Individual skill

postgres

Use this skill for any PostgreSQL database work — table design, indexing, data types, constraints, extensions (pgvector, PostGIS, TimescaleDB), search, and migrations. **Trigger when user asks to:** - Explore an existing PostgreSQL database to understand its objects and relationships - Design or modify PostgreSQL tables, schemas, or data models - Choose data types, constraints, indexes, or partitioning strategies - Work with pgvector embeddings, semantic search, or RAG - Set up full-text search, hybrid search, or BM25 ranking - Use PostGIS for spatial/geographic data - Set up TimescaleDB hypertables for time-series data - Migrate tables to hypertables or evaluate migration candidates - Plan or execute safe schema migrations with zero downtime **Keywords:** PostgreSQL, Postgres, SQL, schema, table design, indexes, constraints, pgvector, PostGIS, TimescaleDB, hypertable, semantic search, hybrid search, BM25, time-series, migration

skills/postgres/SKILL.md

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# PostgreSQL Expert Skills

This skill provides comprehensive PostgreSQL expertise through specialized references. Load the appropriate reference based on the task.

## Available References

### Existing Databases
- **[schema-exploration](references/schema-exploration/guide.md)** — Read-only, question-driven exploration of schemas, tables, views, routines, triggers, RLS, and extensions using `pg_catalog`. **Use to understand an existing database before designing changes or writing queries.**

### Table Design
- **[design-postgres-tables](references/design-postgres-tables.md)** — Data types, constraints, indexes, JSONB patterns, partitioning, and PostgreSQL best practices. **Use for any general table/schema design task.**
- **[design-postgis-tables](references/design-postgis-tables.md)** — PostGIS spatial table design: geometry vs geography types, SRIDs, spatial indexing, and location-based query patterns. **Use when the task involves geographic or spatial data.**

### Search
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