diff --git a/ui-tui/src/__tests__/theme.test.ts b/ui-tui/src/__tests__/theme.test.ts
index 86a9768b0..4fe165c8d 100644
--- a/ui-tui/src/__tests__/theme.test.ts
+++ b/ui-tui/src/__tests__/theme.test.ts
@@ -1,6 +1,6 @@
 import { describe, expect, it } from 'vitest'
 
-import { DEFAULT_THEME, fromSkin } from '../theme.js'
+import { DARK_THEME, DEFAULT_THEME, fromSkin, LIGHT_THEME } from '../theme.js'
 
 describe('DEFAULT_THEME', () => {
   it('has brand defaults', () => {
@@ -15,6 +15,26 @@ describe('DEFAULT_THEME', () => {
   })
 })
 
+describe('LIGHT_THEME', () => {
+  it('avoids bright-yellow accents unreadable on white backgrounds (#11300)', () => {
+    expect(LIGHT_THEME.color.gold).not.toBe('#FFD700')
+    expect(LIGHT_THEME.color.amber).not.toBe('#FFBF00')
+    expect(LIGHT_THEME.color.dim).not.toBe('#B8860B')
+    expect(LIGHT_THEME.color.statusWarn).not.toBe('#FFD700')
+  })
+
+  it('keeps the same shape as DARK_THEME', () => {
+    expect(Object.keys(LIGHT_THEME.color).sort()).toEqual(Object.keys(DARK_THEME.color).sort())
+    expect(LIGHT_THEME.brand).toEqual(DARK_THEME.brand)
+  })
+})
+
+describe('DEFAULT_THEME aliasing', () => {
+  it('defaults to DARK_THEME when HERMES_TUI_LIGHT is unset', () => {
+    expect(DEFAULT_THEME).toBe(DARK_THEME)
+  })
+})
+
 describe('fromSkin', () => {
   it('overrides banner colors', () => {
     expect(fromSkin({ banner_title: '#FF0000' }, {}).color.gold).toBe('#FF0000')
diff --git a/ui-tui/src/app/interfaces.ts b/ui-tui/src/app/interfaces.ts
index a23b20688..353c56535 100644
--- a/ui-tui/src/app/interfaces.ts
+++ b/ui-tui/src/app/interfaces.ts
@@ -10,6 +10,7 @@ import type {
   ActivityItem,
   ApprovalReq,
   ClarifyReq,
+  ConfirmReq,
   DetailsMode,
   Msg,
   PanelSection,
@@ -53,6 +54,7 @@ export interface GatewayProviderProps {
 export interface OverlayState {
   approval: ApprovalReq | null
   clarify: ClarifyReq | null
+  confirm: ConfirmReq | null
   modelPicker: boolean
   pager: null | PagerState
   picker: boolean
diff --git a/ui-tui/src/app/overlayStore.ts b/ui-tui/src/app/overlayStore.ts
index a2ea40023..06dbd27a7 100644
--- a/ui-tui/src/app/overlayStore.ts
+++ b/ui-tui/src/app/overlayStore.ts
@@ -5,6 +5,7 @@ import type { OverlayState } from './interfaces.js'
 const buildOverlayState = (): OverlayState => ({
   approval: null,
   clarify: null,
+  confirm: null,
   modelPicker: false,
   pager: null,
   picker: false,
@@ -17,8 +18,8 @@ export const $overlayState = atom<OverlayState>(buildOverlayState())
 
 export const $isBlocked = computed(
   $overlayState,
-  ({ approval, clarify, modelPicker, pager, picker, secret, skillsHub, sudo }) =>
-    Boolean(approval || clarify || modelPicker || pager || picker || secret || skillsHub || sudo)
+  ({ approval, clarify, confirm, modelPicker, pager, picker, secret, skillsHub, sudo }) =>
+    Boolean(approval || clarify || confirm || modelPicker || pager || picker || secret || skillsHub || sudo)
 )
 
 export const getOverlayState = () => $overlayState.get()
diff --git a/ui-tui/src/app/slash/commands/core.ts b/ui-tui/src/app/slash/commands/core.ts
index dd5a9f58c..0f8916c5c 100644
--- a/ui-tui/src/app/slash/commands/core.ts
+++ b/ui-tui/src/app/slash/commands/core.ts
@@ -1,3 +1,4 @@
+import { NO_CONFIRM_DESTRUCTIVE } from '../../../config/env.js'
 import { dailyFortune, randomFortune } from '../../../content/fortunes.js'
 import { HOTKEYS } from '../../../content/hotkeys.js'
 import { nextDetailsMode, parseDetailsMode } from '../../../domain/details.js'
@@ -82,8 +83,27 @@ export const coreCommands: SlashCommand[] = [
         return
       }
 
-      patchUiState({ status: 'forging session…' })
-      ctx.session.newSession(cmd.startsWith('/new') ? 'new session started' : undefined)
+      const isNew = cmd.startsWith('/new')
+
+      const commit = () => {
+        patchUiState({ status: 'forging session…' })
+        ctx.session.newSession(isNew ? 'new session started' : undefined)
+      }
+
+      if (NO_CONFIRM_DESTRUCTIVE) {
+        return commit()
+      }
+
+      patchOverlayState({
+        confirm: {
+          cancelLabel: 'No, keep going',
+          confirmLabel: isNew ? 'Yes, start a new session' : 'Yes, clear the session',
+          danger: true,
+          detail: 'This ends the current conversation and clears the transcript.',
+          onConfirm: commit,
+          title: isNew ? 'Start a new session?' : 'Clear the current session?'
+        }
+      })
     }
   },
 
diff --git a/ui-tui/src/components/appOverlays.tsx b/ui-tui/src/components/appOverlays.tsx
index 27db09024..844996af3 100644
--- a/ui-tui/src/components/appOverlays.tsx
+++ b/ui-tui/src/components/appOverlays.tsx
@@ -9,7 +9,7 @@ import { $uiState } from '../app/uiStore.js'
 import { FloatBox } from './appChrome.js'
 import { MaskedPrompt } from './maskedPrompt.js'
 import { ModelPicker } from './modelPicker.js'
-import { ApprovalPrompt, ClarifyPrompt } from './prompts.js'
+import { ApprovalPrompt, ClarifyPrompt, ConfirmPrompt } from './prompts.js'
 import { SessionPicker } from './sessionPicker.js'
 import { SkillsHub } from './skillsHub.js'
 
@@ -31,6 +31,23 @@ export function PromptZone({
     )
   }
 
+  if (overlay.confirm) {
+    const req = overlay.confirm
+
+    const onConfirm = () => {
+      patchOverlayState({ confirm: null })
+      req.onConfirm()
+    }
+
+    const onCancel = () => patchOverlayState({ confirm: null })
+
+    return (
+      <Box flexDirection="column" flexShrink={0} paddingX={1} paddingY={1}>
+        <ConfirmPrompt onCancel={onCancel} onConfirm={onConfirm} req={req} t={ui.theme} />
+      </Box>
+    )
+  }
+
   if (overlay.clarify) {
     return (
       <Box flexDirection="column" flexShrink={0} paddingX={1} paddingY={1}>
diff --git a/ui-tui/src/components/modelPicker.tsx b/ui-tui/src/components/modelPicker.tsx
index 1bc95481d..406047bc1 100644
--- a/ui-tui/src/components/modelPicker.tsx
+++ b/ui-tui/src/components/modelPicker.tsx
@@ -181,7 +181,7 @@ export function ModelPicker({ gw, onCancel, onSelect, sessionId, t }: ModelPicke
           const idx = off + i
 
           return (
-            <Text color={providerIdx === idx ? t.color.cornsilk : t.color.dim} key={row}>
+            <Text color={providerIdx === idx ? t.color.cornsilk : t.color.dim} key={providers[idx]?.slug ?? `row-${idx}`}>
               {providerIdx === idx ? '▸ ' : '  '}
               {i + 1}. {row}
             </Text>
@@ -212,7 +212,7 @@ export function ModelPicker({ gw, onCancel, onSelect, sessionId, t }: ModelPicke
         const idx = off + i
 
         return (
-          <Text color={modelIdx === idx ? t.color.cornsilk : t.color.dim} key={row}>
+          <Text color={modelIdx === idx ? t.color.cornsilk : t.color.dim} key={`${provider?.slug ?? 'prov'}:${idx}:${row}`}>
             {modelIdx === idx ? '▸ ' : '  '}
             {i + 1}. {row}
           </Text>
diff --git a/ui-tui/src/components/prompts.tsx b/ui-tui/src/components/prompts.tsx
index c7ced5b31..cd9c3a2d1 100644
--- a/ui-tui/src/components/prompts.tsx
+++ b/ui-tui/src/components/prompts.tsx
@@ -2,7 +2,7 @@ import { Box, Text, useInput } from '@hermes/ink'
 import { useState } from 'react'
 
 import type { Theme } from '../theme.js'
-import type { ApprovalReq, ClarifyReq } from '../types.js'
+import type { ApprovalReq, ClarifyReq, ConfirmReq } from '../types.js'
 
 import { TextInput } from './textInput.js'
 
@@ -151,6 +151,80 @@ export function ClarifyPrompt({ cols = 80, onAnswer, onCancel, req, t }: Clarify
   )
 }
 
+export function ConfirmPrompt({ onCancel, onConfirm, req, t }: ConfirmPromptProps) {
+  const [sel, setSel] = useState(0)
+
+  useInput((ch, key) => {
+    if (key.escape || (key.ctrl && ch.toLowerCase() === 'c')) {
+      onCancel()
+
+      return
+    }
+
+    const lower = ch.toLowerCase()
+
+    if (lower === 'y') {
+      onConfirm()
+
+      return
+    }
+
+    if (lower === 'n') {
+      onCancel()
+
+      return
+    }
+
+    if (key.upArrow && sel > 0) {
+      setSel(0)
+    }
+
+    if (key.downArrow && sel < 1) {
+      setSel(1)
+    }
+
+    if (key.return) {
+      sel === 0 ? onCancel() : onConfirm()
+    }
+  })
+
+  const accent = req.danger ? t.color.error : t.color.warn
+  const confirmLabel = req.confirmLabel ?? 'Yes'
+  const cancelLabel = req.cancelLabel ?? 'No'
+
+  const rows = [
+    { color: t.color.cornsilk, label: cancelLabel },
+    { color: req.danger ? t.color.error : t.color.cornsilk, label: confirmLabel }
+  ]
+
+  return (
+    <Box borderColor={accent} borderStyle="double" flexDirection="column" paddingX={1}>
+      <Text bold color={accent}>
+        {req.danger ? '⚠' : '?'} {req.title}
+      </Text>
+
+      {req.detail ? (
+        <Box paddingLeft={1}>
+          <Text color={t.color.cornsilk} wrap="truncate-end">
+            {req.detail}
+          </Text>
+        </Box>
+      ) : null}
+
+      <Text />
+
+      {rows.map((row, i) => (
+        <Text key={row.label}>
+          <Text color={sel === i ? accent : t.color.dim}>{sel === i ? '▸ ' : '  '}</Text>
+          <Text color={sel === i ? row.color : t.color.dim}>{row.label}</Text>
+        </Text>
+      ))}
+
+      <Text color={t.color.dim}>↑/↓ select · Enter confirm · Y/N quick · Esc cancel</Text>
+    </Box>
+  )
+}
+
 interface ApprovalPromptProps {
   onChoice: (s: string) => void
   req: ApprovalReq
@@ -164,3 +238,10 @@ interface ClarifyPromptProps {
   req: ClarifyReq
   t: Theme
 }
+
+interface ConfirmPromptProps {
+  onCancel: () => void
+  onConfirm: () => void
+  req: ConfirmReq
+  t: Theme
+}
diff --git a/ui-tui/src/config/env.ts b/ui-tui/src/config/env.ts
index 3a476d6bc..999607dac 100644
--- a/ui-tui/src/config/env.ts
+++ b/ui-tui/src/config/env.ts
@@ -1,2 +1,5 @@
 export const STARTUP_RESUME_ID = (process.env.HERMES_TUI_RESUME ?? '').trim()
 export const MOUSE_TRACKING = !/^(?:1|true|yes|on)$/i.test((process.env.HERMES_TUI_DISABLE_MOUSE ?? '').trim())
+export const NO_CONFIRM_DESTRUCTIVE = /^(?:1|true|yes|on)$/i.test(
+  (process.env.HERMES_TUI_NO_CONFIRM ?? '').trim()
+)
diff --git a/ui-tui/src/theme.ts b/ui-tui/src/theme.ts
index 88bc3c390..386e436f5 100644
--- a/ui-tui/src/theme.ts
+++ b/ui-tui/src/theme.ts
@@ -78,7 +78,17 @@ function mix(a: string, b: string, t: number) {
 
 // ── Defaults ─────────────────────────────────────────────────────────
 
-export const DEFAULT_THEME: Theme = {
+const BRAND: ThemeBrand = {
+  name: 'Hermes Agent',
+  icon: '⚕',
+  prompt: '❯',
+  welcome: 'Type your message or /help for commands.',
+  goodbye: 'Goodbye! ⚕',
+  tool: '┊',
+  helpHeader: '(^_^)? Commands'
+}
+
+export const DARK_THEME: Theme = {
   color: {
     gold: '#FFD700',
     amber: '#FFBF00',
@@ -112,20 +122,59 @@ export const DEFAULT_THEME: Theme = {
     shellDollar: '#4dabf7'
   },
 
-  brand: {
-    name: 'Hermes Agent',
-    icon: '⚕',
-    prompt: '❯',
-    welcome: 'Type your message or /help for commands.',
-    goodbye: 'Goodbye! ⚕',
-    tool: '┊',
-    helpHeader: '(^_^)? Commands'
-  },
+  brand: BRAND,
 
   bannerLogo: '',
   bannerHero: ''
 }
 
+// Light-terminal palette: darker golds/ambers that stay legible on white
+// backgrounds. Same shape as DARK_THEME so `fromSkin` still layers on top
+// cleanly (#11300).
+export const LIGHT_THEME: Theme = {
+  color: {
+    gold: '#8B6914',
+    amber: '#A0651C',
+    bronze: '#7A4F1F',
+    cornsilk: '#3D2F13',
+    dim: '#7A5A0F',
+    completionBg: '#F5F5F5',
+    completionCurrentBg: mix('#F5F5F5', '#A0651C', 0.25),
+
+    label: '#7A5A0F',
+    ok: '#2E7D32',
+    error: '#C62828',
+    warn: '#E65100',
+
+    prompt: '#2B2014',
+    sessionLabel: '#7A5A0F',
+    sessionBorder: '#7A5A0F',
+
+    statusBg: '#F5F5F5',
+    statusFg: '#333333',
+    statusGood: '#2E7D32',
+    statusWarn: '#8B6914',
+    statusBad: '#D84315',
+    statusCritical: '#B71C1C',
+    selectionBg: '#D4E4F7',
+
+    diffAdded: 'rgb(200,240,200)',
+    diffRemoved: 'rgb(240,200,200)',
+    diffAddedWord: 'rgb(27,94,32)',
+    diffRemovedWord: 'rgb(183,28,28)',
+    shellDollar: '#1565C0'
+  },
+
+  brand: BRAND,
+
+  bannerLogo: '',
+  bannerHero: ''
+}
+
+const LIGHT_MODE = /^(?:1|true|yes|on)$/i.test((process.env.HERMES_TUI_LIGHT ?? '').trim())
+
+export const DEFAULT_THEME: Theme = LIGHT_MODE ? LIGHT_THEME : DARK_THEME
+
 // ── Skin → Theme ─────────────────────────────────────────────────────
 
 export function fromSkin(
diff --git a/ui-tui/src/types.ts b/ui-tui/src/types.ts
index 98cc31203..3045a74a8 100644
--- a/ui-tui/src/types.ts
+++ b/ui-tui/src/types.ts
@@ -29,6 +29,15 @@ export interface ApprovalReq {
   description: string
 }
 
+export interface ConfirmReq {
+  cancelLabel?: string
+  confirmLabel?: string
+  danger?: boolean
+  detail?: string
+  onConfirm: () => void
+  title: string
+}
+
 export interface ClarifyReq {
   choices: string[] | null
   question: string