chore(tui): remove dead branch cleanup code

- drop unused TUI helpers, test-only layout scaffolding, and stale public debug exports
- remove an unused profiler import and trim test-only coverage for deleted helpers

scripts/profile-tui.py

@@ -30,7 +30,6 @@ import pty
 import select
 import signal
 import sqlite3
-import statistics
 import sys
 import time
 from pathlib import Path

ui-tui/packages/hermes-ink/index.d.ts

@@ -4,7 +4,7 @@ export type { StderrHandle } from './src/hooks/use-stderr.ts'
 export { default as useStdout } from './src/hooks/use-stdout.ts'
 export type { StdoutHandle } from './src/hooks/use-stdout.ts'
 export { Ansi } from './src/ink/Ansi.tsx'
-export { evictInkCaches, inkCacheSizes } from './src/ink/cache-eviction.ts'
+export { evictInkCaches } from './src/ink/cache-eviction.ts'
 export type { EvictLevel, InkCacheSizes } from './src/ink/cache-eviction.ts'
 export { AlternateScreen } from './src/ink/components/AlternateScreen.tsx'
 export { default as Box } from './src/ink/components/Box.tsx'

ui-tui/packages/hermes-ink/src/entry-exports.ts

@@ -1,7 +1,7 @@
 export { default as useStderr } from './hooks/use-stderr.js'
 export { default as useStdout } from './hooks/use-stdout.js'
 export { Ansi } from './ink/Ansi.js'
-export { evictInkCaches, type EvictLevel, type InkCacheSizes, inkCacheSizes } from './ink/cache-eviction.js'
+export { evictInkCaches, type EvictLevel, type InkCacheSizes } from './ink/cache-eviction.js'
 export { AlternateScreen } from './ink/components/AlternateScreen.js'
 export { default as Box } from './ink/components/Box.js'
 export { default as Link } from './ink/components/Link.js'
@@ -22,7 +22,7 @@ export { useTerminalFocus } from './ink/hooks/use-terminal-focus.js'
 export { useTerminalTitle } from './ink/hooks/use-terminal-title.js'
 export { useTerminalViewport } from './ink/hooks/use-terminal-viewport.js'
 export { default as measureElement } from './ink/measure-element.js'
-export { resetScrollFastPathStats, scrollFastPathStats, type ScrollFastPathStats } from './ink/render-node-to-output.js'
+export { scrollFastPathStats, type ScrollFastPathStats } from './ink/render-node-to-output.js'
 export { createRoot, default as render, renderSync } from './ink/root.js'
 export { stringWidth } from './ink/stringWidth.js'
 export { isXtermJs } from './ink/terminal.js'

ui-tui/packages/hermes-ink/src/ink/cache-eviction.ts

@@ -22,7 +22,7 @@ export interface InkCacheSizes {
   wrap: number
 }
 
-export function inkCacheSizes(): InkCacheSizes {
+function inkCacheSizes(): InkCacheSizes {
   return {
     lineWidth: lineWidthCacheSize(),
     slice: sliceCacheSize(),

ui-tui/packages/hermes-ink/src/ink/render-node-to-output.ts

@@ -98,19 +98,6 @@ export const scrollFastPathStats: ScrollFastPathStats = {
   }
 }
 
-export function resetScrollFastPathStats(): void {
-  scrollFastPathStats.captured = 0
-  scrollFastPathStats.taken = 0
-  scrollFastPathStats.declined.noPrevScreen = 0
-  scrollFastPathStats.declined.heightDeltaMismatch = 0
-  scrollFastPathStats.declined.other = 0
-  scrollFastPathStats.lastDeclineReason = undefined
-  scrollFastPathStats.lastHeightDelta = undefined
-  scrollFastPathStats.lastHintDelta = undefined
-  scrollFastPathStats.lastScrollHeight = undefined
-  scrollFastPathStats.lastPrevHeight = undefined
-}
-
 export function getScrollHint(): ScrollHint | null {
   return scrollHint
 }

ui-tui/src/__tests__/turnStore.test.ts

@@ -1,7 +1,6 @@
 import { beforeEach, describe, expect, it } from 'vitest'
 
 import {
-  appendTurnSegment,
   archiveDoneTodos,
   archiveTodosAtTurnEnd,
   getTurnState,
@@ -64,13 +63,4 @@ describe('turnStore live progress helpers', () => {
     toggleTodoCollapsed()
     expect(getTurnState().todoCollapsed).toBe(false)
   })
-
-  it('merges adjacent live tool shelves before rendering', () => {
-    appendTurnSegment({ kind: 'trail', role: 'system', text: '', tools: ['one ✓'] })
-    appendTurnSegment({ kind: 'trail', role: 'system', text: '', tools: ['two ✓'] })
-
-    expect(getTurnState().streamSegments).toEqual([
-      { kind: 'trail', role: 'system', text: '', tools: ['one ✓', 'two ✓'] }
-    ])
-  })
 })

ui-tui/src/app/slash/commands/ops.ts

@@ -220,7 +220,7 @@ export const opsCommands: SlashCommand[] = [
       const [sub, ...rest] = text.split(/\s+/)
       const query = rest.join(' ').trim()
       const { rpc } = ctx.gateway
-      const { page, panel, sys } = ctx.transcript
+      const { panel, sys } = ctx.transcript
 
       if (sub === 'list') {
         rpc<SkillsListResponse>('skills.manage', { action: 'list' })

ui-tui/src/app/turnStore.ts

@@ -1,7 +1,7 @@
 import { atom } from 'nanostores'
 import { useSyncExternalStore } from 'react'
 
-import { appendToolShelfMessage, isTodoDone } from '../lib/liveProgress.js'
+import { isTodoDone } from '../lib/liveProgress.js'
 import type { ActiveTool, ActivityItem, Msg, SubagentProgress, TodoItem } from '../types.js'
 
 const buildTurnState = (): TurnState => ({
@@ -64,9 +64,6 @@ export const archiveTodosAtTurnEnd = () => {
   return [msg]
 }
 
-export const appendTurnSegment = (msg: Msg) =>
-  patchTurnState(state => ({ ...state, streamSegments: appendToolShelfMessage(state.streamSegments, msg) }))
-
 export const resetTurnState = () => $turnState.set(buildTurnState())
 
 export interface TurnState {

ui-tui/src/app/useMainApp.ts

@@ -442,7 +442,7 @@ export function useMainApp(gw: GatewayClient) {
 
   clipboardPasteRef.current = paste
 
-  const { dispatchSubmission, send, sendQueued, shellExec, submit } = useSubmission({
+  const { dispatchSubmission, send, sendQueued, submit } = useSubmission({
     appendMessage,
     composerActions,
     composerRefs,

ui-tui/src/app/useSubmission.ts

@@ -331,7 +331,7 @@ export function useSubmission(opts: UseSubmissionOptions) {
 
   submitRef.current = submit
 
-  return { dispatchSubmission, send, sendQueued, shellExec, submit }
+  return { dispatchSubmission, send, sendQueued, submit }
 }
 
 export interface UseSubmissionOptions {

ui-tui/src/components/thinking.tsx

@@ -394,10 +394,6 @@ function SubagentAccordion({
   const hasTools = item.tools.length > 0
   const noteRows = [...(summary ? [summary] : []), ...item.notes]
   const hasNotes = noteRows.length > 0
-  // `showChildren` only seeds the recursive `expanded` prop for nested
-  // subagents — it MUST NOT be OR-ed into the local section toggles, or
-  // expand-all permanently locks the inner chevrons open.
-  const showChildren = expanded || deep
   const noteColor = statusTone === 'error' ? t.color.error : statusTone === 'warn' ? t.color.warn : t.color.dim
 
   const sections: {

ui-tui/src/gatewayTypes.ts

@@ -364,11 +364,6 @@ export interface SpawnTreeLoadResponse {
   subagents?: unknown[]
 }
 
-export interface SpawnTreeSaveResponse {
-  path?: string
-  session_id?: string
-}
-
 export type GatewayEvent =
   | { payload?: { skin?: GatewaySkin }; session_id?: string; type: 'gateway.ready' }
   | { payload?: GatewaySkin; session_id?: string; type: 'skin.changed' }

ui-tui/src/lib/liveLayout.test.ts

@@ -1,9 +0,0 @@
-import { describe, expect, it } from 'vitest'
-
-import { liveTailOrder } from './liveLayout.js'
-
-describe('liveTailOrder', () => {
-  it('anchors live todo after scroll history and assistant output', () => {
-    expect(liveTailOrder()).toEqual(['scroll-history', 'assistant', 'live-todo'])
-  })
-})

ui-tui/src/lib/liveLayout.ts

@@ -1 +0,0 @@
-export const liveTailOrder = () => ['scroll-history', 'assistant', 'live-todo'] as const

ui-tui/src/lib/virtualHeights.ts

@@ -2,7 +2,7 @@ import type { Msg } from '../types.js'
 
 import { boundedHistoryRenderText } from './text.js'
 
-export const hashText = (text: string) => {
+const hashText = (text: string) => {
   let h = 5381
 
   for (let i = 0; i < text.length; i++) {

ui-tui/src/types/hermes-ink.d.ts

@@ -121,7 +121,6 @@ declare module '@hermes/ink' {
     lastPrevHeight?: number
   }
   export const scrollFastPathStats: ScrollFastPathStats
-  export function resetScrollFastPathStats(): void
 
   export type EvictLevel = 'all' | 'half'
   export type InkCacheSizes = {
@@ -131,7 +130,6 @@ declare module '@hermes/ink' {
     readonly wrap: number
   }
   export function evictInkCaches(level?: EvictLevel): InkCacheSizes
-  export function inkCacheSizes(): InkCacheSizes
 
   export function render(node: React.ReactNode, options?: NodeJS.WriteStream | RenderOptions): Instance