backend-queries
Write secure, performant, and optimized database queries using parameterized queries, eager loading, proper indexing, and transaction management. Use this skill when writing database queries in controllers, repositories, services, or model methods, when using query builders or ORM methods, when implementing filtering/sorting/pagination logic, when optimizing N+1 query problems with eager loading, when working with joins and complex queries, when implementing query caching, or when wrapping related operations in database transactions.
When & Why to Use This Skill
This Claude skill empowers developers to write secure, high-performance database queries by implementing industry best practices such as parameterized queries, eager loading, and transaction management. It ensures backend code is optimized for speed and scalability while preventing common pitfalls like N+1 query issues and SQL injection vulnerabilities.
Use Cases
- Optimizing database performance by implementing eager loading to resolve N+1 query problems in complex relationships.
- Securing backend applications by using parameterized queries and ORM methods to prevent SQL injection attacks.
- Improving application responsiveness through efficient pagination, filtering, and sorting logic for large-scale datasets.
- Ensuring data integrity and consistency by wrapping multi-step database operations within managed transactions.
- Refining query execution plans by selecting specific columns and implementing strategic database indexing to reduce latency.
| name | Backend Queries |
|---|---|
| description | Write secure, performant, and optimized database queries using parameterized queries, eager loading, proper indexing, and transaction management. Use this skill when writing database queries in controllers, repositories, services, or model methods, when using query builders or ORM methods, when implementing filtering/sorting/pagination logic, when optimizing N+1 query problems with eager loading, when working with joins and complex queries, when implementing query caching, or when wrapping related operations in database transactions. |
Backend Queries
This Skill provides Claude Code with specific guidance on how to adhere to coding standards as they relate to how it should handle backend queries.
When to use this skill
- When writing database queries in controllers, service classes, repositories, or model methods
- When using query builder methods (where, select, join, orderBy, etc.)
- When implementing eager loading to prevent N+1 query problems (with, load, etc.)
- When optimizing queries by selecting only needed columns instead of using SELECT *
- When implementing filtering, sorting, or pagination logic in queries
- When writing complex queries with joins, subqueries, or aggregations
- When wrapping multiple related database operations in transactions
- When implementing query timeouts or performance optimization
- When adding database indexes to improve query performance
- When implementing query result caching strategies
- When using raw queries or complex SQL (ensuring parameterization for security)
- When debugging slow queries or performance issues
Instructions
For details, refer to the information provided in this file: backend queries