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Canonical Gymnasium Chemistry Mecklenburg-Vorpommern Cutover Readiness Audit

Date: 2026-05-12

Decision

DE-MV Chemistry is cutover-ready on the canonical Gymnasium Chemistry route.

The operational learner route is the shared Gymnasium (DE) root with the canonical Chemistry child landscape and the matching DE-MV GK/LK composition view. The retained Mecklenburg-Vorpommern source-extraction landscapes remain archive-only evidence surfaces.

Evidence

  • Lower-secondary and upper-secondary source extractions are registered:
  • curricula/DE/Gymnasium/input/MV/lower-secondary/source-extraction/DE_MV_CHEMIE_SEKI_RAHMENPLAN_2021.source-extraction.json
  • curricula/DE/Gymnasium/input/MV/upper-secondary/source-extraction/DE_MV_CHEMIE_SEKII_RAHMENPLAN_ERPROBUNGSFASSUNG_2022.source-extraction.json
  • Reviewed source-to-canonical mappings are clean and now have runtime mapping files:
  • curricula/DE/Gymnasium/mapping/DE-MV/lower-secondary/mv_chemistry_lower_secondary_to_canonical_chemistry.json
  • curricula/DE/Gymnasium/mapping/DE-MV/upper-secondary/mv_chemistry_upper_secondary_to_canonical_chemistry.json
  • The canonical learner-facing views exist for both course profiles:
  • de-mv-gym-chemistry-gk
  • de-mv-gym-chemistry-lk
  • Source-extraction landscapes are classified by runtime as compatibility-only archive surfaces through the source-landscape registry fence.

Runtime Notes

Mecklenburg-Vorpommern does not currently expose an active committed legacy Chemistry learner route comparable to the Hessen or Bayern legacy trees. The required runtime cutover check is therefore the retained-source fence plus runtime mapping discovery:

  • retained source landscapes load from the real source registry
  • retained source landscapes resolve to DE-MV
  • retained source landscapes are compatibility-only
  • GoalMappingService discovers the runtime mappings for both lower-secondary and upper-secondary source landscape IDs

Verification

Targeted backend coverage:

./gradlew test \
  --tests com.skillpilot.backend.landscape.LandscapeServiceTest \
  --tests com.skillpilot.backend.landscape.GoalMappingRepositoryFixtureTest

Additional rollout checks:

python3 scripts/render_canonical_chemistry_bundesland_status.py
python3 scripts/validate_schemas.py
(cd app && npm run validate:graph)
(cd app && npm run validate:composition-views)
git diff --check