diff --git a/src/components/chat/message-input.test.tsx b/src/components/chat/message-input.test.tsx
index c469de545e..0a13bb4971 100644
--- a/src/components/chat/message-input.test.tsx
+++ b/src/components/chat/message-input.test.tsx
@@ -837,6 +837,72 @@ describe("MessageInput slash menu while the agent connects", () => {
     )
   }
 
+  it("keeps `/` as a slash-command trigger", async () => {
+    await mountAndType({
+      commandsLoading: false,
+      availableCommands: COMMANDS,
+    })
+    const menu = await screen.findByTestId("slash-menu")
+    expect(within(menu).getByText("/compact")).toBeInTheDocument()
+  })
+
+  it("treats `、` as the same slash-command trigger", async () => {
+    await mountAndType(
+      { commandsLoading: false, availableCommands: COMMANDS },
+      "、"
+    )
+    const menu = await screen.findByTestId("slash-menu")
+    expect(within(menu).getByText("/compact")).toBeInTheDocument()
+  })
+
+  it("preserves `、` in ordinary Chinese text", async () => {
+    const { editor } = await mountAndType(
+      { commandsLoading: false, availableCommands: COMMANDS },
+      "苹果、香蕉"
+    )
+    await act(async () => {
+      await new Promise((resolve) => setTimeout(resolve, 50))
+    })
+    expect(serializeDocToText(editor.state.doc)).toBe("苹果、香蕉")
+    expect(screen.queryByTestId("slash-menu")).toBeNull()
+  })
+
+  it("serializes a command selected through `、` with `/`", async () => {
+    const { editor } = await mountAndType(
+      { commandsLoading: false, availableCommands: COMMANDS },
+      "、"
+    )
+    const menu = await screen.findByTestId("slash-menu")
+    fireEvent.mouseDown(within(menu).getByRole("button", { name: /\/compact/ }))
+    await waitFor(() =>
+      expect(serializeDocToText(editor.state.doc).trim()).toBe("/compact")
+    )
+    expect(serializeDocToText(editor.state.doc)).not.toContain("、")
+  })
+
+  it("does not select a slash command while the IME is composing", async () => {
+    const { editor } = await mountAndType(
+      { commandsLoading: false, availableCommands: COMMANDS },
+      "、"
+    )
+    await screen.findByTestId("slash-menu")
+
+    act(() => {
+      ;(editor.view.dom as HTMLElement).dispatchEvent(
+        new KeyboardEvent("keydown", {
+          key: "Enter",
+          bubbles: true,
+          cancelable: true,
+          isComposing: true,
+        })
+      )
+    })
+
+    const text = serializeDocToText(editor.state.doc)
+    expect(text).toContain("、")
+    expect(text).not.toContain("/compact")
+  })
+
   it("opens the panel on a loading row while commands are still on their way", async () => {
     await mountAndType({ commandsLoading: true, availableCommands: [] })
     const menu = await screen.findByTestId("slash-menu")
diff --git a/src/components/chat/message-input.tsx b/src/components/chat/message-input.tsx
index 23abc40225..5ab6eb2051 100644
--- a/src/components/chat/message-input.tsx
+++ b/src/components/chat/message-input.tsx
@@ -794,8 +794,9 @@ export function MessageInput({
   // ── Editor-driven `/` (commands) and `$` (Codex skills) trigger detection ──
   // The `@` mention panel is now owned by RichComposer; this only handles the
   // runtime-command menus. We inspect the text before the collapsed caret in the
-  // current block: a `/` (any agent) or `$` (Codex) at the start or right after
-  // whitespace, and not inside inline code / a code block, opens the menu.
+  // current block: a `/` or its Chinese-IME alias `、` (any agent), or `$`
+  // (Codex), at the start or right after whitespace, and not inside inline code
+  // / a code block, opens the menu.
   const detectSlashTrigger = useCallback(() => {
     const editor = editorRef.current?.getEditor()
     const close = () => {
@@ -814,10 +815,11 @@ export function MessageInput({
       " "
     )
     const regex =
-      agentType === "codex" ? /(^|\s)([/$])(\S*)$/ : /(^|\s)(\/)(\S*)$/
+      agentType === "codex" ? /(^|\s)([/$、])(\S*)$/ : /(^|\s)([/、])(\S*)$/
     const match = before.match(regex)
     if (!match) return close()
-    const trigger = match[2] as "/" | "$"
+    const matchedTrigger = match[2] as "/" | "$" | "、"
+    const trigger = matchedTrigger === "、" ? "/" : matchedTrigger
     // Only `/` is gated here. Its source is the agent's own command list, which
     // exists only once the connection is up — so an empty list means "nothing to
     // show" unless the connection is still coming, where the panel opens on a
@@ -860,7 +862,7 @@ export function MessageInput({
     setSlashTriggerChar(null)
   }, [])
 
-  // Replace the live `/`-or-`$` token immediately before the caret with
+  // Replace the live `/`-, `、`-, or `$` token immediately before the caret with
   // an inline reference badge (+ a trailing space unless one already follows),
   // then close the menu. Used by both the command (`/`) and Codex-skill (`$`)
   // selections — the badge serializes back to its literal `/cmd` / `$skill`
@@ -876,7 +878,7 @@ export function MessageInput({
         undefined,
         " "
       )
-      const match = before.match(/(^|\s)([/$])(\S*)$/)
+      const match = before.match(/(^|\s)([/$、])(\S*)$/)
       const charAfter =
         $from.parentOffset < $from.parent.content.size
           ? $from.parent.textBetween(
@@ -889,7 +891,7 @@ export function MessageInput({
       const suffix = charAfter && /\s/.test(charAfter) ? "" : " "
       let chain = editor.chain().focus()
       if (match) {
-        // Remove the live `/…` / `$…` token before the caret.
+        // Remove the live `/…` / `、…` / `$…` token before the caret.
         const tokenLen = match[2].length + match[3].length
         chain = chain.deleteRange({ from: $from.pos - tokenLen, to: $from.pos })
       }