From eb318c2b2923f629667f052058c33c2b05f34f80 Mon Sep 17 00:00:00 2001
From: Janghoon Lee <44862514+savagemanage@users.noreply.github.com>
Date: Wed, 28 Oct 2026 08:31:50 +0000
Subject: [PATCH] feat(tui): fold compaction summaries to one line

A compaction summary is bookkeeping, not an answer. Show it as one
muted line (click to open) instead of the whole Objective / Important
Details markdown.
---
 packages/tui/src/i18n/en.ts               |  1 +
 packages/tui/src/i18n/ko.ts               |  1 +
 packages/tui/src/routes/session/index.tsx | 13 ++++++++++++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/packages/tui/src/i18n/en.ts b/packages/tui/src/i18n/en.ts
index 2f283068a4..a236d84839 100644
--- a/packages/tui/src/i18n/en.ts
+++ b/packages/tui/src/i18n/en.ts
@@ -472,6 +472,7 @@ export const dict = {
   "session.thought": "Thought",
   "session.thought.detail": "Thought: {{detail}}",
   "session.compaction": " Compaction ",
+  "session.compaction.summary": "Conversation summary (click to show)",
   "session.todos": "# Todos",
   "session.questions": "# Questions",
   "session.click_to_expand": "Click to expand",
diff --git a/packages/tui/src/i18n/ko.ts b/packages/tui/src/i18n/ko.ts
index d4b8926d0a..460d4710d1 100644
--- a/packages/tui/src/i18n/ko.ts
+++ b/packages/tui/src/i18n/ko.ts
@@ -451,6 +451,7 @@ export const dict: Record<TuiI18nKey, string> = {
   "session.thought": "생각 끝",
   "session.thought.detail": "생각 끝: {{detail}}",
   "session.compaction": " 요약 ",
+  "session.compaction.summary": "대화 요약 (눌러서 보기)",
   "session.todos": "# 할 일",
   "session.questions": "# 질문",
   "session.click_to_expand": "눌러서 펼치기",
diff --git a/packages/tui/src/routes/session/index.tsx b/packages/tui/src/routes/session/index.tsx
index c0be1bebd2..9dee0870dd 100644
--- a/packages/tui/src/routes/session/index.tsx
+++ b/packages/tui/src/routes/session/index.tsx
@@ -1525,9 +1525,20 @@ function AssistantMessage(props: { message: AssistantMessage; parts: Part[]; las
   const childShortcut = useCommandShortcut("session.child.first")
   const backgroundShortcut = useCommandShortcut("session.background")
 
+  // A compaction summary is bookkeeping, not an answer: folded to one line, click to open.
+  const isSummary = createMemo(() => props.message.summary === true)
+  const [summaryOpen, setSummaryOpen] = createSignal(false)
+
   return (
     <>
-      <For each={props.parts}>
+      <Show when={isSummary()}>
+        <box paddingLeft={3} marginTop={1} flexShrink={0} onMouseUp={() => setSummaryOpen((prev) => !prev)}>
+          <text fg={theme.textMuted}>
+            {(summaryOpen() ? "▾ " : "▸ ") + language.t("session.compaction.summary")}
+          </text>
+        </box>
+      </Show>
+      <For each={!isSummary() || summaryOpen() ? props.parts : []}>
         {(part, index) => {
           const component = createMemo(() => PART_MAPPING[part.type as keyof typeof PART_MAPPING])
           return (