Django development standards for the Tellurium Games World of Darkness application. Use when: creating/editing models (characters, items, locations), implementing CRUD views, building forms, creating templates, configuring URLs, working with permissions, caching, migrations, testing, validation, deployment, or management commands. Triggers on: model inheritance patterns, polymorphic models, view mixins, gameline-specific code (vampire/werewolf/mage/wraith/changeling/demon/mummy/hunter), tg-card components, XP/freebie transactions, ST permissions, character templates, frontend styling.