What problem does it solve? It prevents incomplete or boilerplate architecture blueprints from reaching the implementation phase, which would otherwise cause wasted engineering cycles and ambiguous task breakdowns. ## Core Features & Use Cases - Structure Enforcement: Requires nine mandatory sections (Goal & Architecture, Core Concept, Components, Data Model, API Contracts, Security, Execution Constraints, Rollback Plan, E-## Task Breakdown) before any file is written to .ai/blueprints/. - Quality Gates: Blocks blueprints shorter than 20 lines, rejects TBD/TODO placeholders, and forbids generic boilerplate content. - Task Registration: After writing a validated blueprint, it hands off to the task-planner skill to create corresponding E-## engineering tasks in TASKS.md. - Use Case: When designing a new authentication domain, draft the blueprint in-context, validate all required sections, then write it to .ai/blueprints/auth.md with linked implementation tasks. ## Quick Start Ask the AI to design a blueprint for a new feature domain and enforce the required blueprint structure before saving it to .ai/blueprints/.