Database design principles and decision-making. Schema design, indexing strategy, ORM selection, serverless databases.
Learn to THINK, not copy SQL patterns.
Read ONLY files relevant to the request! Check the content map, find what you need.
| File | Description | When to Read |
|---|---|---|
database-selection.md | PostgreSQL vs Neon vs Turso vs SQLite | Choosing database |
orm-selection.md | Drizzle vs Prisma vs Kysely | Choosing ORM |
schema-design.md | Normalization, PKs, relationships | Designing schema |
indexing.md | Index types, composite indexes | Performance tuning |
optimization.md | N+1, EXPLAIN ANALYZE | Query optimization |
migrations.md| Safe migrations, serverless DBs |
| Schema changes |
Before designing schema:
❌ Default to PostgreSQL for simple apps (SQLite may suffice) ❌ Skip indexing ❌ Use SELECT * in production ❌ Store JSON when structured data is better ❌ Ignore N+1 queries
Every operational execution of this skill MUST generate a SELT (Standardized Experience Log Template) "Shadow Log". This log captures the inner metacognitive deconstruction and dissonance resolution BEFORE taking action. All Shadow Logs MUST strictly utilize the canonical Block A: Universal Identification & Provenance (UIP-V15) header to ensure Isomorphic Provenance.