From 196670a35644a5573a136a2bd41b303b737d7908 Mon Sep 17 00:00:00 2001
From: Yufeng He <40085740+he-yufeng@users.noreply.github.com>
Date: Sat, 20 Jun 2026 09:36:44 +0800
Subject: [PATCH] fix(cli): accept uppercase URL schemes in mcp add transport
 detection (#5426)

---
 packages/cli/src/commands/mcp/add.test.ts | 10 ++++++++++
 packages/cli/src/commands/mcp/add.ts      |  6 +-----
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/packages/cli/src/commands/mcp/add.test.ts b/packages/cli/src/commands/mcp/add.test.ts
index ae93d45636..2beeceaca1 100644
--- a/packages/cli/src/commands/mcp/add.test.ts
+++ b/packages/cli/src/commands/mcp/add.test.ts
@@ -115,6 +115,16 @@ describe('mcp add command', () => {
     });
   });
 
+  it('should auto-detect http transport when commandOrUrl uses an uppercase URL scheme', async () => {
+    await parser.parseAsync('add http-server HTTPS://example.com/mcp');
+
+    expect(mockSetValue).toHaveBeenCalledWith(SettingScope.User, 'mcpServers', {
+      'http-server': {
+        httpUrl: 'HTTPS://example.com/mcp',
+      },
+    });
+  });
+
   it('should respect explicit transport even when commandOrUrl is a URL', async () => {
     await parser.parseAsync(
       'add --transport sse sse-server https://example.com/sse-endpoint',
diff --git a/packages/cli/src/commands/mcp/add.ts b/packages/cli/src/commands/mcp/add.ts
index 27bc261792..b316cd8f14 100644
--- a/packages/cli/src/commands/mcp/add.ts
+++ b/packages/cli/src/commands/mcp/add.ts
@@ -302,11 +302,7 @@ export const addCommand: CommandModule = {
         // Auto-detect transport from URL if not explicitly specified
         if (!argv['transport']) {
           const commandOrUrl = argv['commandOrUrl'] as string;
-          if (
-            commandOrUrl &&
-            (commandOrUrl.startsWith('http://') ||
-              commandOrUrl.startsWith('https://'))
-          ) {
+          if (commandOrUrl && /^https?:\/\//i.test(commandOrUrl)) {
             argv['transport'] = 'http';
           } else {
             argv['transport'] = 'stdio';