feat: add TUI run status spinner

crates/tui/src/app.rs

@@ -249,6 +249,9 @@ pub struct App {
     pub running: bool,
     /// True while the Worker is in `WorkerStatus::Paused`.
     pub paused: bool,
+    /// Local observation time for the current run. Used only for live UI
+    /// elapsed time and spinner animation; it is not persisted in history.
+    pub run_started_at: Option<Instant>,
     pub run_requests: usize,
     /// Sum of `input_tokens - cache_read_input_tokens` across the
     /// current turn's LLM requests — i.e. the net tokens this turn
@@ -352,6 +355,7 @@ impl App {
             worker_status: WorkerStatus::Idle,
             running: false,
             paused: false,
+            run_started_at: None,
             run_requests: 0,
             run_upload_tokens: 0,
             run_output_tokens: 0,
@@ -553,11 +557,17 @@ impl App {
     }
 
     pub fn set_worker_status(&mut self, status: WorkerStatus) {
+        let was_running = self.running;
         self.worker_status = status;
         self.running = status == WorkerStatus::Running;
         self.paused = status == WorkerStatus::Paused;
         if self.running {
+            if !was_running {
+                self.run_started_at = Some(Instant::now());
+            }
             self.quit_confirm = None;
+        } else {
+            self.run_started_at = None;
         }
     }
 
@@ -1121,11 +1131,13 @@ impl App {
                 self.latest_llm_wait_event = None;
                 self.assistant_streaming = false;
             }
-            // UI consumers of Invoke / LlmCall semantics are out of scope
-            // for `tickets/invoke-turn-llmcall-semantics.md`; events flow
-            // through to subscribers but the TUI currently derives its
-            // turn header from `UserMessage` / `SystemItem` arrivals.
-            Event::InvokeStart { .. } | Event::LlmCallStart { .. } | Event::LlmCallEnd { .. } => {
+            Event::InvokeStart { .. } => {
+                self.set_worker_status(WorkerStatus::Running);
+            }
+            // UI consumers of per-attempt LlmCall semantics remain out of scope;
+            // the run-level status starts at InvokeStart and TurnStart counts each
+            // LLM request within that run.
+            Event::LlmCallStart { .. } | Event::LlmCallEnd { .. } => {
                 self.latest_llm_wait_event = None;
             }
             Event::LlmRetry {
@@ -3377,6 +3389,17 @@ mod completion_flow_tests {
         }
     }
 
+    #[test]
+    fn running_status_starts_and_stops_live_run_clock() {
+        let mut app = App::new("test".into());
+
+        app.set_worker_status(WorkerStatus::Running);
+        assert!(app.run_started_at.is_some());
+
+        app.set_worker_status(WorkerStatus::Idle);
+        assert!(app.run_started_at.is_none());
+    }
+
     #[test]
     fn running_submit_is_queued_locally_and_clears_composer() {
         let mut app = App::new("test".into());

crates/tui/src/console/mod.rs

@@ -531,15 +531,19 @@ enum E2eRewindInput {
 enum LoopInput<P> {
     Terminal(TerminalEventResult),
     Worker(P),
+    Tick,
 }
 
-async fn next_loop_input<P, F>(
+async fn next_loop_input<P, F, T>(
     term_rx: &mut mpsc::UnboundedReceiver<TerminalEventResult>,
     connected: bool,
     pod_next: F,
+    animate: bool,
+    animation_tick: T,
 ) -> LoopInput<P>
 where
     F: Future<Output = P>,
+    T: Future,
 {
     tokio::select! {
         biased;
@@ -553,6 +557,7 @@ where
             }))
         }
         event = pod_next, if connected => LoopInput::Worker(event),
+        _ = animation_tick, if animate => LoopInput::Tick,
     }
 }
 
@@ -608,6 +613,8 @@ async fn run_loop<T: Socket>(
     client: &mut ConsoleConnection<T>,
 ) -> Result<(), Box<dyn std::error::Error>> {
     let (_terminal_reader, mut term_rx) = TerminalEventReader::spawn()?;
+    let mut animation_tick = tokio::time::interval(Duration::from_millis(80));
+    animation_tick.set_missed_tick_behavior(tokio::time::MissedTickBehavior::Skip);
 
     terminal.draw(|f| ui::draw(f, app))?;
 
@@ -626,7 +633,15 @@ async fn run_loop<T: Socket>(
             continue;
         }
 
-        match next_loop_input(&mut term_rx, app.connected, client.next_event()).await {
+        match next_loop_input(
+            &mut term_rx,
+            app.connected,
+            client.next_event(),
+            app.running,
+            animation_tick.tick(),
+        )
+        .await
+        {
             LoopInput::Terminal(term_event) => {
                 handle_terminal_event(app, client, term_event?).await?;
             }
@@ -642,6 +657,7 @@ async fn run_loop<T: Socket>(
                     app.push_error("Connection lost");
                 }
             },
+            LoopInput::Tick => {}
         }
 
         terminal.draw(|f| ui::draw(f, app))?;
@@ -1216,6 +1232,23 @@ mod tests {
         );
     }
 
+    #[tokio::test]
+    async fn animation_tick_wakes_loop_while_running() {
+        let (_tx, mut rx) = mpsc::unbounded_channel::<TerminalEventResult>();
+
+        assert!(matches!(
+            next_loop_input(
+                &mut rx,
+                true,
+                std::future::pending::<Option<u8>>(),
+                true,
+                std::future::ready(()),
+            )
+            .await,
+            LoopInput::Tick
+        ));
+    }
+
     #[tokio::test]
     async fn terminal_event_is_selected_before_ready_worker_event() {
         let (tx, mut rx) = mpsc::unbounded_channel();
@@ -1225,7 +1258,15 @@ mod tests {
         ))))
         .unwrap();
 
-        match next_loop_input(&mut rx, true, std::future::ready(Some(()))).await {
+        match next_loop_input(
+            &mut rx,
+            true,
+            std::future::ready(Some(())),
+            false,
+            std::future::pending::<()>(),
+        )
+        .await
+        {
             LoopInput::Terminal(Ok(TermEvent::Key(key))) => {
                 assert_eq!(key.code, KeyCode::Char('x'));
             }
@@ -1237,7 +1278,15 @@ mod tests {
     async fn terminal_event_is_preserved_after_worker_event_wins() {
         let (tx, mut rx) = mpsc::unbounded_channel();
 
-        match next_loop_input(&mut rx, true, std::future::ready(Some(1_u8))).await {
+        match next_loop_input(
+            &mut rx,
+            true,
+            std::future::ready(Some(1_u8)),
+            false,
+            std::future::pending::<()>(),
+        )
+        .await
+        {
             LoopInput::Worker(Some(1)) => {}
             _ => panic!("expected the first ready Worker event to win before any terminal input"),
         }
@@ -1248,7 +1297,15 @@ mod tests {
         ))))
         .unwrap();
 
-        match next_loop_input(&mut rx, true, std::future::ready(Some(2_u8))).await {
+        match next_loop_input(
+            &mut rx,
+            true,
+            std::future::ready(Some(2_u8)),
+            false,
+            std::future::pending::<()>(),
+        )
+        .await
+        {
             LoopInput::Terminal(Ok(TermEvent::Key(key))) => {
                 assert_eq!(key.code, KeyCode::Char('y'));
             }

crates/tui/src/ui.rs

@@ -36,6 +36,9 @@ use crate::task::{TaskCounts, TaskEntry, TaskStatus, TaskStore};
 use crate::text_selection::{HistoryViewport, SelectionRow};
 use crate::view_mode::Mode;
 
+const RUN_SPINNER_FRAMES: [&str; 8] = ["⣷", "⣯", "⣟", "⡿", "⢿", "⣻", "⣽", "⣾"];
+const RUN_SPINNER_FRAME_MS: u128 = 80;
+
 pub fn draw(frame: &mut Frame, app: &mut App) {
     let area = frame.area();
     // Input content starts after the prompt (`> ` or `: `), so the width
@@ -57,14 +60,22 @@ pub fn draw(frame: &mut Frame, app: &mut App) {
     let tabs = app.worker_view_tabs();
     let show_tabs = tabs.len() > 1;
     let mini_view_h = task_mini_view_height(&app.selected_worker_view().task_store, show_tabs);
-    // One blank row separates the history tail from the mini-view so
-    // the latest message doesn't visually crash into the task summary.
-    // Folds away with the mini-view when there are no tasks.
-    let mini_view_gap = if mini_view_h > 0 { 1 } else { 0 };
+    let run_status_h = u16::from(app.running);
+    let run_status_gap = run_status_h;
+    // One blank row separates the history tail from the run/task mini-view so
+    // the latest message doesn't visually crash into operational status.
+    // Folds away when neither run status nor tasks are visible.
+    let mini_view_gap = if mini_view_h > 0 || run_status_h > 0 {
+        1
+    } else {
+        0
+    };
 
     let chunks = Layout::vertical([
         Constraint::Min(0),                 // history view
-        Constraint::Length(mini_view_gap), // gap above mini-view
+        Constraint::Length(mini_view_gap),  // gap above run/task mini-view
+        Constraint::Length(run_status_h),   // active run status
+        Constraint::Length(run_status_gap), // gap below active run status
         Constraint::Length(mini_view_h),    // task mini-view (0 when empty)
         Constraint::Length(1),              // separator
         Constraint::Length(1),              // status
@@ -82,24 +93,27 @@ pub fn draw(frame: &mut Frame, app: &mut App) {
     } else {
         draw_history(frame, app, chunks[0]);
     }
+    if run_status_h > 0 {
+        draw_run_status(frame, app, chunks[2]);
+    }
     if mini_view_h > 0 {
         draw_task_mini_view(
             frame,
             &app.selected_worker_view().task_store,
             &tabs,
-            chunks[2],
+            chunks[4],
         );
     }
-    draw_separator(frame, chunks[3]);
+    draw_separator(frame, chunks[5]);
     // Status/composer/control surfaces remain parent-owned. View selection changes
     // only transcript/task presentation and never implies SubWorker control.
-    draw_status(frame, app, chunks[4]);
-    draw_input(frame, app, &input_render, chunks[5]);
-    draw_actionbar(frame, app, chunks[6]);
+    draw_status(frame, app, chunks[6]);
+    draw_input(frame, app, &input_render, chunks[7]);
+    draw_actionbar(frame, app, chunks[8]);
     if app.is_command_mode() {
-        draw_command_popup(frame, app, chunks[5]);
+        draw_command_popup(frame, app, chunks[7]);
     } else if let Some(state) = app.completion.as_ref().filter(|c| c.is_active()) {
-        draw_completion_popup(frame, state, chunks[5]);
+        draw_completion_popup(frame, state, chunks[7]);
     }
 }
 
@@ -120,6 +134,65 @@ fn task_mini_view_height(store: &TaskStore, show_tabs: bool) -> u16 {
     (active_shown as u16).saturating_add(1)
 }
 
+fn draw_run_status(frame: &mut Frame, app: &App, area: Rect) {
+    frame.render_widget(Paragraph::new(run_status_line(app, Instant::now())), area);
+}
+
+fn run_status_line(app: &App, now: Instant) -> Line<'static> {
+    let elapsed = app
+        .run_started_at
+        .and_then(|started_at| now.checked_duration_since(started_at))
+        .unwrap_or_default();
+    let spinner_index =
+        ((elapsed.as_millis() / RUN_SPINNER_FRAME_MS) as usize) % RUN_SPINNER_FRAMES.len();
+    let request_label = if app.run_requests == 1 {
+        "1 req".to_owned()
+    } else {
+        format!("{} reqs", app.run_requests)
+    };
+
+    Line::from(vec![
+        Span::styled(
+            RUN_SPINNER_FRAMES[spinner_index],
+            Style::default()
+                .fg(Color::Cyan)
+                .add_modifier(Modifier::BOLD),
+        ),
+        Span::raw(" "),
+        Span::styled(
+            fmt_run_elapsed(elapsed.as_secs()),
+            Style::default().fg(Color::Gray),
+        ),
+        Span::styled(" ・ ", Style::default().fg(Color::DarkGray)),
+        Span::styled(request_label, Style::default().fg(Color::Gray)),
+        Span::styled(" | ", Style::default().fg(Color::DarkGray)),
+        Span::styled("↑", Style::default().fg(Color::Green)),
+        Span::styled(
+            fmt_tokens(app.run_upload_tokens),
+            Style::default().fg(Color::Green),
+        ),
+        Span::styled("/", Style::default().fg(Color::DarkGray)),
+        Span::styled("↓", Style::default().fg(Color::Yellow)),
+        Span::styled(
+            fmt_tokens(app.run_output_tokens),
+            Style::default().fg(Color::Yellow),
+        ),
+    ])
+}
+
+fn fmt_run_elapsed(secs: u64) -> String {
+    let hours = secs / 3600;
+    let minutes = (secs % 3600) / 60;
+    let seconds = secs % 60;
+    if hours > 0 {
+        format!("{hours}h {minutes}m {seconds:02}s")
+    } else if minutes > 0 {
+        format!("{minutes}m {seconds:02}s")
+    } else {
+        format!("{seconds}s")
+    }
+}
+
 fn draw_task_mini_view(frame: &mut Frame, store: &TaskStore, tabs: &[WorkerViewTab], area: Rect) {
     if area.height == 0 || area.width == 0 {
         return;
@@ -1726,32 +1799,7 @@ fn draw_status(frame: &mut Frame, app: &App, area: Rect) {
         ),
     ];
 
-    if app.running {
-        let status = if let Some(wait_event) = &app.latest_llm_wait_event {
-            format!(
-                "request: {} | ↑{}/↓{} | {wait_event}",
-                app.run_requests,
-                fmt_tokens(app.run_upload_tokens),
-                fmt_tokens(app.run_output_tokens),
-            )
-        } else if let Some(tool) = &app.current_tool {
-            format!(
-                "request: {} | ↑{}/↓{} | tool: {tool}",
-                app.run_requests,
-                fmt_tokens(app.run_upload_tokens),
-                fmt_tokens(app.run_output_tokens),
-            )
-        } else {
-            format!(
-                "request: {} | ↑{}/↓{}",
-                app.run_requests,
-                fmt_tokens(app.run_upload_tokens),
-                fmt_tokens(app.run_output_tokens),
-            )
-        };
-        spans.push(Span::raw(" | "));
-        spans.push(Span::styled(status, Style::default().fg(Color::Yellow)));
-    } else if app.paused {
+    if app.paused {
         spans.push(Span::raw(" | "));
         spans.push(Span::styled(
             "paused",
@@ -1763,7 +1811,7 @@ fn draw_status(frame: &mut Frame, app: &App, area: Rect) {
             " — Enter to resume, Ctrl-X to cancel, type to start new turn",
             Style::default().fg(Color::DarkGray),
         ));
-    } else {
+    } else if !app.running {
         spans.push(Span::styled(" idle", Style::default().fg(Color::DarkGray)));
     }
 
@@ -2053,6 +2101,28 @@ mod tests {
     use protocol::WorkerStatus;
     use std::time::{Duration, Instant};
 
+    #[test]
+    fn run_status_line_matches_console_metrics_and_spinner_frame() {
+        let now = Instant::now();
+        let mut app = App::new("worker".into());
+        app.run_started_at = now.checked_sub(Duration::from_millis(160));
+        app.run_requests = 1;
+        app.run_upload_tokens = 1_200;
+        app.run_output_tokens = 45;
+
+        assert_eq!(
+            line_text(&run_status_line(&app, now)),
+            "⣟ 0s ・ 1 req | ↑1.2k/↓45"
+        );
+    }
+
+    #[test]
+    fn run_elapsed_uses_console_style_units() {
+        assert_eq!(fmt_run_elapsed(9), "9s");
+        assert_eq!(fmt_run_elapsed(65), "1m 05s");
+        assert_eq!(fmt_run_elapsed(3_726), "1h 2m 06s");
+    }
+
     #[test]
     fn task_summary_right_aligns_worker_tabs_and_highlights_selection() {
         let tabs = vec![