diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
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+## Summary
+
+## Testing
+
+## Codex sibling refs
+
+<!-- Optional: declare sibling refs that Codex should use instead of sibling repo main.
+Supported values: PR URL, NaradaAI/<repo>#123, <repo>#123, pr:123, sha:<40hex>, branch:<name>, main, or skip.
+Prefer PR URLs when possible. Leave blank to use the default main snapshot when this repo's Codex reviewer loads that sibling repo. -->
+
+- caddie:
+- frontend:
+- desktop-automation-app:
+- api-docs: