From 675b967862c2ebee1acb1f2b4a78620f8fe612b4 Mon Sep 17 00:00:00 2001
From: Koushik Dutta <koushd@gmail.com>
Date: Thu, 2 Apr 2026 12:45:21 -0700
Subject: [PATCH] fix: add undefined to buffer state type annotations

Buffer state variables can be undefined before initialization.
---
 server/src/rpc-serializer.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/server/src/rpc-serializer.ts b/server/src/rpc-serializer.ts
index d56848882..6a61873bb 100644
--- a/server/src/rpc-serializer.ts
+++ b/server/src/rpc-serializer.ts
@@ -109,8 +109,8 @@ export function createRpcDuplexSerializer(writable: {
         sendMessageFinish: (message) => sendMessageFinish(Buffer.from(JSON.stringify(message))),
     });
 
-    let header: Buffer;
-    let pending: Buffer;
+    let header: Buffer | undefined;
+    let pending: Buffer | undefined;
     let offset: number;
     let type: number;
 
@@ -183,7 +183,7 @@ export function createRpcDuplexSerializer(writable: {
 
 export function createDataChannelSerializer(dc: { send: (data: Buffer) => void }) {
     // Chunking and debouncing state
-    let pending: Buffer[];
+    let pending: Buffer[] | undefined;
     
     // Max packet size for data channels is 16KB
     const MAX_PACKET_SIZE = 16384;