diff --git a/docs/coding/configuration/vim.md b/docs/coding/configuration/vim.md
index 4cf5f7d3c..df0c8a82b 100644
--- a/docs/coding/configuration/vim.md
+++ b/docs/coding/configuration/vim.md
@@ -1,3 +1,7 @@
+---
+todo: true
+---
+
 # Vim
 
 Vim是基于命令行的文本编辑器。
@@ -14,6 +18,7 @@ Vim的交互命令如下表所列，交互命令以`:`开头。
 |`Ctrl+V`|选择块|`i`|切换到插入模式|
 
 |输入|功能|输入|功能|
+|:-:|:-:|:-:|:-:|
 |`:q`|退出Vim|`:q!`|退出而不保存|
 |`:w`|保存|`<Esc>`|退出插入模式|
 |`:h`|查询帮助|`:version`|查询版本和功能|
diff --git a/docs/index.md b/docs/index.md
index d77dcd958..3ee07561e 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -14,7 +14,7 @@ hide:
 * [论文笔记](papers/index.md)
 * [关于我](about.md)
 
-## :material-timeline-clock: Blog timeline
+### :material-timeline-clock: Blog timeline
 
 ::timeline:: class="home-timeline"
 
@@ -22,10 +22,14 @@ hide:
 
 ::/timeline::
 
-## :material-pen-plus: Recent updates
+### :material-pen-plus: Recent updates
 
 {{ build_recent(5) }}
 
+### :material-typewriter: Currently working on
+
+{{ build_todo() }}
+
 ## :material-palette: Customization
 
 Click on the buttons to change the primary color.
diff --git a/docs/math/empirical-methods/potential-outcome-framework.md b/docs/math/empirical-methods/potential-outcome-framework.md
index 49a55941f..9cf6f5927 100644
--- a/docs/math/empirical-methods/potential-outcome-framework.md
+++ b/docs/math/empirical-methods/potential-outcome-framework.md
@@ -1,3 +1,7 @@
+---
+todo: true
+---
+
 # Potential Outcome Framework
 
 * Unit of analysis：不同时间下的同一个个体应当看作不同的个体
diff --git a/main/__init__.py b/main/__init__.py
index a44a341f5..9f2fec2bf 100644
--- a/main/__init__.py
+++ b/main/__init__.py
@@ -16,4 +16,5 @@ def define_env(env: plugin.MacrosPlugin):
     env.macro(network.remote_content)
     env.macro(metadata.build_timeline)
     env.macro(metadata.build_recent)
+    env.macro(metadata.build_todo)
     env.filter(len)
diff --git a/main/metadata.py b/main/metadata.py
index c618436a0..cbb565ef1 100644
--- a/main/metadata.py
+++ b/main/metadata.py
@@ -84,6 +84,20 @@ def build_recent(topk: int) -> str:
         for page in pages[:topk]
     ])
 
+def build_todo() -> str:
+    global _page_meta_original
+    pages: List[Dict[str, Any]] = [
+        {
+            'url': v['file'],
+            'title': f"[{v['title']}]({v['file']})"
+        }
+        for v in _page_meta_original.values()
+        if criteria(v) and ('todo' in v['meta'] and v['meta']['todo']) # type: ignore
+    ]
+    pages.sort(key=lambda _: _['title'], reverse=True)
+    if pages:
+        return '\n'.join([f"* {page['title']}" for page in pages])
+    return 'TODO list is clear!'
 
 def filter_pages(category: str) -> List[Dict[str, str | Dict[str, str]]]:
     global _page_meta_original
diff --git a/requirements.txt b/requirements.txt
index dfd8309da..d6a260cf4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,6 +11,7 @@ mkdocs-jupyter==0.24.2
 pymdown-extensions==10.1
 matplotlib==3.7.2
 pandas==2.0.3
+scikit-learn==1.3.0
 jupyter==1.0.0
 requests==2.31.0
 jieba==0.42.1