From 811a78f3104ffc0643eb5cb1b66f72ec37236f68 Mon Sep 17 00:00:00 2001
From: Olivier Chafik <ochafik@anthropic.com>
Date: Thu, 23 Apr 2026 14:15:47 +0100
Subject: [PATCH] fix: close per-request server and transport in example-apps
 handler

The stateless /:slug/mcp handler creates a fresh McpServer and
StreamableHTTPServerTransport on every request but never closed them,
leaking memory under load. Register a 'close' listener (fires on both
normal completion and client abort mid-SSE) to release them.
---
 src/modules/example-apps/index.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/modules/example-apps/index.ts b/src/modules/example-apps/index.ts
index 34513cf..b649b0c 100644
--- a/src/modules/example-apps/index.ts
+++ b/src/modules/example-apps/index.ts
@@ -133,6 +133,11 @@ export class ExampleAppsModule {
           sessionIdGenerator: undefined, // Stateless: no session management
         });
 
+        res.on('close', () => {
+          transport.close();
+          server.close();
+        });
+
         await server.connect(transport);
         await transport.handleRequest(req, res, req.body);
       } catch (error) {