Clarify resume guidance in exit summaries (#41938)

## What changed

- Show the exact `codex resume <thread-id>` command on its own indented line.
- When a thread has a name, also explain that users can run `codex resume` and select the named thread from the picker.
- Apply command highlighting to both resume options when color is enabled.

## Testing

- Cover unnamed, empty-name, named, colored, and embedded-session exit summaries.

GitOrigin-RevId: d97c04db8a34376c6d9ea839b515b04a384b85d1

codex-rs/cli/src/main.rs

@@ -3735,7 +3735,10 @@ mod tests {
         AppExitInfo {
             token_usage,
             thread_id,
-            resume_hint: codex_utils_cli::resume_hint(thread_name, thread_id),
+            resume_hint: thread_id.map(|thread_id| codex_tui::ResumableThread {
+                thread_id,
+                thread_name: thread_name.map(str::to_string),
+            }),
             disconnect_info: None,
             update_action: None,
             exit_reason: ExitReason::UserRequested,
@@ -3844,27 +3847,26 @@ mod tests {
             lines,
             vec![
                 "Token usage: total=2 input=0 output=2".to_string(),
-                "To continue this session, run codex resume 123e4567-e89b-12d3-a456-426614174000"
-                    .to_string(),
+                "To continue this session, run:".to_string(),
+                "  codex resume 123e4567-e89b-12d3-a456-426614174000".to_string(),
             ]
         );
     }
 
     #[test]
     fn format_exit_messages_includes_resume_hint_without_color() {
-        let exit_info = sample_exit_info(
-            Some("123e4567-e89b-12d3-a456-426614174000"),
-            /*thread_name*/ None,
-        );
-        let lines = exit_info.format_exit_messages(/*color_enabled*/ false);
-        assert_eq!(
-            lines,
-            vec![
-                "Token usage: total=2 input=0 output=2".to_string(),
-                "To continue this session, run codex resume 123e4567-e89b-12d3-a456-426614174000"
-                    .to_string(),
-            ]
-        );
+        insta::allow_duplicates! {
+            for thread_name in [None, Some("")] {
+                let exit_info =
+                    sample_exit_info(Some("123e4567-e89b-12d3-a456-426614174000"), thread_name);
+                let lines = exit_info.format_exit_messages(/*color_enabled*/ false);
+                insta::assert_snapshot!(lines.join("\n"), @"
+                Token usage: total=2 input=0 output=2
+                To continue this session, run:
+                  codex resume 123e4567-e89b-12d3-a456-426614174000
+                ");
+            }
+        }
     }
 
     #[test]
@@ -3874,8 +3876,14 @@ mod tests {
             /*thread_name*/ None,
         );
         let lines = exit_info.format_exit_messages(/*color_enabled*/ true);
-        assert_eq!(lines.len(), 2);
-        assert!(lines[1].contains("\u{1b}[36m"));
+        assert_eq!(
+            lines,
+            vec![
+                "Token usage: total=2 input=0 output=2",
+                "To continue this session, run:",
+                "  \u{1b}[36mcodex resume 123e4567-e89b-12d3-a456-426614174000\u{1b}[39m",
+            ]
+        );
     }
 
     #[test]
@@ -3885,11 +3893,28 @@ mod tests {
             Some("my-thread"),
         );
         let lines = exit_info.format_exit_messages(/*color_enabled*/ false);
+        insta::assert_snapshot!(lines.join("\n"), @"
+        Token usage: total=2 input=0 output=2
+        To continue this session, run:
+          codex resume 123e4567-e89b-12d3-a456-426614174000
+        Or run codex resume and select my-thread.
+        ");
+    }
+
+    #[test]
+    fn format_exit_messages_colors_commands_and_thread_name() {
+        let exit_info = sample_exit_info(
+            Some("123e4567-e89b-12d3-a456-426614174000"),
+            Some("my-thread"),
+        );
+        let lines = exit_info.format_exit_messages(/*color_enabled*/ true);
         assert_eq!(
             lines,
             vec![
-                "Token usage: total=2 input=0 output=2".to_string(),
-                "To continue this session, run codex resume, then select my-thread (123e4567-e89b-12d3-a456-426614174000)".to_string(),
+                "Token usage: total=2 input=0 output=2",
+                "To continue this session, run:",
+                "  \u{1b}[36mcodex resume 123e4567-e89b-12d3-a456-426614174000\u{1b}[39m",
+                "Or run \u{1b}[36mcodex resume\u{1b}[39m and select \u{1b}[36mmy-thread\u{1b}[39m.",
             ]
         );
     }

codex-rs/tui/src/app.rs

@@ -423,7 +423,7 @@ const COMMIT_ANIMATION_TICK: Duration = tui::TARGET_FRAME_INTERVAL;
 pub struct AppExitInfo {
     pub token_usage: TokenUsage,
     pub thread_id: Option<ThreadId>,
-    pub resume_hint: Option<String>,
+    pub resume_hint: Option<ResumableThread>,
     pub disconnect_info: Option<DisconnectInfo>,
     pub update_action: Option<UpdateAction>,
     pub exit_reason: ExitReason,
@@ -443,6 +443,7 @@ impl AppExitInfo {
 }
 
 pub use exit_summary::DisconnectInfo;
+pub use exit_summary::ResumableThread;
 
 #[derive(Debug)]
 pub(crate) enum AppRunControl {
@@ -479,12 +480,6 @@ fn session_summary(
     })
 }
 
-#[derive(Debug, Clone, PartialEq, Eq)]
-struct ResumableThread {
-    thread_id: ThreadId,
-    thread_name: Option<String>,
-}
-
 fn resumable_thread(
     thread_id: Option<ThreadId>,
     thread_name: Option<String>,

codex-rs/tui/src/app/exit_summary.rs

@@ -1,10 +1,18 @@
 //! Exit output distinguishes a disconnected client from a stopped embedded server.
+//! Persisted sessions offer a direct UUID command and an optional named picker hint.
 
 use super::*;
 use crate::RemoteAppServerEndpoint;
 use crate::exec_command::escape_command;
 use crate::status::remote_connection::sanitized_websocket_url;
 
+/// A persisted thread that can be resumed after the TUI exits.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct ResumableThread {
+    pub thread_id: ThreadId,
+    pub thread_name: Option<String>,
+}
+
 /// Reconnection and stop guidance for a task owned by a persistent app server.
 #[derive(Debug, Clone)]
 pub struct DisconnectInfo {
@@ -57,7 +65,7 @@ impl App {
         AppExitInfo {
             token_usage: self.token_usage(),
             thread_id,
-            resume_hint: resume_hint_for_resumable_thread(
+            resume_hint: resumable_thread(
                 thread_id,
                 self.chat_widget.thread_name(),
                 self.chat_widget.rollout_path().as_deref(),
@@ -125,11 +133,19 @@ impl AppExitInfo {
         }
         if let ExitReason::Archived(thread_id) = self.exit_reason {
             lines.push(format!("Session archived: {thread_id}"));
-        } else if let Some(resume_command) = self.resume_hint {
+        } else if let Some(thread) = self.resume_hint {
+            lines.push("To continue this session, run:".to_string());
             lines.push(format!(
-                "To continue this session, run {}",
-                color_command(resume_command),
+                "  {}",
+                color_command(format!("codex resume {}", thread.thread_id)),
             ));
+            if let Some(thread_name) = thread.thread_name.filter(|name| !name.is_empty()) {
+                lines.push(format!(
+                    "Or run {} and select {}.",
+                    color_command("codex resume".to_string()),
+                    color_command(thread_name),
+                ));
+            }
         } else if let Some(thread_id) = self.thread_id {
             lines.push(format!("Session ID: {thread_id}"));
         }

codex-rs/tui/src/app/tests/background_exit_tests.rs

@@ -52,7 +52,7 @@ async fn remote_disconnect_exit_summary_does_not_require_a_local_rollout_or_prin
 #[tokio::test]
 async fn embedded_exit_keeps_the_session_summary() {
     let (mut app, _, _) = make_test_app_with_channels().await;
-    prepare_local_daemon_thread(&mut app).unwrap();
+    let thread_id = prepare_local_daemon_thread(&mut app).unwrap();
     app.app_server_target = AppServerTarget::Embedded;
     let mut exit_info = app.exit_info(ExitReason::UserRequested);
     exit_info.token_usage = TokenUsage {
@@ -60,14 +60,19 @@ async fn embedded_exit_keeps_the_session_summary() {
         total_tokens: 2,
         ..Default::default()
     };
-    exit_info.resume_hint = Some("codex resume THREAD_ID".to_string());
-    assert_eq!(
-        exit_info.format_exit_messages(/*color_enabled*/ false),
-        vec![
-            "Token usage: total=2 input=0 output=2",
-            "To continue this session, run codex resume THREAD_ID",
-        ]
-    );
+    exit_info.resume_hint = Some(ResumableThread {
+        thread_id,
+        thread_name: None,
+    });
+    let output = exit_info
+        .format_exit_messages(/*color_enabled*/ false)
+        .join("\n")
+        .replace(&thread_id.to_string(), "THREAD_ID");
+    assert_snapshot!(output, @"
+    Token usage: total=2 input=0 output=2
+    To continue this session, run:
+      codex resume THREAD_ID
+    ");
 }
 
 fn prepare_local_daemon_thread(app: &mut App) -> Result<ThreadId> {

codex-rs/tui/src/lib.rs

@@ -23,6 +23,7 @@ use app::App;
 pub use app::AppExitInfo;
 pub use app::DisconnectInfo;
 pub use app::ExitReason;
+pub use app::ResumableThread;
 use app_server_session::AppServerSession;
 use app_server_session::ThreadParamsMode;
 use codex_app_server_client::AppServerClient;