diff --git a/codex-rs/Cargo.lock b/codex-rs/Cargo.lock
index 1465406861..1e1590e6ce 100644
--- a/codex-rs/Cargo.lock
+++ b/codex-rs/Cargo.lock
@@ -3634,7 +3634,6 @@ dependencies = [
  "codex-app-server-client",
  "codex-app-server-protocol",
  "codex-arg0",
- "codex-backend-client",
  "codex-chatgpt",
  "codex-cli",
  "codex-cloud-requirements",
diff --git a/codex-rs/tui/Cargo.toml b/codex-rs/tui/Cargo.toml
index 2532b12d4b..c5538c02ed 100644
--- a/codex-rs/tui/Cargo.toml
+++ b/codex-rs/tui/Cargo.toml
@@ -29,7 +29,6 @@ codex-ansi-escape = { workspace = true }
 codex-app-server-client = { workspace = true }
 codex-app-server-protocol = { workspace = true }
 codex-arg0 = { workspace = true }
-codex-backend-client = { workspace = true }
 codex-install-context = { workspace = true }
 codex-chatgpt = { workspace = true }
 codex-cloud-requirements = { workspace = true }
diff --git a/codex-rs/tui/src/lib.rs b/codex-rs/tui/src/lib.rs
index d8648eb51f..55c190a66d 100644
--- a/codex-rs/tui/src/lib.rs
+++ b/codex-rs/tui/src/lib.rs
@@ -42,7 +42,6 @@ use codex_config::format_config_error_with_source;
 use codex_exec_server::EnvironmentManager;
 use codex_exec_server::EnvironmentManagerArgs;
 use codex_exec_server::ExecServerRuntimePaths;
-use codex_features::Feature;
 use codex_login::AuthConfig;
 use codex_login::default_client::set_default_client_residency_requirement;
 use codex_login::enforce_login_restrictions;
@@ -191,7 +190,6 @@ mod version;
 mod voice;
 mod width;
 mod workspace_command;
-mod workspace_messages;
 #[cfg(target_os = "linux")]
 #[allow(dead_code)]
 mod voice {
@@ -1106,9 +1104,6 @@ async fn run_ratatui_app(
     color_eyre::install()?;
 
     tooltips::announcement::prewarm();
-    if initial_config.features.enabled(Feature::WorkspaceMessages) {
-        workspace_messages::prewarm_headline(&initial_config);
-    }
 
     // Forward panic reports through tracing so they appear in the UI status
     // line, but do not swallow the default/color-eyre panic handler.
diff --git a/codex-rs/tui/src/workspace_messages.rs b/codex-rs/tui/src/workspace_messages.rs
deleted file mode 100644
index c7d7601d77..0000000000
--- a/codex-rs/tui/src/workspace_messages.rs
+++ /dev/null
@@ -1,39 +0,0 @@
-use crate::legacy_core::config::Config;
-use codex_backend_client::Client as BackendClient;
-use codex_backend_client::CodexWorkspaceMessage;
-use codex_login::AuthManager;
-use std::sync::OnceLock;
-use std::time::Duration;
-use tokio::time::timeout;
-
-const HEADLINE_FETCH_TIMEOUT: Duration = Duration::from_millis(1000);
-
-static WORKSPACE_HEADLINE: OnceLock<Option<CodexWorkspaceMessage>> = OnceLock::new();
-
-pub(crate) fn prewarm_headline(config: &Config) {
-    if WORKSPACE_HEADLINE.get().is_some() {
-        return;
-    }
-
-    let config = config.clone();
-    tokio::spawn(async move {
-        let headline = timeout(HEADLINE_FETCH_TIMEOUT, fetch_headline(config))
-            .await
-            .ok()
-            .flatten();
-        let _ = WORKSPACE_HEADLINE.set(headline);
-    });
-}
-
-async fn fetch_headline(config: Config) -> Option<CodexWorkspaceMessage> {
-    let auth_manager =
-        AuthManager::shared_from_config(&config, /*enable_codex_api_key_env*/ false).await;
-    let auth = auth_manager.auth().await?;
-    if !auth.uses_codex_backend() {
-        return None;
-    }
-
-    let client = BackendClient::from_auth(config.chatgpt_base_url, &auth).ok()?;
-    let messages = client.list_workspace_messages().await.ok()?;
-    messages.headlines().next().cloned()
-}