From 794471d75c98bd697ce23dcd5b2b90a1a4525036 Mon Sep 17 00:00:00 2001
From: Kaede Akino <i@akinokae.de>
Date: Wed, 26 Aug 2026 17:11:06 +0800
Subject: [PATCH] fix: start the MCP loopback listener

---
 Termind/App/MCPServerController.swift                 |  3 ++-
 .../Networking/LoopbackHTTPServer.swift               |  2 +-
 TermindTests/LoopbackHTTPServerTests.swift            | 11 +++++++++++
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/Termind/App/MCPServerController.swift b/Termind/App/MCPServerController.swift
index a4d9b94a..f2498b48 100644
--- a/Termind/App/MCPServerController.swift
+++ b/Termind/App/MCPServerController.swift
@@ -14,7 +14,8 @@ final class MCPServerController {
             switch self {
             case .stopped: String(localized: "Off")
             case .starting: String(localized: "Starting…")
-            case .ready(let port): String(localized: "Listening on localhost:\(port)")
+            case .ready(let port):
+                String(localized: "Listening on localhost:\(String(port))")
             case .failed(let reason): reason
             }
         }
diff --git a/Termind/Infrastructure/Networking/LoopbackHTTPServer.swift b/Termind/Infrastructure/Networking/LoopbackHTTPServer.swift
index e5ac599e..1f4d7b47 100644
--- a/Termind/Infrastructure/Networking/LoopbackHTTPServer.swift
+++ b/Termind/Infrastructure/Networking/LoopbackHTTPServer.swift
@@ -92,7 +92,7 @@ actor LoopbackHTTPServer {
                 parameters.requiredLocalEndpoint = .hostPort(
                     host: NWEndpoint.Host(address), port: endpointPort
                 )
-                let listener = try NWListener(using: parameters, on: endpointPort)
+                let listener = try NWListener(using: parameters)
                 listener.newConnectionLimit = Self.maximumConnections
                 listener.newConnectionHandler = { [weak self] connection in
                     Task { await self?.accept(connection) }
diff --git a/TermindTests/LoopbackHTTPServerTests.swift b/TermindTests/LoopbackHTTPServerTests.swift
index 52bd28e6..4961e56c 100644
--- a/TermindTests/LoopbackHTTPServerTests.swift
+++ b/TermindTests/LoopbackHTTPServerTests.swift
@@ -5,10 +5,21 @@ import Testing
 
 @Suite
 struct LoopbackHTTPServerTests {
+    @Test
+    func constructsLoopbackListenersWithoutDuplicatingThePortArgument() async throws {
+        let server = LoopbackHTTPServer()
+
+        try await server.start(port: 57_391, token: "test-token") { _ in
+            .text(200, "OK")
+        }
+        await server.stop()
+    }
+
     @Test
     func mcpServerIsOffByDefault() {
         #expect(SettingsKey.defaultMCPServerEnabled == false)
         #expect(SettingsKey.defaultMCPServerPort == 7_391)
+        #expect(MCPServerController.Status.ready(port: 7_391).label == "Listening on localhost:7391")
     }
 
     @Test