It would be nice to have the amtool behaviour in README.md and here.
amtool
For example, there is no example for 'amtool.yml' config file apart from this.
Documentation is available within the tool itself by appending the --help flag to commands.
--help
Hey I started to play with amtool and made a PR (https://github.com/prometheus/alertmanager/pull/758) to help you to start with it.
Most helpful comment
Documentation is available within the tool itself by appending the
--helpflag to commands.