diff --git a/dist/chunk-kd78dgfb.js b/dist/chunk-15vweq1q.js
similarity index 75%
rename from dist/chunk-kd78dgfb.js
rename to dist/chunk-15vweq1q.js
index 45a9ef5..026d649 100644
--- a/dist/chunk-kd78dgfb.js
+++ b/dist/chunk-15vweq1q.js
@@ -15,6 +15,13 @@ import { setProp as _$setProp } from "@opentui/solid";
 import { createElement as _$createElement } from "@opentui/solid";
 import { TextAttributes } from "@opentui/core";
 import { Show } from "solid-js";
+function truncateWithEllipsis(text, maxWidth) {
+  if (maxWidth <= 0)
+    return "";
+  if (text.length <= maxWidth)
+    return text;
+  return text.substring(0, Math.max(0, maxWidth - 1)) + "\u2026";
+}
 function itemIndexAtScreenY(el, screenY) {
   const internals = el;
   if (!internals.linesPerItem)
@@ -25,8 +32,19 @@ function itemIndexAtScreenY(el, screenY) {
   const index = internals.scrollOffset + Math.floor(localY / internals.linesPerItem);
   return index >= 0 && index < el.options.length ? index : null;
 }
+var BORDER_WIDTH = 2;
+var ITEM_LEFT_PADDING = 1;
+var ITEM_INDICATOR_WIDTH = 2;
 function Sidebar(props) {
   let select;
+  const contentWidth = () => Math.max(0, (props.width ?? 24) - BORDER_WIDTH);
+  const itemTextWidth = () => Math.max(0, contentWidth() - ITEM_LEFT_PADDING - ITEM_INDICATOR_WIDTH);
+  const displayTitle = () => props.title ? truncateWithEllipsis(props.title, contentWidth()) : props.title;
+  const displayItems = () => props.items.map((item) => ({
+    ...item,
+    name: truncateWithEllipsis(item.name, itemTextWidth()),
+    description: truncateWithEllipsis(item.description, itemTextWidth())
+  }));
   const handleMouseDown = (event) => {
     if (!select)
       return;
@@ -59,7 +77,7 @@ function Sidebar(props) {
       get children() {
         return [(() => {
           var _el$2 = _$createElement("text");
-          _$insert(_el$2, () => props.title);
+          _$insert(_el$2, displayTitle);
           _$effect((_$p) => _$setProp(_el$2, "attributes", TextAttributes.BOLD, _$p));
           return _el$2;
         })(), (() => {
@@ -91,7 +109,7 @@ function Sidebar(props) {
       props.onConfirm?.(option);
     });
     _$effect((_p$) => {
-      var _v$ = props.width ?? 24, _v$2 = theme.borderStyle, _v$3 = props.focused ? props.accentColor ?? theme.primary : props.mutedColor ?? theme.muted, _v$4 = props.focused, _v$5 = props.items, _v$6 = theme.mouse ? handleMouseDown : undefined, _v$7 = theme.mouse ? handleMouseScroll : undefined, _v$8 = props.backgroundColor ?? "transparent", _v$9 = props.textColor ?? presets.select.textColor, _v$0 = props.focusedBackgroundColor ?? "transparent", _v$1 = props.focusedTextColor ?? presets.select.focusedTextColor, _v$10 = props.selectedBackgroundColor ?? presets.select.selectedBackgroundColor, _v$11 = props.selectedTextColor ?? presets.select.selectedTextColor, _v$12 = props.descriptionColor ?? presets.select.descriptionColor, _v$13 = props.selectedDescriptionColor ?? presets.select.selectedDescriptionColor;
+      var _v$ = props.width ?? 24, _v$2 = theme.borderStyle, _v$3 = props.focused ? props.accentColor ?? theme.primary : props.mutedColor ?? theme.muted, _v$4 = props.focused, _v$5 = displayItems(), _v$6 = theme.mouse ? handleMouseDown : undefined, _v$7 = theme.mouse ? handleMouseScroll : undefined, _v$8 = props.backgroundColor ?? "transparent", _v$9 = props.textColor ?? presets.select.textColor, _v$0 = props.focusedBackgroundColor ?? "transparent", _v$1 = props.focusedTextColor ?? presets.select.focusedTextColor, _v$10 = props.selectedBackgroundColor ?? presets.select.selectedBackgroundColor, _v$11 = props.selectedTextColor ?? presets.select.selectedTextColor, _v$12 = props.descriptionColor ?? presets.select.descriptionColor, _v$13 = props.selectedDescriptionColor ?? presets.select.selectedDescriptionColor;
       _v$ !== _p$.e && (_p$.e = _$setProp(_el$, "width", _v$, _p$.e));
       _v$2 !== _p$.t && (_p$.t = _$setProp(_el$, "borderStyle", _v$2, _p$.t));
       _v$3 !== _p$.a && (_p$.a = _$setProp(_el$, "borderColor", _v$3, _p$.a));
diff --git a/dist/components/Sidebar.js b/dist/components/Sidebar.js
index 3015dcb..95e2fc4 100644
--- a/dist/components/Sidebar.js
+++ b/dist/components/Sidebar.js
@@ -1,7 +1,7 @@
 // @bun
 import {
   Sidebar
-} from "../chunk-kd78dgfb.js";
+} from "../chunk-15vweq1q.js";
 import"../chunk-x7m82z3z.js";
 import"../chunk-7f8jagy5.js";
 import"../chunk-hcq62p48.js";
diff --git a/dist/components/index.js b/dist/components/index.js
index c2f9f52..3bfd6c8 100644
--- a/dist/components/index.js
+++ b/dist/components/index.js
@@ -1,10 +1,10 @@
 // @bun
-import {
-  Sidebar
-} from "../chunk-kd78dgfb.js";
 import {
   NotificationHost
 } from "../chunk-fqzxyvhv.js";
+import {
+  Sidebar
+} from "../chunk-15vweq1q.js";
 import {
   Toggle
 } from "../chunk-mezyz219.js";
diff --git a/src/components/Sidebar.tsx b/src/components/Sidebar.tsx
index 745d330..421334e 100644
--- a/src/components/Sidebar.tsx
+++ b/src/components/Sidebar.tsx
@@ -9,6 +9,12 @@ export interface SidebarHandle {
   focus(): void;
 }
 
+function truncateWithEllipsis(text: string, maxWidth: number): string {
+  if (maxWidth <= 0) return "";
+  if (text.length <= maxWidth) return text;
+  return text.substring(0, Math.max(0, maxWidth - 1)) + "…";
+}
+
 function itemIndexAtScreenY(el: SelectRenderable, screenY: number): number | null {
   const internals = el as unknown as { scrollOffset: number; linesPerItem: number };
   if (!internals.linesPerItem) return null;
@@ -40,9 +46,25 @@ export interface SidebarProps {
   selectedDescriptionColor?: ColorInput;
 }
 
+const BORDER_WIDTH = 2;
+const ITEM_LEFT_PADDING = 1;
+const ITEM_INDICATOR_WIDTH = 2;
+
 export function Sidebar(props: SidebarProps) {
   let select: SelectRenderable | undefined;
 
+  const contentWidth = () => Math.max(0, (props.width ?? 24) - BORDER_WIDTH);
+  const itemTextWidth = () => Math.max(0, contentWidth() - ITEM_LEFT_PADDING - ITEM_INDICATOR_WIDTH);
+
+  const displayTitle = () => (props.title ? truncateWithEllipsis(props.title, contentWidth()) : props.title);
+
+  const displayItems = () =>
+    props.items.map((item) => ({
+      ...item,
+      name: truncateWithEllipsis(item.name, itemTextWidth()),
+      description: truncateWithEllipsis(item.description, itemTextWidth()),
+    }));
+
   const handleMouseDown = (event: MouseEvent) => {
     if (!select) return;
     const index = itemIndexAtScreenY(select, event.y);
@@ -70,7 +92,7 @@ export function Sidebar(props: SidebarProps) {
       flexDirection="column"
     >
       <Show when={props.title}>
-        <text attributes={TextAttributes.BOLD}>{props.title}</text>
+        <text attributes={TextAttributes.BOLD}>{displayTitle()}</text>
         <text> </text>
       </Show>
       <select
@@ -88,7 +110,7 @@ export function Sidebar(props: SidebarProps) {
         flexGrow={1}
         focused={props.focused}
         showScrollIndicator
-        options={props.items}
+        options={displayItems()}
         onMouseDown={theme.mouse ? handleMouseDown : undefined}
         onMouseScroll={theme.mouse ? handleMouseScroll : undefined}
         backgroundColor={props.backgroundColor ?? "transparent"}