Example use task setup/teardown to modify build state

taskname.cake

public class BuildData
{
    public string TaskName { get; set; }
}

Setup(context => new BuildData());

TaskSetup<BuildData>(
    (context, data) => data.TaskName = context.Task.Name
);

TaskTeardown<BuildData>(
    (context, data) => data.TaskName = null
);

Task("My Task")
    .Does<BuildData>(
        (context, data)
            => context.Information("Executing {0}", data.TaskName)
);

RunTarget("My Task");