Databases Agent Skills for Codex CLI

Deep operational guide for 16 vector databases.

Data engineering skill for building scalable data pipelines, ETL/ELT systems, and data infrastructure.

Azure Cosmos DB JavaScript/TypeScript SDK (@azure/cosmos) for data plane operations.

PostgreSQL database optimization workflow for query tuning, indexing strategies, performance analysis, and production database management.

Guides Qdrant data volume scaling decisions.

Guides Qdrant query throughput (QPS) scaling.

Use this skill to enrich schema.yaml files for BigQuery tables in the bigquery-etl repository.

Plan, build, test, and diagnose server-side Swift persistence, database, ORM, model, migration, query, transaction, and repository work…

Consult Snowflake CREATE VIEW parameter reference before generating any CREATE VIEW DDL.

Use when configuring or working with Solid Queue for background jobs.

Enforce SOQL/SOSL safety rules, selectivity, and governor limit compliance.

SOQL optimization — selective queries, index strategy, query plans, relationship efficiency, large data volumes.

Use this skill before implementing features, lifecycle changes, runtime boundaries, persistence contracts, or architectural work where the…

Provides patterns to implement persistence layers with Spring Data JPA.

Use when reviewing SQL that affects reporting, metrics, transformations, financial logic, product logic, or stakeholder-facing outputs…

Optimize SQL query performance through EXPLAIN analysis, indexing strategies, and query rewriting for PostgreSQL, MySQL, and SQL Server.

Automatically fix SQL performance issues with step-by-step measurement.

SQL query optimization for PostgreSQL/MySQL with indexing, EXPLAIN analysis.

SQL Server 2025 and SqlPackage 170.2.70 (October 2025) — vector databases, AI integration, and modern features.

Use when: comparing SQL Server tables across instances, data migration validation, ETL verification, row mismatch detection, schema drift…

Guide for adding SQL function translations to dbplyr backends.