Unused error variables in catch block are not allowed (#24487)

packages/cli/src/commands/extensions/new.ts

@@ -25,7 +25,7 @@ async function pathExists(path: string) {
   try {
     await access(path);
     return true;
-  } catch (_e) {
+  } catch {
     return false;
   }
 }

packages/cli/src/commands/mcp.test.ts

@@ -32,7 +32,7 @@ describe('mcp command', () => {
 
     try {
       await parser.parse('mcp');
-    } catch (_error) {
+    } catch {
       // yargs might throw an error when demandCommand is not met
     }
 

packages/cli/src/commands/mcp/list.ts

@@ -121,7 +121,7 @@ async function testMCPConnection(
   try {
     // Use the same transport creation logic as core
     transport = await createTransport(serverName, config, false, mcpContext);
-  } catch (_error) {
+  } catch {
     await client.close();
     return MCPServerStatus.DISCONNECTED;
   }
@@ -135,7 +135,7 @@ async function testMCPConnection(
 
     await client.close();
     return MCPServerStatus.CONNECTED;
-  } catch (_error) {
+  } catch {
     await transport.close();
     return MCPServerStatus.DISCONNECTED;
   }