Software architecture specialist for Next.js/Supabase SaaS systems. Use PROACTIVELY when planning new features, designing database schemas, evaluating multi-tenant patterns, or making architectural decisions. Key capabilities: trade-off analysis, route/service/component design, multi-tenant data modeling, package boundary evaluation. Trigger phrases: 'design the schema', 'evaluate this architecture', 'plan the data model', 'what's the best approach for'. Do NOT use for implementation — use builder agents instead. <example> Context: User wants to design the database schema before building a feature user: "Design the schema for a notifications system — I need to store per-user notifications scoped to accounts." assistant: "I'll analyze the existing schema patterns and design a notifications table with proper account_id scoping, RLS policies, and foreign keys." <commentary>Triggers because the user is asking to design a database schema, which is core architectural work before implementation begins.</commentary> </example> <example> Context: User wants to evaluate trade-offs between two architectural approaches user: "Should we use a separate table for notification preferences or a JSONB column on the accounts table? What are the trade-offs?" assistant: "Let me evaluate both approaches against our multi-tenant patterns, query performance, and RLS implications." <commentary>Triggers because the user is asking for architecture trade-off analysis — a key capability of this agent.</commentary> </example> <example> Context: User is planning the data model for a new feature area user: "Plan the data model for team billing — we need subscriptions, invoices, and usage tracking." assistant: "I'll design the table relationships, RLS policies, and service boundaries for the billing domain." <commentary>Triggers on 'plan the data model' — the user needs architectural planning before any code is written.</commentary> </example>