feat(desktop): Phase 4 — projects cards deny CTA + unbound empty state

Signed-off-by: crimsonsunset <jsangio1@gmail.com>

Author: crimsonsunset

apps/desktop/src/features/workspaces/WorkspacesPage.tsx

@@ -1049,7 +1049,11 @@ function EntryCard({
           </div>
           <div className="flex min-w-0 flex-1 flex-col">
             <div className="mb-1.5 flex min-h-[1.375rem] flex-wrap items-center gap-2">
-              {entry.kind === 'unmapped-live' && <Pill tone="amber">{t('card.unmapped')}</Pill>}
+              {entry.kind === 'unmapped-live' && (
+                <Pill tone="amber" title={t('card.deniedTooltip')}>
+                  {t('card.badgeLiveUnbound')}
+                </Pill>
+              )}
               {entry.kind === 'live-elsewhere' && (
                 <Pill tone="info">{t('card.badgeBoundElsewhere')}</Pill>
               )}
@@ -1078,6 +1082,21 @@ function EntryCard({
             >
               {hasLabel ? entry.root : '\u00A0'}
             </p>
+            {entry.kind === 'unmapped-live' && (
+              <Button
+                variant="primary"
+                size="sm"
+                className="mt-3 w-full"
+                title={t('card.deniedTooltip')}
+                onClick={(e) => {
+                  e.stopPropagation();
+                  onClick();
+                }}
+                data-testid="workspace-entry-bind-cta"
+              >
+                {t('card.deniedCta')}
+              </Button>
+            )}
           </div>
         </div>
 
@@ -1443,6 +1462,15 @@ export function EffectiveFeaturesContent({
   }
   if (!data) return null;
 
+  if (data.source === 'unbound') {
+    return (
+      <div className="text-center py-8 text-[rgb(var(--muted))]">
+        <Package className="h-8 w-8 mx-auto mb-2 opacity-50" />
+        <p className="text-sm">{t('effective.unboundEmpty')}</p>
+      </div>
+    );
+  }
+
   const allAvailable = totalCount > 0 && availableCount === totalCount;
   const partialAvailable = availableCount > 0 && availableCount < totalCount;
 

apps/desktop/src/features/workspaces/workspace-binding-panel.component.tsx

@@ -862,7 +862,7 @@ export function WorkspaceBindingPanel() {
                     </Pill>
                   )}
                   {mode === 'create-from-live' && !payload.collisionClientId && (
-                    <Pill tone="amber">{t('card.unmapped')}</Pill>
+                    <Pill tone="amber">{t('card.badgeLiveUnbound')}</Pill>
                   )}
                   {mode === 'edit' && binding && <Pill tone="neutral">{t('card.offline')}</Pill>}
                 </>
@@ -887,6 +887,14 @@ export function WorkspaceBindingPanel() {
             </div>
           ) : (
             <>
+              {mode === 'create-from-live' && !payload.collisionClientId && (
+                <div
+                  className="rounded-xl border border-amber-200/80 dark:border-amber-800/50 bg-amber-50/80 dark:bg-amber-900/15 p-4"
+                  data-testid="workspace-binding-no-tools-banner"
+                >
+                  <p className="text-sm text-amber-900 dark:text-amber-100">{t('sheet.noToolsBanner')}</p>
+                </div>
+              )}
               {mode === 'create-from-live' && payload.clientId && showMachineCallout && (
                 <div
                   className="rounded-xl border-2 border-amber-300/80 dark:border-amber-700/60 bg-amber-50/80 dark:bg-amber-900/15 p-4 space-y-3"

apps/desktop/src/lib/api/workspaceBindings.ts

@@ -187,7 +187,7 @@ export interface EffectiveFeatureSetSummary {
 
 export interface WorkspaceEffectiveFeatures {
   workspace_root: string;
-  /** `binding` when a saved WorkspaceBinding matched; `unbound` when no binding matched — an unbound folder falls back to the default Space's Starter FS, so `feature_sets` is what a live session here actually sees until the user attaches a binding. */
+  /** `binding` when a saved WorkspaceBinding matched; `unbound` when no binding matched — caller has zero backend tools by default. Bind to enable access. */
   source: 'binding' | 'unbound';
   binding_id: string | null;
   space_id: string;

apps/desktop/src/locales/en/workspaces.json

@@ -1,6 +1,6 @@
 {
   "title": "Projects",
-  "subtitle": "Each binding tells mcpmux which Space and feature set a folder routes into. Folders without a binding fall back to the default Space.",
+  "subtitle": "Each binding tells mcpmux which Space and feature set a folder routes into. Folders without a binding have no backend tools until you bind them.",
   "searchPlaceholder": "Search by path, space, or feature set…",
   "filter": {
     "all": "All",
@@ -35,7 +35,7 @@
   },
   "confirm": {
     "removeTitle": "Remove binding",
-    "removeMessage": "Sessions matching \"{{path}}\" will fall back to the default Space. You can recreate the binding anytime.",
+    "removeMessage": "Sessions matching \"{{path}}\" will have no backend tools until you create a new binding.",
     "removeLabel": "Remove"
   },
   "card": {
@@ -44,6 +44,8 @@
     "offline": "Offline",
     "live": "Live",
     "badgeLiveUnbound": "UNBOUND",
+    "deniedCta": "Bind to enable tools",
+    "deniedTooltip": "This folder has no tools until you bind it to a workspace",
     "badgeBoundElsewhere": "BOUND ELSEWHERE",
     "notConfigured": "Not configured",
     "addBinding": "Add binding",
@@ -107,7 +109,8 @@
     "sourceBinding": "binding",
     "sourceUnbound": "unbound",
     "sourceBindingTooltip": "A workspace binding matched this folder — live sessions reporting it route here.",
-    "sourceUnboundTooltip": "No binding matches this folder. A live roots-capable session would be denied; the FeatureSet shown is a preview of what binding here would expose.",
+    "sourceUnboundTooltip": "No backend tools are active — this folder has no binding yet",
+    "unboundEmpty": "No tools on this session yet. Bind this folder to enable access.",
     "availableOf": "{{available}} of {{total}} available",
     "allReady": "All ready",
     "partial": "Partial",
@@ -195,7 +198,8 @@
     "titleCollision": "Create a binding for this client",
     "titleNew": "This folder is using your Starter set",
     "descCollision": "This path is already bound for another MCP client. Save a client-scoped binding so this machine gets its own tool set.",
-    "descNew": "You just opened this folder in a connected app. It's already configured with your default Starter tools. Pick a different Space or feature set below to change what it gets, or close to keep the Starter.",
+    "descNew": "No backend tools are active on this session. Creating a binding enables tool access.",
+    "noToolsBanner": "No backend tools are active on this session. Creating a binding enables tool access.",
     "space": "Space",
     "toolSet": "Tool set",
     "noFeatureSets": "No feature sets in this space yet.",