[dithering]

IMO it depends how they got there.

For me the "minimal set" of rules that can still be called Agile is a mechanism for measurement, and a retrospective. You use the retrospective to perturb the process, and you use the measurement to decide whether that perturbation was a success or a failure.

That's it - old school cybernetics. If you used feedback loops to iterate towards a successful process, you're doing Agile. If there are parts of the process that are off-limits to you (eg management insists on doorstepping your standups) then you're not doing Agile.

Of course, we "prime the pump" somewhat by throwing in a bunch of extra rules at the beginning that we know from experience are likely to work, but I think that Agile, done right, has a lot in common with Nomic.