diff --git a/packages/tui/src/component/dialog-move-session.tsx b/packages/tui/src/component/dialog-move-session.tsx
index af9d8209f5..ed2b870e27 100644
--- a/packages/tui/src/component/dialog-move-session.tsx
+++ b/packages/tui/src/component/dialog-move-session.tsx
@@ -2,8 +2,8 @@ import { useTerminalDimensions } from "@opentui/solid"
 import { TextAttributes } from "@opentui/core"
 import { createMemo, createResource, createSignal, onMount, Show } from "solid-js"
 import path from "path"
-import { DialogSelect, type DialogSelectOption } from "../ui/dialog-select"
-import { useDialog } from "../ui/dialog"
+import { DialogSelect, dialogSelectContentWidth, type DialogSelectOption } from "../ui/dialog-select"
+import { dialogWidth, useDialog } from "../ui/dialog"
 import { useClient } from "../context/client"
 import { Keymap } from "../context/keymap"
 import { useTheme } from "../context/theme"
@@ -159,7 +159,10 @@ export function DialogMoveSession(props: DialogMoveSessionProps) {
       if (b.location === b.root.directory) return 1
       return a.location.localeCompare(b.location)
     })
-    const titleWidth = Math.max(1, Math.min(116, dimensions().width - 2) - 12)
+    const titleWidth = Math.max(
+      1,
+      dialogSelectContentWidth(Math.min(dialogWidth("xlarge"), dimensions().width - 2)),
+    )
 
     return list.map((item) => {
       const title = abbreviateHome(item.location, paths.home)
diff --git a/packages/tui/src/component/dialog-open.tsx b/packages/tui/src/component/dialog-open.tsx
index d1c7603a7e..a1a6a1aa2d 100644
--- a/packages/tui/src/component/dialog-open.tsx
+++ b/packages/tui/src/component/dialog-open.tsx
@@ -2,8 +2,8 @@ import path from "path"
 import { createMemo, createResource, createSignal, onMount } from "solid-js"
 import type { SessionInfo } from "@opencode-ai/client"
 import { useTerminalDimensions } from "@opentui/solid"
-import { useDialog } from "../ui/dialog"
-import { DialogSelect } from "../ui/dialog-select"
+import { dialogWidth, useDialog } from "../ui/dialog"
+import { DialogSelect, dialogSelectContentWidth } from "../ui/dialog-select"
 import { useRoute } from "../context/route"
 import { useData } from "../context/data"
 import { useClient } from "../context/client"
@@ -105,8 +105,8 @@ export function DialogOpen() {
       .map((project) => {
         const title = project.name ?? path.basename(project.canonical)
         const footer = abbreviateHome(project.canonical, paths.home)
-        // Dialog padding, the gutter column, title padding, and the separating space use nine columns.
-        const width = Math.min(60, dimensions().width - 2) - 9 - stringWidth(title)
+        const width =
+          dialogSelectContentWidth(Math.min(dialogWidth("large"), dimensions().width - 2)) - stringWidth(title)
         return {
           title,
           footer: truncateFilePath(footer, width),
diff --git a/packages/tui/src/ui/dialog-select.tsx b/packages/tui/src/ui/dialog-select.tsx
index e3733fdece..969b3f7569 100644
--- a/packages/tui/src/ui/dialog-select.tsx
+++ b/packages/tui/src/ui/dialog-select.tsx
@@ -83,6 +83,11 @@ export interface DialogSelectOption<T = any> {
   onSelect?: (ctx: DialogContext) => void
 }
 
+export function dialogSelectContentWidth(dialogWidth: number) {
+  // Scroll padding, row padding, the gutter, title padding, and the separating gap.
+  return dialogWidth - 12
+}
+
 export type DialogSelectRef<T> = {
   filter: string
   filtered: DialogSelectOption<T>[]
diff --git a/packages/tui/src/ui/dialog.tsx b/packages/tui/src/ui/dialog.tsx
index 0c55bbae5b..6a89f79a17 100644
--- a/packages/tui/src/ui/dialog.tsx
+++ b/packages/tui/src/ui/dialog.tsx
@@ -8,9 +8,17 @@ import { useToast } from "./toast"
 import { useClipboard } from "../context/clipboard"
 import { useConfig } from "../config"
 
+export type DialogSize = "medium" | "large" | "xlarge"
+
+export function dialogWidth(size: DialogSize) {
+  if (size === "xlarge") return 116
+  if (size === "large") return 88
+  return 60
+}
+
 export function Dialog(
   props: ParentProps<{
-    size?: "medium" | "large" | "xlarge"
+    size?: DialogSize
     centered?: boolean
     onClose: () => void
   }>,
@@ -20,12 +28,6 @@ export function Dialog(
   const renderer = useRenderer()
 
   let dismiss = false
-  const width = () => {
-    if (props.size === "xlarge") return 116
-    if (props.size === "large") return 88
-    return 60
-  }
-
   return (
     <box
       onMouseDown={() => {
@@ -57,7 +59,7 @@ export function Dialog(
           dismiss = false
           e.stopPropagation()
         }}
-        width={width()}
+        width={dialogWidth(props.size ?? "medium")}
         maxWidth={dimensions().width - 2}
         backgroundColor={theme.background.default}
         paddingTop={1}
@@ -74,7 +76,7 @@ function init() {
       element: JSX.Element
       onClose?: () => void
     }[],
-    size: "medium" as "medium" | "large" | "xlarge",
+    size: "medium" as DialogSize,
     centered: false,
   })
 
diff --git a/packages/tui/test/cli/tui/dialog-select.test.tsx b/packages/tui/test/cli/tui/dialog-select.test.tsx
index 228119875b..434f4d5dc6 100644
--- a/packages/tui/test/cli/tui/dialog-select.test.tsx
+++ b/packages/tui/test/cli/tui/dialog-select.test.tsx
@@ -5,7 +5,10 @@ import { expect, test } from "bun:test"
 import { mkdir } from "node:fs/promises"
 import path from "node:path"
 import { createSignal, onCleanup, onMount } from "solid-js"
-import type { DialogSelectOption } from "../../../src/ui/dialog-select"
+import { dialogWidth } from "../../../src/ui/dialog"
+import { dialogSelectContentWidth, type DialogSelectOption } from "../../../src/ui/dialog-select"
+import { truncateFilePath } from "../../../src/ui/file-path"
+import { stringWidth } from "../../../src/util/string-width"
 import { tmpdir } from "../../fixture/fixture"
 import { TestTuiContexts } from "../../fixture/tui-environment"
 import { createTuiResolvedConfig } from "../../fixture/tui-runtime"
@@ -147,6 +150,28 @@ async function mountSelect(root: string, initial: DialogSelectOption<string>[],
   return { app, moved, replaceOptions, selected }
 }
 
+test("budgets option content for constrained and full-width large dialogs", () => {
+  expect(dialogSelectContentWidth(Math.min(dialogWidth("large"), 62 - 2)) - 7).toBe(41)
+  expect(dialogSelectContentWidth(Math.min(dialogWidth("large"), 100 - 2)) - 7).toBe(69)
+})
+
+test("renders the complete truncated footer within the option row", async () => {
+  await using tmp = await tmpdir()
+  const title = "Project"
+  const footer = truncateFilePath(
+    "/tmp/opencode/projects/a-very-long-project-directory/distinctive-tail.tsx",
+    dialogSelectContentWidth(dialogWidth("medium")) - stringWidth(title),
+  )
+  const select = await mountSelect(tmp.path, [{ title, footer, value: "project" }])
+
+  try {
+    await select.app.waitForFrame((frame) => frame.includes(footer))
+    expect(select.app.captureCharFrame()).toContain(footer)
+  } finally {
+    select.app.renderer.destroy()
+  }
+})
+
 test("renders actions with a current selection", async () => {
   await using tmp = await tmpdir()
   const app = await renderSelect(