diff --git a/src/components/XtermPane.tsx b/src/components/XtermPane.tsx
index 3a6594b..242fa27 100644
--- a/src/components/XtermPane.tsx
+++ b/src/components/XtermPane.tsx
@@ -165,12 +165,16 @@ export default function XtermPane({
         if (ta) ta.addEventListener("focus", () => onFocusRef.current?.(), true);
       }
 
-      // Re-fit on container resize; forward new size to the PTY. We
-      // coalesce multiple ResizeObserver firings into one rAF so a single
-      // gutter drag tick = one fit/resize/repaint, then explicitly call
-      // term.refresh() so the DOM renderer fully repaints (without this,
-      // shrinking a pane sometimes leaves stale glyphs in the freed rows).
+      // Re-fit on container resize. xterm.fit() + a forced refresh run
+      // immediately (visual must stay smooth during a drag), but the
+      // actual PTY resize call is debounced: every SIGWINCH makes bash
+      // redraw the prompt, and if we send 60+ of them per second during a
+      // gutter drag, the redraws corrupt each other and the terminal
+      // fills with garbled half-prompts. The debounce means the PTY
+      // hears about resizes ~150 ms after you stop dragging, at the
+      // final size — bash gets a single clean redraw.
       let resizeRaf: number | null = null;
+      let resizePtyTimer: number | null = null;
       ro = new ResizeObserver(() => {
         if (resizeRaf != null) return;
         resizeRaf = requestAnimationFrame(() => {
@@ -178,10 +182,14 @@ export default function XtermPane({
           if (!term) return;
           try {
             fit.fit();
-            if (paneId != null) {
-              void resizePane(paneId, term.cols, term.rows);
-            }
             term.refresh(0, term.rows - 1);
+            if (resizePtyTimer != null) clearTimeout(resizePtyTimer);
+            resizePtyTimer = window.setTimeout(() => {
+              resizePtyTimer = null;
+              if (paneId != null && term) {
+                void resizePane(paneId, term.cols, term.rows);
+              }
+            }, 150);
           } catch (e) {
             console.warn("resize failed", e);
           }