Adjust terminal title spinner formatting and clearing

Co-authored-by: Codex <noreply@openai.com>

codex-rs/tui/src/app.rs

@@ -3814,12 +3814,12 @@ mod tests {
     #[test]
     fn decorate_title_context_adds_spinner_while_running() {
         assert_eq!(
-            decorate_title_context(Some("Named thread".to_string()), true, 0),
-            Some("⠋ - Named thread".to_string())
+            decorate_title_context(Some("Working".to_string()), true, 0),
+            Some("⠋ - Working".to_string())
         );
         assert_eq!(
-            decorate_title_context(Some("Named thread".to_string()), true, 9),
-            Some("⠏ - Named thread".to_string())
+            decorate_title_context(Some("Working".to_string()), true, 9),
+            Some("⠏ - Working".to_string())
         );
         assert_eq!(decorate_title_context(None, true, 0), Some("⠋".to_string()));
     }

codex-rs/tui/src/bottom_pane/command_popup.rs

@@ -17,7 +17,11 @@ use std::collections::HashSet;
 // Hide alias commands in the default popup list so each unique action appears once.
 // `quit` is an alias of `exit`, so we skip `quit` here.
 // `approvals` is an alias of `permissions`.
-const ALIAS_COMMANDS: &[SlashCommand] = &[SlashCommand::Quit, SlashCommand::Approvals];
+const ALIAS_COMMANDS: &[SlashCommand] = &[
+    SlashCommand::Quit,
+    SlashCommand::Approvals,
+    SlashCommand::Title,
+];
 
 /// A selectable item in the popup: either a built-in command or a user prompt.
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
@@ -478,11 +482,11 @@ mod tests {
     }
 
     #[test]
-    fn title_shown_in_empty_filter_and_for_prefix() {
+    fn title_hidden_in_empty_filter_but_shown_for_prefix() {
         let mut popup = CommandPopup::new(Vec::new(), CommandPopupFlags::default());
         popup.on_composer_text_change("/".to_string());
         let items = popup.filtered_items();
-        assert!(items.contains(&CommandItem::Builtin(SlashCommand::Title)));
+        assert!(!items.contains(&CommandItem::Builtin(SlashCommand::Title)));
 
         popup.on_composer_text_change("/ti".to_string());
         let items = popup.filtered_items();

codex-rs/tui/src/bottom_pane/slash_commands.rs

@@ -69,14 +69,25 @@ mod tests {
     }
 
     #[test]
-    fn known_commands_resolve_for_dispatch() {
-        for (name, expected) in [
-            ("debug-config", SlashCommand::DebugConfig),
-            ("clear", SlashCommand::Clear),
-            ("title", SlashCommand::Title),
-        ] {
-            assert_eq!(find_builtin_command(name, all_enabled_flags()), Some(expected));
-        }
+    fn debug_command_still_resolves_for_dispatch() {
+        let cmd = find_builtin_command("debug-config", all_enabled_flags());
+        assert_eq!(cmd, Some(SlashCommand::DebugConfig));
+    }
+
+    #[test]
+    fn clear_command_resolves_for_dispatch() {
+        assert_eq!(
+            find_builtin_command("clear", all_enabled_flags()),
+            Some(SlashCommand::Clear)
+        );
+    }
+
+    #[test]
+    fn title_command_resolves_for_dispatch() {
+        assert_eq!(
+            find_builtin_command("title", all_enabled_flags()),
+            Some(SlashCommand::Title)
+        );
     }
 
     #[test]

codex-rs/tui/src/tui.rs

@@ -80,9 +80,7 @@ fn format_terminal_title(context: Option<&str>) -> String {
         .filter(|text| !text.is_empty());
 
     match context {
-        Some(context) if has_spinner_prefix(&context) => {
-            format!("{DEFAULT_TERMINAL_TITLE} {context}")
-        }
+        Some(context) if has_spinner_prefix(&context) => format!("{DEFAULT_TERMINAL_TITLE} {context}"),
         Some(context) => format!("{DEFAULT_TERMINAL_TITLE} - {context}"),
         None => DEFAULT_TERMINAL_TITLE.to_string(),
     }