Commands

amtool check-config

amtool check-config <alertmanager.yml>…

Risk: Safe

What it does

Checks an Alertmanager config and lists what it found: routes, receivers, inhibit rules.

When to use it

Before you reload Alertmanager with a changed file.

Example

$ amtool check-config alertmanager.yml

Learn it in: Alertmanager: route, group, silence · Official docs