diff --git a/.github/workflows/check-diffs.yml b/.github/workflows/check-diffs.yml
new file mode 100644
index 00000000..a93f3476
--- /dev/null
+++ b/.github/workflows/check-diffs.yml
@@ -0,0 +1,33 @@
+name: Check `opensaas-sh` diffs are up to date
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  check-diffs:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install deps
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y diffutils coreutils
+
+      - name: Generate diffs
+        run: |
+          ./opensaas-sh/tools/patch.sh
+          ./opensaas-sh/tools/diff.sh
+
+      - name: Check for uncommitted changes
+        run: |
+          if [[ -n $(git status --porcelain) ]]; then
+            echo "Error: There are uncommitted diff changes"
+            echo "Please run './opensaas-sh/tools/patch.sh' and './opensaas-sh/tools/diff.sh' locally and commit the changes"
+            git status
+            exit 1
+          fi