From 16255dd8b6b8fea3fa8f4f59ee1619b2996294da Mon Sep 17 00:00:00 2001
From: Kit Langton <7587245+kitlangton@users.noreply.github.com>
Date: Sun, 12 Jul 2026 23:12:41 +0000
Subject: [PATCH] feat(tui): add agent picker preview

---
 packages/tui/src/component/dialog-agent.tsx | 48 ++++++++++++++++++++-
 packages/tui/src/ui/dialog-select.tsx       | 46 ++++++++++++++++----
 2 files changed, 83 insertions(+), 11 deletions(-)

diff --git a/packages/tui/src/component/dialog-agent.tsx b/packages/tui/src/component/dialog-agent.tsx
index f586cb0780..59968bc606 100644
--- a/packages/tui/src/component/dialog-agent.tsx
+++ b/packages/tui/src/component/dialog-agent.tsx
@@ -1,27 +1,71 @@
 import { createMemo } from "solid-js"
 import { useLocal } from "../context/local"
-import { DialogSelect } from "../ui/dialog-select"
+import { DialogSelect, type DialogSelectOption } from "../ui/dialog-select"
 import { useDialog } from "../ui/dialog"
+import { useTheme } from "../context/theme"
+import { TextAttributes } from "@opentui/core"
+import { DialogModel } from "./dialog-model"
 
 export function DialogAgent() {
   const local = useLocal()
   const dialog = useDialog()
+  const { theme } = useTheme()
+
+  dialog.setSize("xlarge")
 
   const options = createMemo(() =>
     local.agent.list().map((item) => {
       return {
         value: item.id,
         title: item.id,
-        description: item.description,
+        description: undefined,
       }
     }),
   )
 
+  function Preview(props: { option: DialogSelectOption<string> | undefined }) {
+    const agent = createMemo(() => local.agent.list().find((item) => item.id === props.option?.value))
+    const model = createMemo(() => {
+      const value = agent()?.model
+      if (value) return `${value.providerID}/${value.id}`
+      return "Uses the current session model"
+    })
+
+    return (
+      <box gap={1}>
+        <text fg={theme.text} attributes={TextAttributes.BOLD}>
+          {agent()?.id}
+        </text>
+        <box>
+          <text fg={theme.textMuted}>DESCRIPTION</text>
+          <text fg={theme.text} wrapMode="word">
+            {agent()?.description ?? "No description provided."}
+          </text>
+        </box>
+        <box>
+          <text fg={theme.textMuted}>MODEL</text>
+          <text fg={agent()?.model ? theme.text : theme.textMuted}>{model()}</text>
+        </box>
+      </box>
+    )
+  }
+
   return (
     <DialogSelect
       title="Select agent"
       current={local.agent.current()?.id}
       options={options()}
+      preview={(option) => <Preview option={option} />}
+      actions={[
+        {
+          command: "model.list",
+          title: "Choose model",
+          onTrigger(option) {
+            local.agent.set(option.value)
+            dialog.replace(() => <DialogModel />)
+          },
+        },
+      ]}
       onSelect={(option) => {
         local.agent.set(option.value)
         dialog.clear()
diff --git a/packages/tui/src/ui/dialog-select.tsx b/packages/tui/src/ui/dialog-select.tsx
index ef13bc1d50..7ae5a2811a 100644
--- a/packages/tui/src/ui/dialog-select.tsx
+++ b/packages/tui/src/ui/dialog-select.tsx
@@ -49,6 +49,7 @@ export interface DialogSelectProps<T> {
     label: string
     side?: "left" | "right"
   }[]
+  preview?: (option: DialogSelectOption<T> | undefined) => JSX.Element
   bindings?: readonly Binding<Renderable, KeyEvent>[]
   current?: T
 }
@@ -557,17 +558,37 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
   }
 
   return (
-    <box gap={1} paddingBottom={1} flexGrow={1}>
-      <box paddingLeft={4} paddingRight={4}>
+    <box gap={1} paddingBottom={1} flexGrow={1} minHeight={props.preview ? 18 : undefined} position="relative">
+      <Show when={props.preview}>
+        <box
+          position="absolute"
+          top={-1}
+          bottom={0}
+          right={0}
+          width="58%"
+          paddingLeft={4}
+          paddingRight={4}
+          backgroundColor={theme.backgroundElement}
+          zIndex={2}
+        >
+          <text position="absolute" right={4} fg={theme.textMuted} onMouseUp={() => dialog.clear()}>
+            esc
+          </text>
+          {props.preview?.(selected())}
+        </box>
+      </Show>
+      <box paddingLeft={4} paddingRight={props.preview ? 2 : 4} width={props.preview ? "42%" : "100%"}>
         <box flexDirection="row" justifyContent="space-between">
           {props.titleView ?? (
             <text fg={theme.text} attributes={TextAttributes.BOLD}>
               {props.title}
             </text>
           )}
-          <text fg={theme.textMuted} onMouseUp={() => dialog.clear()}>
-            esc
-          </text>
+          <Show when={!props.preview}>
+            <text fg={theme.textMuted} onMouseUp={() => dialog.clear()}>
+              esc
+            </text>
+          </Show>
         </box>
         <Show when={props.renderFilter !== false}>
           <box paddingTop={1}>
@@ -597,7 +618,7 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
           </box>
         </Show>
       </box>
-      <box flexGrow={1} flexShrink={1}>
+      <box flexGrow={1} flexShrink={1} width={props.preview ? "42%" : "100%"}>
         <Show
           when={grouped().length > 0}
           fallback={
@@ -609,8 +630,8 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
           }
         >
           <scrollbox
-            paddingLeft={1}
-            paddingRight={1}
+            paddingLeft={props.preview ? 3 : 1}
+            paddingRight={props.preview ? 3 : 1}
             scrollbarOptions={{ visible: false }}
             scrollAcceleration={scrollAcceleration()}
             ref={(r: ScrollBoxRenderable) => (scroll = r)}
@@ -721,7 +742,14 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
         </Show>
       </box>
       <Show when={props.footer || visibleActions().length} fallback={<box flexShrink={0} />}>
-        <box paddingRight={2} paddingLeft={4} flexDirection="row" justifyContent="space-between" flexShrink={0}>
+        <box
+          paddingRight={2}
+          paddingLeft={4}
+          width={props.preview ? "42%" : "100%"}
+          flexDirection="row"
+          justifyContent="space-between"
+          flexShrink={0}
+        >
           <box flexDirection="row" gap={2}>
             {props.footer}
             <For each={left()}>{(item) => <FooterAction item={item} />}</For>