diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..1847df5
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,72 @@
+name: 'SSH Deploy'
+description: 'SSH to remote host and run the deploy script for a given stack'
+inputs:
+  deploy_host:
+    description: 'Remote host to deploy to'
+    required: true
+  deploy_user:
+    description: 'SSH user on remote host'
+    required: true
+  deploy_ssh_key:
+    description: 'SSH private key for authentication'
+    required: true
+  deploy_known_hosts:
+    description: 'SSH known_hosts entry for the remote host'
+    required: true
+  stack:
+    description: 'Stack name to deploy (e.g. paper-trading)'
+    required: true
+  deploy_tag:
+    description: 'Tag/branch name for notification messages'
+    required: false
+    default: ''
+  ntfy_topic:
+    description: 'ntfy topic for deploy success notification'
+    required: false
+    default: ''
+  ntfy_token:
+    description: 'ntfy token for deploy success notification'
+    required: false
+    default: ''
+  ntfy_failure_topic:
+    description: 'ntfy topic for deploy failure notification (defaults to ntfy_topic)'
+    required: false
+    default: ''
+  ntfy_failure_token:
+    description: 'ntfy token for deploy failure notification (defaults to ntfy_token)'
+    required: false
+    default: ''
+
+runs:
+  using: "composite"
+  steps:
+
+    - name: Configure SSH & Deploy
+      shell: bash
+      run: |
+        mkdir -p ~/.ssh
+        echo "${{ inputs.deploy_ssh_key }}" > ~/.ssh/deploy_key
+        chmod 600 ~/.ssh/deploy_key
+        echo "${{ inputs.deploy_known_hosts }}" > ~/.ssh/known_hosts
+        chmod 600 ~/.ssh/known_hosts
+        ssh -i ~/.ssh/deploy_key \
+          "${{ inputs.deploy_user }}@${{ inputs.deploy_host }}" \
+          "${{ inputs.stack }}"
+
+    - name: Notify Deploy Success
+      if: success() && inputs.ntfy_topic != ''
+      uses: https://lab.zlymeda.dynu.net/actions/ntfy-notify@main
+      with:
+        ntfy_topic: ${{ inputs.ntfy_topic }}
+        ntfy_token: ${{ inputs.ntfy_token }}
+        status: success
+        message: 🚀 ${{ inputs.stack }} deployed${{ inputs.deploy_tag && format(' ({0})', inputs.deploy_tag) || '' }}
+
+    - name: Notify Deploy Failure
+      if: failure()
+      uses: https://lab.zlymeda.dynu.net/actions/ntfy-notify@main
+      with:
+        ntfy_topic: ${{ inputs.ntfy_failure_topic || inputs.ntfy_topic }}
+        ntfy_token: ${{ inputs.ntfy_failure_token || inputs.ntfy_token }}
+        status: failure
+        message: Deploy failed (${{ inputs.stack }})${{ inputs.deploy_tag && format(' ({0})', inputs.deploy_tag) || '' }}