fix: remove the hide cursor on windows logic

server/modules/providers/services/mcp.service.ts

@@ -1,18 +1,7 @@
-import os from 'node:os';
-
 import { providerRegistry } from '@/modules/providers/provider.registry.js';
 import type { LLMProvider, McpScope, ProviderMcpServer, UpsertProviderMcpServerInput } from '@/shared/types.js';
 import { AppError } from '@/shared/utils.js';
 
-/** Cursor MCP is not supported on Windows hosts (no Cursor CLI integration). */
-function includeProviderInGlobalMcp(providerId: LLMProvider): boolean {
-  if (providerId === 'cursor' && os.platform() === 'win32') {
-    return false;
-  }
-
-  return true;
-}
-
 
 export const providerMcpService = {
   /**
@@ -75,7 +64,7 @@ export const providerMcpService = {
 
     const scope = input.scope ?? 'project';
     const results: Array<{ provider: LLMProvider; created: boolean; error?: string }> = [];
-    const providers = providerRegistry.listProviders().filter((p) => includeProviderInGlobalMcp(p.id));
+    const providers = providerRegistry.listProviders();
     for (const provider of providers) {
       try {
         await provider.mcp.upsertServer({ ...input, scope });

server/modules/providers/tests/mcp.test.ts

@@ -341,8 +341,7 @@ test('providerMcpService global adder writes to all providers and rejects unsupp
       workspacePath,
     });
 
-    const expectCursorGlobal = process.platform !== 'win32';
-    assert.equal(globalResult.length, expectCursorGlobal ? 5 : 4);
+    assert.equal(globalResult.length, 5);
     assert.ok(globalResult.every((entry) => entry.created === true));
 
     const claudeProject = await readJson(path.join(workspacePath, '.mcp.json'));
@@ -357,10 +356,8 @@ test('providerMcpService global adder writes to all providers and rejects unsupp
     const opencodeProject = await readJson(path.join(workspacePath, 'opencode.json'));
     assert.ok((opencodeProject.mcp as Record<string, unknown>)['global-http']);
 
-    if (expectCursorGlobal) {
-      const cursorProject = await readJson(path.join(workspacePath, '.cursor', 'mcp.json'));
-      assert.ok((cursorProject.mcpServers as Record<string, unknown>)['global-http']);
-    }
+    const cursorProject = await readJson(path.join(workspacePath, '.cursor', 'mcp.json'));
+    assert.ok((cursorProject.mcpServers as Record<string, unknown>)['global-http']);
 
     await assert.rejects(
       providerMcpService.addMcpServerToAllProviders({

server/routes/settings.js

@@ -1,4 +1,5 @@
 import express from 'express';
+
 import { apiKeysDb, credentialsDb, notificationPreferencesDb, pushSubscriptionsDb } from '../modules/database/index.js';
 import { getPublicKey } from '../services/vapid-keys.js';
 import { createNotificationEvent, notifyUserIfEnabled } from '../services/notification-orchestrator.js';
@@ -273,14 +274,4 @@ router.post('/push/unsubscribe', async (req, res) => {
   }
 });
 
-// Host OS for UI (e.g. hide Cursor agent when the backend runs on Windows).
-router.get('/server-env', async (req, res) => {
-  try {
-    res.json({ platform: process.platform });
-  } catch (error) {
-    console.error('Error reading server environment:', error);
-    res.status(500).json({ error: 'Failed to read server environment' });
-  }
-});
-
 export default router;

src/components/chat/view/subcomponents/ProviderSelectionEmptyState.tsx

@@ -1,8 +1,7 @@
-import React, { useCallback, useEffect, useMemo, useState } from "react";
+import React, { useCallback, useMemo, useState } from "react";
 import { Check, ChevronDown } from "lucide-react";
 import { Trans, useTranslation } from "react-i18next";
 
-import { useServerPlatform } from "../../../../hooks/useServerPlatform";
 import type {
   ProjectSession,
   LLMProvider,
@@ -120,24 +119,15 @@ export default function ProviderSelectionEmptyState({
   setInput,
 }: ProviderSelectionEmptyStateProps) {
   const { t } = useTranslation("chat");
-  const { isWindowsServer } = useServerPlatform();
   const [dialogOpen, setDialogOpen] = useState(false);
 
-  const visibleProviderGroups = useMemo(() => {
-    const groups: ProviderGroup[] = PROVIDER_META.map((p) => ({
+  const visibleProviderGroups = useMemo<ProviderGroup[]>(() => {
+    return PROVIDER_META.map((p) => ({
       id: p.id,
       name: p.name,
       models: providerModelCatalog[p.id]?.OPTIONS ?? [],
     }));
-    return isWindowsServer ? groups.filter((p) => p.id !== "cursor") : groups;
-  }, [isWindowsServer, providerModelCatalog]);
-
-  useEffect(() => {
-    if (isWindowsServer && provider === "cursor") {
-      setProvider("claude");
-      localStorage.setItem("selected-provider", "claude");
-    }
-  }, [isWindowsServer, provider, setProvider]);
+  }, [providerModelCatalog]);
 
   const nextTaskPrompt = t("tasks.nextTaskPrompt", {
     defaultValue: "Start the next task",

src/components/settings/view/tabs/agents-settings/AgentsSettingsTab.tsx

@@ -1,6 +1,5 @@
-import { useEffect, useMemo, useState } from 'react';
+import { useMemo, useState } from 'react';
 
-import { useServerPlatform } from '../../../../../hooks/useServerPlatform';
 import type { AgentCategory, AgentProvider } from '../../../types/types';
 
 import type { AgentContext, AgentsSettingsTabProps } from './types';
@@ -23,22 +22,10 @@ export default function AgentsSettingsTab({
 }: AgentsSettingsTabProps) {
   const [selectedAgent, setSelectedAgent] = useState<AgentProvider>('claude');
   const [selectedCategory, setSelectedCategory] = useState<AgentCategory>('account');
-  const { isWindowsServer } = useServerPlatform();
 
   const visibleAgents = useMemo<AgentProvider[]>(() => {
-    const all: AgentProvider[] = ['claude', 'cursor', 'codex', 'gemini', 'opencode'];
-    if (isWindowsServer) {
-      return all.filter((id) => id !== 'cursor');
-    }
-
-    return all;
-  }, [isWindowsServer]);
-
-  useEffect(() => {
-    if (isWindowsServer && selectedAgent === 'cursor') {
-      setSelectedAgent('claude');
-    }
-  }, [isWindowsServer, selectedAgent]);
+    return ['claude', 'cursor', 'codex', 'gemini', 'opencode'];
+  }, []);
 
   const agentContextById = useMemo<Record<AgentProvider, AgentContext>>(() => ({
     claude: {

src/hooks/useServerPlatform.ts

@@ -1,40 +0,0 @@
-import { useEffect, useState } from 'react';
-
-import { authenticatedFetch } from '../utils/api';
-
-/**
- * Node `process.platform` from the API host (e.g. win32, darwin, linux).
- * Null until loaded or if the request fails.
- */
-export function useServerPlatform(): {
-  serverPlatform: string | null;
-  isWindowsServer: boolean;
-} {
-  const [serverPlatform, setServerPlatform] = useState<string | null>(null);
-
-  useEffect(() => {
-    let cancelled = false;
-    (async () => {
-      try {
-        const response = await authenticatedFetch('/api/settings/server-env');
-        if (!response.ok) {
-          return;
-        }
-        const body = (await response.json()) as { platform?: string };
-        if (!cancelled && typeof body.platform === 'string') {
-          setServerPlatform(body.platform);
-        }
-      } catch {
-        // Keep null: treat as unknown host.
-      }
-    })();
-    return () => {
-      cancelled = true;
-    };
-  }, []);
-
-  return {
-    serverPlatform,
-    isWindowsServer: serverPlatform === 'win32',
-  };
-}