Changes in version 0.2.1 - Prepare the first CRAN submission with updated source links and clarified package metadata. - Assessment logic, reference tests and API are unchanged from 0.2.0. Changes in version 0.2.0 Implementation complete. Package and CRAN validation results are documented separately in the versioned project acceptance report. No publication or CRAN submission has been performed. - Individual contracts cover all 1,835 active requirements in 111 modules, including conditions, exceptions, alternatives, roles, object relationships, quantities and temporal limits. - Added 111 executable module-specific modelling contracts and 83 separately counted method steps from BSI Standards 200-1, 200-2 and 200-3, version 1.0. - Native R evaluation distinguishes unknown facts from known failures and checks collection completeness, object identities, event states, calendar deadlines and UTC timestamps. No Python runtime is required. - Coupled check decisions and coverage with the actual catalogue; coupled risk treatment with matrix calculations, implementation evidence, planned effects and institution-specific acceptance criteria. - Completed independent source reviews and targeted positive/negative reference scenarios. Runtime parity and substantive source review are separate evidence. - Added individueller_pruefablauf, using the same JSON input as the Python example. - Clearly marked paragraph self-assessments and kundenportal as legacy examples, distinct from individual substantive checks. Source edition: IT-Grundschutz Compendium 2023, including errata of 2026-03-26. Changes in version 0.1.0 Erste lokale Ausgabe für BSI IT-Grundschutz; native Python-/R-Prüfungen.