diff --git a/app/src-tauri/src/claude_code.rs b/app/src-tauri/src/claude_code.rs
index c70f960cc0..7ff7a98ed3 100644
--- a/app/src-tauri/src/claude_code.rs
+++ b/app/src-tauri/src/claude_code.rs
@@ -43,7 +43,7 @@ end tell"#;
             .args(["-e", script])
             .spawn()
             .map_err(|e| format!("failed to open Terminal.app: {e}"))?;
-        return Ok("Terminal.app".into());
+        Ok("Terminal.app".into())
     }
 
     #[cfg(target_os = "linux")]
diff --git a/app/src-tauri/src/imessage_scanner/mod.rs b/app/src-tauri/src/imessage_scanner/mod.rs
index 289fd7cac0..e8cefd9929 100644
--- a/app/src-tauri/src/imessage_scanner/mod.rs
+++ b/app/src-tauri/src/imessage_scanner/mod.rs
@@ -372,7 +372,7 @@ fn extract_text_from_attributed_body(blob: &[u8]) -> Option<String> {
         .filter_map(|r| String::from_utf8(r).ok())
         .filter(|s| {
             let trimmed = s.trim();
-            trimmed.len() >= 2 && !ignored_markers.iter().any(|m| trimmed == *m)
+            trimmed.len() >= 2 && !ignored_markers.contains(&trimmed)
         })
         .max_by_key(|s| s.len())
         .map(|s| s.trim().to_string())
diff --git a/app/src-tauri/src/lib.rs b/app/src-tauri/src/lib.rs
index ee15b7897e..b597458325 100644
--- a/app/src-tauri/src/lib.rs
+++ b/app/src-tauri/src/lib.rs
@@ -1195,7 +1195,7 @@ fn mascot_window_show(app: AppHandle<AppRuntime>) -> Result<(), String> {
     log::info!("[mascot-window] show requested");
     #[cfg(target_os = "macos")]
     {
-        return mascot_native_window::show(&app);
+        mascot_native_window::show(&app)
     }
     #[cfg(not(target_os = "macos"))]
     {
@@ -1258,11 +1258,11 @@ fn notch_window_show(app: AppHandle<AppRuntime>) -> Result<(), String> {
     log::info!("[notch-window] show requested");
     #[cfg(target_os = "macos")]
     {
-        return dispatch_notch_on_main(app, |app| {
+        dispatch_notch_on_main(app, |app| {
             if let Err(e) = notch_window::show(app) {
                 log::warn!("[notch-window] show failed: {e}");
             }
-        });
+        })
     }
     #[cfg(not(target_os = "macos"))]
     {
@@ -1277,7 +1277,7 @@ fn notch_window_hide(app: AppHandle<AppRuntime>) -> Result<(), String> {
     log::info!("[notch-window] hide requested");
     #[cfg(target_os = "macos")]
     {
-        return dispatch_notch_on_main(app, |_app| notch_window::hide());
+        dispatch_notch_on_main(app, |_app| notch_window::hide())
     }
     #[cfg(not(target_os = "macos"))]
     {
diff --git a/app/src-tauri/src/mascot_native_window.rs b/app/src-tauri/src/mascot_native_window.rs
index 063361a356..5c27a36ea2 100644
--- a/app/src-tauri/src/mascot_native_window.rs
+++ b/app/src-tauri/src/mascot_native_window.rs
@@ -52,6 +52,9 @@ const DRAG_POLL_SECONDS: f64 = 0.016;
 /// dropped webview.
 struct MascotPanel {
     panel: Retained<NSPanel>,
+    // RAII keep-alive: never read, but dropping it deallocates the WKWebView and
+    // blanks the panel. Must outlive the show/hide cycle — do not remove.
+    #[allow(dead_code)]
     webview: Retained<WKWebView>,
     drag_timer: Retained<NSTimer>,
 }
@@ -389,7 +392,7 @@ unsafe fn build_webview(
         let _: () = msg_send![&*webview, setAutoresizingMask: 18u64]; // width|height
 
         // Make the webview the panel's content view so it fills the frame.
-        let webview_ref: &objc2::runtime::AnyObject = &*webview;
+        let webview_ref: &objc2::runtime::AnyObject = &webview;
         let webview_view: *mut objc2::runtime::AnyObject =
             webview_ref as *const _ as *mut objc2::runtime::AnyObject;
         let _: () = msg_send![panel, setContentView: webview_view];
diff --git a/app/src-tauri/src/native_notifications/mod.rs b/app/src-tauri/src/native_notifications/mod.rs
index 7fb5281e7d..18e23669a7 100644
--- a/app/src-tauri/src/native_notifications/mod.rs
+++ b/app/src-tauri/src/native_notifications/mod.rs
@@ -37,7 +37,7 @@ use crate::AppRuntime;
 pub fn notification_permission_state() -> Result<String, String> {
     #[cfg(target_os = "macos")]
     {
-        return macos::permission_state();
+        macos::permission_state()
     }
     #[cfg(not(target_os = "macos"))]
     {
@@ -51,7 +51,7 @@ pub fn notification_permission_state() -> Result<String, String> {
 pub fn notification_permission_request() -> Result<String, String> {
     #[cfg(target_os = "macos")]
     {
-        return macos::request_permission();
+        macos::request_permission()
     }
     #[cfg(not(target_os = "macos"))]
     {
diff --git a/app/src-tauri/src/notch_window.rs b/app/src-tauri/src/notch_window.rs
index 78653688cb..4fc3f7202a 100644
--- a/app/src-tauri/src/notch_window.rs
+++ b/app/src-tauri/src/notch_window.rs
@@ -61,10 +61,6 @@ thread_local! {
     static NOTCH: RefCell<Option<NotchPanel>> = const { RefCell::new(None) };
 }
 
-pub(crate) fn is_open() -> bool {
-    NOTCH.with(|cell| cell.borrow().is_some())
-}
-
 pub(crate) fn hide() {
     NOTCH.with(|cell| {
         if let Some(existing) = cell.borrow_mut().take() {
@@ -262,7 +258,7 @@ unsafe fn build_webview(
         // Auto-resize to fill the panel content view.
         let _: () = msg_send![&*webview, setAutoresizingMask: 18u64]; // width|height
 
-        let webview_ref: &objc2::runtime::AnyObject = &*webview;
+        let webview_ref: &objc2::runtime::AnyObject = &webview;
         let webview_view = webview_ref as *const _ as *mut objc2::runtime::AnyObject;
         let _: () = msg_send![panel, setContentView: webview_view];