📂 refactor: Show File Search and Code File Upload Options Based on Agent Tools (#9532)

client/src/hooks/Agents/useAgentToolPermissions.ts

@@ -0,0 +1,65 @@
+import { useMemo } from 'react';
+import { Tools } from 'librechat-data-provider';
+import { useGetAgentByIdQuery } from '~/data-provider';
+import { useAgentsMapContext } from '~/Providers';
+
+interface AgentToolPermissionsResult {
+  fileSearchAllowedByAgent: boolean;
+  codeAllowedByAgent: boolean;
+  tools: string[] | undefined;
+}
+
+/**
+ * Hook to determine whether specific tools are allowed for a given agent.
+ *
+ * @param agentId - The ID of the agent. If null/undefined/empty, returns true for all tools (ephemeral agent behavior)
+ * @returns Object with boolean flags for file_search and execute_code permissions, plus the tools array
+ */
+export default function useAgentToolPermissions(
+  agentId: string | null | undefined,
+): AgentToolPermissionsResult {
+  const agentsMap = useAgentsMapContext();
+
+  // Get the agent from the map if available
+  const selectedAgent = useMemo(() => {
+    return agentId != null && agentId !== '' ? agentsMap?.[agentId] : undefined;
+  }, [agentId, agentsMap]);
+
+  // Query for agent data from the API
+  const { data: agentData } = useGetAgentByIdQuery(agentId ?? '', {
+    enabled: !!agentId,
+  });
+
+  // Get tools from either the API data or the agents map
+  const tools = useMemo(
+    () =>
+      (agentData?.tools as string[] | undefined) || (selectedAgent?.tools as string[] | undefined),
+    [agentData?.tools, selectedAgent?.tools],
+  );
+
+  // Determine if file_search is allowed
+  const fileSearchAllowedByAgent = useMemo(() => {
+    // If no agentId, allow for ephemeral agents
+    if (!agentId) return true;
+    // If agentId exists but agent not found, disallow
+    if (!selectedAgent) return false;
+    // Check if the agent has the file_search tool
+    return tools?.includes(Tools.file_search) ?? false;
+  }, [agentId, selectedAgent, tools]);
+
+  // Determine if execute_code is allowed
+  const codeAllowedByAgent = useMemo(() => {
+    // If no agentId, allow for ephemeral agents
+    if (!agentId) return true;
+    // If agentId exists but agent not found, disallow
+    if (!selectedAgent) return false;
+    // Check if the agent has the execute_code tool
+    return tools?.includes(Tools.execute_code) ?? false;
+  }, [agentId, selectedAgent, tools]);
+
+  return {
+    fileSearchAllowedByAgent,
+    codeAllowedByAgent,
+    tools,
+  };
+}