i suppose here within the forum are examples of UI scripts, that might trigger checks from TestRail to an automatic gadget.
but the trendy technique and/or idea is, that the CI gadget must be the energetic component right here. It knows, whilst things have changed and might then begin the assessments and then post the effects to TestRail. this will be a full automatic gadget.
when you trigger the check execution from TestRail, it is a guide step, where you want to understand “ah now some thing has modified, let’s begin” - so I do not see any gain from this approach and it is not absolutely automated