We’ve heard from many customers that they are not confident about the impact of changes to their config rules. As a result, they double-check their work and run experiments to verify that the changed config caches the things they intended and more importantly, doesn’t cache things they didn’t intend.

To make the impact of cache config changes more visible we’ve built a new page where you can see the impact of new or updated caching rules on your existing operations right in the UI before saving your config changes.

For power users who prefer managing their config through git and the CLI we’ve also added CLI support:

stellate config preview [--service <service name>] [--browser]

This command generates a link to your Stellate dashboard where you can see the impact of your changes on your recent operations. The --browser flag will open the link in your default browser.

We hope this helps our customers feel confident when making changes to their caching config. We are already working hard on the next iteration of “the preview tool” and welcome your feedback.