For 1) hopefully Eve, or a tool like it, can let you do things like: - Show me all the graphs which don't include this months data, and why / what they are usin

For 1) hopefully Eve, or a tool like it, can let you do things like: - Show me all the graphs which don't include this months data, and why / what they are using instead - Show me the graphs that will change (and/or the ones that won't) when I add this months data Basically searching forwards and backwards to find where issues are, with enough info/context to resolve mistakes 'bugs'. And then ideally it would be possible to state an invariant 'this graph must include this months data' and have the system automatically verify it for you.