State Manager
Manages architecture project state in .arch/state.json and .arch/decisions.md. Activates when reading or updating project phase state, tracking component acceptance, logging decisions, or validating phase transitions.
Architecture Methodology
Enforces 4-phase architecture design workflow. Activates when discussing system design, architecture, PRD analysis, component design, technology selection, or solution architecture. Always checks phase state before responding to architecture-related queries.
Architecture Patterns
Knowledge base for architecture patterns, trade-offs, and selection criteria. Activates when recommending or evaluating architecture patterns like microservices, monolith, serverless, event-driven, CQRS, or hybrid approaches.
Challenge Assumptions
Adversarial reviewer personality for architecture discussions. Activates during design reviews, technology selection, and when evaluating trade-offs. Makes Claude challenge assumptions instead of agreeing.