diff --git a/mobile/src/layout/host-sidebar-reveal.test.tsx b/mobile/src/layout/host-sidebar-reveal.test.tsx
index 6605de9f7b1..d33a936fa29 100644
--- a/mobile/src/layout/host-sidebar-reveal.test.tsx
+++ b/mobile/src/layout/host-sidebar-reveal.test.tsx
@@ -1,5 +1,6 @@
 import { createElement, type ReactNode } from 'react'
 import { act, create, type ReactTestRenderer } from 'react-test-renderer'
+import { Pressable } from 'react-native'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { createFakeBridgePortPair } from '../mobile-web-shell/bridge/bridge-port-pair-test-harness'
 import { RpcClientProvider } from '../transport/client-context.web'
@@ -124,7 +125,9 @@ describe('host sidebar reveal in the session header', () => {
   }
 
   function buttons(label: string) {
-    return tree().root.findAllByProps({ accessibilityLabel: label })
+    return tree().root.findAll(
+      (node) => node.type === Pressable && node.props.accessibilityLabel === label
+    )
   }
 
   it('offers no reveal in a page beside the native sidebar, which it does not draw', async () => {
diff --git a/mobile/src/session/MobileSessionHeader.tsx b/mobile/src/session/MobileSessionHeader.tsx
index 8aff620e24c..12fd1c88f40 100644
--- a/mobile/src/session/MobileSessionHeader.tsx
+++ b/mobile/src/session/MobileSessionHeader.tsx
@@ -4,7 +4,6 @@ import { ChevronLeft, Folder, GitBranch, MoreHorizontal, PanelLeftOpen } from 'l
 import { MobileSessionHeaderIconButton } from './MobileSessionHeaderIconButton'
 import { MobileSessionTabStrip } from './MobileSessionTabStrip'
 import { StatusDot } from '../components/StatusDot'
-import { colors } from '../theme/mobile-theme'
 import { styles } from './mobile-session-styles'
 import { useHostSidebarReveal } from '../layout/host-sidebar-reveal'
 import { useResponsiveLayout } from '../layout/responsive-layout'
@@ -38,25 +37,17 @@ export function MobileSessionHeader({ controller }: { controller: MobileSessionC
     <SafeAreaView style={styles.sessionChrome} edges={['top']}>
       <View style={styles.sessionTopBar}>
         {revealSidebar ? (
-          <Pressable
-            style={({ pressed }) => [styles.backButton, pressed && styles.backButtonPressed]}
-            onPress={revealSidebar}
-            hitSlop={8}
-            accessibilityRole="button"
+          <MobileSessionHeaderIconButton
             accessibilityLabel="Show sidebar"
-          >
-            <PanelLeftOpen size={18} color={colors.textSecondary} />
-          </Pressable>
+            icon={PanelLeftOpen}
+            onPress={revealSidebar}
+          />
         ) : null}
-        <Pressable
-          style={({ pressed }) => [styles.backButton, pressed && styles.backButtonPressed]}
-          onPress={requestLeaveSession}
-          hitSlop={8}
-          accessibilityRole="button"
+        <MobileSessionHeaderIconButton
           accessibilityLabel="Back to worktrees"
-        >
-          <ChevronLeft size={22} color={colors.textSecondary} strokeWidth={2.2} />
-        </Pressable>
+          icon={ChevronLeft}
+          onPress={requestLeaveSession}
+        />
 
         <View
           style={[styles.sessionTitleBlock, tabsInTopBar && styles.sessionTitleBlockBesideTabs]}
diff --git a/mobile/src/session/MobileSessionHeaderIconButton.tsx b/mobile/src/session/MobileSessionHeaderIconButton.tsx
index b1037bb958f..b8ecd649ac6 100644
--- a/mobile/src/session/MobileSessionHeaderIconButton.tsx
+++ b/mobile/src/session/MobileSessionHeaderIconButton.tsx
@@ -11,13 +11,16 @@ type HeaderIconProps = {
 
 type MobileSessionHeaderIconButtonProps = {
   active?: boolean
+  disabled?: boolean
   accessibilityLabel: string
   icon: ComponentType<HeaderIconProps>
   onPress: () => void
 }
 
+// Why: every header and tab-strip button shares this one look and a 44pt touch area (36pt + 4pt slop each side).
 export function MobileSessionHeaderIconButton({
   active = false,
+  disabled = false,
   accessibilityLabel,
   icon: Icon,
   onPress
@@ -25,12 +28,15 @@ export function MobileSessionHeaderIconButton({
   return (
     <Pressable
       style={({ pressed }) => [
-        styles.filesButton,
-        pressed && styles.filesButtonPressed,
-        active && styles.filesButtonActive
+        styles.headerButton,
+        pressed && styles.headerButtonPressed,
+        active && styles.headerButtonActive,
+        disabled && styles.headerButtonDisabled
       ]}
+      disabled={disabled}
       onPress={onPress}
-      hitSlop={8}
+      hitSlop={4}
+      accessibilityRole="button"
       accessibilityLabel={accessibilityLabel}
     >
       <Icon size={18} color={colors.textSecondary} strokeWidth={2.1} />
diff --git a/mobile/src/session/MobileSessionTabStrip.tsx b/mobile/src/session/MobileSessionTabStrip.tsx
index e1f0888c7e3..ead6cc64dc6 100644
--- a/mobile/src/session/MobileSessionTabStrip.tsx
+++ b/mobile/src/session/MobileSessionTabStrip.tsx
@@ -1,6 +1,6 @@
 import { useCallback } from 'react'
 import { View, Text, ScrollView, Pressable } from 'react-native'
-import { File, FileText, Globe, Plus } from 'lucide-react-native'
+import { File, FileText, Globe, Plus, SquareTerminal } from 'lucide-react-native'
 import { triggerMediumImpact } from '../platform/haptics'
 import { MobileAgentIcon } from '../components/MobileAgentIcon'
 import {
@@ -8,6 +8,7 @@ import {
   resolveMobileTerminalTabAgentId
 } from './mobile-terminal-tab-agent'
 import { colors } from '../theme/mobile-theme'
+import { MobileSessionHeaderIconButton } from './MobileSessionHeaderIconButton'
 import { QuickCommandsTabButton } from './QuickCommandsTabButton'
 import { styles } from './mobile-session-styles'
 import { useKeyboardPersistingTaps } from '../platform/keyboard-persisting-taps'
@@ -100,6 +101,9 @@ export function MobileSessionTabStrip({
               }
             }}
             onPress={() => switchSessionTab(t)}
+            accessibilityRole="tab"
+            accessibilityLabel={getMobileSessionTabTitle(t)}
+            accessibilityState={{ selected: t.id === activeSessionTabId }}
             onLongPress={() => {
               triggerMediumImpact()
               openSessionTabActionSheetAfterKeyboardDismiss(t)
@@ -120,7 +124,11 @@ export function MobileSessionTabStrip({
               {t.type === 'terminal' &&
                 (() => {
                   const agentId = resolveMobileTerminalTabAgentId(t)
-                  return agentId ? <MobileAgentIcon agentId={agentId} size={13} /> : null
+                  return agentId ? (
+                    <MobileAgentIcon agentId={agentId} size={13} />
+                  ) : (
+                    <SquareTerminal size={13} color={colors.textSecondary} strokeWidth={2.1} />
+                  )
                 })()}
               <Text
                 style={[styles.tabText, t.id === activeSessionTabId && styles.tabTextActive]}
@@ -133,22 +141,15 @@ export function MobileSessionTabStrip({
         ))}
       </ScrollView>
       {/* Why: pinned outside the scroll strip so the new-agent button stays reachable however far the tabs scroll. */}
-      <Pressable
-        style={({ pressed }) => [
-          styles.newTerminalButton,
-          pressed && styles.newTerminalButtonPressed,
-          (creating || creatingBrowser || creatingMarkdown || connState !== 'connected') &&
-            styles.newTerminalButtonDisabled
-        ]}
+      <MobileSessionHeaderIconButton
         disabled={creating || creatingBrowser || creatingMarkdown || connState !== 'connected'}
         onPress={() => {
           setCreateError('')
           setShowCreateTabDrawer(true)
         }}
         accessibilityLabel="New tab"
-      >
-        <Plus size={16} color={colors.textSecondary} strokeWidth={2.2} />
-      </Pressable>
+        icon={Plus}
+      />
       {/* Why: stable placement matters, while old hosts must stay gated because they strip agentPrompt. */}
       <QuickCommandsTabButton
         disabled={creating || creatingBrowser || creatingMarkdown || connState !== 'connected'}
diff --git a/mobile/src/session/QuickCommandsTabButton.tsx b/mobile/src/session/QuickCommandsTabButton.tsx
index 364a35daf75..2b712634057 100644
--- a/mobile/src/session/QuickCommandsTabButton.tsx
+++ b/mobile/src/session/QuickCommandsTabButton.tsx
@@ -1,7 +1,7 @@
-import { Pressable, View } from 'react-native'
+import { View } from 'react-native'
 import { SquareChevronRight } from 'lucide-react-native'
 
-import { colors } from '../theme/mobile-theme'
+import { MobileSessionHeaderIconButton } from './MobileSessionHeaderIconButton'
 import { styles } from './mobile-session-styles'
 
 type Props = {
@@ -13,18 +13,12 @@ export function QuickCommandsTabButton({ disabled, onPress }: Props) {
   return (
     <>
       <View style={styles.tabActionDivider} />
-      <Pressable
-        style={({ pressed }) => [
-          styles.newTerminalButton,
-          pressed && styles.newTerminalButtonPressed,
-          disabled && styles.newTerminalButtonDisabled
-        ]}
+      <MobileSessionHeaderIconButton
         disabled={disabled}
         onPress={onPress}
         accessibilityLabel="Quick commands"
-      >
-        <SquareChevronRight size={16} color={colors.textSecondary} strokeWidth={2.2} />
-      </Pressable>
+        icon={SquareChevronRight}
+      />
     </>
   )
 }
diff --git a/mobile/src/session/mobile-session-frame-styles.ts b/mobile/src/session/mobile-session-frame-styles.ts
index f037a537ea9..7301c09b2eb 100644
--- a/mobile/src/session/mobile-session-frame-styles.ts
+++ b/mobile/src/session/mobile-session-frame-styles.ts
@@ -32,32 +32,25 @@ export const mobileSessionFrameStyles = StyleSheet.create({
     paddingHorizontal: spacing.sm,
     paddingVertical: spacing.xs
   },
-  backButton: {
-    width: 36,
-    height: 36,
-    borderRadius: 18,
-    alignItems: 'center',
-    justifyContent: 'center',
-    marginRight: spacing.xs
-  },
-  backButtonPressed: {
-    backgroundColor: colors.bgRaised
-  },
-  filesButton: {
+  // Each 36pt visual reserves 4pt per side for its 44pt touch area.
+  headerButton: {
     width: 36,
     height: 36,
     borderRadius: radii.button,
     alignItems: 'center',
     justifyContent: 'center',
-    marginLeft: spacing.xs
+    marginHorizontal: spacing.xs
   },
-  filesButtonPressed: {
+  headerButtonPressed: {
     backgroundColor: colors.bgRaised
   },
   // Selected state for the active docked-panel icon on wide layouts (R2).
-  filesButtonActive: {
+  headerButtonActive: {
     backgroundColor: colors.bgRaised
   },
+  headerButtonDisabled: {
+    opacity: 0.45
+  },
   sessionTitleBlock: {
     flex: 1,
     minWidth: 0
@@ -106,7 +99,7 @@ export const mobileSessionFrameStyles = StyleSheet.create({
   },
   tabScroll: {
     flex: 1,
-    maxHeight: 36
+    maxHeight: 44
   },
   tabScrollInTopBar: {
     alignSelf: 'stretch',
@@ -119,10 +112,11 @@ export const mobileSessionFrameStyles = StyleSheet.create({
   tabContentInTopBar: {
     paddingLeft: 0
   },
+  // Sized to the title (capped), so short titles don't waste width.
   tab: {
-    width: 128,
+    minWidth: 44,
     maxWidth: 128,
-    minHeight: 36,
+    minHeight: 44,
     alignItems: 'center',
     justifyContent: 'center',
     paddingHorizontal: spacing.sm,
@@ -157,20 +151,9 @@ export const mobileSessionFrameStyles = StyleSheet.create({
   tabTextActive: {
     color: colors.textPrimary
   },
-  newTerminalButton: {
-    width: 40,
-    height: 36,
-    alignItems: 'center',
-    justifyContent: 'center',
-    borderBottomWidth: 2,
-    borderBottomColor: 'transparent'
-  },
   newTerminalButtonPressed: {
     backgroundColor: colors.bgRaised
   },
-  newTerminalButtonDisabled: {
-    opacity: 0.45
-  },
   // Divider between the + new-terminal button and the Quick Commands launcher,
   // matching the tab strip's borderSubtle separators.
   tabActionDivider: {