diff --git a/apps/buddy/src/modules/prompt-input/model/chatComposerInput.ts b/apps/buddy/src/modules/prompt-input/model/chatComposerInput.ts
index 624cec2f..690edcd0 100644
--- a/apps/buddy/src/modules/prompt-input/model/chatComposerInput.ts
+++ b/apps/buddy/src/modules/prompt-input/model/chatComposerInput.ts
@@ -78,7 +78,10 @@ export function serializeChatComposerContent(content: JSONContent): ChatComposer
 }
 
 export function findChatComposerTrigger(textBeforeCursor: string): ChatComposerTrigger | null {
-  const candidateSlashIndex = findTriggerStart(textBeforeCursor, '/')
+  const candidateSlashIndex = Math.max(
+    findTriggerStart(textBeforeCursor, '/'),
+    findTriggerStart(textBeforeCursor, '、'),
+  )
   const slashIndex = candidateSlashIndex >= 0
     && textBeforeCursor.slice(0, candidateSlashIndex).trim().length === 0
     ? candidateSlashIndex
@@ -103,7 +106,7 @@ export function findChatComposerTrigger(textBeforeCursor: string): ChatComposerT
   if (/\s/u.test(query))
     return null
   return {
-    kind: trigger === '/' ? 'slash' : trigger === '$' ? 'skill' : 'mention',
+    kind: trigger === '/' || trigger === '、' ? 'slash' : trigger === '$' ? 'skill' : 'mention',
     query,
   }
 }
@@ -148,7 +151,7 @@ export function shouldSubmitChatComposerKey(
     && !event.metaKey
 }
 
-function findTriggerStart(value: string, trigger: '/' | '$' | '@'): number {
+function findTriggerStart(value: string, trigger: '/' | '、' | '$' | '@'): number {
   const index = value.lastIndexOf(trigger)
   if (index < 0 || (index > 0 && !TRIGGER_BOUNDARY_PATTERN.test(value[index - 1] ?? '')))
     return -1
diff --git a/apps/buddy/src/modules/tasks/widgets/composer/__tests__/chatComposerEditing.spec.ts b/apps/buddy/src/modules/tasks/widgets/composer/__tests__/chatComposerEditing.spec.ts
index 176de542..898ecbe6 100644
--- a/apps/buddy/src/modules/tasks/widgets/composer/__tests__/chatComposerEditing.spec.ts
+++ b/apps/buddy/src/modules/tasks/widgets/composer/__tests__/chatComposerEditing.spec.ts
@@ -128,6 +128,21 @@ async function mountComposer(options: {
 }
 
 describe('chat composer editing', () => {
+  it('opens slash command suggestions with the Chinese ideographic comma and replaces the trigger on selection', async () => {
+    const flow = await mountComposer()
+    flow.editor.view.dom.focus()
+    flow.editor.commands.insertContent('、rev')
+
+    await expect.poll(() => flow.composer.activeTrigger.value).toEqual({ kind: 'slash', query: 'rev' })
+    const review = flow.composer.suggestions.value.find(({ option }) => option.value === '/review')?.option
+    expect(review).toBeDefined()
+    flow.composer.selectSuggestion(review)
+
+    const content = chatComposerDocumentToUserContent(flow.editor.getJSON())
+    expect(content.body[0]?.content[0]).toMatchObject({ type: 'prompt_directive', directive: 'slash_command', commandMode: 'prompt', value: '/review' })
+    expect(JSON.stringify(content)).not.toContain('、')
+  })
+
   it.each(['select', 'submit'] as const)('submits a run action with its arguments through %s', async (source) => {
     const flow = await mountComposer()
     const prefix = source === 'select' ? '/com' : '/compact'