diff --git a/packages/app/src/components/dialog-select-file.tsx b/packages/app/src/components/dialog-select-file.tsx
index 5c58725c7..95478443e 100644
--- a/packages/app/src/components/dialog-select-file.tsx
+++ b/packages/app/src/components/dialog-select-file.tsx
@@ -44,7 +44,7 @@ export function DialogSelectFile(props: { mode?: DialogSelectFileMode; onOpenFil
     "session.previous",
     "session.next",
     "terminal.toggle",
-    "fileTree.toggle",
+    "review.toggle",
   ]
   const limit = 5
 
@@ -162,6 +162,7 @@ export function DialogSelectFile(props: { mode?: DialogSelectFileMode; onOpenFil
     const value = file.tab(path)
     tabs().open(value)
     file.load(path)
+    layout.fileTree.open()
     layout.fileTree.setTab("all")
     props.onOpenFile?.(path)
   }
diff --git a/packages/app/src/components/prompt-input.tsx b/packages/app/src/components/prompt-input.tsx
index 84a695f3e..4d227f44b 100644
--- a/packages/app/src/components/prompt-input.tsx
+++ b/packages/app/src/components/prompt-input.tsx
@@ -189,12 +189,13 @@ export const PromptInput: Component<PromptInputProps> = (props) => {
 
     const wantsReview = item.commentOrigin === "review" || (item.commentOrigin !== "file" && commentInReview(item.path))
     if (wantsReview) {
+      layout.fileTree.open()
       layout.fileTree.setTab("changes")
-      if (!layout.fileTree.opened()) tabs().open("review")
       requestAnimationFrame(() => comments.setFocus(focus))
       return
     }
 
+    layout.fileTree.open()
     layout.fileTree.setTab("all")
     const tab = files.tab(item.path)
     tabs().open(tab)
diff --git a/packages/app/src/components/session-context-usage.tsx b/packages/app/src/components/session-context-usage.tsx
index afdb18bb0..1e37d8f6a 100644
--- a/packages/app/src/components/session-context-usage.tsx
+++ b/packages/app/src/components/session-context-usage.tsx
@@ -57,6 +57,7 @@ export function SessionContextUsage(props: SessionContextUsageProps) {
 
   const openContext = () => {
     if (!params.id) return
+    layout.fileTree.open()
     layout.fileTree.setTab("all")
     tabs().open("context")
     tabs().setActive("context")
diff --git a/packages/app/src/components/session/session-header.tsx b/packages/app/src/components/session/session-header.tsx
index 9fddb4507..d794fb5c6 100644
--- a/packages/app/src/components/session/session-header.tsx
+++ b/packages/app/src/components/session/session-header.tsx
@@ -280,17 +280,14 @@ export function SessionHeader() {
                 </TooltipKeybind>
               </div>
               <div class="hidden md:block shrink-0">
-                <TooltipKeybind
-                  title={language.t("command.fileTree.toggle")}
-                  keybind={command.keybind("fileTree.toggle")}
-                >
+                <TooltipKeybind title={language.t("command.review.toggle")} keybind={command.keybind("review.toggle")}>
                   <Button
                     variant="ghost"
                     class="group/file-tree-toggle size-6 p-0"
                     onClick={() => layout.fileTree.toggle()}
-                    aria-label={language.t("command.fileTree.toggle")}
+                    aria-label={language.t("command.review.toggle")}
                     aria-expanded={layout.fileTree.opened()}
-                    aria-controls="file-tree-panel"
+                    aria-controls="review-panel"
                   >
                     <div class="relative flex items-center justify-center size-4 [&>*]:absolute [&>*]:inset-0">
                       <Icon
diff --git a/packages/app/src/context/layout.tsx b/packages/app/src/context/layout.tsx
index 2ea5f0435..d30fd11cf 100644
--- a/packages/app/src/context/layout.tsx
+++ b/packages/app/src/context/layout.tsx
@@ -624,10 +624,11 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
         const tabs = createMemo(() => store.sessionTabs[key()] ?? { all: [] })
         return {
           tabs,
-          active: createMemo(() => tabs().active),
+          active: createMemo(() => (tabs().active === "review" ? undefined : tabs().active)),
           all: createMemo(() => tabs().all.filter((tab) => tab !== "review")),
           setActive(tab: string | undefined) {
             const session = key()
+            if (tab === "review") return
             if (!store.sessionTabs[session]) {
               setStore("sessionTabs", session, { all: [], active: tab })
             } else {
@@ -644,18 +645,10 @@ export const { use: useLayout, provider: LayoutProvider } = createSimpleContext(
             }
           },
           async open(tab: string) {
+            if (tab === "review") return
             const session = key()
             const current = store.sessionTabs[session] ?? { all: [] }
 
-            if (tab === "review") {
-              if (!store.sessionTabs[session]) {
-                setStore("sessionTabs", session, { all: current.all, active: tab })
-                return
-              }
-              setStore("sessionTabs", session, "active", tab)
-              return
-            }
-
             if (tab === "context") {
               const all = [tab, ...current.all.filter((x) => x !== tab)]
               if (!store.sessionTabs[session]) {
diff --git a/packages/app/src/pages/session.tsx b/packages/app/src/pages/session.tsx
index 7b4f31c50..87ebf6db7 100644
--- a/packages/app/src/pages/session.tsx
+++ b/packages/app/src/pages/session.tsx
@@ -23,7 +23,6 @@ import { IconButton } from "@opencode-ai/ui/icon-button"
 import { Button } from "@opencode-ai/ui/button"
 import { Icon } from "@opencode-ai/ui/icon"
 import { Tooltip, TooltipKeybind } from "@opencode-ai/ui/tooltip"
-import { DiffChanges } from "@opencode-ai/ui/diff-changes"
 import { ResizeHandle } from "@opencode-ai/ui/resize-handle"
 import { Tabs } from "@opencode-ai/ui/tabs"
 import { useCodeComponent } from "@opencode-ai/ui/context/code"
@@ -325,6 +324,7 @@ export default function Page() {
   }
 
   const isDesktop = createMediaQuery("(min-width: 768px)")
+  const centered = createMemo(() => isDesktop() && !layout.fileTree.opened())
 
   function normalizeTab(tab: string) {
     if (!tab.startsWith("file://")) return tab
@@ -730,8 +730,8 @@ export default function Page() {
       onSelect: () => view().terminal.toggle(),
     },
     {
-      id: "fileTree.toggle",
-      title: language.t("command.fileTree.toggle"),
+      id: "review.toggle",
+      title: language.t("command.review.toggle"),
       description: "",
       category: language.t("command.category.view"),
       keybind: "mod+shift+r",
@@ -1097,12 +1097,11 @@ export default function Page() {
     }, 0)
   }
 
-  const reviewTab = createMemo(() => isDesktop() && !layout.fileTree.opened())
   const contextOpen = createMemo(() => tabs().active() === "context" || tabs().all().includes("context"))
   const openedTabs = createMemo(() =>
     tabs()
       .all()
-      .filter((tab) => tab !== "context" && tab !== "review"),
+      .filter((tab) => tab !== "context"),
   )
 
   const mobileChanges = createMemo(() => !isDesktop() && store.mobileTab === "changes")
@@ -1271,56 +1270,29 @@ export default function Page() {
   const activeTab = createMemo(() => {
     const active = tabs().active()
     if (active === "context") return "context"
-    if (active === "review" && reviewTab()) return "review"
     if (active && file.pathFromTab(active)) return normalizeTab(active)
 
     const first = openedTabs()[0]
     if (first) return first
     if (contextOpen()) return "context"
-    if (reviewTab() && hasReview()) return "review"
     return "empty"
   })
 
   createEffect(() => {
     if (!layout.ready()) return
     if (tabs().active()) return
-    if (openedTabs().length === 0 && !contextOpen() && !(reviewTab() && hasReview())) return
+    if (openedTabs().length === 0 && !contextOpen()) return
 
     const next = activeTab()
     if (next === "empty") return
     tabs().setActive(next)
   })
 
-  createEffect(
-    on(
-      () => layout.fileTree.opened(),
-      (opened, prev) => {
-        if (prev === undefined) return
-        if (!isDesktop()) return
-
-        if (opened) {
-          const active = tabs().active()
-          const tab = active === "review" || (!active && hasReview()) ? "changes" : "all"
-          layout.fileTree.setTab(tab)
-          return
-        }
-
-        if (fileTreeTab() !== "changes") return
-        tabs().setActive("review")
-      },
-      { defer: true },
-    ),
-  )
-
   createEffect(() => {
     const id = params.id
     if (!id) return
 
-    const wants = isDesktop()
-      ? layout.fileTree.opened()
-        ? fileTreeTab() === "changes"
-        : activeTab() === "review"
-      : store.mobileTab === "changes"
+    const wants = isDesktop() ? layout.fileTree.opened() && fileTreeTab() === "changes" : store.mobileTab === "changes"
     if (!wants) return
     if (sync.data.session_diff[id] !== undefined) return
     if (sync.status === "loading") return
@@ -1789,10 +1761,11 @@ export default function Page() {
         <div
           classList={{
             "@container relative shrink-0 flex flex-col min-h-0 h-full bg-background-stronger": true,
-            "flex-1 md:flex-none pt-6 md:pt-3": true,
+            "flex-1 pt-6 md:pt-3": true,
+            "md:flex-none": layout.fileTree.opened(),
           }}
           style={{
-            width: isDesktop() ? `${layout.session.width()}px` : "100%",
+            width: isDesktop() && layout.fileTree.opened() ? `${layout.session.width()}px` : "100%",
             "--prompt-height": store.promptHeight ? `${store.promptHeight}px` : undefined,
           }}
         >
@@ -1967,6 +1940,7 @@ export default function Page() {
                               "sticky top-0 z-30 bg-background-stronger": true,
                               "w-full": true,
                               "px-4 md:px-6": true,
+                              "md:max-w-200 md:mx-auto": centered(),
                             }}
                           >
                             <div class="h-10 flex items-center gap-1">
@@ -1991,7 +1965,13 @@ export default function Page() {
                         <div
                           ref={autoScroll.contentRef}
                           role="log"
-                          class="flex flex-col gap-32 items-start justify-start w-full mt-0 pb-[calc(var(--prompt-height,8rem)+64px)] md:pb-[calc(var(--prompt-height,10rem)+64px)] transition-[margin]"
+                          class="flex flex-col gap-32 items-start justify-start pb-[calc(var(--prompt-height,8rem)+64px)] md:pb-[calc(var(--prompt-height,10rem)+64px)] transition-[margin]"
+                          classList={{
+                            "w-full": true,
+                            "md:max-w-200 md:mx-auto": centered(),
+                            "mt-0.5": centered(),
+                            "mt-0": !centered(),
+                          }}
                         >
                           <Show when={store.turnStart > 0}>
                             <div class="w-full flex justify-center">
@@ -2039,7 +2019,10 @@ export default function Page() {
                                 <div
                                   id={anchor(message.id)}
                                   data-message-id={message.id}
-                                  class="min-w-0 w-full max-w-full"
+                                  classList={{
+                                    "min-w-0 w-full max-w-full": true,
+                                    "md:max-w-200": centered(),
+                                  }}
                                 >
                                   <SessionTurn
                                     sessionID={params.id!}
@@ -2092,7 +2075,12 @@ export default function Page() {
             ref={(el) => (promptDock = el)}
             class="absolute inset-x-0 bottom-0 pt-12 pb-4 flex flex-col justify-center items-center z-50 px-4 md:px-0 bg-gradient-to-t from-background-stronger via-background-stronger to-transparent pointer-events-none"
           >
-            <div class="w-full px-4 pointer-events-auto">
+            <div
+              classList={{
+                "w-full px-4 pointer-events-auto": true,
+                "md:max-w-200 md:mx-auto": centered(),
+              }}
+            >
               <Show when={request()} keyed>
                 {(perm) => (
                   <div data-component="tool-part-wrapper" data-permission="true" class="mb-3">
@@ -2163,7 +2151,7 @@ export default function Page() {
             </div>
           </div>
 
-          <Show when={isDesktop()}>
+          <Show when={isDesktop() && layout.fileTree.opened()}>
             <ResizeHandle
               direction="horizontal"
               size={layout.session.width()}
@@ -2175,7 +2163,7 @@ export default function Page() {
         </div>
 
         {/* Desktop side panel - hidden on mobile */}
-        <Show when={isDesktop()}>
+        <Show when={isDesktop() && layout.fileTree.opened()}>
           <aside
             id="review-panel"
             aria-label={language.t("session.panel.reviewAndFiles")}
@@ -2183,7 +2171,7 @@ export default function Page() {
           >
             <div class="flex-1 min-w-0 h-full">
               <Show
-                when={layout.fileTree.opened() && fileTreeTab() === "changes"}
+                when={fileTreeTab() === "changes"}
                 fallback={
                   <DragDropProvider
                     onDragStart={handleDragStart}
@@ -2196,23 +2184,6 @@ export default function Page() {
                     <Tabs value={activeTab()} onChange={openTab}>
                       <div class="sticky top-0 shrink-0 flex">
                         <Tabs.List>
-                          <Show when={reviewTab()}>
-                            <Tabs.Trigger value="review" classes={{ button: "!pl-6" }}>
-                              <div class="flex items-center gap-3">
-                                <Show when={hasReview() && diffsReady()}>
-                                  <DiffChanges changes={diffs()} variant="bars" />
-                                </Show>
-                                <div class="flex items-center gap-1.5">
-                                  <div>{language.t("session.tab.review")}</div>
-                                  <Show when={hasReview()}>
-                                    <div class="text-12-medium text-text-strong h-4 px-2 flex flex-col items-center justify-center rounded-full bg-surface-base">
-                                      {reviewCount()}
-                                    </div>
-                                  </Show>
-                                </div>
-                              </div>
-                            </Tabs.Trigger>
-                          </Show>
                           <Show when={contextOpen()}>
                             <Tabs.Trigger
                               value="context"
@@ -2261,12 +2232,6 @@ export default function Page() {
                         </Tabs.List>
                       </div>
 
-                      <Show when={reviewTab()}>
-                        <Tabs.Content value="review" class="flex flex-col h-full overflow-hidden contain-strict">
-                          <Show when={activeTab() === "review"}>{reviewPanel()}</Show>
-                        </Tabs.Content>
-                      </Show>
-
                       <Tabs.Content value="empty" class="flex flex-col h-full overflow-hidden contain-strict">
                         <Show when={activeTab() === "empty"}>
                           <div class="relative pt-2 flex-1 min-h-0 overflow-hidden">