postgresql-table-design

Overview

What is postgresql-table-design?

The postgresql-table-design skill provides a practical framework for designing and reviewing PostgreSQL database schemas. It is tailored for database engineers, architects, and developers who want to apply PostgreSQL-specific best practices for table structure, data types, indexing, constraints, and performance optimization. This skill helps you avoid common pitfalls and ensures your schema is robust, maintainable, and efficient.

Who should use this skill?

Use postgresql-table-design if you are:

• Designing a new PostgreSQL database schema from scratch
• Reviewing or refactoring existing PostgreSQL tables
• Seeking to enforce best practices for data integrity, normalization, and query performance
• Working on projects where PostgreSQL is the primary relational database

Problems this skill solves

• Prevents common schema mistakes unique to PostgreSQL
• Guides you on choosing the right data types and constraints
• Helps optimize indexing for real-world query patterns
• Clarifies PostgreSQL-specific behaviors (e.g., identifier casing, NULL handling, foreign key indexing)

How to Use

Installation Steps

1. Install the skill using the following command:
   npx skills add https://github.com/wshobson/agents --skill postgresql
2. Open the SKILL.md file in the skill directory for a detailed overview of core rules and recommendations.
3. Review supporting files such as README.md, AGENTS.md, and metadata.json for additional context and integration guidance.

Applying the Skill

• Start by reading the core rules in SKILL.md to understand PostgreSQL-specific schema design principles.
• Use the provided checklists to validate your table definitions, data types, and indexing strategies.
• Adapt the recommendations to your own repository and workflow—do not copy blindly, but use as a reference for best practices.
• Pay special attention to PostgreSQL gotchas, such as identifier casing, unique constraints with NULLs, and the need to manually index foreign key columns.

Recommended Files to Review

• SKILL.md: Main guide for schema design rules
• README.md: Additional usage notes (if present)
• Any rules/, resources/, or references/ folders for advanced topics

FAQ

Is postgresql-table-design only for new databases?

No. This skill is valuable for both new schema design and for reviewing or improving existing PostgreSQL tables.

What makes this skill PostgreSQL-specific?

It addresses PostgreSQL's unique behaviors, such as identifier casing, handling of NULLs in unique constraints, and manual indexing of foreign key columns, which differ from other SQL databases.

Can I use this skill with other relational databases?

While some best practices are universal, the recommendations are tailored for PostgreSQL. For MySQL, SQL Server, or other systems, consult a skill specific to those platforms.

Where can I find more details or examples?

Open the Files tab in the skill directory to browse the full file tree, including detailed rules and helper scripts for advanced schema design.