Database design, queries, optimization, and schema management. Use when working with databases.
Scanned 9/12/2026
Install to Claude Code
Skills Directorynpx -y skills add skeletorflet/opencode-supreme-setup --skill db --agent claude-codeInstalls into .claude/skills of the current project.
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---
name: db
description: Database design, queries, optimization, and schema management. Use when working with databases.
---
## db
Design and optimize databases.
### Design principles
- Normalize to reduce redundancy
- Appropriate data types
- Index WHERE, JOIN, ORDER BY columns
- Foreign keys for integrity
- Migration scripts
### Query optimization
- EXPLAIN ANALYZE to check plans
- Avoid SELECT *
- LIMIT results
- JOINs over subqueries
- Batch in transactions
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