Checking for changesets

Using @changesets/cli, there is a status command. See the docs for it in the @changesets/cli readme

We have a github bot and a bitbucket addon that alert users of missing changesets.

If you want to cause a failure in CI on missing changesets (not recommended), you can run changeset status --since=main, which will exit with a status code of 1 if there are no new changesets.