From 925d11a91dc7fd61c95d45006a2226ee59497788 Mon Sep 17 00:00:00 2001
From: oleina <oleina@google.com>
Date: Fri, 11 Jul 2025 11:18:01 -0700
Subject: [PATCH 1/5] initalize logging for UI

---
 client/src/App.tsx                    | 1 +
 client/src/lib/hooks/useConnection.ts | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/client/src/App.tsx b/client/src/App.tsx
index cff51b4ff..bef4ec4e6 100644
--- a/client/src/App.tsx
+++ b/client/src/App.tsx
@@ -204,6 +204,7 @@ const App = () => {
       ]);
     },
     getRoots: () => rootsRef.current,
+    defaultLoggingLevel: "debug"
   });
 
   useEffect(() => {
diff --git a/client/src/lib/hooks/useConnection.ts b/client/src/lib/hooks/useConnection.ts
index 9009e698f..1ef551546 100644
--- a/client/src/lib/hooks/useConnection.ts
+++ b/client/src/lib/hooks/useConnection.ts
@@ -28,6 +28,7 @@ import {
   ToolListChangedNotificationSchema,
   PromptListChangedNotificationSchema,
   Progress,
+  LoggingLevel,
 } from "@modelcontextprotocol/sdk/types.js";
 import { RequestOptions } from "@modelcontextprotocol/sdk/shared/protocol.js";
 import { useState } from "react";
@@ -63,6 +64,7 @@ interface UseConnectionOptions {
   onPendingRequest?: (request: any, resolve: any, reject: any) => void;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   getRoots?: () => any[];
+  defaultLoggingLevel?: LoggingLevel,
 }
 
 export function useConnection({
@@ -78,6 +80,7 @@ export function useConnection({
   onStdErrNotification,
   onPendingRequest,
   getRoots,
+  defaultLoggingLevel,
 }: UseConnectionOptions) {
   const [connectionStatus, setConnectionStatus] =
     useState<ConnectionStatus>("disconnected");
@@ -521,6 +524,10 @@ export function useConnection({
         });
       }
 
+      if (capabilities?.logging && defaultLoggingLevel) {
+        await client.setLoggingLevel(defaultLoggingLevel);
+      }
+
       setMcpClient(client);
       setConnectionStatus("connected");
     } catch (e) {

From f4d9bf6d5ee9cb00fa4a04f12a6e48230b7dc58f Mon Sep 17 00:00:00 2001
From: oleina <oleina@google.com>
Date: Fri, 11 Jul 2025 11:18:01 -0700
Subject: [PATCH 2/5] initalize logging for cli mode

---
 cli/src/client/connection.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cli/src/client/connection.ts b/cli/src/client/connection.ts
index 931f803da..dcbe8e518 100644
--- a/cli/src/client/connection.ts
+++ b/cli/src/client/connection.ts
@@ -18,6 +18,12 @@ export async function connect(
 ): Promise<void> {
   try {
     await client.connect(transport);
+
+    if (client.getServerCapabilities()?.logging) {
+      // default logging level is undefined in the spec, but the user of the
+      // inspector most likely wants debug.
+      await client.setLoggingLevel("debug");
+    }
   } catch (error) {
     throw new Error(
       `Failed to connect to MCP server: ${error instanceof Error ? error.message : String(error)}`,

From d810680b93fc6b64feb6ef652ddd0df8277152b6 Mon Sep 17 00:00:00 2001
From: oleina <oleina@google.com>
Date: Mon, 14 Jul 2025 07:57:58 -0700
Subject: [PATCH 3/5] use default logging level from useState

---
 client/src/App.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/client/src/App.tsx b/client/src/App.tsx
index bef4ec4e6..594640356 100644
--- a/client/src/App.tsx
+++ b/client/src/App.tsx
@@ -204,7 +204,7 @@ const App = () => {
       ]);
     },
     getRoots: () => rootsRef.current,
-    defaultLoggingLevel: "debug"
+    defaultLoggingLevel: logLevel
   });
 
   useEffect(() => {

From 7ce0938e2713ef2d4513fa6f4224a8482e5b996d Mon Sep 17 00:00:00 2001
From: oleina <oleina@google.com>
Date: Mon, 14 Jul 2025 08:00:13 -0700
Subject: [PATCH 4/5] run linter

---
 client/src/App.tsx                    | 2 +-
 client/src/lib/hooks/useConnection.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/client/src/App.tsx b/client/src/App.tsx
index 594640356..c80cfd351 100644
--- a/client/src/App.tsx
+++ b/client/src/App.tsx
@@ -204,7 +204,7 @@ const App = () => {
       ]);
     },
     getRoots: () => rootsRef.current,
-    defaultLoggingLevel: logLevel
+    defaultLoggingLevel: logLevel,
   });
 
   useEffect(() => {
diff --git a/client/src/lib/hooks/useConnection.ts b/client/src/lib/hooks/useConnection.ts
index 1ef551546..b32552f49 100644
--- a/client/src/lib/hooks/useConnection.ts
+++ b/client/src/lib/hooks/useConnection.ts
@@ -64,7 +64,7 @@ interface UseConnectionOptions {
   onPendingRequest?: (request: any, resolve: any, reject: any) => void;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   getRoots?: () => any[];
-  defaultLoggingLevel?: LoggingLevel,
+  defaultLoggingLevel?: LoggingLevel;
 }
 
 export function useConnection({

From eec20ff1fcfb63391ad452a89a4e4677541e1335 Mon Sep 17 00:00:00 2001
From: oleina <oleina@google.com>
Date: Thu, 31 Jul 2025 10:20:47 -0700
Subject: [PATCH 5/5] add missing close bracket

---
 client/src/lib/hooks/useConnection.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/client/src/lib/hooks/useConnection.ts b/client/src/lib/hooks/useConnection.ts
index 268ba8ff4..78dfa6df6 100644
--- a/client/src/lib/hooks/useConnection.ts
+++ b/client/src/lib/hooks/useConnection.ts
@@ -565,6 +565,7 @@ export function useConnection({
 
       if (capabilities?.logging && defaultLoggingLevel) {
         await client.setLoggingLevel(defaultLoggingLevel);
+      }
 
       if (onElicitationRequest) {
         client.setRequestHandler(ElicitRequestSchema, async (request) => {