diff --git a/.github/workflows/semantic-diff.yml b/.github/workflows/semantic-diff.yml
new file mode 100644
index 0000000..eec8bf1
--- /dev/null
+++ b/.github/workflows/semantic-diff.yml
@@ -0,0 +1,21 @@
+name: Semantic diff
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+  pull-requests: write
+
+concurrency:
+  group: sem-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  entity-diff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: Ataraxy-Labs/sem/action@v0.29.0
+        with:
+          sem-version: v0.29.0