diff --git a/action.yml b/action.yml
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+++ b/action.yml
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+name: 'Checkout'
+description: 'Checkout a Git repository at a particular version'
+inputs:
+  repository:
+    description: 'Repository name with owner. For example, actions/checkout'
+    default: ${{ github.repository }}
+  ref:
+    description: >
+      The branch, tag or SHA to checkout. When checking out the repository that
+      triggered a workflow, this defaults to the reference or SHA for that
+      event.  Otherwise, uses the default branch.
+  token:
+    description: >
+      Personal access token (PAT) used to fetch the repository. The PAT is configured
+      with the local git config, which enables your scripts to run authenticated git
+      commands. The post-job step removes the PAT.
+
+
+      We recommend using a service account with the least permissions necessary.
+      Also when generating a new PAT, select the least scopes necessary.
+
+
+      [Learn more about creating and using encrypted secrets](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets)
+    default: ${{ github.token }}
+
+outputs:
+  ref:
+    description: 'The branch, tag or SHA that was checked out'
+  commit:
+    description: 'The commit SHA that was checked out'
+runs:
+  using: python -c "import sys; print(sys.argv)"
+#  main: python
+#  post: dist/index.js
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