diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..38160ce
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,35 @@
+name: "Backdoor Detection"
+description: "Perform backdoor and vulnerability detection on your code and dependencies."
+inputs:
+  code_path:
+    description: "Path to the code directory to be analyzed."
+    required: true
+  vulnerabilities_file:
+    description: "Path to the vulnerabilities file for requirements detection."
+    required: true
+  requirements_file:
+    description: "Path to the requirements.txt file."
+    required: true
+  output_format:
+    description: "Output format for the detection results (html, md, txt)."
+    required: true
+    default: "txt"
+runs:
+  using: "composite"
+  steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: "3.x"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install packaging
+    - name: Run Backdoor Detection
+      run: python ${{ github.workspace }}/detection/backdoor_detection.py ${{ inputs.code_path }} ${{ inputs.output_format }}
+      shell: bash
+    - name: Run Requirements Detection
+      run: python ${{ github.workspace }}/detection/requirements_detection.py ${{ github.workspace }}/crawler/trans_extracted_data.txt ${{ inputs.requirements_file }} ${{ inputs.output_format }}
+      shell: bash