tui: cancel paused turns with ctrl-x

crates/pod/src/controller.rs

@@ -900,12 +900,36 @@ async fn controller_loop<C, St>(
                 pending = Some(PendingRun::Resume);
             }
 
-            Method::Cancel => {
+            Method::Cancel => match shared_state.get_status() {
-                let _ = event_tx.send(Event::Error {
+                PodStatus::Paused => match pod.cancel_paused_turn() {
-                    code: ErrorCode::NotRunning,
+                    Ok(()) => {
-                    message: "Pod is not running".into(),
+                        set_controller_status(
-                });
+                            &shared_state,
-            }
+                            &runtime_dir,
+                            &event_tx,
+                            PodStatus::Idle,
+                        )
+                        .await;
+                    }
+                    Err(error) => {
+                        let _ = event_tx.send(Event::Error {
+                            code: worker_error_code(&error),
+                            message: error.to_string(),
+                        });
+                    }
+                },
+                PodStatus::Idle => {
+                    let _ = event_tx.send(Event::Error {
+                        code: ErrorCode::NotRunning,
+                        message: "Pod is not running".into(),
+                    });
+                }
+                PodStatus::Running => {
+                    // Running turns receive Cancel through drive_turn; this is
+                    // only reachable across a defensive race window.
+                    let _ = cancel_tx.try_send(());
+                }
+            },
 
             Method::Pause => {
                 // Already paused → idempotent no-op. Otherwise the

crates/pod/src/pod.rs

@@ -1863,6 +1863,28 @@ impl<C: LlmClient, St: Store> Pod<C, St> {
         Ok(())
     }
 
+    /// Abandon a paused/interrupted turn without resuming it.
+    ///
+    /// This uses the same explicit interrupt preparation as the next fresh
+    /// `run` would have used, then clears the worker's interrupted marker so
+    /// future input is treated as a normal new turn instead of a resume.
+    /// The `RunCompleted` marker is a state-reset record for session replay;
+    /// no provider stream is resumed or mutated here.
+    pub fn cancel_paused_turn(&mut self) -> Result<(), PodError> {
+        if !self.worker().last_run_interrupted() {
+            return Ok(());
+        }
+
+        self.apply_interrupt_prep()?;
+        self.worker_mut().set_last_run_interrupted(false);
+        self.commit_entry(LogEntry::RunCompleted {
+            ts: segment_log::now_millis(),
+            result: WorkerResult::Finished,
+            interrupted: false,
+        })?;
+        Ok(())
+    }
+
     /// Validate explicit workflow invocations without reading dependency
     /// bodies. Called from `Pod::run` entry so an invalid slug aborts
     /// the turn before any session-log commit or interrupt-prep side

crates/pod/tests/controller_test.rs

@@ -1946,6 +1946,134 @@ async fn paused_then_run_closes_orphan_tool_use_for_next_request() {
     );
 }
 
+#[tokio::test]
+async fn paused_cancel_abandons_resume_and_next_input_is_fresh_run() {
+    let tool_name = "HangyTool";
+    let first = MockResponse::Complete(vec![
+        LlmEvent::tool_use_start(0, "call_cancelled", tool_name),
+        LlmEvent::tool_input_delta(0, "{}"),
+        LlmEvent::tool_use_stop(0),
+        LlmEvent::Status(StatusEvent {
+            status: ResponseStatus::Completed,
+        }),
+    ]);
+    let second = MockResponse::Complete(vec![
+        LlmEvent::text_block_start(0),
+        LlmEvent::text_delta(0, "fresh output"),
+        LlmEvent::text_block_stop(0, None),
+        LlmEvent::Status(StatusEvent {
+            status: ResponseStatus::Completed,
+        }),
+    ]);
+    let client = MockClient::sequential(vec![first, second]);
+    let client_for_assert = client.clone();
+    let mut pod = make_pod(client).await;
+    pod.worker_mut()
+        .register_tool(hanging_tool_definition(tool_name));
+    let handle = spawn_controller(pod).await;
+    let mut rx = handle.subscribe();
+
+    handle.send(Method::run_text("first")).await.unwrap();
+    assert!(
+        drain_until(&mut rx, std::time::Duration::from_secs(2), |e| matches!(
+            e,
+            Event::ToolCallDone { .. }
+        ))
+        .await,
+        "tool_call_done should arrive before pause"
+    );
+
+    handle.send(Method::Pause).await.unwrap();
+    assert!(
+        drain_until(&mut rx, std::time::Duration::from_secs(2), |e| matches!(
+            e,
+            Event::RunEnd {
+                result: protocol::RunResult::Paused
+            }
+        ))
+        .await,
+        "expected RunEnd::Paused"
+    );
+    wait_for_status(&handle, PodStatus::Paused).await;
+
+    handle.send(Method::Cancel).await.unwrap();
+    wait_for_status(&handle, PodStatus::Idle).await;
+    assert_eq!(
+        client_for_assert.captured_requests().len(),
+        1,
+        "paused cancel must not resume or start another LLM request"
+    );
+
+    handle.send(Method::Resume).await.unwrap();
+    assert!(
+        drain_until(&mut rx, std::time::Duration::from_secs(2), |e| matches!(
+            e,
+            Event::Error {
+                code: pod::ErrorCode::NotPaused,
+                ..
+            }
+        ))
+        .await,
+        "resume after paused cancel should be rejected as not paused"
+    );
+    assert_eq!(
+        client_for_assert.captured_requests().len(),
+        1,
+        "rejected resume must not call the LLM"
+    );
+
+    handle
+        .send(Method::run_text("fresh request"))
+        .await
+        .unwrap();
+    assert!(
+        drain_until(&mut rx, std::time::Duration::from_secs(2), |e| matches!(
+            e,
+            Event::RunEnd {
+                result: protocol::RunResult::Finished
+            }
+        ))
+        .await,
+        "expected RunEnd::Finished for fresh run"
+    );
+
+    let requests = client_for_assert.captured_requests();
+    assert_eq!(
+        requests.len(),
+        2,
+        "fresh input should start exactly one new LLM request"
+    );
+    let items = &requests[1].items;
+    assert!(
+        items.iter().any(|item| matches!(
+            item,
+            llm_worker::Item::ToolResult { call_id, summary, .. }
+                if call_id == "call_cancelled" && summary == "[Interrupted by user]"
+        )),
+        "paused cancel should close orphan tool_use before future requests: {items:?}"
+    );
+    assert!(
+        items.iter().any(|item| matches!(
+            item,
+            llm_worker::Item::Message {
+                role: llm_worker::Role::System,
+                ..
+            } if item_text_contains(item, "interrupted by the user")
+        )),
+        "paused cancel should record an explicit interruption note: {items:?}"
+    );
+    assert!(
+        items.iter().any(|item| matches!(
+            item,
+            llm_worker::Item::Message {
+                role: llm_worker::Role::User,
+                ..
+            } if item_text_contains(item, "fresh request")
+        )),
+        "fresh user input should be part of the next normal run: {items:?}"
+    );
+}
+
 fn item_text_contains(item: &Item, needle: &str) -> bool {
     item.as_text().unwrap_or_default().contains(needle)
 }

crates/tui/src/console/mod.rs

@@ -938,11 +938,11 @@ fn handle_key(app: &mut App, key: KeyEvent) -> Option<Method> {
         }
         KeyCode::Char('c') if ctrl => Some(handle_pause_or_quit(app)),
         KeyCode::Char('x') if ctrl => Some(match app.pod_status {
-            PodStatus::Running => {
+            PodStatus::Running | PodStatus::Paused => {
                 app.clear_queued_inputs();
                 Some(Method::Cancel)
             }
-            PodStatus::Paused | PodStatus::Idle => Some(Method::Shutdown),
+            PodStatus::Idle => Some(Method::Shutdown),
         }),
         KeyCode::Char('d') if ctrl => {
             app.quit = true;
@@ -1518,6 +1518,30 @@ mod tests {
         assert_eq!(app.queued_input_count(), 0);
     }
 
+    #[test]
+    fn ctrl_x_cancels_paused_turn_without_shutdown() {
+        let mut app = App::new("agent".to_string());
+        app.set_pod_status(PodStatus::Paused);
+
+        let cancel = handle_key(
+            &mut app,
+            KeyEvent::new(KeyCode::Char('x'), KeyModifiers::CONTROL),
+        );
+        assert!(matches!(cancel, Some(Method::Cancel)));
+    }
+
+    #[test]
+    fn ctrl_x_shutdown_while_idle_is_unchanged() {
+        let mut app = App::new("agent".to_string());
+        app.set_pod_status(PodStatus::Idle);
+
+        let shutdown = handle_key(
+            &mut app,
+            KeyEvent::new(KeyCode::Char('x'), KeyModifiers::CONTROL),
+        );
+        assert!(matches!(shutdown, Some(Method::Shutdown)));
+    }
+
     #[test]
     fn word_navigation_keys_edit_composer() {
         let mut app = App::new("agent".to_string());

crates/tui/src/ui.rs

@@ -1446,7 +1446,7 @@ fn draw_status(frame: &mut Frame, app: &App, area: Rect) {
                 .add_modifier(Modifier::BOLD),
         ));
         spans.push(Span::styled(
-            " — Enter to resume, type to start new turn",
+            " — Enter to resume, Ctrl-X to cancel, type to start new turn",
             Style::default().fg(Color::DarkGray),
         ));
     } else {