diff --git a/.github/workflows/delete-merged-branches.yml b/.github/workflows/delete-merged-branches.yml
new file mode 100644
index 000000000..ff902a5c7
--- /dev/null
+++ b/.github/workflows/delete-merged-branches.yml
@@ -0,0 +1,41 @@
+# Author: Ahmad Samir <a.atta@exp-sa.com>
+      name: Auto Delete Branch After Merge
+      
+      on:
+        pull_request:
+          types: [closed]  # triggers when PR is closed (merged or just closed)
+      
+      jobs:
+        delete-merged-branch:
+          if: github.event.pull_request.merged == true
+          name: Delete Merged Branch
+          runs-on: app-sever-project-runner  # your self-hosted runner
+      
+          steps:
+            - name: Delete merged branch (with rules)
+              env:
+                GH_TOKEN: ${{ secrets.GH_TOKEN }}
+                REPO: ${{ github.repository }}
+                BASE_REF: ${{ github.event.pull_request.base.ref }}
+                HEAD_REF: ${{ github.event.pull_request.head.ref }}
+              run: |
+                echo "🔍 Base branch: $BASE_REF"
+                echo "🔍 Head branch: $HEAD_REF"
+      
+                # ❌ Do not delete dev_* merged into preprod_*
+                if [[ "$HEAD_REF" == dev_* && "$BASE_REF" == preprod_* ]]; then
+                  echo "🚫 Rule: Do not delete dev_* merged into preprod_*"
+                  exit 0
+                fi
+      
+                # ❌ Do not delete preprod_* merged into master_*
+                if [[ "$HEAD_REF" == preprod_* && "$BASE_REF" == master_* ]]; then
+                  echo "🚫 Rule: Do not delete preprod_* merged into master_*"
+                  exit 0
+                fi
+      
+                echo "✅ Allowed to delete '$HEAD_REF' from '$REPO'"
+      
+                curl -s -X DELETE                   -H "Authorization: token $GH_TOKEN"                   -H "Accept: application/vnd.github.v3+json"                   https://api.github.com/repos/$REPO/git/refs/heads/$HEAD_REF                   -w "
+🧹 Deleted branch '$HEAD_REF' from '$REPO' — HTTP %{http_code}
+"
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