diff --git a/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferenceInput.tsx b/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferenceInput.tsx
index ccdb3d5cf..d88fa5ab8 100644
--- a/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferenceInput.tsx
+++ b/apps/ai-game-creator-shell/src/features/project-workspace/ResourceReferenceInput.tsx
@@ -583,6 +583,8 @@ function ResourceReferenceEditor({
   const skipInitialDraftChangeRef = useRef(false);
   const [query, setQuery] = useState<string | null>(null);
   const [skillQuery, setSkillQuery] = useState<string | null>(null);
+  const [clientSkills, setClientSkills] = useState<SkillReference[]>([]);
+  const skillCatalogRequestedRef = useRef(false);
   const [pickerOpen, setPickerOpen] = useState(false);
   // Enter 提交要避开候选浮层。用 ref 让命令处理器读到最新状态，不必因为
   // query / pickerOpen 变化反复重注册 HIGH 优先级命令。
@@ -604,6 +606,38 @@ function ResourceReferenceEditor({
     bottom: number;
     width: number;
   } | null>(null);
+  // Skill 清单来自宿主：只在用户真正打开 `$` 候选时查一次。输入区挂载即发起
+  // Tauri 调用会让「工作区路径非法时不产生任何后端访问」的边界失效。
+  useEffect(() => {
+    if (skillQuery === null || skillCatalogRequestedRef.current) return;
+    const invoke = resolveTauriInvoke();
+    if (!invoke) return;
+    skillCatalogRequestedRef.current = true;
+    void invoke<
+      Array<{
+        name: string;
+        extensionType: string;
+        enabled: boolean;
+        status: string;
+      }>
+    >('list_client_extensions')
+      .then((items) => {
+        setClientSkills(
+          items
+            .filter(
+              (item) =>
+                item.extensionType === 'skill' &&
+                item.enabled &&
+                item.status === 'enabled',
+            )
+            .map((item) => ({ type: 'skill' as const, name: item.name })),
+        );
+      })
+      .catch(() => {
+        setClientSkills([]);
+      });
+  }, [skillQuery]);
+
   const assetsContentSignature = assetsSignature(assets);
   const versionsContentSignature = iterationsSignature(versions);
   const assetsById = useMemo(
@@ -671,7 +705,7 @@ function ResourceReferenceEditor({
   const skillOptions = useMemo(() => {
     if (skillQuery === null) return [];
     const normalized = skillQuery.trim().toLowerCase();
-    const allSkills = [...BUILTIN_SKILL_REFERENCES, ...skills];
+    const allSkills = [...BUILTIN_SKILL_REFERENCES, ...clientSkills, ...skills];
     const seen = new Set<string>();
     return allSkills
       .filter((skill) => {
@@ -685,7 +719,7 @@ function ResourceReferenceEditor({
       })
       .slice(0, 8)
       .map((skill) => new SkillMentionOption(skill));
-  }, [skillQuery, skills]);
+  }, [clientSkills, skillQuery, skills]);
 
   const triggerFn = useBasicTypeaheadTriggerMatch('@', {
     minLength: 0,
@@ -1091,79 +1125,82 @@ function ResourceReferenceEditor({
 
   const renderMentionMenu: MenuRenderFn<
     ResourceMentionOption | SkillMentionOption
-  > = useCallback((_anchorElementRef, itemProps) => {
-    const inputRect = rootRef.current?.getBoundingClientRect();
-    if (!inputRect || itemProps.options.length === 0) {
-      return null;
-    }
-    const viewportPadding = 12;
-    const menuWidth = Math.min(
-      Math.max(280, inputRect.width),
-      Math.min(420, window.innerWidth - viewportPadding * 2),
-    );
-    const left = Math.min(
-      Math.max(viewportPadding, inputRect.left),
-      Math.max(
-        viewportPadding,
-        window.innerWidth - menuWidth - viewportPadding,
-      ),
-    );
-    const availableAbove = Math.max(0, inputRect.top - viewportPadding - 8);
-    const availableBelow = Math.max(
-      0,
-      window.innerHeight - inputRect.bottom - viewportPadding - 8,
-    );
-    const openAbove = availableBelow < 160 && availableAbove > availableBelow;
-    const maxHeight = Math.max(
-      120,
-      Math.min(240, openAbove ? availableAbove : availableBelow),
-    );
-    const top = openAbove
-      ? Math.max(viewportPadding, inputRect.top - maxHeight - 8)
-      : inputRect.bottom + 8;
-    return createPortal(
-      <div
-        className="resource-reference-menu"
-        role="listbox"
-        aria-label="候选引用"
-        style={{
-          position: 'fixed',
-          top: `${top}px`,
-          left: `${left}px`,
-          width: `${menuWidth}px`,
-          maxHeight: `${maxHeight}px`,
-        }}
-      >
-        {itemProps.options.map((option, index) => (
-          <button
-            type="button"
-            role="option"
-            key={option.key}
-            ref={(element) => option.setRefElement(element)}
-            aria-selected={itemProps.selectedIndex === index}
-            className={
-              itemProps.selectedIndex === index ? 'is-active' : undefined
-            }
-            onMouseEnter={() => itemProps.setHighlightedIndex(index)}
-            onMouseDown={(event) => event.preventDefault()}
-            onClick={() => itemProps.selectOptionAndCleanUp(option)}
-          >
-            <span>
-              {'reference' in option
-                ? `@${option.reference.label}`
-                : `$${option.skill.name}`}
-            </span>
-            <small>
-              {'reference' in option
-                ? option.reference.kind
-                : (option.skill.description ?? 'Skill')}
-            </small>
-          </button>
-        ))}
-      </div>,
-      document.body,
-    );
-  }, [rootRef]);
+  > = useCallback(
+    (_anchorElementRef, itemProps) => {
+      const inputRect = rootRef.current?.getBoundingClientRect();
+      if (!inputRect || itemProps.options.length === 0) {
+        return null;
+      }
+      const viewportPadding = 12;
+      const menuWidth = Math.min(
+        Math.max(280, inputRect.width),
+        Math.min(420, window.innerWidth - viewportPadding * 2),
+      );
+      const left = Math.min(
+        Math.max(viewportPadding, inputRect.left),
+        Math.max(
+          viewportPadding,
+          window.innerWidth - menuWidth - viewportPadding,
+        ),
+      );
+      const availableAbove = Math.max(0, inputRect.top - viewportPadding - 8);
+      const availableBelow = Math.max(
+        0,
+        window.innerHeight - inputRect.bottom - viewportPadding - 8,
+      );
+      const openAbove = availableBelow < 160 && availableAbove > availableBelow;
+      const maxHeight = Math.max(
+        120,
+        Math.min(240, openAbove ? availableAbove : availableBelow),
+      );
+      const top = openAbove
+        ? Math.max(viewportPadding, inputRect.top - maxHeight - 8)
+        : inputRect.bottom + 8;
+      return createPortal(
+        <div
+          className="resource-reference-menu"
+          role="listbox"
+          aria-label="候选引用"
+          style={{
+            position: 'fixed',
+            top: `${top}px`,
+            left: `${left}px`,
+            width: `${menuWidth}px`,
+            maxHeight: `${maxHeight}px`,
+          }}
+        >
+          {itemProps.options.map((option, index) => (
+            <button
+              type="button"
+              role="option"
+              key={option.key}
+              ref={(element) => option.setRefElement(element)}
+              aria-selected={itemProps.selectedIndex === index}
+              className={
+                itemProps.selectedIndex === index ? 'is-active' : undefined
+              }
+              onMouseEnter={() => itemProps.setHighlightedIndex(index)}
+              onMouseDown={(event) => event.preventDefault()}
+              onClick={() => itemProps.selectOptionAndCleanUp(option)}
+            >
+              <span>
+                {'reference' in option
+                  ? `@${option.reference.label}`
+                  : `$${option.skill.name}`}
+              </span>
+              <small>
+                {'reference' in option
+                  ? option.reference.kind
+                  : (option.skill.description ?? 'Skill')}
+              </small>
+            </button>
+          ))}
+        </div>,
+        document.body,
+      );
+    },
+    [rootRef],
+  );
 
   const pickerReferences = useMemo(() => {
     return scopeReferences.filter((reference) => {