The Verify the behavior of your intent in Simulator or on-device documentation says that it's sufficient to build and run the app and open the Shortcuts app to test an app intent, but that doesn't seem to be the case. I always needed to at least move the debugged app to the Applications folder before the app intents showed up in Shortcuts, and even then, most of the times I also need to wait a lot or restart the Mac. When updating an existing app intent (for instance by changing its title), building the app, overwriting the existing one in the Applications folder and restarting Shortcuts is not sufficient to make the new title appear in Shortcuts.
Is there an efficient way to test app intents in the Shortcuts app? I already created FB15638502 one month ago but got no response.