MCP Grafana vs Heimdall MCP

alerting_manage_silences

Manage Grafana alerting silences. A silence temporarily suppresses notifications for alerts whose labels match a set of matchers, without changing the alert rules themselves. Operations: - 'list': list existing silences. Optionally filter by rule_uid (matches the __alert_rule_uid__ label) or by matchers. - 'get': retrieve a single silence by silence_id. - 'create': create a new silence. Requires matchers, starts_at, ends_at (RFC3339) and comment. - 'update': modify an existing silence by silence_id. Requires matchers, starts_at, ends_at and comment. The id is only kept when the posted matchers and starts_at match the stored ones, so pass back the starts_at returned by 'get'; otherwise Alertmanager expires the old silence and returns a new id. - 'delete': expire/remove a silence by silence_id. When to use: - Muting noisy or expected alerts during maintenance windows - Inspecting or cleaning up existing silences When NOT to use: - Changing alert rule configuration or state (use alerting_manage_rules) - Changing how alerts are routed to receivers (use alerting_manage_routing)

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