4e8e5069fa
- Added: api-patterns, app-builder, architecture, bash-linux, behavioral-modes, clean-code, code-review-checklist, database-design, deployment-procedures, docker-expert, documentation-templates, game-development, geo-fundamentals, i18n-localization, lint-and-validate, mobile-design, nestjs-expert, nextjs-best-practices, nodejs-best-practices, parallel-agents, performance-profiling, plan-writing, powershell-windows, prisma-expert, python-patterns, react-patterns, red-team-tactics, seo-fundamentals, server-management, tailwind-patterns, tdd-workflow, typescript-expert, vulnerability-scanner - Updated README: skill count 179 → 223 - Added credit for vudovn/antigravity-kit (MIT License) Source: https://github.com/vudovn/antigravity-kit
53 lines
1.5 KiB
Markdown
53 lines
1.5 KiB
Markdown
---
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name: database-design
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description: Database design principles and decision-making. Schema design, indexing strategy, ORM selection, serverless databases.
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allowed-tools: Read, Write, Edit, Glob, Grep
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---
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# Database Design
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> **Learn to THINK, not copy SQL patterns.**
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## 🎯 Selective Reading Rule
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**Read ONLY files relevant to the request!** Check the content map, find what you need.
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| File | Description | When to Read |
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|------|-------------|--------------|
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| `database-selection.md` | PostgreSQL vs Neon vs Turso vs SQLite | Choosing database |
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| `orm-selection.md` | Drizzle vs Prisma vs Kysely | Choosing ORM |
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| `schema-design.md` | Normalization, PKs, relationships | Designing schema |
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| `indexing.md` | Index types, composite indexes | Performance tuning |
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| `optimization.md` | N+1, EXPLAIN ANALYZE | Query optimization |
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| `migrations.md` | Safe migrations, serverless DBs | Schema changes |
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---
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## ⚠️ Core Principle
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- ASK user for database preferences when unclear
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- Choose database/ORM based on CONTEXT
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- Don't default to PostgreSQL for everything
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---
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## Decision Checklist
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Before designing schema:
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- [ ] Asked user about database preference?
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- [ ] Chosen database for THIS context?
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- [ ] Considered deployment environment?
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- [ ] Planned index strategy?
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- [ ] Defined relationship types?
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---
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## Anti-Patterns
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❌ Default to PostgreSQL for simple apps (SQLite may suffice)
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❌ Skip indexing
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❌ Use SELECT * in production
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❌ Store JSON when structured data is better
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❌ Ignore N+1 queries
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