diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
new file mode 100644
index 00000000..7bf7ec33
--- /dev/null
+++ b/.github/workflows/check.yml
@@ -0,0 +1,35 @@
+name: check
+on:
+  workflow_dispatch:
+  pull_request:
+    types: [opened, synchronize, reopened, edited]
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+      - uses: tj-actions/changed-files@v45
+        id: files
+        with:
+          files: |
+            tests/**/*.{js,ts}
+            scripts/**/*.{js,ts}
+            sites/**/*.{js,ts}
+      - run: echo ${{ steps.files.outputs.all_changed_files }}
+      - uses: actions/setup-node@v4
+        if: ${{ !env.ACT && steps.files.outputs.any_changed == 'true' }}
+        with:
+          node-version: 22
+          cache: 'npm'
+      - name: install dependencies
+        if: steps.files.outputs.any_changed == 'true'
+        run: npm install
+      - name: check changed files
+        if: steps.files.outputs.any_changed == 'true'
+        run: |
+          npx eslint ${{ steps.files.outputs.all_changed_files }}
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