diff --git a/src/backend/wayland/wl_backend.c b/src/backend/wayland/wl_backend.c
index 000de03..498ef93 100644
--- a/src/backend/wayland/wl_backend.c
+++ b/src/backend/wayland/wl_backend.c
@@ -23,6 +23,8 @@
  * geometry for mapped XDG toplevels.
  * Phase 43: focus_set delivers keyboard focus via wlr_seat; headless keyboard
  * device created and attached to seat; mapped toplevels auto-focused.
+ * Phase 44: client_synth_configure, window_resize send XDG configure events
+ * so clients receive size changes from the WM.
  */
 
 #ifdef HAVE_CONFIG_H
@@ -759,8 +761,21 @@ static void wl_window_map(WNativeWindow win) { (void)win; }
 static void wl_window_map_raised(WNativeWindow win) { (void)win; }
 static void wl_window_map_subwindows(WNativeWindow parent) { (void)parent; }
 static void wl_window_unmap(WNativeWindow win) { (void)win; }
-static void wl_window_move(WNativeWindow win, int x, int y) { (void)win; (void)x; (void)y; }
-static void wl_window_resize(WNativeWindow win, int w, int h) { (void)win; (void)w; (void)h; }
+static void wl_window_move(WNativeWindow win, int x, int y)
+{
+    /* Phase 44: position is tracked on the WM side; no server-side move needed. */
+    (void)win; (void)x; (void)y;
+}
+
+static void wl_window_resize(WNativeWindow win, int w, int h)
+{
+    /* Phase 44: send a configure with the new size. */
+    struct wl_toplevel_view *v = wl_find_view_by_id(win);
+    if (!v || !v->xdg_surface || w <= 0 || h <= 0)
+        return;
+    wlr_xdg_toplevel_set_size(v->xdg_surface, (uint32_t)w, (uint32_t)h);
+    wlr_xdg_surface_schedule_configure(v->xdg_surface);
+}
 static void wl_window_set_border(WNativeWindow win, unsigned long pixel) { (void)win; (void)pixel; }
 static void wl_window_set_border_width(WNativeWindow win, int width) { (void)win; (void)width; }
 static void wl_window_set_save_under(WNativeWindow win, int save_under) { (void)win; (void)save_under; }
@@ -831,7 +846,16 @@ static void
 wl_client_synth_configure(WNativeWindow client_win,
                           int x, int y, int width, int height,
                           int border_width, WNativeWindow above)
-{ (void)client_win; (void)x; (void)y; (void)width; (void)height; (void)border_width; (void)above; }
+{
+    /* Phase 44: send an XDG configure with the new size to the client. */
+    (void)x; (void)y; (void)border_width; (void)above;
+    struct wl_toplevel_view *v = wl_find_view_by_id(client_win);
+    if (!v || !v->xdg_surface)
+        return;
+    if (width > 0 && height > 0)
+        wlr_xdg_toplevel_set_size(v->xdg_surface, (uint32_t)width, (uint32_t)height);
+    wlr_xdg_surface_schedule_configure(v->xdg_surface);
+}
 
 static void wl_client_add_to_save_set(WNativeWindow win) { (void)win; }
 static void wl_client_remove_from_save_set(WNativeWindow win) { (void)win; }