Checks overview

amlint runs 25 checks grouped into four categories.

code	level	category
undefined-receiver	error	Routing
no-root-route	error	Routing
bad-regex	error	Routing
unreachable-route	warn	Routing
route-match-collision	warn	Routing
groupby-ellipsis	warn	Routing
useless-continue	info	Routing
deep-nesting	info	Routing
duplicate-receiver	error	Receivers
empty-receiver	warn/info	Receivers
email-no-smarthost	error	Receivers
webhook-no-url	error	Receivers
pagerduty-no-routing-key	error	Receivers
slack-no-api-url	error	Receivers
opsgenie-no-api-key	error	Receivers
msteams-no-webhook-url	error	Receivers
template-file-missing	error/warn	Receivers
unused-receiver	info	Receivers
inhibit-no-equal	warn	Inhibition
circular-inhibition	warn	Inhibition
inhibit-same-match	info	Inhibition
repeat-before-group	warn	Timing
wait-exceeds-interval	warn	Timing
undefined-time-interval	error	Timing
global-resolve-timeout-missing	info	Timing

Severity levels

level	meaning
error	Config is broken — alerts will be lost or Alertmanager will reject the config
warn	Almost certainly not what you intended
info	Suspicious, worth reviewing — may be intentional