Add documentation for automatic Alerting workflows from detector creation (#5003)

* fix#4999 auto alerting workflows

Signed-off-by: cwillum <cwmmoore@amazon.com>

* fix#4999 auto alerting workflows

Signed-off-by: cwillum <cwmmoore@amazon.com>

* fix#4999 auto alerting workflows

Signed-off-by: cwillum <cwmmoore@amazon.com>

* fix#4999 auto alerting workflows

Signed-off-by: cwillum <cwmmoore@amazon.com>

* fix#4999 auto alerting workflows

Signed-off-by: cwillum <cwmmoore@amazon.com>

* fix#4999 auto alerting workflows

Signed-off-by: cwillum <cwmmoore@amazon.com>

* fix#4999 auto alerting workflows

Signed-off-by: cwillum <cwmmoore@amazon.com>

* fix#4999 auto alerting workflows

Signed-off-by: cwillum <cwmmoore@amazon.com>

---------

Signed-off-by: cwillum <cwmmoore@amazon.com>

_api-reference/cluster-api/cluster-settings.md

@@ -60,7 +60,8 @@ Not all cluster settings can be updated using the cluster settings API. You will
 The following request field parameters are compatible with the cluster API.
 
 | Field | Data type | Description |
-:--- | :--- | :---
+| :--- | :--- | :--- |
+| plugins.security_analytics.enable_workflow_usage | Boolean | Supports Alerting plugin workflow integration with Security Analytics. Determines whether composite monitor workflows are generated for the Alerting plugin after creating a new threat detector in Security Analytics. By default, the setting is `true`. <br> <br> When set to `true`, composite monitor workflows based on an associated threat detector's configuration are enabled. When set to `false`, composite monitor workflows based on an associated threat detector's configuration are disabled. <br> <br> For more information about Alerting plugin workflow integration with Security Analytics, see [Integrated Alerting plugin workflows]({{site.url}}{{site.baseurl}}/security-analytics/sec-analytics-config/detectors-config/#integrated-alerting-plugin-workflows). |
 | action.auto_create_index | Boolean | Automatically creates an index if the index doesn't already exist. Also applies any index templates that are configured. Default is `true`. |
 | action.destructive_requires_name | Boolean | When set to `true`, you must specify the index name to delete an index. You cannot delete all indexes or use wildcards. Default is `true`. |
 | cluster.indices.close.enable | Boolean | Enables closing of open indexes in OpenSearch. Default is `true`. |

_observing-your-data/alerting/composite-monitors.md

@@ -63,7 +63,7 @@ In this simple example, the first monitor could be a per document monitor config
 
 ## Managing composite monitors with the API
 
-You can manage composite monitors using the REST API or OpenSearch Dashboards. This section covers API functionality for composite monitors.
+You can manage composite monitors using the OpenSearch REST API or [OpenSearch Dashboards](#creating-composite-monitors-in-opensearch-dashboards). This section describes API functionality for composite monitors.
 
 ### Create composite monitor
 

_security-analytics/sec-analytics-config/detectors-config.md

@@ -144,6 +144,14 @@ To set up an alert for a detector, continue with the following steps:
 
 1. Review the specifications for the detector and select **Create detector** in the lower-right corner of the screen. The detector details for the new detector are displayed. When you navigate to the main **Threat detectors** page, the new detector appears in the list.
 
+## Integrated Alerting plugin workflows
+
+By default, when you create a threat detector, the system automatically creates a composite monitor and triggers workflows for the Alerting plugin. The detector's rules are converted into search queries for the Alerting plugin monitor, and the monitor executes its queries according to a schedule derived from the detector's configuration.
+
+You can change the behavior of automatically generated composite monitors by enabling or disabling the workflow functionality with the `plugins.security_analytics.enable_workflow_usage` setting. This setting is defined using the [Cluster settings API]({{site.url}}{{site.baseurl}}/api-reference/cluster-api/cluster-settings/).
+
+For more information about composite monitors and their workflows, see [Composite monitors]({{site.url}}{{site.baseurl}}/observing-your-data/alerting/composite-monitors/).
+
 ---
 ## What's next