feat: refactor installMCPServer to support async execution and improv…

…e command resolution

- Changed installMCPServer function to be asynchronous, allowing for better handling of command execution.
- Introduced execAsync to resolve the command for Python runtime dynamically.
- Updated package-management.ts to await the installMCPServer call, ensuring proper execution flow during package installation.

These changes enhance the installation process for MCP servers, particularly for Python packages, improving reliability and user experience.

src/utils/config.ts

@@ -3,10 +3,14 @@ import * as path from 'path';
 import * as os from 'os';
 import { fileURLToPath } from 'url';
 import { dirname } from 'path';
+import { exec } from 'child_process';
+import { promisify } from 'util';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = dirname(__filename);
 
+const execAsync = promisify(exec);
+
 export interface MCPServerConfig {
   command: string;
   args: string[];
@@ -58,7 +62,7 @@ export function writeConfig(config: ClaudeConfig): void {
   fs.writeFileSync(configPath, JSON.stringify(config, null, 2));
 }
 
-export function installMCPServer(packageName: string, envVars?: Record<string, string>, runtime?: 'node' | 'python'): void {
+export async function installMCPServer(packageName: string, envVars?: Record<string, string>, runtime?: 'node' | 'python'): Promise<void> {
   const config = readConfig();
   const serverName = packageName.replace(/\//g, '-');
 
@@ -67,11 +71,21 @@ export function installMCPServer(packageName: string, envVars?: Record<string, s
   if (!config.mcpServers) {
     config.mcpServers = {};
   }
+
+  let command = 'npx';
+  if (effectiveRuntime === 'python') {
+    try {
+      const { stdout } = await execAsync('which uvx');
+      command = stdout.trim();
+    } catch (error) {
+      command = 'uvx'; // Fallback to just 'uvx' if which fails
+    }
+  }
 
   const serverConfig: MCPServerConfig = {
     runtime: effectiveRuntime,
     env: envVars,
-    command: effectiveRuntime === 'python' ? 'uvx' : 'npx',
+    command,
     args: effectiveRuntime === 'python' ? [packageName] : ['-y', packageName]
   };
 

src/utils/package-management.ts

@@ -169,7 +169,7 @@ export async function installPackage(pkg: Package): Promise<void> {
 
     const envVars = await promptForEnvVars(pkg.name);
 
-    installMCPServer(pkg.name, envVars, pkg.runtime);
+    await installMCPServer(pkg.name, envVars, pkg.runtime);
     console.log('Updated Claude desktop configuration');
     await promptForRestart();
   } catch (error) {