From b157fd10a70531a9eba9ae0790f1a3aa448f4fe3 Mon Sep 17 00:00:00 2001
From: Cole Leavitt <75138914+coleleavitt@users.noreply.github.com>
Date: Mon, 29 Dec 2025 13:58:11 -0700
Subject: fix: filter messages with only step-start parts in toModelMessage
 (#6383)

---
 packages/opencode/src/session/message-v2.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'packages')

diff --git a/packages/opencode/src/session/message-v2.ts b/packages/opencode/src/session/message-v2.ts
index 95bc3812e..da89a1a0e 100644
--- a/packages/opencode/src/session/message-v2.ts
+++ b/packages/opencode/src/session/message-v2.ts
@@ -539,7 +539,7 @@ export namespace MessageV2 {
       }
     }
 
-    return convertToModelMessages(result.filter((msg) => msg.parts.length > 0))
+    return convertToModelMessages(result.filter((msg) => msg.parts.some((part) => part.type !== "step-start")))
   }
 
   export const stream = fn(Identifier.schema("session"), async function* (sessionID) {
-- 
cgit v1.2.3