An Aggregator Rule is a simple text file ending in .rule. At the beginning of the file you can put one or more directive to control the Interpreter. It is recommended to add the event directive. The remaining part of the file is a normal programming language with access to a few objects and interact with Azure DevOps.

.directive2 arg1
.directive3 arg1 arg2
 *  valid C# code using predefined Objects, Variables and Types

Directives #

A directive is metadata used to change a behavior of the Rule Interpreter. The complete list of directives is here.

C# language #

The Rule language use C# as defined in Microsoft documentation. The code uses predefined items specific for the Azure DevOps events supported by Aggregator.

Pre-defined Variables #

You can access any of these variable in any rule.

eventTypestringName of event that triggered the rule.
loggerIAggregatorLoggeroffers methods to log messages with different levels.

More details in Common objects.

Work Item Variables #

The following variables are available only for Work Item events.

selfWorkItemWrapperThe Work Item which triggered the rule.
selfChangesWorkItemUpdateWrapperRepresents the changes made to the Work Item object. Valid only for the workitem.updated event.
storeWorkItemStoreAllows retrieval, creation and removal of work items.

More details in WorkItem event objects.