diff --git a/packages/parser/src/formats/chatlab.ts b/packages/parser/src/formats/chatlab.ts
index ac4aca7d..69ad91c9 100644
--- a/packages/parser/src/formats/chatlab.ts
+++ b/packages/parser/src/formats/chatlab.ts
@@ -154,27 +154,8 @@ async function* parseChatLab(options: ParseOptions): AsyncGenerator<ParseEvent,
 
   yield { type: 'meta', data: meta }
 
-  // 解析 members（如果在文件开头能找到）
-  const members: ParsedMember[] = []
-  try {
-    const membersMatch = headContent.match(/"members"\s*:\s*\[([\s\S]*?)\]/)
-    if (membersMatch) {
-      const membersJson = JSON.parse(`[${membersMatch[1]}]`) as ChatLabMember[]
-      for (const m of membersJson) {
-        members.push({
-          platformId: m.platformId,
-          accountName: m.accountName,
-          groupNickname: m.groupNickname,
-          avatar: m.avatar,
-          roles: m.roles,
-        })
-      }
-    }
-  } catch {
-    // members 可能太大，稍后从消息中收集
-  }
-
   // 收集成员和消息
+  const members: ParsedMember[] = []
   const memberMapFromMessages = new Map<string, ParsedMember>()
   const messageBatch: ParsedMessage[] = []
 
@@ -186,12 +167,24 @@ async function* parseChatLab(options: ParseOptions): AsyncGenerator<ParseEvent,
       bytesRead += typeof chunk === 'string' ? Buffer.byteLength(chunk) : chunk.length
     })
 
-    const pipeline = chain([readStream, parser(), pick({ filter: /^messages\.\d+$/ }), streamValues()])
+    // 单次流式遍历同时读取成员和消息，避免用正则截断含嵌套数组的 members。
+    const pipeline = chain([readStream, parser(), pick({ filter: /^(?:members|messages)\.\d+$/ }), streamValues()])
 
     // 用于收集批次的临时数组
     const batchCollector: ParsedMessage[] = []
 
-    pipeline.on('data', ({ value }: { value: ChatLabMessage }) => {
+    pipeline.on('data', ({ value }: { value: ChatLabMember | ChatLabMessage }) => {
+      if (!('sender' in value)) {
+        members.push({
+          platformId: value.platformId,
+          accountName: value.accountName,
+          groupNickname: value.groupNickname,
+          avatar: value.avatar,
+          roles: value.roles,
+        })
+        return
+      }
+
       const msg = value
 
       // 如果前面没解析到 members，从消息中收集
diff --git a/packages/parser/src/native/chatlab-native.test.ts b/packages/parser/src/native/chatlab-native.test.ts
index 5b8d71b7..ccde2eb9 100644
--- a/packages/parser/src/native/chatlab-native.test.ts
+++ b/packages/parser/src/native/chatlab-native.test.ts
@@ -163,11 +163,7 @@ describe('chatlab native parser parity', { skip: !nativeAvailable() && 'native m
     assert.deepEqual(nativeResult.messages, [])
   })
 
-  it('keeps member roles and avatars where the TS head-regex heuristic loses them', async () => {
-    // The TS parser extracts head members with a non-greedy regex that breaks
-    // on nested arrays (roles), silently degrading to message-collected
-    // members. The Rust kernel parses the members array structurally, so this
-    // is a deliberate improvement over TS behavior, not a parity case.
+  it('keeps member roles and avatars in both parsers', async () => {
     const withRoles = {
       chatlab: { version: '0.0.2' },
       meta: { name: '带角色群', platform: 'qq', type: 'group' },
@@ -184,18 +180,10 @@ describe('chatlab native parser parity', { skip: !nativeAvailable() && 'native m
     }
     const { nativeResult, tsResult } = await parseBothWays('带角色群.json', JSON.stringify(withRoles))
 
-    // TS loses the head members entirely (only u1 appears, from messages).
-    assert.equal(tsResult.members.length, 1)
-    assert.equal(tsResult.members[0].avatar, undefined)
-
-    // Native keeps the full member list including roles and avatars.
-    assert.equal(nativeResult.members.length, 2)
-    assert.equal(nativeResult.members[0].avatar, 'https://example.com/a.jpg')
-    assert.deepEqual(nativeResult.members[0].roles, [{ id: 'owner' }, { id: 'admin', name: '管理员' }])
-
-    // Meta and messages still match exactly.
-    assert.deepEqual(nativeResult.meta, tsResult.meta)
-    assert.deepEqual(nativeResult.messages, tsResult.messages)
+    assertParity(nativeResult, tsResult)
+    assert.equal(tsResult.members.length, 2)
+    assert.equal(tsResult.members[0].avatar, 'https://example.com/a.jpg')
+    assert.deepEqual(tsResult.members[0].roles, [{ id: 'owner' }, { id: 'admin', name: '管理员' }])
   })
 
   it('falls back to the TS parser for off-spec files', async () => {
diff --git a/tests/chatlab-json-export-roundtrip.test.ts b/tests/chatlab-json-export-roundtrip.test.ts
index d6772202..7af73207 100644
--- a/tests/chatlab-json-export-roundtrip.test.ts
+++ b/tests/chatlab-json-export-roundtrip.test.ts
@@ -44,7 +44,7 @@ test('exports JSON as ChatLab format that can be parsed for re-import', async ()
     )
     insertMessage.run(aliceId, 'Alice Account', '爱丽丝', 100, 0, '筛选范围外', 'msg-1', null)
     insertMessage.run(bobId, 'Bob Account', '鲍勃', 200, 0, '你好', 'msg-2', null)
-    insertMessage.run(aliceId, 'Alice Account', '爱丽丝', 250, 1, null, 'msg-3', 'msg-2')
+    insertMessage.run(bobId, 'Bob Account', '鲍勃', 250, 1, null, 'msg-3', 'msg-2')
 
     const result = exportWithFormat(
       {
@@ -69,7 +69,15 @@ test('exports JSON as ChatLab format that can be parsed for re-import', async ()
     writeFileSync(filePath, result.content, 'utf8')
     assert.equal(detectFormat(filePath)?.id, 'chatlab')
 
-    const parsed = await parseFileSync(filePath)
+    const nativePerfDisabled = process.env.CHATLAB_DISABLE_NATIVE_PERF
+    process.env.CHATLAB_DISABLE_NATIVE_PERF = '1'
+    const parsed = await parseFileSync(filePath).finally(() => {
+      if (nativePerfDisabled === undefined) {
+        delete process.env.CHATLAB_DISABLE_NATIVE_PERF
+      } else {
+        process.env.CHATLAB_DISABLE_NATIVE_PERF = nativePerfDisabled
+      }
+    })
     assert.deepEqual(parsed.meta, {
       name: '测试群',
       platform: 'qq',
@@ -111,9 +119,9 @@ test('exports JSON as ChatLab format that can be parsed for re-import', async ()
         replyToMessageId: undefined,
       },
       {
-        senderPlatformId: 'alice',
-        senderAccountName: 'Alice Account',
-        senderGroupNickname: '爱丽丝',
+        senderPlatformId: 'bob',
+        senderAccountName: 'Bob Account',
+        senderGroupNickname: '鲍勃',
         timestamp: 250,
         type: 1,
         content: null,