diff --git a/web/pages/Assistants.tsx b/web/pages/Assistants.tsx
index b5baaf3..dbc818e 100644
--- a/web/pages/Assistants.tsx
+++ b/web/pages/Assistants.tsx
@@ -2089,7 +2089,9 @@ export const DebugDrawer: React.FC<{
   const userDraftIndexRef = useRef<number | null>(null);
   const lastUserFinalRef = useRef<string>('');
   const debugVolumePercentRef = useRef<number>(50);
+  const clientToolEnabledMapRef = useRef<Record<string, boolean>>(clientToolEnabledMap);
   const isClientToolEnabled = (toolId: string) => clientToolEnabledMap[toolId] !== false;
+  const isClientToolEnabledLive = (toolId: string) => clientToolEnabledMapRef.current[toolId] !== false;
   const selectedToolSchemas = useMemo(() => {
     const ids = Array.from(new Set([...(assistant.tools || []), ...DEBUG_CLIENT_TOOLS.map((item) => item.id)]));
     const byId = new Map(tools.map((t) => [t.id, t]));
@@ -2215,6 +2217,10 @@ export const DebugDrawer: React.FC<{
     }
   }, [clientToolEnabledMap]);
 
+  useEffect(() => {
+    clientToolEnabledMapRef.current = clientToolEnabledMap;
+  }, [clientToolEnabledMap]);
+
   // Auto-scroll logic
   useEffect(() => {
       if (scrollRef.current) {
@@ -3102,7 +3108,7 @@ export const DebugDrawer: React.FC<{
               output: { message: `Unhandled client tool '${toolName}'` },
               status: { code: 501, message: 'not_implemented' },
             };
-            if (DEBUG_CLIENT_TOOL_ID_SET.has(toolName) && !isClientToolEnabled(toolName)) {
+            if (DEBUG_CLIENT_TOOL_ID_SET.has(toolName) && !isClientToolEnabledLive(toolName)) {
               resultPayload.output = { message: `Client tool '${toolName}' is disabled in debug settings` };
               resultPayload.status = { code: 503, message: 'tool_disabled' };
             }