> ## Documentation Index > Fetch the complete documentation index at: https://docs.metlo.com/llms.txt > Use this file to discover all available pages before exploring further. # Test Rules If you want to automatically apply an template to a set of endpoints you can define a rule on the [tests page](https://app.metlo.com/tests?tab=rules). To define a rule you need to specify: * **Rule Name** - A name for your rule * **Tests** - A set of test templates to apply to the endpoints * **Endpoint Filter** - A method and regex filter that selects the endpoints you want to test * **Host Filter** - A regex filter that selects the hosts you want to test * **Auto Enable** - Whether any test created by this rule should be enabled by default or not After you make a rule tests will be created for all endpoints that match your filters. Any new endpoint that matches will also have a test created automatically! 3808