Work with MongoDB (document database, BSON documents, aggregation pipelines, Atlas cloud) and PostgreSQL (relational database, SQL queries, psql CLI, pgAdmin). Use when designing database schemas, writing queries and aggregations, optimizing indexes for performance, performing database migrations, configuring replication and sharding, implementing backup and restore strategies, managing database users and permissions, analyzing query performance, or administering production databases.
7.2
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Backend Development
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Excellent dual-database skill covering MongoDB and PostgreSQL comprehensively. The description clearly articulates when to use this skill for database operations. SKILL.md provides strong decision guidance (when to use each DB), quick-start examples, common operations comparison, and well-organized navigation to 8 reference files covering specialized topics. Python utilities add practical automation. Structure is clean with a helpful comparison table. Novelty is solid—consolidating two major database systems with selection criteria, cross-platform operations, and utility scripts saves significant research and implementation time for a CLI agent tackling database tasks. Minor improvement possible: even more explicit examples of complex scenarios (migrations, replication configs) in the main file, though these are likely covered in referenced files.
mrgoonie
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