644
--- a/src/servers/app-store/availability.ts
+++ b/src/servers/app-store/availability.ts
@@ -21,8 +21,18 @@ import { CATALOGUE, type CatalogueEntry } from './catalogue';
 // puts the rule in the UI, where a member's dock and an owner's dock can drift apart, and where a
 // third-party plugin would have to be taught about it. Subtracting server-side keeps one answer.
 
-/** Capability key → the sidecar that has to be installed for it to mean anything. */
-const CAPABILITY_TO_SIDECAR = new Map(CATALOGUE.filter((e) => e.capability).map((e) => [e.capability as string, e.id]));
+/**
+ * Capability key → the sidecar that has to be installed for it to mean anything.
+ *
+ * Includes `alsoServes`, because one sidecar can back more than one capability: Headscale serves both the
+ * owner's tailnet administration and a member enrolling their own device, and only listing the first left the
+ * second looking available on a machine that had no Headscale.
+ */
+const CAPABILITY_TO_SIDECAR = new Map(
+  CATALOGUE.flatMap((entry) =>
+    [entry.capability, ...(entry.alsoServes ?? [])].filter((key): key is string => !!key).map((key) => [key, entry.id]),
+  ) as Array<[string, string]>,
+);
 
 export type Availability = {
   /**
diff --git a/src/servers/app-store/catalogue.ts b/src/servers/app-store/catalogue.ts
index 7c0ec455..8cd99fa1 100644
--- a/src/servers/app-store/catalogue.ts
+++ b/src/servers/app-store/catalogue.ts
@@ -110,8 +110,20 @@ export type CatalogueEntry = {
   /**
    * The capability this sidecar backs, from `capabilities/registry.ts`. Null where the sidecar has no
    * user-facing surface of its own (notify produces notifications for other features).
+   *
+   * This is also the key the sidecar's dock manifest is filtered by, which is why it is one value and not a
+   * list — a tile belongs to one feature.
    */
   capability: string | null;
+  /**
+   * Other capabilities that stop working when this sidecar is absent, for availability only.
+   *
+   * Headscale is the case: one sidecar serves both `headscale` (administering the tailnet, owner-only) and
+   * `vpn` (a member enrolling their own device). With only `capability` to go on, `vpn` was never subtracted,
+   * so the Permissions screen offered it on a machine with no Headscale at all — a grant that would have
+   * produced a refusal the owner could not account for.
+   */
+  alsoServes?: string[];
   /**
    * Asked when the user picks `existing`. Skipped entirely for `provisioned`, where we already know the
    * answers because we wrote the compose file.
@@ -328,6 +340,8 @@ export const CATALOGUE: CatalogueEntry[] = [
     members: 'none',
     modes: ['existing'],
     capability: 'headscale',
+    // A member enrolling their own device is the same sidecar. See `alsoServes`.
+    alsoServes: ['vpn'],
     existingFields: [
       { key: 'url', label: 'Headscale URL', type: 'url', required: true },
       { key: 'secret', label: 'API key', type: 'secret', required: true },
diff --git a/src/servers/capabilities/registry.ts b/src/servers/capabilities/registry.ts
index 16610dc9..3d52d268 100644
--- a/src/servers/capabilities/registry.ts
+++ b/src/servers/capabilities/registry.ts
@@ -235,11 +235,20 @@ export const CAPABILITIES: Capability[] = [
     // bound to the caller. Administering the tailnet is `headscale`, which is admin-only.
     personal: ['/'],
   },
+  // Core, not app — and this was a real defect, not a preference. `/api/dashboards` is not a feature, it is
+  // the per-user key-value store where EVERY workspace screen keeps its layout (`screens/files`,
+  // `ws-layout-*`, panel config). `WorkspaceView` renders nothing until that store has loaded, so gating it
+  // meant a member with `files` granted got a completely blank Files screen and no request to
+  // /api/file-browser at all — the panel never mounted. Same for Terminal, Chat and every other screen.
+  //
+  // It is entirely `personal` and always was: every row is keyed to the caller. There is nothing here to
+  // withhold, and withholding it does not restrict an account, it breaks it — which is exactly the
+  // definition of `core` at the top of this file.
   {
     key: 'dashboards',
-    label: 'Dashboards',
-    description: 'Your own dashboards and saved layouts',
-    kind: 'app',
+    label: 'Screen layouts and dashboards',
+    description: 'Where your own screen layouts and dashboards are saved',
+    kind: 'core',
     api: ['/dashboards'],
     routes: ['/dashboards'],
     personal: ['/'],
diff --git a/src/workspaces/officerdev/src/MusicPlayer/MusicPlayerHost.tsx b/src/workspaces/officerdev/src/MusicPlayer/MusicPlayerHost.tsx
index 5f042c9e..e926657e 100644
--- a/src/workspaces/officerdev/src/MusicPlayer/MusicPlayerHost.tsx
+++ b/src/workspaces/officerdev/src/MusicPlayer/MusicPlayerHost.tsx
@@ -1,6 +1,7 @@
 import { useCallback, useEffect, useRef, useState } from 'react';
 import { Link, useLocation, useNavigate } from 'react-router';
 import { useClient } from 'hooks/useClient';
+import { useCapabilities } from 'hooks/useCapabilities';
 import { Play, Pause, SkipBack, SkipForward, X, Volume2, VolumeX, Loader2, MicVocal } from 'lucide-react';
 import { SeekBar } from '../apps/FileViewer/renderers/SeekBar';
 import { MusicHeart } from '../apps/Music/MusicHeart';
@@ -23,6 +24,8 @@ const MUSIC_API = '/api/music';
 
 export const MusicPlayerHost = () => {
   const { token, get, put, delete: del } = useClient();
+  const { can } = useCapabilities();
+  const canUseMusic = can('music');
   const navigate = useNavigate();
   const { pathname } = useLocation();
   const { current, index, queue, playing, toggle, next, prev, setPlaying, syncIndex, close, loadQueue } =
@@ -119,8 +122,12 @@ export const MusicPlayerHost = () => {
 
   // Restore the saved "currently playing" on first load — paused, at its position — so a reload/return
   // lands back on the track. Skipped when a queue already exists (an in-app nav kept player state).
+  //
+  // Also skipped without the `music` capability. This host is mounted by the shell for every account, so it
+  // used to reach for `/music/now-playing` on a member's very first paint and 403.
   useEffect(() => {
     if (restoredRef.current) return;
+    if (!canUseMusic) return;
     restoredRef.current = true;
     if (queue.length) return;
     (async () => {
diff --git a/src/workspaces/state/src/useAccessPolicy.ts b/src/workspaces/state/src/useAccessPolicy.ts
index ab23f65b..ddecf5d7 100644
--- a/src/workspaces/state/src/useAccessPolicy.ts
+++ b/src/workspaces/state/src/useAccessPolicy.ts
@@ -2,6 +2,7 @@ import { useCallback } from 'react';
 import { useQuery, useQueryClient } from '@tanstack/react-query';
 import { useClient } from 'hooks/useClient';
 import { useAuth } from 'hooks/useAuth';
+import { useCapabilities } from 'hooks/useCapabilities';
 
 type AccessPolicy = {
   allowedModels: string[];
@@ -12,11 +13,13 @@ const QUERY_KEY = ['ACCESS_POLICY'];
 export function useAccessPolicy() {
   const client = useClient();
   const { isAuthenticated } = useAuth();
+  // Under `/server-settings`, so `server-admin`: owner only. Authentication alone was never the right gate.
+  const { isOwner } = useCapabilities();
   const queryClient = useQueryClient();
 
   const { data: policy = { allowedModels: [] } } = useQuery<AccessPolicy>({
     queryKey: QUERY_KEY,
-    enabled: isAuthenticated,
+    enabled: isAuthenticated && isOwner,
     queryFn: () => client.get<AccessPolicy>('/server-settings/chat-providers/access-policy'),
     staleTime: 5 * 60 * 1000,
   });
diff --git a/src/workspaces/state/src/useDashboardState.ts b/src/workspaces/state/src/useDashboardState.ts
index df8303fa..c0445a4b 100644
--- a/src/workspaces/state/src/useDashboardState.ts
+++ b/src/workspaces/state/src/useDashboardState.ts
@@ -16,7 +16,11 @@ export function useDashboardState<T>(key: string, defaultValue: T) {
   const clientRef = useRef(client);
   clientRef.current = client;
 
-  const { data: state = {}, isSuccess } = useQuery<UserState>({
+  const {
+    data: state = {},
+    isSuccess,
+    isError,
+  } = useQuery<UserState>({
     queryKey: QUERY_KEY,
     enabled: isAuthenticated,
     queryFn: () => client.get<UserState>('/dashboards'),
@@ -72,7 +76,17 @@ export function useDashboardState<T>(key: string, defaultValue: T) {
     [key, defaultValue, queryClient],
   );
 
-  return { key, value, setValue, isLoaded: isSuccess };
+  // `isLoaded` is true on a FAILED fetch as well as a successful one, and the distinction is `loadFailed`.
+  //
+  // Consumers use `isLoaded` to decide whether to render at all — `WorkspaceView` returns null without it.
+  // While that meant only "the request is in flight" it was fine. The moment `/dashboards` could answer 403,
+  // it meant a permanently blank screen: no layout, no panels, no request to the feature the screen is for,
+  // and nothing on screen to say why. A screen that cannot remember its layout should still BE a screen.
+  //
+  // So a failed load resolves to the caller's `defaultValue` and renders. `loadFailed` is exposed so a
+  // consumer can say "not saved" rather than pretend, and `setValue` still attempts its PATCH — if the
+  // failure was transient the write succeeds, and if it was a 403 the existing revert path reports it.
+  return { key, value, setValue, isLoaded: isSuccess || isError, loadFailed: isError };
 }
 
 /**
diff --git a/src/workspaces/state/src/useModels.ts b/src/workspaces/state/src/useModels.ts
index c9f23502..38605be3 100644
--- a/src/workspaces/state/src/useModels.ts
+++ b/src/workspaces/state/src/useModels.ts
@@ -1,6 +1,7 @@
 import { useQuery } from '@tanstack/react-query';
 import { useClient } from 'hooks/useClient';
 import { useAuth } from 'hooks/useAuth';
+import { useCapabilities } from 'hooks/useCapabilities';
 import { useAccessPolicy } from './useAccessPolicy';
 import { useSettings } from './useSettings';
 import type { ModelOption } from 'officerdev';
@@ -26,10 +27,13 @@ export function getHostHome(): string {
 export function useModels() {
   const client = useClient();
   const { isAuthenticated } = useAuth();
+  // `/chat` is `kind: 'execution'` — the agent runs unsandboxed as the server owner, so it is owner-only and
+  // never grantable. The model list is no use to anyone who cannot open a chat.
+  const { can } = useCapabilities();
 
   const { data: models = [] } = useQuery<ModelOption[]>({
     queryKey: ['CHAT_MODELS'],
-    enabled: isAuthenticated,
+    enabled: isAuthenticated && can('chat'),
     queryFn: async () => {
       const data = await client.get<{
         models: ModelOption[];
diff --git a/src/workspaces/state/src/usePlans.ts b/src/workspaces/state/src/usePlans.ts
index f193d281..6e837702 100644
--- a/src/workspaces/state/src/usePlans.ts
+++ b/src/workspaces/state/src/usePlans.ts
@@ -1,14 +1,16 @@
 import { useAuth } from 'hooks/useAuth';
 import { useClient } from 'hooks/useClient';
+import { useCapabilities } from 'hooks/useCapabilities';
 import { useQuery } from '@tanstack/react-query';
 
 export const usePlans = () => {
   const client = useClient();
   const { isAuthenticated } = useAuth();
+  const { can } = useCapabilities();
 
   const { data: plans = [] } = useQuery<string[]>({
     queryKey: ['PLANS'],
-    enabled: isAuthenticated,
+    enabled: isAuthenticated && can('plans'),
     queryFn: () => client.get<string[]>('/plans'),
   });
 
diff --git a/src/workspaces/state/src/useServerSettings.ts b/src/workspaces/state/src/useServerSettings.ts
index 0ee23aba..2b821c6e 100644
--- a/src/workspaces/state/src/useServerSettings.ts
+++ b/src/workspaces/state/src/useServerSettings.ts
@@ -1,6 +1,7 @@
 import { useCallback } from 'react';
 import { useQuery, useQueryClient } from '@tanstack/react-query';
 import { useClient } from 'hooks/useClient';
+import { useCapabilities } from 'hooks/useCapabilities';
 
 type AIHarnesses = {
   claudeCode: boolean;
@@ -18,8 +19,14 @@ export const useServerSettings = () => {
   const client = useClient();
   const queryClient = useQueryClient();
 
+  // `/server-settings` is the `server-admin` capability: owner only, and not grantable at any level. This
+  // hook is mounted by shell components that every account loads, so without the guard a member's first
+  // paint fired a 403 at it.
+  const { isOwner } = useCapabilities();
+
   const { data: settings, isLoading } = useQuery({
     queryKey: SETTINGS_KEY,
+    enabled: isOwner,
     queryFn: () => client.get<ServerSettings>('/server-settings/settings'),
   });