diff --git a/.github/actions/greeting/action.yaml b/.github/actions/greeting/action.yaml
new file mode 100644
index 0000000..2a69fdd
--- /dev/null
+++ b/.github/actions/greeting/action.yaml
@@ -0,0 +1,15 @@
+name: Hello World Action
+
+description: A custom action that prints a hello message
+
+inputs:
+  message:
+    description: The message to print
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Set Greeting
+      run: echo "Hello $INPUT_WHO_TO_GREET."
+      shell: bash
\ No newline at end of file
diff --git a/.github/workflows/exercise_5.yaml b/.github/workflows/exercise_5.yaml
new file mode 100644
index 0000000..3ae691b
--- /dev/null
+++ b/.github/workflows/exercise_5.yaml
@@ -0,0 +1,17 @@
+name: Hello World
+
+on:
+  push:
+    branches:
+      - master
+  schedule:
+    - cron: 0 */5 * * * *
+
+jobs:
+  hello-world:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Print Hello World
+        uses: ./.github/actions/greeting/action@v1
+        with:
+          message: "Hello, ${{ github.event.pull_request.title }}"
\ No newline at end of file
diff --git a/exercise_5_extra/exercise_5.yaml b/exercise_5_extra/exercise_5.yaml
new file mode 100644
index 0000000..e69de29