Metrics install automatically if you have SQL Monitor installed.
If you are using Redgate’s SQL Server monitoring tool, SQL Monitor, you can instantly install and run this metric on your servers.
Metric checking available worker threads on Availability Groups.
Available Worker Threads
Metric checking available worker threads on Availability Groups
The T-SQL query that will collect data
Instances to collect from
Databases to collect from
Use collected or calculated values
Leave the Use a calculated rate of change between collections check box unchecked