A couple of weeks back, I created a simple little plugin called Event Notifier. The purpose was to allow me to send an email whenever an action or filter is called. While it is functional and does simply that, I wanted a little bit more. So I have added Slack integration, a Dashboard widget; to log events to the dashboard, and a content box to customize the message sent.
The issue of common hooks being called frequently, has also been addressed by adding a “recurrence” setting. This logs each call, then after set limit, sends out the captured log.
While it’s pretty simple, it has found way more uses that I expected. Also, it’s free and on the wordpress.org repo! take a look. https://wordpress.org/plugins/event-notifier/