diff --git a/kb_workflow/metadata/__init__.py b/kb_workflow/metadata/__init__.py
index dec3e38..c850912 100644
--- a/kb_workflow/metadata/__init__.py
+++ b/kb_workflow/metadata/__init__.py
@@ -4,7 +4,9 @@
 """
 
 from .bilibili_extractor import BilibiliExtractor
+from .zhihu_extractor import ZhihuPlaywrightExtractor
 
 __all__ = [
     "BilibiliExtractor",
+    "ZhihuPlaywrightExtractor",
 ]
diff --git a/kb-zhihu-metadata/markdown_converter.py b/kb_workflow/metadata/markdown_converter.py
similarity index 100%
rename from kb-zhihu-metadata/markdown_converter.py
rename to kb_workflow/metadata/markdown_converter.py
diff --git a/kb-zhihu-metadata/zhihu_article_crawler.py b/kb_workflow/metadata/zhihu_article_crawler.py
similarity index 100%
rename from kb-zhihu-metadata/zhihu_article_crawler.py
rename to kb_workflow/metadata/zhihu_article_crawler.py
diff --git a/kb-zhihu-metadata/zhihu_extractor.py b/kb_workflow/metadata/zhihu_extractor.py
similarity index 100%
rename from kb-zhihu-metadata/zhihu_extractor.py
rename to kb_workflow/metadata/zhihu_extractor.py
diff --git a/kb-zhihu-metadata/zhihu_metadata.py b/kb_workflow/metadata/zhihu_metadata.py
similarity index 100%
rename from kb-zhihu-metadata/zhihu_metadata.py
rename to kb_workflow/metadata/zhihu_metadata.py