Eight claims worth testing
The new claim lab offers eight short cases: boundaries, queue accounting, effective variety, organisational functions, participation, method choice, averages, and causal hypotheses.
Each has a worked comparison, a counterexample, a changed case, and labelled connections to existing method practice and source routes. Three journeys start with an actual decision. A task-only worksheet supports teaching and discussion.
Release 0.28 expands the reader material. The canonical graph and source-owner-reviewed comparator are unchanged. No independent pedagogical review or fresh primary-source review is claimed.