Use Task.CompletedTask

Proprietary

Replace Task.FromResult(0), Task.FromResult(true), and Task.FromResult(false) with Task.CompletedTask when the return type is Task (not Task<T>).

OpenRewrite.Recipes.CSharp.Migration.Dotnet.Net9.UseTaskCompletedTask

mod run . --recipe=OpenRewrite.Recipes.CSharp.Migration.Dotnet.Net9.UseTaskCompletedTask

Install it once, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.