diff --git a/codex-rs/Cargo.lock b/codex-rs/Cargo.lock
index df44a7f83b..61b328d84c 100644
--- a/codex-rs/Cargo.lock
+++ b/codex-rs/Cargo.lock
@@ -2418,8 +2418,6 @@ version = "0.0.0"
 dependencies = [
  "codex-utils-absolute-path",
  "codex-utils-plugins",
- "serde",
- "serde_json",
  "thiserror 2.0.18",
 ]
 
diff --git a/codex-rs/tui_app_server/src/app/loaded_threads.rs b/codex-rs/tui_app_server/src/app/loaded_threads.rs
index c6ac09890d..2ec934c579 100644
--- a/codex-rs/tui_app_server/src/app/loaded_threads.rs
+++ b/codex-rs/tui_app_server/src/app/loaded_threads.rs
@@ -125,6 +125,7 @@ mod tests {
             agent_role: None,
             git_info: None,
             name: None,
+            metadata: std::collections::BTreeMap::new(),
             turns: Vec::new(),
         }
     }