Disable Checklist on Newly Created Projects
If your security you protocols require that Checklists be manually enabled on individual spaces, you can use this rule to automatically disable checklists when spaces are created.
Disable Checklists on Space Creation
Navigate to Jira Settings > System > Global automation.
Click Create rule.
Select the Project created trigger and click Next.

Click New action and select Create work item.
Select Same project for the and Task for the Work item type. Click Next.

Click New branch and select Branch rule / related work items.

Select All created work items in the Type of related work items dropdown. Click Next.
Click New action and select Set entity property.
Select for Entity type.
Type
com.gebsun.plugins.jira.work itemchecklist.checklist-disabled-booleanfor the Property key.Set the property value to:
CODE{ "checklistDisabled":true }Click Save.

Click New action and select Delete work item.

Click Next.
Name the rule and Turn it on.
If you are using Acceptance Criteria for Jira. Free, use acceptance-criteria.checklist-disabled-boolean for the Property key in step 10.