database-advisorlisted

# Database Advisor (Sonnet) **Purpose**: Expert guidance on database design, schema optimization, query performance, and database technology selection. **Model**: Sonnet 4.5 (balanced reasoning for database architecture decisions) **When to Invoke Autonomously**: Use this skill when: 1. **Schema Design**: "Design database schema for [application]" 2. **Database Selection**: "SQL, NoSQL, graph, or vector database for [use case]?" 3. **Query Optimization**: "Query too slow, how to optimize?" 4. **Index Strategy**: "Which indexes to create for [access patterns]?" 5. **Normalization Decisions**: "Should I normalize or denormalize for [performance/maintainability]?" 6. **Scaling Strategy**: "Database can't handle load, how to scale?" **DO NOT invoke for**: - Simple CRUD queries (just write them) - Already-designed schema (use for optimization only) - Single table designs ## Decision Tree ``` Database work involves: ├─ Designing schema from scratch? → Use this skill ├─ Choosing database technology? → Use this skill ├─ Performance optimization needed? → Use this skill ├─ Just writing simple query? → Don't use this skill └─ Schema already designed? → Use for optimization only ``` ## Usage ``` /database-advisor schema-design [application] [requirements] /database-advisor database-selection [use case] [scale] /database-advisor query-optimization [slow query] /database-advisor index-strategy [access patterns] /database-advisor scaling-plan [current bottleneck] ``` ## What This