notify_user and alarm both push to the user's phone, so there is some surface overlap, but the descriptions sharply delineate when to use each (routine vs. urgent incident escalation). alarm_status is clearly a distinct read/check operation tied to the alarm tool.

notify_user follows a verb_noun pattern, but alarm is a bare noun and alarm_status is noun_noun. The convention is mixed, though all names remain readable and inferable from their descriptions.

Three tools is a tight, well-scoped set for a notification/escalation service: one soft notify, one hard escalation, one status check. It is slightly lean but each tool clearly earns its place.

The core lifecycle (notify, escalate, check status) is covered, but there is no tool to cancel/resolve an alarm, explicitly acknowledge it, or list past notifications/alarms. Agents must rely on out-of-band phone interaction to close out an escalation.