Should an asmdef fail to compile if the auto-generated projects also fail?

I have a tool that's compiled via an assembly definition.

If there is a script error in a normal user script outside assembly definitions (Assembly-CSharp), then the tool's assembly definition won't try to recompile until I fix it.

That seems like an unnecessary limitation, because the AsmDef is not dependent on the auto-generated assemblies like Assembly-CSharp.

Is this by design or is it a bug?