cmux NEXT composer: the context ring's card has no Compact

webviews/src/agent-session/acpmux/App.tsx

@@ -7620,7 +7620,7 @@ function AcpmuxPane() {
         : undefined,
     [quick, inspectorLocal, remoteControlState],
   );
-  // Compact from Session Info's Context and the composer ring's card sends the agent's own /compact
+  // Compact from Session Info's Context sends the agent's own /compact
   // with the reach a context-full failure's Compact has: only where the agent lists it, never to a
   // View Only chat or a read-only pane, never the next chat during a switch's hold (#17537 had it on
   // the ring; #20454 dropped its wiring).
@@ -11770,7 +11770,6 @@ function AcpmuxPane() {
             chips={ComposerChips}
             permissionAccess={permissionAccess}
             onOpenContext={inspector.reveal ? () => inspector.reveal?.("context") : undefined}
-            onCompact={compactChat}
             draft={draft}
             onUnsentDraft={quick ? undefined : onNewChatDraft}
             onTyping={quick ? undefined : postTyping}

webviews/src/agent-session/acpmux/Composer.tsx

@@ -410,8 +410,6 @@ type Props = {
   authBlocked?: boolean;
   /// Opens the Inspector at its Context section: the context ring's card links to it (Details ›).
   onOpenContext?(): void;
-  /// Sends the agent its `/compact`: the ring's card offers Compact only with it (App.tsx `compactChat`).
-  onCompact?(): void;
 };
 
 /// The prompt box with the agent's `/` command menu:
@@ -487,7 +485,6 @@ export function Composer({
   authBlocked = false,
   placeholder,
   onOpenContext,
-  onCompact,
 }: Props) {
   const t = useT();
   const chrome = useComposerChrome();
@@ -2330,9 +2327,7 @@ export function Composer({
               size={usage?.size}
               setup={usage?.setup}
               breakdown={snapshot.summary?.contextBreakdown}
-              working={snapshot.isWorking}
               onOpenDetails={onOpenContext}
-              onCompact={onCompact}
             />
           )
         }

webviews/src/agent-session/acpmux/ComposerPickers.tsx

@@ -1379,20 +1379,16 @@ export function ContextRing({
   size,
   setup,
   breakdown: reported,
-  onCompact,
   onOpenDetails,
-  working = false,
 }: {
   used?: number;
   size?: number;
   /// Tokens the agent took before the conversation; the card splits it out when known.
   setup?: number;
   /// Claude Code's /context (`summary.contextBreakdown`): its categories replace the bar and parts.
   breakdown?: unknown;
-  onCompact?(): void;
   /// Opens the Inspector at its Context section; the card shows Details › only with it.
   onOpenDetails?(): void;
-  working?: boolean;
 }) {
   const t = useT();
   const hover = useHoverCard(HOVER_INTENT.tooltipDelay);
@@ -1455,7 +1451,7 @@ export function ContextRing({
     document.addEventListener("pointerdown", onPress, true);
     return () => document.removeEventListener("pointerdown", onPress, true);
   }, [closeCard, pinned]);
-  /// The card's buttons the keyboard reaches (Compact, Details ›).
+  /// The card's buttons the keyboard reaches (Details ›).
   const cardButtons = () => [...(card.current?.querySelectorAll<HTMLElement>("button:not(:disabled)") ?? [])];
   /// Leaves the card forward: to whatever the page tabs to after the ring, and the card closes.
   const tabPastCard = () => {
@@ -1565,14 +1561,6 @@ export function ContextRing({
               size={size}
               setup={setup}
               breakdown={reported}
-              working={working}
-              onCompact={
-                onCompact &&
-                (() => {
-                  closeCard();
-                  onCompact();
-                })
-              }
               onOpenDetails={
                 onOpenDetails &&
                 (() => {

webviews/src/agent-session/acpmux/ContextCard.tsx

@@ -72,16 +72,12 @@ export function compactBreakdownRows(breakdown: Breakdown): CompactBreakdownRow[
 export function ContextCardBody({
   used,
   size,
-  working,
-  onCompact,
   onOpenDetails,
   breakdown: reported,
 }: {
   used: number;
   size: number;
   setup?: number;
-  working: boolean;
-  onCompact?(): void;
   onOpenDetails?(): void;
   breakdown?: unknown;
 }) {
@@ -127,19 +123,12 @@ export function ContextCardBody({
           ))}
         </ul>
       )}
-      {(onCompact || onOpenDetails) && (
+      {onOpenDetails && (
         <div className="acpmux-context-card-foot">
-          {onCompact && (
-            <button type="button" className="acpmux-context-card-compact" disabled={working} onClick={onCompact}>
-              {t("context.compact")}
-            </button>
-          )}
-          {onOpenDetails && (
-            <button type="button" className="acpmux-context-card-details" onClick={onOpenDetails}>
-              {t("context.details")}
-              <span aria-hidden="true">›</span>
-            </button>
-          )}
+          <button type="button" className="acpmux-context-card-details" onClick={onOpenDetails}>
+            {t("context.details")}
+            <span aria-hidden="true">›</span>
+          </button>
         </div>
       )}
     </>

webviews/src/agent-session/acpmux/ContextRing.gallery.tsx

@@ -12,8 +12,6 @@ type Props = {
   setup?: number;
   breakdown?: unknown;
   details?: boolean;
-  /// The agent lists `/compact`: the card offers Compact (App.tsx `compactChat`).
-  compact?: boolean;
   wheel?: "compact" | "standard" | "minimal";
 };
 
@@ -32,7 +30,6 @@ function GalleryContextRing(props: Props) {
         breakdown={props.breakdown}
         // The chat's Inspector reveal (App.tsx); the gallery has no Inspector to open.
         onOpenDetails={props.details ? () => {} : undefined}
-        onCompact={props.compact ? () => {} : undefined}
       />
       <button
         type="button"
@@ -109,11 +106,6 @@ export default componentEntry<Props>({
       props: { used: 111_000, size: 475_000, setup: 21_000, details: true },
       play: hoverCard,
     },
-    "card-claude-compact": {
-      note: 'Hover on a Claude chat whose agent lists /compact: the card ends with Compact beside Details › (Leo, 2026-10-28: "You don\'t have the compact session"; #17537 had it, #20454 dropped its wiring).',
-      props: { used: 111_000, size: 475_000, setup: 21_000, details: true, compact: true },
-      play: hoverCard,
-    },
     "card-codex": {
       note: "Hover on a Codex chat that reports only the window: the left-aligned card stays compact with one summary line and a thin usage bar.",
       props: { used: 111_000, size: 475_000, details: true },

webviews/src/agent-session/acpmux/contextCard.css

@@ -129,7 +129,6 @@
   margin-top: var(--ds-space-1);
 }
 
-.acpmux-context-card-compact,
 .acpmux-context-card-details {
   height: var(--cmux-control-height);
   padding: 0 var(--ds-space-1);
@@ -156,17 +155,11 @@
 
 .acpmux-context-card-details span { margin-inline-start: auto; }
 
-.acpmux-context-card-compact:hover:not(:disabled),
 .acpmux-context-card-details:hover {
   background: var(--acpmux-menu-hover);
   color: var(--agent-text);
 }
 
-.acpmux-context-card-compact:disabled {
-  opacity: 0.5;
-}
-
-.acpmux-context-card-compact:focus-visible,
 .acpmux-context-card-details:focus-visible {
   outline: 1.5px solid var(--agent-text);
   outline-offset: 1px;

webviews/src/agent-session/acpmux/inspector/ContextSection.tsx

@@ -4,7 +4,7 @@
 // (`summary.contextBreakdown`) splits it by category, with the MCP tools, memory files and skills
 // it names under folds; without one, the parts are what is used and the free space. The composer's
 // context ring draws the same breakdown in its details (ComposerPickers ContextRing). Where the agent
-// lists `/compact`, Compact ends it, as the ring's card offers it (Leo, 2026-10-28: "You don't have
+// lists `/compact`, Compact ends it; the ring's card has none (Leo, 2026-10-28: "You don't have
 // the compact session").
 import { useState } from "react";
 import { useT } from "../i18n";
@@ -192,7 +192,7 @@ export function ContextSection({
   /// Sends the chat's agent its `/compact` (App.tsx `compactChat`); unset where the agent lists no
   /// compact command or the chat cannot be sent to, so no Compact shows.
   onCompact?: () => void;
-  /// A turn runs: Compact is off until it ends, as the composer ring's card has it (ContextCard).
+  /// A turn runs: Compact is off until it ends.
   working?: boolean;
 }) {
   const t = useT();

webviews/test/agent-pane-turn-tokens.test.tsx

@@ -519,7 +519,7 @@ for (const [harness, family] of [
 // still carries the setup value for the context summary, but it is intentionally not guessed into
 // the small Codex-style hover surface.
 const compactCard = (usage: { used: number; size: number; setup?: number }) =>
-  renderToStaticMarkup(<ContextCardBody {...usage} working={false} />).includes("acpmux-context-card-line");
+  renderToStaticMarkup(<ContextCardBody {...usage} />).includes("acpmux-context-card-line");
 
 test("a usage record's reported setup reaches the context summary while the tooltip stays compact", async () => {
   const withSetup: Step = [

webviews/test/chat-inspector-context-breakdown.test.tsx

@@ -183,9 +183,10 @@ test("the composer ring keeps Claude's breakdown details and uses a compact tool
   expect(plain.querySelector(".acpmux-context-card-bar")).not.toBeNull();
 });
 
-// Leo, 2026-10-28: "You don't have the compact session." Compact in Session Info's Context and the
-// ring's card: only where the App hands a compact (the agent lists /compact and the chat can be sent
-// to), off while a turn runs.
+// Leo, 2026-10-28: "You don't have the compact session." Compact in Session Info's Context: only
+// where the App hands a compact (the agent lists /compact and the chat can be sent to), off while a
+// turn runs. The composer ring's card has none (Leo, 2026-10-31: "JUST F***ING REMOVE COMPACT FROM
+// THE F***ING POPOVER").
 const compactButton = (container: ParentNode) =>
   [...container.querySelectorAll<HTMLButtonElement>(".acpmux-chat-inspector-context__actions button")].find(
     (button) => button.textContent === "Compact",
@@ -229,16 +230,12 @@ test("Session Info's Compact is off while a turn runs", async () => {
   expect(sent).toEqual([]);
 });
 
-test("the composer ring's card shows Compact again when the App hands one, and sends it", async () => {
+test("the composer ring's card has no Compact, only Details", async () => {
   const container = installDom();
   root = createRoot(container);
-  const sent: string[] = [];
-  await act(async () =>
-    root!.render(<ContextRing used={60_000} size={200_000} onCompact={() => sent.push("compact")} />),
-  );
+  await act(async () => root!.render(<ContextRing used={60_000} size={200_000} onOpenDetails={() => {}} />));
   await act(async () => container.querySelector<HTMLButtonElement>(".acpmux-context-ring")!.click());
-  const compact = document.querySelector<HTMLButtonElement>(".acpmux-context-card-compact")!;
-  expect(compact.textContent).toBe("Compact");
-  await act(async () => compact.click());
-  expect(sent).toEqual(["compact"]);
+  const buttons = [...document.querySelectorAll<HTMLButtonElement>(".acpmux-context-card button")];
+  expect(buttons.map((button) => button.className)).toEqual(["acpmux-context-card-details"]);
+  expect(buttons.some((button) => button.textContent === "Compact")).toBe(false);
 });