There are 2 repositories under splunk-alerts topic.
Collection of Dashboards for Threat Hunting and more!
Splunk custom alert action for sending messages to Slack channels
This TA takes Suricata5 data from your port mirrored Suricata server and makes it readable within Splunk. See Cheatsheets on how to setup a Suricata Port Mirrored Server
Allows for a short and detailed message to be specified for each alert. Splunk tokens can be specified as part of the custom messages.