Feature request: append-only Content Signal support for Shopify’s managed robots.txt

Community Feedback
1

Would be amazing if you could please provide either:

  1. A native merchant setting that adds
    Content-Signal: search=yes, ai-input=yes, ai-train=no

  2. An append-only Liquid hook that retains Shopify’s complete managed robots.txt output while allowing merchants to add individual directives to the appropriate user-agent group.

Shopify currently documents customization through templates/robots.txt.liquid and robots.default_groups. However, creating that template replaces the platform-managed response, and the object does not reproduce all newer managed agentic crawler rules. Consequently, merchants cannot add a Content Signal without losing Shopify-managed behavior.

Requested acceptance criterion: Shopify’s managed robots.txt remains unchanged except for the merchant-supplied directive under User-agent: *.