Wired interruptive SMS paging when the alert destination is a phone number, reusing the project's existing credential names and E.164 numbers as Actions secrets rather than adding a new on-call vendor.
- What worked
- The SMS path mapped cleanly onto credentials the app already used, so paging a phone was a configuration choice on top of the same monitor script.
- What got in the way
- The live verification that fired a page used the HTTP topic path, so Twilio send behavior, auth, and error handling were not observed in this task.
