feat: implement support for windows file detection

src/main.ts

@@ -1,4 +1,5 @@
 import fs from 'node:fs/promises'
+import { platform } from 'node:os'
 import { MCPConfigLinterService } from './services/mcp-config-linter-service.ts'
 import { MCPServerManagerService } from './services/mcp-server-manager-service.ts'
 
@@ -39,22 +40,40 @@ interface MCPFileGroupsResult {
 type MCPFilePathGroupsRecord = Record<string, MCPFileGroups>
 type MCPFileGroupsResultRecord = Record<string, MCPFileGroupsResult>
 
+const osSpecificPaths: { [key: string]: MCPFilePath[] } = {
+  claude: [],
+  cursor: []
+}
+
+if (platform() === 'win32') {
+  osSpecificPaths['claude'] = [
+    { filePath: `${process.env.APPDATA}\\Claude\\claude_desktop_config.json`, type: 'global' }
+  ]
+  osSpecificPaths['cursor'] = [
+    { filePath: `${process.env.HOME}\\.cursor\\mcp.json`, type: 'global' },
+    { filePath: '.cursor\\mcp.json', type: 'local' }
+  ]
+} else {
+  osSpecificPaths['claude'] = [
+    { filePath: '~/Library/Application Support/Claude/claude_desktop_config.json', type: 'global' }
+  ]
+  osSpecificPaths['cursor'] = [
+    { filePath: '~/.cursor/mcp.json', type: 'global' },
+    { filePath: '.cursor/mcp.json', type: 'local' }
+  ]
+}
+
 export class MCPFiles {
   private mcpFilePathGroups: MCPFilePathGroupsRecord = {
     claude: {
       name: 'claude-desktop',
       friendlyName: 'Claude Desktop',
-      paths: [
-        { filePath: '~/Library/Application Support/Claude/claude_desktop_config.json', type: 'global' },
-      ]
+      paths: osSpecificPaths['claude']
     },
     cursor: {
       name: 'cursor',
       friendlyName: 'Cursor',
-      paths: [
-        { filePath: '~/.cursor/mcp.json', type: 'global' },
-        { filePath: '.cursor/mcp.json', type: 'local' },
-      ]
+      paths: osSpecificPaths['cursor']
     }
   }
 

src/services/mcp-server-manager-service.ts

@@ -112,8 +112,34 @@ export class MCPServerManagerService {
 
       // Then iterate the map to check for matches
       let mcpServerDetection: MatchedProcess | undefined
+
       for (const [pid, processData] of processMap) {
-        if (this.isCommandMatch(processData.commandTokens, pid, processData.ppid)) {
+        const commandMatchLinux = this.isCommandMatch(processData.commandTokens, pid, processData.ppid)
+        let commandMatchWin32 = false
+        if (platform() === 'win32') {
+          // for Windows, we need to change commandTokens to also match another pattern
+          // where the command starts with `cmd` then follows potentially several command-line
+          // flags like /c /d and then the actual command.
+          // This is because Claude Desktop on Windows automatically starts MCP Servers like that
+          // even if the command specified in the MCP config is just `uvx` or `npx`.
+
+          let commandTokensOnWin32 = processData.commandTokens
+          if (commandTokensOnWin32.length > 0 && commandTokensOnWin32[0].toLowerCase().startsWith('cmd')) {
+            // If the first token is 'cmd', we need to skip it and check the next tokens
+            commandTokensOnWin32 = commandTokensOnWin32.slice(1)
+
+            // Skip any additional flags like /c, /d, etc.
+            while (commandTokensOnWin32.length > 0 && commandTokensOnWin32[0].startsWith('/')) {
+              commandTokensOnWin32 = commandTokensOnWin32.slice(1)
+            }
+          }
+
+          commandMatchWin32 = this.isCommandMatch(commandTokensOnWin32, pid, processData.ppid)
+        }
+
+        const commandMatch = commandMatchLinux || commandMatchWin32
+
+        if (commandMatch) {
           mcpServerDetection = {
             pid,
             commandLine: processData.commandTokens.join(' '),