The custom route "ai_agents_form_integration.field_type_creation_$entity_type_id" added by the module to allow users to AI Generate new fields on a content type borrows the Field UI module's _field_ui_field_reuse_access custom access check to control access to the generation form.
This access check is used for the "Reuse Existing Field" link that appears on the Field UI page to allow users to add a field that is used on another bundle of the same entity type but has not been added to the bundle currently being configured. It is designed to deny access to a route using it if all the available fields created for an entity have already been added to that bundle. This means that if you visit the Manage Fields form for a Node type that has all the fields currently created for Nodes added to it, you will not see the "Create Field Types with AI" button.
Visit the Manage Fields form for any entity.
Click the "Reuse existing field" link and keep adding existing fields to the entity until there are no more to add
The "Create Field Types with AI" button will no longer appear.
It seems likely that the module's custom route wants to use the same access as the main Manage Fields form it displays on - the permission 'administer ' . $entity_type_id . ' fields'. Alternatively, it should just use the create ai assisted field types permission directly.
Active
1.0
Code
Replace incorrect access check with a permission check. #3493284
Automatically closed - issue fixed for 2 weeks with no activity.