From 75166a1961f1963927b838c729bcd17f8acd0858 Mon Sep 17 00:00:00 2001
From: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>
Date: Thu, 29 Jan 2026 16:00:12 -0600
Subject: [PATCH] fix: use ?? to prevent args being undefined for mcp server in
 some cases (#11203)

---
 packages/opencode/src/mcp/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/opencode/src/mcp/index.ts b/packages/opencode/src/mcp/index.ts
index 045c58ef0..29e958fe3 100644
--- a/packages/opencode/src/mcp/index.ts
+++ b/packages/opencode/src/mcp/index.ts
@@ -135,7 +135,7 @@ export namespace MCP {
         return client.callTool(
           {
             name: mcpTool.name,
-            arguments: args as Record<string, unknown>,
+            arguments: (args || {}) as Record<string, unknown>,
           },
           CallToolResultSchema,
           {