diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
new file mode 100644
index 0000000..cfcd892
--- /dev/null
+++ b/.github/workflows/validate.yml
@@ -0,0 +1,28 @@
+name: Validate
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Check JavaScript syntax
+        run: node --check app.js
+
+      - name: Run automated tests
+        run: node --test todo-store.test.mjs
diff --git a/AGENTS.md b/AGENTS.md
index b1232ec..ac51306 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -36,3 +36,4 @@ python3 -m http.server 8000
 - 提交前先运行验证命令并审查 diff。
 - 提交信息使用 Conventional Commits 风格，例如 `feat: add todo filter`。
 - 推送和创建 Pull Request 仅在任务明确要求时执行。
+- GitHub Actions 工作流位于 `.github/workflows/validate.yml`；修改验证命令时同步更新该文件。
diff --git a/README.md b/README.md
index da85630..110e1da 100644
--- a/README.md
+++ b/README.md
@@ -31,3 +31,7 @@ node --test todo-store.test.mjs
 ```
 
 测试覆盖新增待办、筛选、切换完成状态、删除和已保存数据的规范化处理。
+
+## 持续集成
+
+GitHub Actions 会在推送到 `main` 和每个 Pull Request 上自动运行 JavaScript 语法检查与自动化测试。