diff --git a/.github/workflows/Abc.yml b/.github/workflows/Abc.yml
index 104679c..eec0160 100644
--- a/.github/workflows/Abc.yml
+++ b/.github/workflows/Abc.yml
@@ -1,7 +1,8 @@
 name: build and test Backend
 
-on: [push]
-
+on:
+  pull_request:
+    types: [opened, edited, synchronize, reopened]
 jobs:
   
   compliance:
@@ -14,9 +15,19 @@ jobs:
   produce-artifacts:
     runs-on: ubuntu-latest
 
+  
     steps:
-
-    - name: GitHub-Kontext anzeigen
-      env:
-       GITHUB_CONTEXT: ${{ toJson(github) }}
-      run: echo "$GITHUB_CONTEXT"
+      - name: Show the PR Title
+        run: echo "The title is ${{ github.event.pull_request.title }}"
+      - name: Check title prefix
+        env:
+          PR_TITLE: ${{ github.event.pull_request.title }}
+        run: |
+          # The regex checks for line start (^), followed by keywords, and an optional description format
+          if [[ "$PR_TITLE" =~ ^(feat|fix|docs)(\(.*\))?: ]]; then
+            echo "Success: PR title starts with a valid prefix."
+          else
+            echo "Error: PR title must start with 'feat:', 'fix:', or 'docs:'."
+            echo "Current title: $PR_TITLE"
+            exit 1
+          fi