diff --git a/crates/agent2/src/agent2.rs b/crates/agent2/src/agent2.rs
index 7e429ae082..d071b67a4d 100644
--- a/crates/agent2/src/agent2.rs
+++ b/crates/agent2/src/agent2.rs
@@ -78,10 +78,6 @@ pub enum MessageChunk {
         name: SharedString,
         content: SharedString,
     },
-    Thread {
-        title: SharedString,
-        content: Vec<AgentThreadEntryContent>,
-    },
     Fetch {
         url: SharedString,
         content: SharedString,