How can I check in automation rule that issue is not linked to issues in specific project?

[Alex Kiselev _Itransition_]

Hi community,

I'm implementing the rule where I create Dev ticket by Service ticket on the specific transition.

But I don't have to create Dev ticket if there is at least one link to Dev ticket exists. (Other links are possible).

It looks like I need some regex condition for {{issue.issuelinks}}.

Could you help please?

Thank you in advance.

Best regards,

Alex.