fullstack-feature
Load PROACTIVELY when task involves building a complete feature across multiple layers. Use when user says \"build a feature\", \"add user profiles\", \"create a dashboard\", or any request spanning database, API, UI, and tests. Orchestrates multi-agent work sequentially: schema and migrations, API endpoints, UI components, tests, and review. The runtime engine handles WRFC chains automatically via <gv> directives. Handles dependency ordering and cross-layer type sharing.