diff --git a/action.yaml b/action.yaml
new file mode 100644
index 0000000..b7642a6
--- /dev/null
+++ b/action.yaml
@@ -0,0 +1,14 @@
+name: 'Custom Github Action'
+description: 'A Github Action that takes an input and returns the square of the number'
+inputs:
+  num:
+    description: 'Enter a number'
+    required: true
+    default: "1"
+runs:
+  using: 'composite'
+  steps:
+    - name: Fetch the number's square
+      id: get-square
+      run: python3 -m get_num_square.py
+      shell: bash